# 2026 & 2027 Tech OA & Interview Questions **A community-maintained question bank for 2026 & 2027 software engineering online assessments and technical interviews, covering coding, SQL, system design, object-oriented design (OOD), and AI coding.**
[![Last update](https://img.shields.io/github/last-commit/perixtar/2026-Tech-OA-by-FastPrep/master?style=for-the-badge&label=LAST%20UPDATE&color=00C853)](https://github.com/perixtar/2026-Tech-OA-by-FastPrep/commits/master) [![GitHub stars](https://img.shields.io/github/stars/perixtar/2026-Tech-OA-by-FastPrep?style=for-the-badge&logo=github&color=FFB300&label=STARS)](https://github.com/perixtar/2026-Tech-OA-by-FastPrep/stargazers) [![Question bank](https://img.shields.io/badge/QUESTION%20BANK-1%2C600%2B-FF6D00?style=for-the-badge)](https://www.fastprep.io) [![Companies](https://img.shields.io/badge/COMPANIES-160%2B-2962FF?style=for-the-badge)](#coverage) [![Discord](https://img.shields.io/badge/DISCORD-JOIN%20US-5865F2?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/kSbWpSGUTH) how it works · coverage · question bank · contribute · community

```console $ fastprep sync --season 2026 [✓] indexed 1,600+ real OA & interview questions on this board [✓] tracked 160+ companies · Accenture → Zscaler [✓] cadence updated multiple times a week [→] pro tip hit ⭐ Star + 👁 Watch above to catch every new drop ``` --- ## ⚙️ How it works | Step | What to do | | --- | --- | | 🔍 **Search** | Ctrl / ⌘ + F your company in the [question bank](#question-bank) below | | 📄 **Open** | every row links to the full question, rebuilt from real candidate reports | | 🧪 **Practice** | hit `Practice` to solve it on [FastPrep](https://www.fastprep.io) with an editor and test cases | | 🔔 **Stay ahead** | click `Watch` at the top of this page — new OAs land here first | > 🙏 If this board saves you time, a ⭐ **star** helps other candidates find it — and keeps the update engine running. ## 📊 Coverage ```text top tracked companies ──────────── snapshot · Jul 2026 ── Amazon ██████████████████████ 369 Google ██████ 99 IBM █████ 83 TikTok ████ 74 Microsoft ████ 65 Salesforce ███ 51 Uber ███ 51 Snowflake ██ 43 JP Morgan ██ 33 Cisco ██ 32 … + 248 more companies in the table below ↓ ```

🏢 Full company list (258+) — click to expand

Accenture, Adobe, Adyen, Affirm, Agoda, Airbnb, Airtable, Airwallex, Akuna, Akuna Capital, Alarm.com, Amazon, American Express, Amperity, Anduril, Anthropic, Apple, Applied Intuition, Arista Networks, Asana, Assort Health, Atlassian, Attentive, Autodesk, Axon, Barclays, Baseten, Bilt Rewards, BitGo, Blackrock, Blinkit, Bloomberg, BNP, BNY Mellon, Boston Consulting Group, Box, Braze, Brex, ByteDance, Canva, Capillary Technologies, Capital One, Careem, Chicago Trading, Circle, Cisco, Citadel, ClearTax, Cloudflare, Codeium, Cognitiv, Cohere, Coinbase, Commvault, Confluent, Cresta, CrowdStrike, Crusoe, Cursor, Cvent, Databricks, Datadog, DE Shaw, Decagon, Deloitte, Deutsche Bank, DigitalOcean, Discord, Distyl AI, DoorDash, Dropbox, DRW, DTCC, Eat Club, eBay, Elastic, Epam, Epify, Ericsson, Expedia, FactSet, Figma, Fivetran, Flexport, Flipkart, FluidStack, Fortinet, GE Vernova, Geico, General Motors, Geneva Trading, Giga, GitHub, Gojek, Goldman Sachs, Google, Grab, Grammarly, Grubhub, Guidewire, Gusto, HackerRank, Hadrian, Harness, Harvey, Headlands, Headway, HSBC, Hudson River Trading, Hyper Verge, IBM, IDFC, Illumio, IMC, Indeed, Infosys, Instacart, Intuit, IXL Learning, Jane Street, JP Morgan, JPMorgan Chase, Juspay, LinkedIn, Lyft, MathWorks, Matroid, Maven Securities, McKinsey, Meesho, Mercor, Mercury Insurance, Meta, Micro1, Microsoft, Mintlify, MongoDB, Morgan Stanley, Moveworks, NatWest, Netflix, New Relic, Nextdoor, Nike, Inc., Nubank, Nuro, Nutanix, Nvidia, Observer.AI, Odoo, Okta, Omnissa, OnePay, Onix, OpenAI, Opendoor, Optiver, Oracle, Oscar Health, Otter.ai, Oura, Palantir, Patreon, Paypal, PayPay, Perplexity AI, PhonePe, Pinterest, Plaid, Point72, Postman, Publicis Sapients, QRT, Quince, Quora, Ramp, Razorpay, Reddit, RedNote, Remitly, Replit, Retell AI, Revolut, Rippling, Robinhood, Roblox, Roku, Rubrik, Rupeek, Rurik, Safe Security, Salesforce, Samsara, Samsung, Sarvam AI, SavantLabs, Scale AI, SeekOut, ServiceNow, Shopify, Sierra, Sig, Skyscanner, Slack, Snap Inc., Snowflake, Sofi, SpaceX, Splunk, Spotify, Spotnana, Squarepoint, StackAdapt, Stripe, Superhuman, Susquehanna International Group, Swiggy, Target, TCS, Tekion, Temu, Tesla, The D. E. Shaw Group, ThoughtSpot, TikTok, Toast, Toshiba, Trade Desk, Trend Micro, Twilio, Twitch, Two Sigma, Uber, Uber Freight, Upstart, Vanta, Verkada, Visa, Walleye Capital, Walmart, Wayfair, Waymo, Wells Fargo, Whatnot, Wolverine Trading, Workday, Xperi, YahoO, Yelp, ZipRecruiter, Zolando, ZoloStays, Zomato / Eternal, Zoom, Zoox, Zopsmart, Zorvyn, Zscaler.

## 🛰️ Spotted a fresh OA? Feed the pipeline — we'll turn it into a practice problem for the whole community. 🫶 - 🐛 **Open an issue** with the [OA submission template](https://github.com/perixtar/2026-Tech-OA-by-FastPrep/issues/new?template=oa-submission.yml) - 💬 **Ping Jane on [Discord](https://discord.gg/kSbWpSGUTH)** with the company, question, and date seen Please keep it source-safe — no confidential screenshots or full proprietary statements; a short summary is enough. Full checklist in [CONTRIBUTING.md](CONTRIBUTING.md). ## 🐳 Community

### Join the community for OA drops, interview intel, and prep talk 🥑

--- ## 🗂️ Question Bank

⬇ jump to bottom

_{Newest updates first · 🔥 added in the last 2 weeks · 🆕 in the last 45 days} _{Formats: [Coding (1,763)](formats/coding.md) · [SQL (8)](formats/sql.md) · [System design (257)](formats/system-design.md) · [Low-level design (53)](formats/low-level-design.md) · [AI coding (28)](formats/ai-coding.md)} _{System design, low-level design/OOD, and AI coding rows sync hourly from FastPrep's public, candidate-safe catalogs. Updated uses the latest reported sighting when available, otherwise the first public sync date. Unattributed means no source-backed employer was reported.} [p]: assets/practice-button.svg | Company | OA / Interview Question | Format | Practice | Updated | | :-- | :-- | :-- | :-: | :-- | | **Roblox** | [Rate Limiter Sliding Window With Per-Entity Limits](https://www.fastprep.io/problems/roblox-rate-limiter-sliding-window-per-entity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-rate-limiter-sliding-window-per-entity) | 🔥 Sep 02, 2026 | | **DoorDash** | [Food Review System](https://www.fastprep.io/system-design/food-review-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/food-review-system) | 🔥 Sep 01, 2026 | | **Amazon / Goldman Sachs** | [Repair recurring payments in the Wallet backend](https://www.fastprep.io/project-coding/repair-recurring-wallet-payments) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/repair-recurring-wallet-payments) | 🔥 Sep 01, 2026 | | **Goldman Sachs** | [Maximize Element Frequency](https://www.fastprep.io/problems/goldman-sachs-maximize-element-frequency) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-maximize-element-frequency) | 🔥 Sep 01, 2026 | | **Goldman Sachs** | [Notification Deduplication Window](https://www.fastprep.io/problems/goldman-sachs-notification-deduplication) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-notification-deduplication) | 🔥 Sep 01, 2026 | | **Stripe** | [Request Routing System](https://www.fastprep.io/problems/stripe-request-routing-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-request-routing-system) | 🔥 Sep 01, 2026 | | **Stripe** | [Incident Monitor](https://www.fastprep.io/problems/stripe-incident-monitor) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-incident-monitor) | 🔥 Sep 01, 2026 | | **DoorDash** | [Dasher Pay with Store Waits and Peak Hours](https://www.fastprep.io/problems/doordash-dasher-pay) | Coding | [![Practice][p]](https://www.fastprep.io/problems/doordash-dasher-pay) | 🔥 Sep 01, 2026 | | **Amazon** | [Maximum Frequency Stack](https://www.fastprep.io/problems/amazon-maximum-frequency-stack) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-frequency-stack) | 🔥 Sep 01, 2026 | | **Goldman Sachs** | [The Maze](https://www.fastprep.io/problems/goldman-sachs-the-maze) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-the-maze) | 🔥 Sep 01, 2026 | | **JPMorgan Chase** | [Top K Frequent Values Across Key-Partitioned Shards](https://www.fastprep.io/problems/jpmorgan-chase-top-k-frequent-values-distributed) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-chase-top-k-frequent-values-distributed) | 🔥 Sep 01, 2026 | | **Mercor** | [Shortest Path in a Grid with Obstacles Elimination](https://www.fastprep.io/problems/mercor-shortest-path-in-grid-with-obstacles-elimination) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mercor-shortest-path-in-grid-with-obstacles-elimination) | 🔥 Sep 01, 2026 | | **Microsoft** | [Arithmetic Expression Evaluator](https://www.fastprep.io/problems/microsoft-arithmetic-expression-evaluator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-arithmetic-expression-evaluator) | 🔥 Sep 01, 2026 | | **Microsoft** | [Employee Hierarchy Cycle and Depth Analysis](https://www.fastprep.io/problems/microsoft-employee-hierarchy-cycle-and-depth) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-employee-hierarchy-cycle-and-depth) | 🔥 Sep 01, 2026 | | **Microsoft** | [Most Visited String Sectors](https://www.fastprep.io/problems/microsoft-most-visited-string-sectors) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-most-visited-string-sectors) | 🔥 Sep 01, 2026 | | **Postman / Anduril / DigitalOcean / Oracle / Adobe / Uber Freight / Grab / Goldman Sachs** | [Design a URL Shortening Service](https://www.fastprep.io/system-design/url-shortening-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/url-shortening-service) | 🔥 Aug 31, 2026 | | **Salesforce / Replit / Sarvam AI / Microsoft / Gojek / Goldman Sachs** | [Design an Event-Driven Notification System](https://www.fastprep.io/system-design/event-driven-notification-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/event-driven-notification-system) | 🔥 Aug 31, 2026 | | **Uber Freight** | [Design an In-Memory File System](https://www.fastprep.io/low-level-design/in-memory-file-system) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/in-memory-file-system) | 🔥 Aug 31, 2026 | | **Snowflake** | [Design an Interactive SQL Notebook](https://www.fastprep.io/system-design/interactive-sql-notebook) | System design | [![Practice][p]](https://www.fastprep.io/system-design/interactive-sql-notebook) | 🔥 Aug 31, 2026 | | **Nubank** | [Design an Online Coding Competition Platform](https://www.fastprep.io/system-design/online-coding-competition-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/online-coding-competition-platform) | 🔥 Aug 31, 2026 | | **Pinterest / OpenAI / Axon** | [Design a Blob Storage Service](https://www.fastprep.io/system-design/blob-storage-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/blob-storage-service) | 🔥 Aug 31, 2026 | | **Anthropic / Snap Inc. / Lyft** | [One-to-One Chat Service](https://www.fastprep.io/system-design/one-to-one-chat-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/one-to-one-chat-service) | 🔥 Aug 31, 2026 | | **Rippling** | [Design a Personalized News Aggregation Platform](https://www.fastprep.io/system-design/personalized-news-aggregation-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/personalized-news-aggregation-platform) | 🔥 Aug 31, 2026 | | **OpenAI** | [Design a Cloud Coding Workspace](https://www.fastprep.io/system-design/cloud-coding-workspace) | System design | [![Practice][p]](https://www.fastprep.io/system-design/cloud-coding-workspace) | 🔥 Aug 31, 2026 | | **Mercor** | [Design a Project-to-Contractor Matching Platform](https://www.fastprep.io/system-design/project-contractor-matching-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/project-contractor-matching-platform) | 🔥 Aug 31, 2026 | | **OpenAI** | [Design a Multi-Channel Bot Notification Service](https://www.fastprep.io/low-level-design/multi-channel-bot-notification-service) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/multi-channel-bot-notification-service) | 🔥 Aug 31, 2026 | | **Visa** | [Collect Branches for a Bird Nest](https://www.fastprep.io/problems/visa-collect-branches-for-nest) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-collect-branches-for-nest) | 🔥 Aug 31, 2026 | | **Visa** | [Count Reverse-Digit Pairs](https://www.fastprep.io/problems/visa-count-reverse-digit-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-count-reverse-digit-pairs) | 🔥 Aug 31, 2026 | | **Akuna Capital** | [Minimum Swaps](https://www.fastprep.io/problems/akuna-minimum-swaps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-minimum-swaps) | 🔥 Aug 31, 2026 | | **Akuna Capital** | [Vowel Substring Game](https://www.fastprep.io/problems/akuna-vowel-substring-game) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-vowel-substring-game) | 🔥 Aug 31, 2026 | | **Akuna Capital** | [Minimum Absolute Difference Pairs](https://www.fastprep.io/problems/akuna-minimum-absolute-difference-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-minimum-absolute-difference-pairs) | 🔥 Aug 31, 2026 | | **Rippling** | [Server Management](https://www.fastprep.io/problems/rippling-server-management) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-server-management) | 🔥 Aug 31, 2026 | | **Rippling** | [Costliest Chocolate](https://www.fastprep.io/problems/rippling-costliest-chocolate) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-costliest-chocolate) | 🔥 Aug 31, 2026 | | **Rippling** | [Consistent Logs](https://www.fastprep.io/problems/rippling-consistent-logs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-consistent-logs) | 🔥 Aug 31, 2026 | | **Salesforce** | [Diameter of an Acyclic Undirected Graph](https://www.fastprep.io/problems/salesforce-tree-diameter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-tree-diameter) | 🔥 Aug 31, 2026 | | **Scale AI** | [Four-Player Trick-Taking Card Game Simulation](https://www.fastprep.io/problems/four-player-trick-taking-card-game-simulation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/four-player-trick-taking-card-game-simulation) | 🔥 Aug 31, 2026 | | **Snowflake** | [Design In-Memory File System](https://www.fastprep.io/problems/snowflake-design-in-memory-file-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-design-in-memory-file-system) | 🔥 Aug 31, 2026 | | **MongoDB** | [Recursive Nested JSON Key Search](https://www.fastprep.io/problems/mongodb-recursive-nested-object-key-search) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mongodb-recursive-nested-object-key-search) | 🔥 Aug 31, 2026 | | **Salesforce** | [Path Sum](https://www.fastprep.io/problems/salesforce-path-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-path-sum) | 🔥 Aug 31, 2026 | | **Uber Freight** | [Maximize Compatible Car Riders](https://www.fastprep.io/problems/uber-freight-maximize-compatible-car-riders) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-freight-maximize-compatible-car-riders) | 🔥 Aug 31, 2026 | | **Google** | [Earliest Time of Full Connection](https://www.fastprep.io/problems/google-earliest-full-connection) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-earliest-full-connection) | 🔥 Aug 31, 2026 | | **Google** | [Parent-Child Deletion Order](https://www.fastprep.io/problems/google-parent-child-deletion-order) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-parent-child-deletion-order) | 🔥 Aug 31, 2026 | | **Lyft** | [Nested Transaction Key-Value Store with Value Counts](https://www.fastprep.io/problems/lyft-nested-transaction-key-value-store) | Coding | [![Practice][p]](https://www.fastprep.io/problems/lyft-nested-transaction-key-value-store) | 🔥 Aug 31, 2026 | | **Lyft** | [Rotten Oranges / Grid Infection BFS](https://www.fastprep.io/problems/lyft-rotten-oranges-grid-bfs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/lyft-rotten-oranges-grid-bfs) | 🔥 Aug 31, 2026 | | **Amazon** | [Find Median from Data Stream](https://www.fastprep.io/problems/amazon-find-median-from-data-stream) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-median-from-data-stream) | 🔥 Aug 31, 2026 | | **Amazon** | [Linked-List Queue with Delete and Deduplication](https://www.fastprep.io/problems/amazon-linked-list-queue-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-linked-list-queue-operations) | 🔥 Aug 31, 2026 | | **Databricks** | [Minimize Commute](https://www.fastprep.io/problems/databricks-minimize-commute) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-minimize-commute) | 🔥 Aug 31, 2026 | | **Google** | [Maximize Two Endpoint Values](https://www.fastprep.io/problems/google-maximize-two-endpoint-values) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-maximize-two-endpoint-values) | 🔥 Aug 31, 2026 | | **OpenAI** | [Poker Deal and Hand-Winner Simulation](https://www.fastprep.io/problems/openai-poker-deal-and-hand-winner) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-poker-deal-and-hand-winner) | 🔥 Aug 31, 2026 | | **Pinterest** | [Expression Add Operators](https://www.fastprep.io/problems/pinterest-expression-add-operators) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-expression-add-operators) | 🔥 Aug 31, 2026 | | **Pinterest** | [Nested JSON Schema Validator](https://www.fastprep.io/problems/pinterest-nested-json-schema-validator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-nested-json-schema-validator) | 🔥 Aug 31, 2026 | | **Hadrian** | [Design a Live Relational Database Migration](https://www.fastprep.io/system-design/live-relational-database-migration) | System design | [![Practice][p]](https://www.fastprep.io/system-design/live-relational-database-migration) | 🔥 Aug 30, 2026 | | **Anthropic** | [Design a Gang-Scheduled GPU Inference Pool](https://www.fastprep.io/system-design/gang-scheduled-gpu-inference-pool) | System design | [![Practice][p]](https://www.fastprep.io/system-design/gang-scheduled-gpu-inference-pool) | 🔥 Aug 30, 2026 | | **Stripe** | [Design an Idempotent Ledger Service](https://www.fastprep.io/system-design/idempotent-ledger-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/idempotent-ledger-service) | 🔥 Aug 30, 2026 | | **OpenAI** | [Design a Device Demand-Response Control System](https://www.fastprep.io/system-design/device-demand-response-control-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/device-demand-response-control-system) | 🔥 Aug 30, 2026 | | **Salesforce / American Express** | [Design a Goal-Driven Tool-Using Agent](https://www.fastprep.io/system-design/goal-driven-tool-using-agent) | System design | [![Practice][p]](https://www.fastprep.io/system-design/goal-driven-tool-using-agent) | 🔥 Aug 30, 2026 | | **ByteDance** | [Design a Top Songs by Country Leaderboard](https://www.fastprep.io/system-design/top-songs-by-country-leaderboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/top-songs-by-country-leaderboard) | 🔥 Aug 30, 2026 | | **Airwallex** | [Design an Asynchronous File Analysis and Reporting System](https://www.fastprep.io/system-design/asynchronous-file-analysis-reporting-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/asynchronous-file-analysis-reporting-system) | 🔥 Aug 30, 2026 | | **Anthropic** | [Design Opaque-GPU Inference Capacity](https://www.fastprep.io/system-design/opaque-gpu-inference-capacity-review) | System design | [![Practice][p]](https://www.fastprep.io/system-design/opaque-gpu-inference-capacity-review) | 🔥 Aug 30, 2026 | | **Verkada** | [Design a Camera Heartbeat Health Dashboard](https://www.fastprep.io/system-design/camera-heartbeat-health-dashboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/camera-heartbeat-health-dashboard) | 🔥 Aug 30, 2026 | | **Verkada** | [Design a Distributed Matrix Transpose Service](https://www.fastprep.io/system-design/distributed-matrix-transpose) | System design | [![Practice][p]](https://www.fastprep.io/system-design/distributed-matrix-transpose) | 🔥 Aug 30, 2026 | | **Matroid** | [Count Good Tuples](https://www.fastprep.io/problems/matroid-count-good-tuples) | Coding | [![Practice][p]](https://www.fastprep.io/problems/matroid-count-good-tuples) | 🔥 Aug 30, 2026 | | **Matroid** | [Validate 3x3 Digit Windows](https://www.fastprep.io/problems/matroid-validate-3x3-digit-windows) | Coding | [![Practice][p]](https://www.fastprep.io/problems/matroid-validate-3x3-digit-windows) | 🔥 Aug 30, 2026 | | **Matroid** | [Diagonal Robot Path Sum](https://www.fastprep.io/problems/matroid-diagonal-robot-path-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/matroid-diagonal-robot-path-sum) | 🔥 Aug 30, 2026 | | **Matroid** | [Count House Segments After Destruction](https://www.fastprep.io/problems/matroid-count-house-segments-after-destruction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/matroid-count-house-segments-after-destruction) | 🔥 Aug 30, 2026 | | **Wolverine Trading** | [Market Share Ticker with Imbalance](https://www.fastprep.io/problems/wolverine-trading-market-share-and-imbalance) | SQL | [![Practice][p]](https://www.fastprep.io/problems/wolverine-trading-market-share-and-imbalance) | 🔥 Aug 30, 2026 | | **Wolverine Trading** | [Hedges Outperforming Their Trades](https://www.fastprep.io/problems/wolverine-trading-hedges-outperforming-trades) | SQL | [![Practice][p]](https://www.fastprep.io/problems/wolverine-trading-hedges-outperforming-trades) | 🔥 Aug 30, 2026 | | **Rippling** | [Stateful Log Transform and Search](https://www.fastprep.io/problems/rippling-stateful-log-transform-and-search) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-stateful-log-transform-and-search) | 🔥 Aug 30, 2026 | | **Hadrian** | [Process Graph Rule Validation](https://www.fastprep.io/problems/hadrian-process-graph-rule-validation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hadrian-process-graph-rule-validation) | 🔥 Aug 30, 2026 | | **DRW** | [Largest Number With Even Digit Frequencies](https://www.fastprep.io/problems/drw-largest-number-even-digit-frequencies) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-largest-number-even-digit-frequencies) | 🔥 Aug 29, 2026 | | **DRW** | [Count Balanced Nodes in a Rooted Tree](https://www.fastprep.io/problems/drw-count-balanced-tree-nodes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-count-balanced-tree-nodes) | 🔥 Aug 29, 2026 | | **DRW** | [Shortest Path Around Rectangular Obstacles](https://www.fastprep.io/problems/drw-shortest-path-rectangular-obstacles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-shortest-path-rectangular-obstacles) | 🔥 Aug 29, 2026 | | **Microsoft** | [Maximum String Operations](https://www.fastprep.io/problems/microsoft-maximum-string-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-string-operations) | 🔥 Aug 29, 2026 | | **Microsoft** | [Authentication System](https://www.fastprep.io/problems/microsoft-authentication-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-authentication-system) | 🔥 Aug 29, 2026 | | **Microsoft** | [Maximum Decrypted Score](https://www.fastprep.io/problems/microsoft-maximum-decrypted-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-decrypted-score) | 🔥 Aug 29, 2026 | | **Microsoft** | [Minimum Team Size From Every Start](https://www.fastprep.io/problems/microsoft-minimum-team-size-from-every-start) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-team-size-from-every-start) | 🔥 Aug 29, 2026 | | **Microsoft** | [K Most Recent Unique Request IDs](https://www.fastprep.io/problems/microsoft-k-most-recent-unique-request-ids) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-k-most-recent-unique-request-ids) | 🔥 Aug 29, 2026 | | **Capital One** | [Product of Digits Minus Sum](https://www.fastprep.io/problems/capital-one-product-minus-sum-of-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-product-minus-sum-of-digits) | 🔥 Aug 29, 2026 | | **Capital One** | [Minimize Expression Value with Parentheses](https://www.fastprep.io/problems/capital-one-minimize-expression-value-with-parentheses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-minimize-expression-value-with-parentheses) | 🔥 Aug 29, 2026 | | **Capital One** | [Leftmost Memory Block Allocator](https://www.fastprep.io/problems/capital-one-leftmost-memory-block-allocator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-leftmost-memory-block-allocator) | 🔥 Aug 29, 2026 | | **Capital One** | [Optimal Lamp Coordinate](https://www.fastprep.io/problems/capital-one-optimal-lamp-coordinate) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-optimal-lamp-coordinate) | 🔥 Aug 29, 2026 | | **Capital One** | [Rank Flights by Airline and Destination Frequency](https://www.fastprep.io/problems/capital-one-rank-flights-by-airline-and-destination) | SQL | [![Practice][p]](https://www.fastprep.io/problems/capital-one-rank-flights-by-airline-and-destination) | 🔥 Aug 29, 2026 | | **Roblox** | [Event ID Check Completion Times](https://www.fastprep.io/problems/roblox-event-id-check-completion-times) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-event-id-check-completion-times) | 🔥 Aug 29, 2026 | | **Roblox** | [Count House Segments After Destruction](https://www.fastprep.io/problems/roblox-count-house-segments-after-destruction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-count-house-segments-after-destruction) | 🔥 Aug 29, 2026 | | **Attentive / Oracle / Amperity** | [Design a Time Series Metrics Database](https://www.fastprep.io/system-design/time-series-metrics-database) | System design | [![Practice][p]](https://www.fastprep.io/system-design/time-series-metrics-database) | 🔥 Aug 29, 2026 | | **Google** | [Design a Massive Geospatial Data Visualization Platform](https://www.fastprep.io/system-design/massive-geospatial-data-visualization) | System design | [![Practice][p]](https://www.fastprep.io/system-design/massive-geospatial-data-visualization) | 🔥 Aug 29, 2026 | | **Google** | [Design an Embeddable Streaming Chat Agent](https://www.fastprep.io/system-design/embeddable-streaming-chat-agent-interface) | System design | [![Practice][p]](https://www.fastprep.io/system-design/embeddable-streaming-chat-agent-interface) | 🔥 Aug 29, 2026 | | **OpenAI** | [Power Plant Operations Platform](https://www.fastprep.io/system-design/power-plant-operations-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/power-plant-operations-platform) | 🔥 Aug 29, 2026 | | **IBM** | [Plus Mult Array](https://www.fastprep.io/problems/ibm-plus-mult-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-plus-mult-array) | 🔥 Aug 29, 2026 | | **IBM** | [Get Maximum Amount](https://www.fastprep.io/problems/ibm-get-maximum-amount) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-maximum-amount) | 🔥 Aug 29, 2026 | | **Uber** | [Design and Implement Ride Dispatch and Trip Lifecycle](https://www.fastprep.io/low-level-design/ride-hailing-dispatch-and-trip-lifecycle) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/ride-hailing-dispatch-and-trip-lifecycle) | 🔥 Aug 29, 2026 | | **ClearTax** | [Design a Railway Search and Booking Platform](https://www.fastprep.io/system-design/railway-search-and-booking-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/railway-search-and-booking-platform) | 🔥 Aug 29, 2026 | | **ClearTax** | [Design a Movie Ticket Booking System](https://www.fastprep.io/low-level-design/movie-ticket-booking-system) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/movie-ticket-booking-system) | 🔥 Aug 29, 2026 | | **Goldman Sachs** | [Palindrome Counter](https://www.fastprep.io/problems/count-palindromes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/count-palindromes) | 🔥 Aug 29, 2026 | | **Amazon / Omnissa** | [Design an Extensible Multi-Channel Alerting Platform](https://www.fastprep.io/low-level-design/extensible-multi-channel-alerting-platform) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/extensible-multi-channel-alerting-platform) | 🔥 Aug 28, 2026 | | **Snowflake / Amperity / Fivetran** | [Design a Unified SaaS Analytics Platform](https://www.fastprep.io/system-design/unified-saas-analytics-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/unified-saas-analytics-platform) | 🔥 Aug 28, 2026 | | **Nvidia** | [Autonomous-Driving Camera Perception Pipeline](https://www.fastprep.io/system-design/autonomous-driving-camera-perception-pipeline) | System design | [![Practice][p]](https://www.fastprep.io/system-design/autonomous-driving-camera-perception-pipeline) | 🔥 Aug 28, 2026 | | **Agoda** | [Design a Flight Search and Booking Aggregator](https://www.fastprep.io/system-design/flight-search-booking-aggregation-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/flight-search-booking-aggregation-platform) | 🔥 Aug 28, 2026 | | **Oracle** | [Design a Software Load Balancer](https://www.fastprep.io/system-design/software-load-balancer) | System design | [![Practice][p]](https://www.fastprep.io/system-design/software-load-balancer) | 🔥 Aug 28, 2026 | | **Amazon / Tesla** | [Design a Video Storage and Streaming Platform](https://www.fastprep.io/system-design/video-storage-streaming-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/video-storage-streaming-platform) | 🔥 Aug 28, 2026 | | **Tesla** | [Design an E-commerce Order Fulfillment System](https://www.fastprep.io/system-design/amazon-order-fulfillment-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/amazon-order-fulfillment-system) | 🔥 Aug 28, 2026 | | **Oracle** | [Design and Implement an Active-Passive Key-Value Store](https://www.fastprep.io/low-level-design/active-passive-key-value-store) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/active-passive-key-value-store) | 🔥 Aug 28, 2026 | | **Amazon** | [Minimum Grid Inconvenience](https://www.fastprep.io/problems/amazon-minimum-grid-inconvenience) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-grid-inconvenience) | 🔥 Aug 28, 2026 | | **Indeed** | [Redesign a Production Spam Classifier](https://www.fastprep.io/system-design/production-spam-classifier-redesign) | System design | [![Practice][p]](https://www.fastprep.io/system-design/production-spam-classifier-redesign) | 🔥 Aug 28, 2026 | | **IMC** | [Grid Paths with Override Passes](https://www.fastprep.io/problems/imc-grid-paths-with-override-passes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-grid-paths-with-override-passes) | 🔥 Aug 28, 2026 | | **Walmart** | [Minimum Stress Path](https://www.fastprep.io/problems/walmart-minimum-stress-path) | Coding | [![Practice][p]](https://www.fastprep.io/problems/walmart-minimum-stress-path) | 🔥 Aug 27, 2026 | | **Amazon** | [Minimum Merge Conflicts](https://www.fastprep.io/problems/amazon-minimum-merge-conflicts) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-merge-conflicts) | 🔥 Aug 27, 2026 | | **Amazon** | [Calculate Beauty Values](https://www.fastprep.io/problems/amazon-calculate-beauty-values) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-calculate-beauty-values) | 🔥 Aug 27, 2026 | | **Microsoft** | [Roll the String](https://www.fastprep.io/problems/microsoft-roll-the-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-roll-the-string) | 🔥 Aug 27, 2026 | | **Microsoft** | [Minimum Length Good Subarray](https://www.fastprep.io/problems/microsoft-minimum-length-good-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-length-good-subarray) | 🔥 Aug 27, 2026 | | **Amazon** | [Repair Workflow Issue and Sub-Issue Creation](https://www.fastprep.io/project-coding/amazon-repair-workflow-issues) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/amazon-repair-workflow-issues) | 🔥 Aug 27, 2026 | | **Amazon / Postman / Mintlify / Walmart** | [Design a Collaborative Document Editor](https://www.fastprep.io/system-design/collaborative-document-editor) | System design | [![Practice][p]](https://www.fastprep.io/system-design/collaborative-document-editor) | 🔥 Aug 27, 2026 | | **LinkedIn** | [Design a Job Listing Freshness Platform](https://www.fastprep.io/system-design/job-listing-freshness-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/job-listing-freshness-platform) | 🔥 Aug 27, 2026 | | **OpenAI** | [Digital Game Distribution Platform](https://www.fastprep.io/system-design/digital-game-distribution-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/digital-game-distribution-platform) | 🔥 Aug 27, 2026 | | **LinkedIn** | [Malicious IP Traffic Filtering Platform](https://www.fastprep.io/system-design/malicious-ip-traffic-filtering-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/malicious-ip-traffic-filtering-platform) | 🔥 Aug 27, 2026 | | **Amazon** | [Repair Event Listing Filters, Pagination, and Caching](https://www.fastprep.io/project-coding/amazon-repair-event-listing-cache) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/amazon-repair-event-listing-cache) | 🔥 Aug 27, 2026 | | **Amazon** | [Repair MovieDB Search and Recommendations](https://www.fastprep.io/project-coding/amazon-repair-moviedb-recommendations) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/amazon-repair-moviedb-recommendations) | 🔥 Aug 26, 2026 | | **Maven Securities** | [Prime Factor Visitation](https://www.fastprep.io/problems/maven-securities-prime-factor-visitation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/maven-securities-prime-factor-visitation) | 🔥 Aug 26, 2026 | | **Maven Securities** | [Resource Allocation](https://www.fastprep.io/problems/maven-securities-resource-allocation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/maven-securities-resource-allocation) | 🔥 Aug 26, 2026 | | **TikTok** | [Event ID Check Completion Times](https://www.fastprep.io/problems/tiktok-event-id-check-completion-times) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-event-id-check-completion-times) | 🔥 Aug 26, 2026 | | **TikTok** | [Leftmost Memory Block Allocator (for mle also :)](https://www.fastprep.io/problems/tiktok-leftmost-memory-block-allocator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-leftmost-memory-block-allocator) | 🔥 Aug 26, 2026 | | **TikTok** | [Find Sum Pairs (for mle also :)](https://www.fastprep.io/problems/tiktok-find-sum-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-sum-pairs) | 🔥 Aug 26, 2026 | | **TikTok** | [Reverse Letters in Pairs](https://www.fastprep.io/problems/tiktok-reverse-letters-in-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-reverse-letters-in-pairs) | 🔥 Aug 26, 2026 | | **Amazon** | [Unfulfilled Customers by Inventory Priority](https://www.fastprep.io/problems/1.amazon-unfulfilled-customers-by-inventory-priority) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-unfulfilled-customers-by-inventory-priority) | 🔥 Aug 26, 2026 | | **Superhuman / Grammarly** | [Design an Ephemeral Messaging Service](https://www.fastprep.io/system-design/ephemeral-message-delivery) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ephemeral-message-delivery) | 🔥 Aug 26, 2026 | | **ByteDance** | [Match Consecutive Word Boundaries (for mle also :)](https://www.fastprep.io/problems/bytedance-match-consecutive-word-boundaries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-match-consecutive-word-boundaries) | 🔥 Aug 25, 2026 | | **ByteDance** | [Minimize Expression Value with Parentheses (for mle also :)](https://www.fastprep.io/problems/bytedance-minimize-expression-value-with-parentheses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-minimize-expression-value-with-parentheses) | 🔥 Aug 25, 2026 | | **ByteDance** | [Leftmost Memory Block Allocator (for mle also :)](https://www.fastprep.io/problems/bytedance-leftmost-memory-block-allocator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-leftmost-memory-block-allocator) | 🔥 Aug 25, 2026 | | **ByteDance** | [Find Sum Pairs (for mle also :)](https://www.fastprep.io/problems/bytedance-find-sum-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-find-sum-pairs) | 🔥 Aug 25, 2026 | | **TikTok** | [Sort Matrix Borders](https://www.fastprep.io/problems/tiktok-sort-matrix-borders) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-sort-matrix-borders) | 🔥 Aug 25, 2026 | | **TikTok** | [Count Even-Digit Numbers](https://www.fastprep.io/problems/tiktok-count-even-digit-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-even-digit-numbers) | 🔥 Aug 25, 2026 | | **Netflix / Oracle / Google / Meta / ByteDance** | [Design a Personalized Recommendation System](https://www.fastprep.io/system-design/personalized-recommendation-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/personalized-recommendation-system) | 🔥 Aug 25, 2026 | | **OpenAI** | [Design an Online Chess Platform](https://www.fastprep.io/system-design/online-chess-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/online-chess-platform) | 🔥 Aug 25, 2026 | | **Netflix / Google** | [Design a Grounded Recommendation Chatbot](https://www.fastprep.io/system-design/grounded-recommendation-chatbot) | System design | [![Practice][p]](https://www.fastprep.io/system-design/grounded-recommendation-chatbot) | 🔥 Aug 25, 2026 | | **Rippling / Apple / Oracle** | [Design a Centralized Log Ingestion and Search Platform](https://www.fastprep.io/system-design/centralized-log-ingestion-and-search) | System design | [![Practice][p]](https://www.fastprep.io/system-design/centralized-log-ingestion-and-search) | 🔥 Aug 25, 2026 | | **Atlassian** | [Audit a Service Architecture for Reliability](https://www.fastprep.io/system-design/architecture-observability-reliability-audit) | System design | [![Practice][p]](https://www.fastprep.io/system-design/architecture-observability-reliability-audit) | 🔥 Aug 25, 2026 | | **Tekion** | [Design a Continuous Table Merge into NoSQL](https://www.fastprep.io/system-design/continuous-table-merge-to-nosql) | System design | [![Practice][p]](https://www.fastprep.io/system-design/continuous-table-merge-to-nosql) | 🔥 Aug 25, 2026 | | **LinkedIn** | [Design a High-Throughput Single-Node Key-Value Store](https://www.fastprep.io/system-design/high-throughput-single-node-key-value-store) | System design | [![Practice][p]](https://www.fastprep.io/system-design/high-throughput-single-node-key-value-store) | 🔥 Aug 25, 2026 | | **Apple** | [Design a Multi-Version Configuration Service](https://www.fastprep.io/system-design/multi-version-configuration-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multi-version-configuration-service) | 🔥 Aug 25, 2026 | | **Tekion** | [Design a Resilient Multi-Table ETL Pipeline](https://www.fastprep.io/system-design/resilient-multitable-etl-reconciliation) | System design | [![Practice][p]](https://www.fastprep.io/system-design/resilient-multitable-etl-reconciliation) | 🔥 Aug 25, 2026 | | **Microsoft** | [Design a Ticket Context and System Status Platform](https://www.fastprep.io/system-design/ticket-context-system-status-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ticket-context-system-status-platform) | 🔥 Aug 25, 2026 | | **Citadel / ByteDance / Microsoft** | [Design an Authenticated Shopping Platform](https://www.fastprep.io/system-design/authenticated-shopping-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/authenticated-shopping-platform) | 🔥 Aug 25, 2026 | | **Waymo** | [Design an Autonomous-Vehicle Cloud Command System](https://www.fastprep.io/system-design/autonomous-vehicle-cloud-command-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/autonomous-vehicle-cloud-command-system) | 🔥 Aug 25, 2026 | | **Harvey** | [Design Human-Governed File Review Agents](https://www.fastprep.io/system-design/human-governed-file-review-agents) | System design | [![Practice][p]](https://www.fastprep.io/system-design/human-governed-file-review-agents) | 🔥 Aug 25, 2026 | | **JPMorgan Chase / Google** | [Internal AI Assistant for Employees](https://www.fastprep.io/system-design/internal-ai-assistant-for-employees) | System design | [![Practice][p]](https://www.fastprep.io/system-design/internal-ai-assistant-for-employees) | 🔥 Aug 25, 2026 | | **Goldman Sachs** | [Repair Event Pre-Save Validation](https://www.fastprep.io/project-coding/goldman-sachs-event-presave-validation) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/goldman-sachs-event-presave-validation) | 🔥 Aug 25, 2026 | | **IBM** | [Expiring Authentication Token Manager](https://www.fastprep.io/problems/ibm-expiring-authentication-token-manager) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-expiring-authentication-token-manager) | 🔥 Aug 24, 2026 | | **Goldman Sachs** | [Maximum Ones After K Operations](https://www.fastprep.io/problems/goldman-sachs-maximum-ones-after-k-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-maximum-ones-after-k-operations) | 🔥 Aug 24, 2026 | | **Microsoft** | [Maximum Products by Budget](https://www.fastprep.io/problems/1.microsoft-maximum-products-by-budget) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.microsoft-maximum-products-by-budget) | 🔥 Aug 24, 2026 | | **TikTok** | [Repeated Grouped Digit Sum](https://www.fastprep.io/problems/tiktok-repeated-grouped-digit-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-repeated-grouped-digit-sum) | 🔥 Aug 24, 2026 | | **infosys / Waymo / Goldman Sachs** | [Design Ride-Hailing Dispatch and Trip Lifecycle](https://www.fastprep.io/system-design/regional-ride-hailing-dispatch-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/regional-ride-hailing-dispatch-system) | 🔥 Aug 24, 2026 | | **Amazon** | [Design a Marketplace Product Search Service](https://www.fastprep.io/system-design/marketplace-product-search-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/marketplace-product-search-service) | 🔥 Aug 24, 2026 | | **JPMorgan Chase** | [Design a Multimodal RAG Retrieval Platform](https://www.fastprep.io/system-design/multimodal-rag-retrieval-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multimodal-rag-retrieval-platform) | 🔥 Aug 24, 2026 | | **JPMorgan Chase** | [Design a Region-Aware User Record Store](https://www.fastprep.io/system-design/region-aware-user-record-store) | System design | [![Practice][p]](https://www.fastprep.io/system-design/region-aware-user-record-store) | 🔥 Aug 24, 2026 | | **JPMorgan Chase** | [Design a Reliable Endpoint File Transfer Service](https://www.fastprep.io/system-design/reliable-endpoint-file-transfer) | System design | [![Practice][p]](https://www.fastprep.io/system-design/reliable-endpoint-file-transfer) | 🔥 Aug 24, 2026 | | **JPMorgan Chase** | [Design a Role-Based Token Authorization Platform](https://www.fastprep.io/system-design/role-based-token-authorization-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/role-based-token-authorization-platform) | 🔥 Aug 24, 2026 | | **Amazon** | [Design a Seller Product-Image Upload Service](https://www.fastprep.io/system-design/seller-product-image-upload-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/seller-product-image-upload-service) | 🔥 Aug 24, 2026 | | **LinkedIn** | [Design an Ads Bidding, Pacing, and Forecast Platform](https://www.fastprep.io/system-design/ads-bidding-pacing-forecast-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ads-bidding-pacing-forecast-platform) | 🔥 Aug 24, 2026 | | **Visa** | [Design an E-Commerce Top-Spender Query](https://www.fastprep.io/system-design/ecommerce-top-spender-query-design) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ecommerce-top-spender-query-design) | 🔥 Aug 24, 2026 | | **Amazon** | [Design an Online Coding Practice Platform](https://www.fastprep.io/system-design/online-coding-practice-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/online-coding-practice-platform) | 🔥 Aug 24, 2026 | | **Salesforce** | [Design an Elevator Control System](https://www.fastprep.io/low-level-design/elevator-dispatch-control-domain) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/elevator-dispatch-control-domain) | 🔥 Aug 24, 2026 | | **Goldman Sachs** | [Repair the Held-Ticket Confirmation Lifecycle](https://www.fastprep.io/project-coding/goldman-sachs-held-ticket-confirmation) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/goldman-sachs-held-ticket-confirmation) | 🔥 Aug 24, 2026 | | **Airbnb** | [Progressive Banking System](https://www.fastprep.io/problems/airbnb-progressive-banking-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-progressive-banking-system) | 🔥 Aug 23, 2026 | | **Citadel** | [Maximize Workday Earnings](https://www.fastprep.io/problems/citadel-maximize-workday-earnings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-maximize-workday-earnings) | 🔥 Aug 23, 2026 | | **Citadel** | [Minimum Changes for Palindromic Blocks](https://www.fastprep.io/problems/citadel-minimum-changes-palindromic-blocks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-minimum-changes-palindromic-blocks) | 🔥 Aug 23, 2026 | | **Google** | [Assign Locker](https://www.fastprep.io/problems/google-assign-locker) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-assign-locker) | 🔥 Aug 23, 2026 | | **Microsoft** | [Minimum Fuel Cost Between Cities](https://www.fastprep.io/problems/microsoft-minimum-fuel-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-fuel-cost) | 🔥 Aug 23, 2026 | | **Amazon / Goldman Sachs / Salesforce** | [Design an In-Memory Job Scheduler](https://www.fastprep.io/low-level-design/in-memory-job-scheduler) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/in-memory-job-scheduler) | 🔥 Aug 23, 2026 | | **Oracle / Retell AI / Apple / Google / Walmart / Flipkart** | [Design a Distributed Rate Limiter](https://www.fastprep.io/system-design/distributed-rate-limiter) | System design | [![Practice][p]](https://www.fastprep.io/system-design/distributed-rate-limiter) | 🔥 Aug 23, 2026 | | **Mercor / Salesforce** | [Design a Durable Work Orchestration Platform](https://www.fastprep.io/system-design/durable-work-orchestration-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/durable-work-orchestration-platform) | 🔥 Aug 23, 2026 | | **Microsoft** | [Design a Multi-Tenant One-Time Password Service](https://www.fastprep.io/system-design/multitenant-one-time-password-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multitenant-one-time-password-service) | 🔥 Aug 23, 2026 | | **Salesforce** | [Design a Real-Time Direct Messaging System](https://www.fastprep.io/system-design/real-time-direct-messaging-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/real-time-direct-messaging-system) | 🔥 Aug 23, 2026 | | **Oracle** | [Design a Rolling Top Error-Services Monitor](https://www.fastprep.io/system-design/rolling-top-error-services) | System design | [![Practice][p]](https://www.fastprep.io/system-design/rolling-top-error-services) | 🔥 Aug 23, 2026 | | **Oracle** | [Design a Rolling Top-Users Event Leaderboard](https://www.fastprep.io/system-design/rolling-top-users-event-window) | System design | [![Practice][p]](https://www.fastprep.io/system-design/rolling-top-users-event-window) | 🔥 Aug 23, 2026 | | **Oracle** | [Design a Scheduled Fan-Out Delivery Platform](https://www.fastprep.io/system-design/scheduled-fanout-message-delivery) | System design | [![Practice][p]](https://www.fastprep.io/system-design/scheduled-fanout-message-delivery) | 🔥 Aug 23, 2026 | | **Microsoft** | [Design a Web Crawler and Inverted Index](https://www.fastprep.io/system-design/web-crawler-inverted-search-index) | System design | [![Practice][p]](https://www.fastprep.io/system-design/web-crawler-inverted-search-index) | 🔥 Aug 23, 2026 | | **Walmart / CrowdStrike** | [Design Multi-Cloud Blob Malware Scanning](https://www.fastprep.io/system-design/multicloud-blob-malware-scanning) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multicloud-blob-malware-scanning) | 🔥 Aug 23, 2026 | | **Salesforce** | [Design a Connect Four Game](https://www.fastprep.io/low-level-design/connect-four-game-domain) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/connect-four-game-domain) | 🔥 Aug 23, 2026 | | **Walmart** | [Design a Job Marketplace Domain](https://www.fastprep.io/low-level-design/job-marketplace-person-job-domain) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/job-marketplace-person-job-domain) | 🔥 Aug 23, 2026 | | **Tekion** | [Design a Workflow Orchestrator Domain](https://www.fastprep.io/low-level-design/workflow-orchestration-domain) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/workflow-orchestration-domain) | 🔥 Aug 23, 2026 | | **Barclays** | [Allocate Workers for a Production Ratio](https://www.fastprep.io/problems/barclays-production-ratio-worker-allocation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/barclays-production-ratio-worker-allocation) | 🔥 Aug 22, 2026 | | **Anthropic** | [Cloud Storage System](https://www.fastprep.io/problems/anthropic-cloud-storage-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-cloud-storage-system) | 🔥 Aug 22, 2026 | | **Zscaler / Amazon / Walmart / Stripe** | [Design a Global Service Metrics Monitoring and Alerting Platform](https://www.fastprep.io/system-design/global-service-metrics-monitoring-and-alerting) | System design | [![Practice][p]](https://www.fastprep.io/system-design/global-service-metrics-monitoring-and-alerting) | 🔥 Aug 22, 2026 | | **Uber** | [Design a Price Movement Alert Platform](https://www.fastprep.io/system-design/price-movement-alert-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/price-movement-alert-platform) | 🔥 Aug 22, 2026 | | **Citadel / Goldman Sachs** | [Design a Course Registration Platform](https://www.fastprep.io/system-design/course-registration-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/course-registration-platform) | 🔥 Aug 22, 2026 | | **LinkedIn** | [Design a Rolling Shared-Article Leaderboard](https://www.fastprep.io/system-design/rolling-shared-article-leaderboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/rolling-shared-article-leaderboard) | 🔥 Aug 22, 2026 | | **Google** | [Directed Graph Reachability Queries](https://www.fastprep.io/problems/google-directed-graph-reachability-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-directed-graph-reachability-queries) | 🔥 Aug 21, 2026 | | **Pinterest** | [Phone Spam Report Counter](https://www.fastprep.io/problems/pinterest-phone-spam-report-counter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-phone-spam-report-counter) | 🔥 Aug 21, 2026 | | **Pinterest** | [Minimize the Longest Hike Between Rest Stops](https://www.fastprep.io/problems/pinterest-minimize-longest-hike-between-rest-stops) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-minimize-longest-hike-between-rest-stops) | 🔥 Aug 21, 2026 | | **Netflix** | [Undo and Redo Command History](https://www.fastprep.io/problems/netflix-undo-redo-command-history) | Coding | [![Practice][p]](https://www.fastprep.io/problems/netflix-undo-redo-command-history) | 🔥 Aug 21, 2026 | | **Pinterest** | [Count Ordered Combination Sums with Negative Values](https://www.fastprep.io/problems/pinterest-count-ordered-combination-sums-with-negative-values) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-count-ordered-combination-sums-with-negative-values) | 🔥 Aug 21, 2026 | | **Pinterest** | [Count Ordered Combination Sums](https://www.fastprep.io/problems/pinterest-count-ordered-combination-sums) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-count-ordered-combination-sums) | 🔥 Aug 21, 2026 | | **Pinterest** | [Fixed-Length Combination Sum](https://www.fastprep.io/problems/pinterest-fixed-length-combination-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-fixed-length-combination-sum) | 🔥 Aug 21, 2026 | | **Pinterest** | [Combination Sum with Single-Use Values](https://www.fastprep.io/problems/pinterest-combination-sum-with-single-use) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-combination-sum-with-single-use) | 🔥 Aug 21, 2026 | | **Pinterest** | [Combination Sum with Reusable Values](https://www.fastprep.io/problems/pinterest-combination-sum-with-reuse) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-combination-sum-with-reuse) | 🔥 Aug 21, 2026 | | **Affirm** | [Assign Sequential Loan Identifiers](https://www.fastprep.io/problems/affirm-assign-sequential-loan-identifiers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/affirm-assign-sequential-loan-identifiers) | 🔥 Aug 21, 2026 | | **Affirm** | [Normalize Loan Merchants to Root Businesses](https://www.fastprep.io/problems/affirm-normalize-loan-merchants-to-root-business) | Coding | [![Practice][p]](https://www.fastprep.io/problems/affirm-normalize-loan-merchants-to-root-business) | 🔥 Aug 21, 2026 | | **Apple** | [Design Hash Map](https://www.fastprep.io/problems/apple-design-hashmap) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-design-hashmap) | 🔥 Aug 21, 2026 | | **Rippling** | [Delivery Cost Tracker with Effective-Dated Rates](https://www.fastprep.io/problems/rippling-delivery-cost-tracker-with-rate-history) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-delivery-cost-tracker-with-rate-history) | 🔥 Aug 21, 2026 | | **ByteDance** | [Search in a Rotated Sorted Array with Duplicates](https://www.fastprep.io/problems/bytedance-search-in-rotated-sorted-array-with-duplicates) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-search-in-rotated-sorted-array-with-duplicates) | 🔥 Aug 21, 2026 | | **OpenAI** | [One-Nearest-Neighbor Classification](https://www.fastprep.io/problems/openai-one-nearest-neighbor-classification) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-one-nearest-neighbor-classification) | 🔥 Aug 21, 2026 | | **OpenAI** | [Plant Infection Simulation, Part 4: Death Countdown](https://www.fastprep.io/problems/openai-infection-simulation-part-4) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-infection-simulation-part-4) | 🔥 Aug 21, 2026 | | **Illumio** | [Least Recently Used Cache](https://www.fastprep.io/problems/illumio-least-recently-used-cache) | Coding | [![Practice][p]](https://www.fastprep.io/problems/illumio-least-recently-used-cache) | 🔥 Aug 21, 2026 | | **Cursor** | [Filesystem Hash Tree](https://www.fastprep.io/problems/cursor-filesystem-hash-tree) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cursor-filesystem-hash-tree) | 🔥 Aug 21, 2026 | | **Google** | [Minimum Racks for Server Resources](https://www.fastprep.io/problems/google-minimum-racks-for-server-resources) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimum-racks-for-server-resources) | 🔥 Aug 21, 2026 | | **Meta** | [First Common Ancestor with Parent Pointers](https://www.fastprep.io/problems/meta-first-common-ancestor-with-parent-pointers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-first-common-ancestor-with-parent-pointers) | 🔥 Aug 21, 2026 | | **Meta** | [Minimum Removal for Balanced Parentheses](https://www.fastprep.io/problems/meta-minimum-removal-for-balanced-parentheses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-minimum-removal-for-balanced-parentheses) | 🔥 Aug 21, 2026 | | **Google** | [Count Prefix Paths in a Character Graph](https://www.fastprep.io/problems/google-count-prefix-paths-in-character-graph) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-count-prefix-paths-in-character-graph) | 🔥 Aug 21, 2026 | | **Airbnb** | [Cloud Storage with User Backup and Restore](https://www.fastprep.io/problems/airbnb-cloud-storage-backup-and-restore) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-cloud-storage-backup-and-restore) | 🔥 Aug 21, 2026 | | **Anthropic** | [Task Management System](https://www.fastprep.io/problems/anthropic-task-management-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-task-management-system) | 🔥 Aug 21, 2026 | | **General Motors** | [Per-Client Sliding-Window Rate Limiter](https://www.fastprep.io/problems/general-motors-per-client-sliding-window-rate-limiter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/general-motors-per-client-sliding-window-rate-limiter) | 🔥 Aug 21, 2026 | | **Netflix** | [Timed Cache with Sidecar Cleanup](https://www.fastprep.io/problems/netflix-timed-cache-with-sidecar-cleanup) | Coding | [![Practice][p]](https://www.fastprep.io/problems/netflix-timed-cache-with-sidecar-cleanup) | 🔥 Aug 21, 2026 | | **ByteDance** | [Count Numbers with an Even Digit Count](https://www.fastprep.io/problems/bytedance-count-even-digit-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-count-even-digit-numbers) | 🔥 Aug 21, 2026 | | **ByteDance** | [Sorted Absolute-Difference Sums Across Cyclic Shifts](https://www.fastprep.io/problems/bytedance-cyclic-shift-absolute-difference-sums) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-cyclic-shift-absolute-difference-sums) | 🔥 Aug 21, 2026 | | **ByteDance** | [Sort Concentric Matrix Borders Clockwise](https://www.fastprep.io/problems/bytedance-sort-matrix-borders) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-sort-matrix-borders) | 🔥 Aug 21, 2026 | | **ByteDance** | [Count House Segments After Sequential Destruction](https://www.fastprep.io/problems/bytedance-count-house-segments-after-destruction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-count-house-segments-after-destruction) | 🔥 Aug 21, 2026 | | **Quince** | [Minimum Sprinklers to Cover an Interval](https://www.fastprep.io/problems/quince-minimum-sprinklers-to-cover-an-interval) | Coding | [![Practice][p]](https://www.fastprep.io/problems/quince-minimum-sprinklers-to-cover-an-interval) | 🔥 Aug 21, 2026 | | **Quince** | [Check a Repeated String as a Subsequence](https://www.fastprep.io/problems/quince-check-a-repeated-string-as-a-subsequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/quince-check-a-repeated-string-as-a-subsequence) | 🔥 Aug 21, 2026 | | **Temu** | [Merge Two Sorted Collections Without Duplicates](https://www.fastprep.io/problems/temu-merge-two-sorted-collections-without-duplicates) | Coding | [![Practice][p]](https://www.fastprep.io/problems/temu-merge-two-sorted-collections-without-duplicates) | 🔥 Aug 21, 2026 | | **Amazon / Lyft / Google / Pinterest** | [Design a Web Crawler](https://www.fastprep.io/system-design/web-crawler) | System design | [![Practice][p]](https://www.fastprep.io/system-design/web-crawler) | 🔥 Aug 21, 2026 | | **Anthropic** | [Design a Model-Weight Deployment Platform](https://www.fastprep.io/system-design/model-weight-deployment-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/model-weight-deployment-platform) | 🔥 Aug 21, 2026 | | **ByteDance** | [Cache Avalanche Resilience](https://www.fastprep.io/system-design/cache-avalanche-resilience) | System design | [![Practice][p]](https://www.fastprep.io/system-design/cache-avalanche-resilience) | 🔥 Aug 21, 2026 | | **ByteDance** | [Cache-Aside Consistency Recovery](https://www.fastprep.io/system-design/cache-aside-consistency-recovery) | System design | [![Practice][p]](https://www.fastprep.io/system-design/cache-aside-consistency-recovery) | 🔥 Aug 21, 2026 | | **Netflix** | [Design a Competitive Ad Exclusion Service](https://www.fastprep.io/system-design/competitive-ad-exclusion-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/competitive-ad-exclusion-service) | 🔥 Aug 21, 2026 | | **General Motors** | [Design a Composable AI Function Platform](https://www.fastprep.io/system-design/composable-ai-function-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/composable-ai-function-platform) | 🔥 Aug 21, 2026 | | **Cursor** | [Hash-Tree Client/Server Synchronization](https://www.fastprep.io/system-design/hash-tree-client-server-synchronization) | System design | [![Practice][p]](https://www.fastprep.io/system-design/hash-tree-client-server-synchronization) | 🔥 Aug 21, 2026 | | **ByteDance** | [Relational Query Index Design](https://www.fastprep.io/system-design/relational-query-index-design) | System design | [![Practice][p]](https://www.fastprep.io/system-design/relational-query-index-design) | 🔥 Aug 21, 2026 | | **ByteDance** | [SQL Index Eligibility Analysis](https://www.fastprep.io/system-design/sql-index-eligibility-analysis) | System design | [![Practice][p]](https://www.fastprep.io/system-design/sql-index-eligibility-analysis) | 🔥 Aug 21, 2026 | | **Netflix** | [Design a Parking Lot with Flexible Fees](https://www.fastprep.io/low-level-design/parking-lot-with-flexible-fees) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/parking-lot-with-flexible-fees) | 🔥 Aug 21, 2026 | | **IBM** | [Drawing Edge](https://www.fastprep.io/problems/ibm-drawing-edge) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-drawing-edge) | 🔥 Aug 20, 2026 | | **IBM** | [Increasing-Value Triplets Under a Threshold](https://www.fastprep.io/problems/ibm-increasing-value-triplets-under-threshold) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-increasing-value-triplets-under-threshold) | 🔥 Aug 20, 2026 | | **Meta** | [Maximum Unique-Character Word Subset](https://www.fastprep.io/problems/meta-maximum-unique-character-word-subset) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-maximum-unique-character-word-subset) | 🔥 Aug 20, 2026 | | **Meta** | [Validate a Palindrome After Limited Deletions](https://www.fastprep.io/problems/meta-palindrome-k-deletions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-palindrome-k-deletions) | 🔥 Aug 20, 2026 | | **Meta** | [Minimum-Sum Root-to-Leaf Path](https://www.fastprep.io/problems/meta-minimum-sum-root-to-leaf-path) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-minimum-sum-root-to-leaf-path) | 🔥 Aug 20, 2026 | | **Nuro** | [Schedule Buffered Video Playback](https://www.fastprep.io/problems/nuro-schedule-buffered-video-playback) | Coding | [![Practice][p]](https://www.fastprep.io/problems/nuro-schedule-buffered-video-playback) | 🔥 Aug 20, 2026 | | **Nuro** | [Reveal a Minesweeper Region](https://www.fastprep.io/problems/nuro-reveal-minesweeper-region) | Coding | [![Practice][p]](https://www.fastprep.io/problems/nuro-reveal-minesweeper-region) | 🔥 Aug 20, 2026 | | **Meta** | [Design a Boolean Status Search Index](https://www.fastprep.io/system-design/boolean-status-search-index) | System design | [![Practice][p]](https://www.fastprep.io/system-design/boolean-status-search-index) | 🔥 Aug 20, 2026 | | **OpenAI** | [Design a Distributed Video Generation Platform](https://www.fastprep.io/system-design/distributed-video-generation-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/distributed-video-generation-platform) | 🔥 Aug 19, 2026 | | **DoorDash / Robinhood / Snowflake / Postman / Figma / LinkedIn / Airbnb / Nextdoor** | [Design a Scheduled Job Execution System](https://www.fastprep.io/system-design/scheduled-job-execution-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/scheduled-job-execution-system) | 🔥 Aug 19, 2026 | | **OpenAI** | [Payment Hold, Charge, and Settlement](https://www.fastprep.io/system-design/payment-hold-charge-settlement) | System design | [![Practice][p]](https://www.fastprep.io/system-design/payment-hold-charge-settlement) | 🔥 Aug 19, 2026 | | **Oracle** | [Design a Healthcare Data Ingestion Pipeline](https://www.fastprep.io/system-design/healthcare-data-ingestion-pipeline) | System design | [![Practice][p]](https://www.fastprep.io/system-design/healthcare-data-ingestion-pipeline) | 🔥 Aug 19, 2026 | | **eBay** | [Design a Top-Selling Items and Categories Dashboard](https://www.fastprep.io/system-design/top-selling-items-and-categories-dashboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/top-selling-items-and-categories-dashboard) | 🔥 Aug 19, 2026 | | **eBay** | [Design a Workplace Lunch Ordering Platform](https://www.fastprep.io/system-design/workplace-lunch-ordering-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/workplace-lunch-ordering-platform) | 🔥 Aug 19, 2026 | | **Micro1** | [Design an In-Memory Action Rate Limiter](https://www.fastprep.io/low-level-design/in-memory-action-rate-limiter) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/in-memory-action-rate-limiter) | 🔥 Aug 19, 2026 | | **Micro1** | [Design an In-Memory Read-Through Cache](https://www.fastprep.io/low-level-design/in-memory-read-through-cache) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/in-memory-read-through-cache) | 🔥 Aug 19, 2026 | | **Meta** | [Build an In-Memory Cloud Storage System](https://www.fastprep.io/project-coding/meta-in-memory-cloud-storage) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/meta-in-memory-cloud-storage) | 🔥 Aug 19, 2026 | | **IBM** | [Count Invalid Log Groups](https://www.fastprep.io/problems/ibm-count-invalid-log-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-invalid-log-groups) | 🆕 Aug 18, 2026 | | **IBM** | [Count Paginated Medical Records in a Range](https://www.fastprep.io/problems/ibm-count-paginated-medical-records-in-range) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-paginated-medical-records-in-range) | 🆕 Aug 18, 2026 | | **Amazon** | [Design a Playlist Source Mixer](https://www.fastprep.io/low-level-design/playlist-source-mixer) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/playlist-source-mixer) | 🆕 Aug 18, 2026 | | **OpenAI / Baseten / Amazon** | [Design a Stateless Generative AI Chat Service](https://www.fastprep.io/system-design/stateless-generative-ai-chat-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/stateless-generative-ai-chat-service) | 🆕 Aug 18, 2026 | | **Pinterest / Slack** | [Design a Typeahead Suggestion Service](https://www.fastprep.io/system-design/typeahead-suggestion-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/typeahead-suggestion-service) | 🆕 Aug 18, 2026 | | **Pinterest** | [Design an Asynchronous Bulk Record Update Service](https://www.fastprep.io/system-design/asynchronous-bulk-record-update-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/asynchronous-bulk-record-update-service) | 🆕 Aug 18, 2026 | | **OnePay / Razorpay** | [Durable Messaging Chat System](https://www.fastprep.io/system-design/durable-messaging-chat-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/durable-messaging-chat-system) | 🆕 Aug 18, 2026 | | **Harvey / Nike, Inc.** | [Grounded Document-Vault Question Answering](https://www.fastprep.io/system-design/grounded-document-vault-question-answering) | System design | [![Practice][p]](https://www.fastprep.io/system-design/grounded-document-vault-question-answering) | 🆕 Aug 17, 2026 | | **Axon** | [Design a Nearest-Timestamp Device Status Service](https://www.fastprep.io/system-design/nearest-timestamp-device-status) | System design | [![Practice][p]](https://www.fastprep.io/system-design/nearest-timestamp-device-status) | 🆕 Aug 17, 2026 | | **Uber Freight** | [Design a Rolling Restaurant Analytics Dashboard](https://www.fastprep.io/system-design/rolling-restaurant-analytics-dashboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/rolling-restaurant-analytics-dashboard) | 🆕 Aug 17, 2026 | | **Airtable / Meta** | [Design a Backend Search Engine](https://www.fastprep.io/system-design/backend-search-engine) | System design | [![Practice][p]](https://www.fastprep.io/system-design/backend-search-engine) | 🆕 Aug 16, 2026 | | **Zoox / Uber** | [Design a Nearby Autonomous Vehicle Search Service](https://www.fastprep.io/system-design/nearby-autonomous-vehicle-search) | System design | [![Practice][p]](https://www.fastprep.io/system-design/nearby-autonomous-vehicle-search) | 🆕 Aug 16, 2026 | | **Amazon** | [Design a Multi-Branch Library Management System](https://www.fastprep.io/system-design/multi-branch-library-management) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multi-branch-library-management) | 🆕 Aug 16, 2026 | | **LinkedIn** | [Design a Ranked Hybrid Social Feed](https://www.fastprep.io/system-design/ranked-hybrid-social-feed) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ranked-hybrid-social-feed) | 🆕 Aug 16, 2026 | | **Microsoft** | [Design a Distributed Expiring LRU Cache](https://www.fastprep.io/system-design/distributed-expiring-lru-cache) | System design | [![Practice][p]](https://www.fastprep.io/system-design/distributed-expiring-lru-cache) | 🆕 Aug 16, 2026 | | **Salesforce** | [Design a Multi-Tenant Order-Statistics Index](https://www.fastprep.io/system-design/multi-tenant-order-statistics-index) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multi-tenant-order-statistics-index) | 🆕 Aug 16, 2026 | | **DoorDash** | [Design a Sliding-Window Restaurant Leaderboard](https://www.fastprep.io/system-design/sliding-window-restaurant-leaderboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/sliding-window-restaurant-leaderboard) | 🆕 Aug 16, 2026 | | **Adobe** | [Design a Versioned Localization Resource Platform](https://www.fastprep.io/system-design/versioned-localization-resource-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/versioned-localization-resource-platform) | 🆕 Aug 16, 2026 | | **Salesforce** | [Design an Enterprise Multi-Tenant Messaging Platform](https://www.fastprep.io/system-design/enterprise-tenant-messaging-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/enterprise-tenant-messaging-platform) | 🆕 Aug 16, 2026 | | **Adobe** | [Design an Extensible Tree Traversal Toolkit](https://www.fastprep.io/system-design/extensible-tree-traversal-toolkit) | System design | [![Practice][p]](https://www.fastprep.io/system-design/extensible-tree-traversal-toolkit) | 🆕 Aug 16, 2026 | | **Apple** | [Design Cross-Device Wallpaper Synchronization](https://www.fastprep.io/system-design/cross-device-wallpaper-sync) | System design | [![Practice][p]](https://www.fastprep.io/system-design/cross-device-wallpaper-sync) | 🆕 Aug 16, 2026 | | **DoorDash** | [Build a Refund DAG with Local HTTP Services](https://www.fastprep.io/project-coding/doordash-refund-dag-local-services) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/doordash-refund-dag-local-services) | 🆕 Aug 15, 2026 | | **Amazon / Meta** | [Design a Cloud File Storage System](https://www.fastprep.io/system-design/cloud-file-storage) | System design | [![Practice][p]](https://www.fastprep.io/system-design/cloud-file-storage) | 🆕 Aug 15, 2026 | | **Snowflake** | [Design Calendar Client State and Recurrence](https://www.fastprep.io/system-design/calendar-client-state-and-recurrence) | System design | [![Practice][p]](https://www.fastprep.io/system-design/calendar-client-state-and-recurrence) | 🆕 Aug 15, 2026 | | **Microsoft** | [Nearby Restaurant Search Service](https://www.fastprep.io/system-design/nearby-restaurant-search-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/nearby-restaurant-search-service) | 🆕 Aug 15, 2026 | | **Microsoft** | [Desktop Notification Center](https://www.fastprep.io/low-level-design/desktop-notification-center) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/desktop-notification-center) | 🆕 Aug 15, 2026 | | **DoorDash** | [Debug Two Routing Strategies](https://www.fastprep.io/project-coding/doordash-routing-strategy-debugger) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/doordash-routing-strategy-debugger) | 🆕 Aug 15, 2026 | | **DoorDash** | [Integrate Three Profile Services](https://www.fastprep.io/project-coding/doordash-service-profile-aggregator) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/doordash-service-profile-aggregator) | 🆕 Aug 15, 2026 | | **Giga** | [Design a Browser-Automated Customer Support Agent](https://www.fastprep.io/system-design/browser-automated-customer-support-agent) | System design | [![Practice][p]](https://www.fastprep.io/system-design/browser-automated-customer-support-agent) | 🆕 Aug 14, 2026 | | **OpenAI** | [Design In-Store Merchant Payment Reconciliation](https://www.fastprep.io/system-design/offline-merchant-payment-reconciliation) | System design | [![Practice][p]](https://www.fastprep.io/system-design/offline-merchant-payment-reconciliation) | 🆕 Aug 14, 2026 | | **Rippling / Amazon** | [Design an Event Ingestion Platform](https://www.fastprep.io/system-design/durable-event-ingestion-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/durable-event-ingestion-platform) | 🆕 Aug 14, 2026 | | **Spotify** | [Design a Personalized Session Playlist Ranking System](https://www.fastprep.io/system-design/personalized-session-playlist-ranking) | System design | [![Practice][p]](https://www.fastprep.io/system-design/personalized-session-playlist-ranking) | 🆕 Aug 14, 2026 | | **Wells Fargo** | [Cursor-Paginated Records Service](https://www.fastprep.io/system-design/cursor-paginated-records-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/cursor-paginated-records-service) | 🆕 Aug 14, 2026 | | **Anthropic** | [Design Peer-to-Peer Model Distribution](https://www.fastprep.io/system-design/peer-to-peer-model-distribution) | System design | [![Practice][p]](https://www.fastprep.io/system-design/peer-to-peer-model-distribution) | 🆕 Aug 13, 2026 | | **OpenAI** | [Design a Distributed Crossword Solver](https://www.fastprep.io/system-design/distributed-crossword-solver-orchestration) | System design | [![Practice][p]](https://www.fastprep.io/system-design/distributed-crossword-solver-orchestration) | 🆕 Aug 13, 2026 | | **Meta** | [Design a Multimodal Public-Content Safety Platform](https://www.fastprep.io/system-design/multimodal-public-content-safety-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multimodal-public-content-safety-platform) | 🆕 Aug 13, 2026 | | **Databricks** | [Online Bookseller Platform](https://www.fastprep.io/system-design/online-bookseller-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/online-bookseller-platform) | 🆕 Aug 13, 2026 | | **Agoda** | [Resilient Hotel Search Frontend](https://www.fastprep.io/system-design/resilient-hotel-search-frontend) | System design | [![Practice][p]](https://www.fastprep.io/system-design/resilient-hotel-search-frontend) | 🆕 Aug 13, 2026 | | **IMC** | [Rock Jumping](https://www.fastprep.io/problems/imc-rock-jumping) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-rock-jumping) | 🆕 Aug 13, 2026 | | **IMC** | [Stack Batch Removal](https://www.fastprep.io/problems/imc-stack-batch-removal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-stack-batch-removal) | 🆕 Aug 13, 2026 | | **Anthropic** | [Inference Engine (Fellow Program :D](https://www.fastprep.io/project-coding/anthropic-inference-engine-scheduler) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/anthropic-inference-engine-scheduler) | 🆕 Aug 12, 2026 | | **Anthropic** | [Debug Extremely Randomized Trees (Fellow Program :)](https://www.fastprep.io/project-coding/anthropic-extremely-randomized-trees) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/anthropic-extremely-randomized-trees) | 🆕 Aug 12, 2026 | | **OpenAI / The D. E. Shaw Group / Zoox** | [Design an Online Payment Processing System](https://www.fastprep.io/system-design/online-payment-processing-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/online-payment-processing-system) | 🆕 Aug 12, 2026 | | **Figma** | [Design Comments for a Collaborative Canvas](https://www.fastprep.io/system-design/collaborative-canvas-comments) | System design | [![Practice][p]](https://www.fastprep.io/system-design/collaborative-canvas-comments) | 🆕 Aug 12, 2026 | | **Goldman Sachs** | [Design a Live-Stream Chat System](https://www.fastprep.io/system-design/live-stream-chat-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/live-stream-chat-system) | 🆕 Aug 12, 2026 | | **Coinbase / Goldman Sachs** | [Design a Brokerage Order Processing System](https://www.fastprep.io/system-design/brokerage-order-processing-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/brokerage-order-processing-system) | 🆕 Aug 12, 2026 | | **ByteDance** | [Design a Multimedia Content Moderation Platform](https://www.fastprep.io/system-design/multimedia-content-moderation-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multimedia-content-moderation-platform) | 🆕 Aug 12, 2026 | | **Mercor** | [Design a Unique Username Registration System](https://www.fastprep.io/system-design/unique-username-registration-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/unique-username-registration-system) | 🆕 Aug 12, 2026 | | **Shopify** | [Design an Extensible Text Editor](https://www.fastprep.io/low-level-design/extensible-text-editor) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/extensible-text-editor) | 🆕 Aug 12, 2026 | | **Snap Inc.** | [Build a Persistent Chat Backend](https://www.fastprep.io/project-coding/persistent-chat-backend) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/persistent-chat-backend) | 🆕 Aug 12, 2026 | | **Amazon** | [Design Smart-Device Feature Announcement Delivery](https://www.fastprep.io/system-design/smart-device-feature-announcement-delivery) | System design | [![Practice][p]](https://www.fastprep.io/system-design/smart-device-feature-announcement-delivery) | 🆕 Aug 12, 2026 | | **Amazon** | [Design a Multi-Stage Audio Buffer Pipeline](https://www.fastprep.io/low-level-design/multi-stage-audio-buffer-pipeline) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/multi-stage-audio-buffer-pipeline) | 🆕 Aug 12, 2026 | | **Snowflake / Dropbox** | [Design a Fault-Tolerant Cloud Queue Service](https://www.fastprep.io/system-design/fault-tolerant-cloud-queue-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/fault-tolerant-cloud-queue-service) | 🆕 Aug 11, 2026 | | **Apple** | [Design a Mobile Application Event Collection API](https://www.fastprep.io/system-design/mobile-application-event-collection-api) | System design | [![Practice][p]](https://www.fastprep.io/system-design/mobile-application-event-collection-api) | 🆕 Aug 11, 2026 | | **Rippling** | [Design a Room-Type Hotel Booking System](https://www.fastprep.io/system-design/room-type-hotel-booking-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/room-type-hotel-booking-system) | 🆕 Aug 11, 2026 | | **Pinterest** | [Design an Ad Event Measurement Platform](https://www.fastprep.io/system-design/ad-event-measurement-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ad-event-measurement-platform) | 🆕 Aug 11, 2026 | | **Apple** | [Design an Analytical Data Dashboard](https://www.fastprep.io/system-design/analytical-data-dashboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/analytical-data-dashboard) | 🆕 Aug 11, 2026 | | **Databricks** | [Design an LLM Content Safety Service](https://www.fastprep.io/system-design/llm-content-safety-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/llm-content-safety-service) | 🆕 Aug 11, 2026 | | **Postman / Uber Freight** | [Design a Calendar Event Collaboration System](https://www.fastprep.io/system-design/calendar-event-collaboration-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/calendar-event-collaboration-system) | 🆕 Aug 11, 2026 | | **Microsoft** | [Design a Library Circulation System](https://www.fastprep.io/low-level-design/library-circulation-management) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/library-circulation-management) | 🆕 Aug 11, 2026 | | **Google** | [Design a Real-Time Anomaly Detection Service](https://www.fastprep.io/system-design/real-time-anomaly-detection-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/real-time-anomaly-detection-service) | 🆕 Aug 10, 2026 | | **Amazon / Oracle** | [Design a Netflix-Style Streaming Platform](https://www.fastprep.io/system-design/netflix-streaming-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/netflix-streaming-platform) | 🆕 Aug 10, 2026 | | **Uber** | [Design a Driver Review Leaderboard](https://www.fastprep.io/system-design/driver-review-leaderboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/driver-review-leaderboard) | 🆕 Aug 10, 2026 | | **Oracle** | [Design a Remote Browser Isolation Service](https://www.fastprep.io/system-design/remote-browser-isolation-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/remote-browser-isolation-service) | 🆕 Aug 10, 2026 | | **Pinterest** | [Design a Blackjack Table Game](https://www.fastprep.io/low-level-design/blackjack-table-game) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/blackjack-table-game) | 🆕 Aug 10, 2026 | | **Spotify** | [Design a Weekly User Activity Prediction System](https://www.fastprep.io/system-design/weekly-user-activity-prediction) | System design | [![Practice][p]](https://www.fastprep.io/system-design/weekly-user-activity-prediction) | 🆕 Aug 10, 2026 | | **Anthropic** | [Design Production ML Serving Observability](https://www.fastprep.io/system-design/production-ml-serving-observability) | System design | [![Practice][p]](https://www.fastprep.io/system-design/production-ml-serving-observability) | 🆕 Aug 10, 2026 | | **Amazon** | [Design Group Purchase Contributions and Settlement](https://www.fastprep.io/system-design/group-purchase-contribution-settlement) | System design | [![Practice][p]](https://www.fastprep.io/system-design/group-purchase-contribution-settlement) | 🆕 Aug 10, 2026 | | **Apple** | [Design an On-Prem Media Transfer for Cloud GPU Training](https://www.fastprep.io/system-design/on-prem-media-transfer-to-cloud-gpu-training) | System design | [![Practice][p]](https://www.fastprep.io/system-design/on-prem-media-transfer-to-cloud-gpu-training) | 🆕 Aug 09, 2026 | | **IBM** | [Maximize Consecutive XOR](https://www.fastprep.io/problems/ibm-maximize-consecutive-xor) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-maximize-consecutive-xor) | 🆕 Aug 09, 2026 | | **IBM** | [Count Digit Holes](https://www.fastprep.io/problems/ibm-count-digit-holes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-digit-holes) | 🆕 Aug 09, 2026 | | **Amazon / Airwallex** | [Design a Ticket Booking System](https://www.fastprep.io/system-design/ticket-booking-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ticket-booking-system) | 🆕 Aug 09, 2026 | | **Adobe** | [Design Infinite Scroll for Mutable Data](https://www.fastprep.io/low-level-design/adobe-mutable-infinite-scroll) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/adobe-mutable-infinite-scroll) | 🆕 Aug 09, 2026 | | **Adobe** | [Design a Promotion Display Decision Engine](https://www.fastprep.io/low-level-design/promotion-display-decision-engine) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/promotion-display-decision-engine) | 🆕 Aug 09, 2026 | | **Zoox** | [Design a Real-Time Fleet Location Display](https://www.fastprep.io/system-design/real-time-fleet-location-display) | System design | [![Practice][p]](https://www.fastprep.io/system-design/real-time-fleet-location-display) | 🆕 Aug 07, 2026 | | **Figma** | [Design Trending Design Files](https://www.fastprep.io/system-design/trending-design-files) | System design | [![Practice][p]](https://www.fastprep.io/system-design/trending-design-files) | 🆕 Aug 07, 2026 | | **Anthropic** | [Repair an Agent and Reduce Its Turn Count](https://www.fastprep.io/project-coding/anthropic-agent-turn-reduction) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/anthropic-agent-turn-reduction) | 🆕 Aug 06, 2026 | | **Amazon / Goldman Sachs / Wayfair** | [Design a Multi-Floor Parking Lot](https://www.fastprep.io/low-level-design/multi-floor-parking-lot) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/multi-floor-parking-lot) | 🆕 Aug 06, 2026 | | **Rippling** | [Design a Frontend News Feed with Offline Virtualization](https://www.fastprep.io/system-design/frontend-news-feed-offline-virtualization) | System design | [![Practice][p]](https://www.fastprep.io/system-design/frontend-news-feed-offline-virtualization) | 🆕 Aug 06, 2026 | | **Wayfair** | [Design an Audio Fingerprint Recognition Service](https://www.fastprep.io/system-design/audio-fingerprint-recognition-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/audio-fingerprint-recognition-service) | 🆕 Aug 06, 2026 | | **Amazon** | [Design an ML Training and Deployment Platform](https://www.fastprep.io/system-design/ml-training-and-inference-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ml-training-and-inference-platform) | 🆕 Aug 06, 2026 | | **Pinterest** | [Design Viral Comment Notification Aggregation](https://www.fastprep.io/system-design/viral-comment-notification-aggregation) | System design | [![Practice][p]](https://www.fastprep.io/system-design/viral-comment-notification-aggregation) | 🆕 Aug 06, 2026 | | **infosys** | [Design Offline-First Document Autosave and Synchronization](https://www.fastprep.io/system-design/offline-first-document-autosave-sync) | System design | [![Practice][p]](https://www.fastprep.io/system-design/offline-first-document-autosave-sync) | 🆕 Aug 06, 2026 | | **Otter.ai** | [Design a Meeting Bot Allocation and Status Platform](https://www.fastprep.io/system-design/meeting-bot-allocation-and-status-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/meeting-bot-allocation-and-status-platform) | 🆕 Aug 06, 2026 | | **Headway** | [Design Vacation Rental Listing Search](https://www.fastprep.io/system-design/vacation-rental-listing-search) | System design | [![Practice][p]](https://www.fastprep.io/system-design/vacation-rental-listing-search) | 🆕 Aug 06, 2026 | | **Headway** | [Fixed-Window Rate Limiter Middleware](https://www.fastprep.io/project-coding/fixed-window-rate-limiter-middleware) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/fixed-window-rate-limiter-middleware) | 🆕 Aug 06, 2026 | | **Headway** | [Repair Insurance Eligibility Status Projection](https://www.fastprep.io/project-coding/repair-insurance-eligibility-status-projection) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/repair-insurance-eligibility-status-projection) | 🆕 Aug 06, 2026 | | **TikTok** | [Distribution Center Package Allocation](https://www.fastprep.io/problems/tiktok-distribution-center-package-allocation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-distribution-center-package-allocation) | 🆕 Aug 05, 2026 | | **Netflix** | [Design Advertising Order Lifecycle Tracking](https://www.fastprep.io/system-design/advertising-order-lifecycle-tracking) | System design | [![Practice][p]](https://www.fastprep.io/system-design/advertising-order-lifecycle-tracking) | 🆕 Aug 05, 2026 | | **Netflix** | [Design an Advertising Frequency-Capping Service](https://www.fastprep.io/system-design/advertising-frequency-capping-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/advertising-frequency-capping-service) | 🆕 Aug 05, 2026 | | **TikTok** | [Concatenate Digit-wise Sums](https://www.fastprep.io/problems/tiktok-concatenate-digit-wise-sums) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-concatenate-digit-wise-sums) | 🆕 Aug 05, 2026 | | **TikTok** | [Count 2x2 Submatrices by Black Cells](https://www.fastprep.io/problems/tiktok-count-black-blocks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-black-blocks) | 🆕 Aug 05, 2026 | | **TikTok** | [Count House Segments After Destruction](https://www.fastprep.io/problems/tiktok-count-house-segments-after-destruction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-house-segments-after-destruction) | 🆕 Aug 05, 2026 | | **TikTok** | [Debugger Breakpoint Actions](https://www.fastprep.io/problems/tiktok-debugger-breakpoint-actions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-debugger-breakpoint-actions) | 🆕 Aug 05, 2026 | | **TikTok** | [Find All Local Peaks](https://www.fastprep.io/problems/tiktok-find-all-local-peaks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-all-local-peaks) | 🆕 Aug 05, 2026 | | **TikTok** | [Minimum Height Difference Between Distant Peaks](https://www.fastprep.io/problems/tiktok-minimum-height-difference-between-distant-peaks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-minimum-height-difference-between-distant-peaks) | 🆕 Aug 05, 2026 | | **TikTok** | [Minimum Operations for Stepwise Structures](https://www.fastprep.io/problems/tiktok-minimum-operations-for-stepwise-structures) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-minimum-operations-for-stepwise-structures) | 🆕 Aug 05, 2026 | | **TikTok** | [Rating Level After Changes](https://www.fastprep.io/problems/tiktok-rating-level-after-changes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-rating-level-after-changes) | 🆕 Aug 05, 2026 | | **TikTok** | [Space Station Shuttle Missions](https://www.fastprep.io/problems/tiktok-space-station-shuttle-missions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-space-station-shuttle-missions) | 🆕 Aug 05, 2026 | | **Apple** | [Design a Multi-Device Photo Storage System](https://www.fastprep.io/system-design/multi-device-photo-storage) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multi-device-photo-storage) | 🆕 Aug 05, 2026 | | **JPMorgan Chase** | [Design a Fleet Insurance Registration Platform](https://www.fastprep.io/system-design/fleet-insurance-registration-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/fleet-insurance-registration-platform) | 🆕 Aug 05, 2026 | | **IMC** | [Weighted LFU Cache](https://www.fastprep.io/problems/imc-weighted-lfu-cache) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-weighted-lfu-cache) | 🆕 Aug 05, 2026 | | **TikTok** | [Count Case-Insensitive Triplets](https://www.fastprep.io/problems/tiktok-count-case-insensitive-triplets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-case-insensitive-triplets) | 🆕 Aug 04, 2026 | | **TikTok** | [Linear Warehouse Drone Delivery](https://www.fastprep.io/problems/tiktok-linear-warehouse-drone-delivery) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-linear-warehouse-drone-delivery) | 🆕 Aug 04, 2026 | | **Figma** | [Design Access-Aware Design-File Retrieval and Ranking](https://www.fastprep.io/system-design/access-aware-design-file-retrieval-ranking) | System design | [![Practice][p]](https://www.fastprep.io/system-design/access-aware-design-file-retrieval-ranking) | 🆕 Aug 04, 2026 | | **OpenAI / Figma** | [Design an Agent Evaluation Platform](https://www.fastprep.io/system-design/agent-evaluation-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/agent-evaluation-platform) | 🆕 Aug 04, 2026 | | **Capital One** | [Obstacle Placement Queries](https://www.fastprep.io/problems/capital-one-obstacle-placement-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-obstacle-placement-queries) | 🆕 Aug 04, 2026 | | **TikTok** | [Product Minus Sum of Digits](https://www.fastprep.io/problems/tiktok-product-minus-sum-of-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-product-minus-sum-of-digits) | 🆕 Aug 04, 2026 | | **Adyen** | [Design a Campaign Milestone Visitor Reward](https://www.fastprep.io/system-design/campaign-milestone-visitor-reward) | System design | [![Practice][p]](https://www.fastprep.io/system-design/campaign-milestone-visitor-reward) | 🆕 Aug 04, 2026 | | **IMC** | [Chain of Command](https://www.fastprep.io/problems/imc-chain-of-command) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-chain-of-command) | 🆕 Aug 04, 2026 | | **IMC** | [Choose Containers](https://www.fastprep.io/problems/imc-choose-containers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-choose-containers) | 🆕 Aug 04, 2026 | | **HSBC** | [Minimum Satellite Data Transfer Iterations](https://www.fastprep.io/problems/hsbc-minimum-satellite-transfer-iterations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hsbc-minimum-satellite-transfer-iterations) | 🆕 Aug 03, 2026 | | **HSBC** | [Organization Reputation After Employee Departures](https://www.fastprep.io/problems/hsbc-organization-reputation-after-departures) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hsbc-organization-reputation-after-departures) | 🆕 Aug 03, 2026 | | **DoorDash** | [Design a Downstream-Service Alert Notification System](https://www.fastprep.io/system-design/downstream-service-alert-notification-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/downstream-service-alert-notification-system) | 🆕 Aug 03, 2026 | | **Anthropic** | [Design a Prompt Playground](https://www.fastprep.io/system-design/prompt-playground-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/prompt-playground-system) | 🆕 Aug 03, 2026 | | **Amazon** | [Repair the Wallet Loan Marketplace](https://www.fastprep.io/project-coding/repair-wallet-loan-marketplace) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/repair-wallet-loan-marketplace) | 🆕 Aug 03, 2026 | | **Gusto** | [Design a Restaurant Staff Scheduling System](https://www.fastprep.io/system-design/restaurant-scheduling-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/restaurant-scheduling-system) | 🆕 Aug 03, 2026 | | **HSBC** | [Remove Vowels from a String](https://www.fastprep.io/problems/hsbc-remove-vowels) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hsbc-remove-vowels) | 🆕 Aug 03, 2026 | | **Infosys** | [Count Valid A-B-C Sequences Under a Modulo-Four Rule](https://www.fastprep.io/problems/infosys-count-valid-abc-sequences-mod-four) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-count-valid-abc-sequences-mod-four) | 🆕 Aug 02, 2026 | | **Infosys** | [Maximum Product of a Strictly Increasing Contiguous Subarray](https://www.fastprep.io/problems/infosys-maximum-product-increasing-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-maximum-product-increasing-subarray) | 🆕 Aug 02, 2026 | | **Infosys** | [Minimum Cost to Assign Candidates to Two Cities](https://www.fastprep.io/problems/infosys-two-city-candidate-assignment-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-two-city-candidate-assignment-cost) | 🆕 Aug 02, 2026 | | **OpenAI** | [Design a Declarative Infrastructure Orchestrator](https://www.fastprep.io/system-design/declarative-infrastructure-orchestrator) | System design | [![Practice][p]](https://www.fastprep.io/system-design/declarative-infrastructure-orchestrator) | 🆕 Aug 02, 2026 | | **Baseten** | [Build a Durable Single-Server Key-Value Store](https://www.fastprep.io/project-coding/durable-filesystem-byte-key-value-store) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/durable-filesystem-byte-key-value-store) | 🆕 Aug 02, 2026 | | **Baseten** | [Parallelize API Calls with a Thread Pool](https://www.fastprep.io/project-coding/parallel-api-thread-pool-runner) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/parallel-api-thread-pool-runner) | 🆕 Aug 02, 2026 | | **Asana** | [Design a Rectangular Jigsaw Puzzle](https://www.fastprep.io/low-level-design/rectangular-jigsaw-puzzle) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/rectangular-jigsaw-puzzle) | 🆕 Aug 02, 2026 | | **Decagon** | [Design a Multi-Tenant AI Gateway](https://www.fastprep.io/system-design/multi-tenant-ai-gateway) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multi-tenant-ai-gateway) | 🆕 Aug 01, 2026 | | **Scale AI** | [Design an Embedding and Classification API](https://www.fastprep.io/system-design/embedding-and-classification-api) | System design | [![Practice][p]](https://www.fastprep.io/system-design/embedding-and-classification-api) | 🆕 Aug 01, 2026 | | **Apple** | [Design an Online Voting Service](https://www.fastprep.io/system-design/online-voting-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/online-voting-service) | 🆕 Aug 01, 2026 | | **Scale AI** | [Build a CSV-to-JSON LLM Categorization Service](https://www.fastprep.io/project-coding/scale-csv-json-llm-categorization-service) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/scale-csv-json-llm-categorization-service) | 🆕 Aug 01, 2026 | | **Superhuman** | [Reverse a Singly Linked List](https://www.fastprep.io/problems/superhuman-reverse-linked-list) | Coding | [![Practice][p]](https://www.fastprep.io/problems/superhuman-reverse-linked-list) | 🆕 Jul 31, 2026 | | **Superhuman** | [Recover a Tree from Preorder Depth Encoding](https://www.fastprep.io/problems/superhuman-recover-tree-from-preorder-depth) | Coding | [![Practice][p]](https://www.fastprep.io/problems/superhuman-recover-tree-from-preorder-depth) | 🆕 Jul 31, 2026 | | **Superhuman** | [Deep Copy a Singly Linked List](https://www.fastprep.io/problems/superhuman-deep-copy-linked-list) | Coding | [![Practice][p]](https://www.fastprep.io/problems/superhuman-deep-copy-linked-list) | 🆕 Jul 31, 2026 | | **Superhuman** | [Deep Copy a Random-Pointer List](https://www.fastprep.io/problems/superhuman-copy-random-pointer-list) | Coding | [![Practice][p]](https://www.fastprep.io/problems/superhuman-copy-random-pointer-list) | 🆕 Jul 31, 2026 | | **Chicago Trading** | [Design a Pre-Trade Risk Checking System](https://www.fastprep.io/system-design/pre-trade-risk-checking-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/pre-trade-risk-checking-system) | 🆕 Jul 31, 2026 | | **Plaid** | [Design an Embedded Pay-by-Bank Checkout](https://www.fastprep.io/system-design/embedded-pay-by-bank-checkout) | System design | [![Practice][p]](https://www.fastprep.io/system-design/embedded-pay-by-bank-checkout) | 🆕 Jul 31, 2026 | | **OpenAI** | [Repair a Deployed Django Rate Limiter](https://www.fastprep.io/project-coding/openai-django-rate-limiter) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/openai-django-rate-limiter) | 🆕 Jul 31, 2026 | | **Amazon** | [Meeting Rooms II](https://www.fastprep.io/problems/amazon-meeting-rooms-ii) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-meeting-rooms-ii) | 🆕 Jul 30, 2026 | | **Microsoft** | [Maximum Score with Prime Jumps](https://www.fastprep.io/problems/microsoft-maximum-score-with-prime-jumps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-score-with-prime-jumps) | 🆕 Jul 30, 2026 | | **Visa** | [Connected Groups](https://www.fastprep.io/problems/visa-connected-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-connected-groups) | 🆕 Jul 30, 2026 | | **Visa** | [Perfect Substrings](https://www.fastprep.io/problems/visa-perfect-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-perfect-substring) | 🆕 Jul 30, 2026 | | **Oracle** | [Alphabetically Maximum Substring](https://www.fastprep.io/problems/oracle-alphabetically-maximum-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-alphabetically-maximum-substring) | 🆕 Jul 30, 2026 | | **Lyft** | [Stateful Paginated Fetch N](https://www.fastprep.io/problems/lyft-stateful-paginated-fetch-n) | Coding | [![Practice][p]](https://www.fastprep.io/problems/lyft-stateful-paginated-fetch-n) | 🆕 Jul 30, 2026 | | **StackAdapt** | [Nested Recipe Inventory Manager](https://www.fastprep.io/problems/stackadapt-nested-recipe-inventory-manager) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stackadapt-nested-recipe-inventory-manager) | 🆕 Jul 30, 2026 | | **Snowflake** | [Distributed Tree Counting State Machine](https://www.fastprep.io/problems/snowflake-distributed-tree-counting-state-machine) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-distributed-tree-counting-state-machine) | 🆕 Jul 30, 2026 | | **Snowflake** | [Maximum Number of Events That Can Be Attended](https://www.fastprep.io/problems/snowflake-maximum-number-of-events-that-can-be-attended) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-maximum-number-of-events-that-can-be-attended) | 🆕 Jul 30, 2026 | | **Amazon** | [Single Element in a Sorted Array](https://www.fastprep.io/problems/amazon-single-element-in-sorted-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-single-element-in-sorted-array) | 🆕 Jul 30, 2026 | | **eBay** | [K Smallest Elements from Sorted Arrays](https://www.fastprep.io/problems/ebay-k-smallest-from-sorted-arrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ebay-k-smallest-from-sorted-arrays) | 🆕 Jul 30, 2026 | | **eBay** | [Single-Pass Search in a Rotated Sorted Array](https://www.fastprep.io/problems/ebay-single-pass-rotated-array-search) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ebay-single-pass-rotated-array-search) | 🆕 Jul 30, 2026 | | **Opendoor** | [Finite Same-Origin Web Crawler](https://www.fastprep.io/problems/opendoor-finite-web-crawler) | Coding | [![Practice][p]](https://www.fastprep.io/problems/opendoor-finite-web-crawler) | 🆕 Jul 30, 2026 | | **Oracle** | [Enumerate Right-and-Down Matrix Paths](https://www.fastprep.io/problems/oracle-enumerate-right-down-matrix-paths) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-enumerate-right-down-matrix-paths) | 🆕 Jul 30, 2026 | | **Oracle** | [Maximize Movie Ratings Without Consecutive Skips](https://www.fastprep.io/problems/oracle-maximize-movie-ratings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-maximize-movie-ratings) | 🆕 Jul 30, 2026 | | **DoorDash** | [Random Dasher Set Operations](https://www.fastprep.io/problems/doordash-random-dasher-set) | Coding | [![Practice][p]](https://www.fastprep.io/problems/doordash-random-dasher-set) | 🆕 Jul 30, 2026 | | **Databricks** | [Key-Value Store with Hit Counter](https://www.fastprep.io/problems/databricks-key-value-store-with-hit-counter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-key-value-store-with-hit-counter) | 🆕 Jul 30, 2026 | | **Oracle** | [Best Time to Buy and Sell Stock](https://www.fastprep.io/problems/oracle-best-time-to-buy-and-sell-stock) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-best-time-to-buy-and-sell-stock) | 🆕 Jul 30, 2026 | | **IBM** | [String-Pair Frequency Similarity](https://www.fastprep.io/problems/ibm-string-pair-frequency-similarity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-string-pair-frequency-similarity) | 🆕 Jul 30, 2026 | | **Netflix / FluidStack / DigitalOcean** | [Design a Machine-Learning Job Scheduler](https://www.fastprep.io/system-design/machine-learning-job-scheduler) | System design | [![Practice][p]](https://www.fastprep.io/system-design/machine-learning-job-scheduler) | 🆕 Jul 30, 2026 | | **Pinterest / Amazon / Zoom / Goldman Sachs** | [Design a Following News Feed Service](https://www.fastprep.io/system-design/following-news-feed-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/following-news-feed-service) | 🆕 Jul 30, 2026 | | **Databricks** | [Chat API and Database System](https://www.fastprep.io/system-design/chat-api-and-database-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/chat-api-and-database-system) | 🆕 Jul 30, 2026 | | **Opendoor** | [Map-Based Home Search Backend](https://www.fastprep.io/system-design/map-home-search-backend) | System design | [![Practice][p]](https://www.fastprep.io/system-design/map-home-search-backend) | 🆕 Jul 30, 2026 | | **Databricks** | [Music Playlist System](https://www.fastprep.io/system-design/music-playlist-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/music-playlist-system) | 🆕 Jul 30, 2026 | | **Expedia** | [Design a Partner Data Aggregation and Query Service](https://www.fastprep.io/system-design/partner-data-aggregation-and-query-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/partner-data-aggregation-and-query-service) | 🆕 Jul 30, 2026 | | **Susquehanna International Group** | [Design a Cash Register with Inventory and Profit Tracking](https://www.fastprep.io/low-level-design/cash-register-inventory-and-profit) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/cash-register-inventory-and-profit) | 🆕 Jul 30, 2026 | | **Amazon** | [Design a Database Partition Split-and-Merge Manager](https://www.fastprep.io/low-level-design/database-partition-split-and-merge-manager) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/database-partition-split-and-merge-manager) | 🆕 Jul 30, 2026 | | **Walmart** | [Design a Marketplace Product Catalog Platform](https://www.fastprep.io/system-design/marketplace-product-catalog-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/marketplace-product-catalog-platform) | 🆕 Jul 30, 2026 | | **Amazon** | [Design and Implement a Streaming Log Handler](https://www.fastprep.io/low-level-design/streaming-log-handler) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/streaming-log-handler) | 🆕 Jul 30, 2026 | | **DoorDash** | [Design a Three-Day Charity Event System](https://www.fastprep.io/system-design/three-day-charity-event-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/three-day-charity-event-system) | 🆕 Jul 30, 2026 | | **Attentive** | [Design Retailer Product Catalog Serving](https://www.fastprep.io/system-design/retailer-product-catalog-serving) | System design | [![Practice][p]](https://www.fastprep.io/system-design/retailer-product-catalog-serving) | 🆕 Jul 30, 2026 | | **Mercury Insurance** | [Build a Python CRUD API](https://www.fastprep.io/project-coding/mercury-python-crud-api) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/mercury-python-crud-api) | 🆕 Jul 30, 2026 | | **Cognitiv** | [Word Search](https://www.fastprep.io/problems/cognitiv-word-search) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cognitiv-word-search) | 🆕 Jul 29, 2026 | | **Reddit** | [Chatter Message Window](https://www.fastprep.io/problems/reddit-chatter-message-window) | Coding | [![Practice][p]](https://www.fastprep.io/problems/reddit-chatter-message-window) | 🆕 Jul 29, 2026 | | **Amazon** | [Count the Number of Complete Components](https://www.fastprep.io/problems/amazon-count-complete-components) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-complete-components) | 🆕 Jul 29, 2026 | | **Amazon** | [Cousins in Binary Tree II](https://www.fastprep.io/problems/amazon-cousins-in-binary-tree-ii) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-cousins-in-binary-tree-ii) | 🆕 Jul 29, 2026 | | **Squarepoint** | [Evaluating Circuit Expressions](https://www.fastprep.io/problems/squarepoint-evaluating-circuit-expressions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/squarepoint-evaluating-circuit-expressions) | 🆕 Jul 29, 2026 | | **Rippling** | [Filter and Sort Scheduled Tasks](https://www.fastprep.io/problems/rippling-filter-and-sort-scheduled-tasks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-filter-and-sort-scheduled-tasks) | 🆕 Jul 29, 2026 | | **Google** | [Longest Subarray with Sum at Most K](https://www.fastprep.io/problems/google-longest-subarray-sum-at-most-k) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-longest-subarray-sum-at-most-k) | 🆕 Jul 29, 2026 | | **Google** | [Maximum Sum Path Between Two Leaf Nodes](https://www.fastprep.io/problems/google-maximum-leaf-to-leaf-path-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-maximum-leaf-to-leaf-path-sum) | 🆕 Jul 29, 2026 | | **Amazon** | [Minimum Operations to Make an Array Continuous](https://www.fastprep.io/problems/amazon-minimum-operations-to-make-array-continuous) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-operations-to-make-array-continuous) | 🆕 Jul 29, 2026 | | **Lyft** | [Minimum Window Substring](https://www.fastprep.io/problems/lyft-minimum-window-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/lyft-minimum-window-substring) | 🆕 Jul 29, 2026 | | **Netflix** | [Movie Billboard Rotation](https://www.fastprep.io/problems/netflix-movie-billboard-rotation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/netflix-movie-billboard-rotation) | 🆕 Jul 29, 2026 | | **Instacart** | [Product Total With the Cheapest Promotion](https://www.fastprep.io/problems/instacart-product-total-with-cheapest-promotion) | Coding | [![Practice][p]](https://www.fastprep.io/problems/instacart-product-total-with-cheapest-promotion) | 🆕 Jul 29, 2026 | | **Airbnb** | [Recipe Management System](https://www.fastprep.io/problems/airbnb-recipe-management-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-recipe-management-system) | 🆕 Jul 29, 2026 | | **Instacart** | [Sort Products by Aisle With Frozen Items Last](https://www.fastprep.io/problems/instacart-sort-products-by-aisle-with-frozen-last) | Coding | [![Practice][p]](https://www.fastprep.io/problems/instacart-sort-products-by-aisle-with-frozen-last) | 🆕 Jul 29, 2026 | | **Amazon** | [Vertical Order Traversal of a Binary Tree](https://www.fastprep.io/problems/amazon-vertical-order-traversal-of-binary-tree) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-vertical-order-traversal-of-binary-tree) | 🆕 Jul 29, 2026 | | **Databricks** | [Bookstore Batch Book-Price API](https://www.fastprep.io/system-design/bookstore-batch-book-price-api) | System design | [![Practice][p]](https://www.fastprep.io/system-design/bookstore-batch-book-price-api) | 🆕 Jul 29, 2026 | | **Rippling** | [Design a Publisher News Feed](https://www.fastprep.io/system-design/publisher-news-feed) | System design | [![Practice][p]](https://www.fastprep.io/system-design/publisher-news-feed) | 🆕 Jul 29, 2026 | | **Rippling** | [Design an Exact-Room Hotel Reservation System](https://www.fastprep.io/system-design/exact-room-hotel-reservation-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/exact-room-hotel-reservation-system) | 🆕 Jul 29, 2026 | | **Pinterest / Instacart** | [Design an Inventory Management Service](https://www.fastprep.io/system-design/inventory-management-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/inventory-management-service) | 🆕 Jul 29, 2026 | | **Amazon** | [Design Offline Reading-Progress Synchronization](https://www.fastprep.io/system-design/offline-reading-progress-sync) | System design | [![Practice][p]](https://www.fastprep.io/system-design/offline-reading-progress-sync) | 🆕 Jul 29, 2026 | | **Databricks** | [WAL-Backed Batched Log-Writing System](https://www.fastprep.io/system-design/wal-backed-batched-log-writing-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/wal-backed-batched-log-writing-system) | 🆕 Jul 29, 2026 | | **Databricks** | [Design a Locking Key-Value Store with Batch Writes](https://www.fastprep.io/low-level-design/locking-key-value-store-with-batch-writes) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/locking-key-value-store-with-batch-writes) | 🆕 Jul 29, 2026 | | **Databricks** | [Design a WAL-Backed Batch Log Writer](https://www.fastprep.io/low-level-design/wal-backed-batch-log-writer) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/wal-backed-batch-log-writer) | 🆕 Jul 29, 2026 | | **Bilt Rewards** | [Configurable Reward Points Service](https://www.fastprep.io/system-design/configurable-reward-points-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/configurable-reward-points-service) | 🆕 Jul 29, 2026 | | **Remitly** | [IP Address Filtering Service](https://www.fastprep.io/system-design/ip-address-filtering-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ip-address-filtering-service) | 🆕 Jul 29, 2026 | | **Harness** | [Streaming Ingredient Dishes](https://www.fastprep.io/problems/harness-streaming-ingredient-dishes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/harness-streaming-ingredient-dishes) | 🆕 Jul 28, 2026 | | **Oracle** | [Add One to a Number Represented as Digits](https://www.fastprep.io/problems/oracle-plus-one-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-plus-one-digits) | 🆕 Jul 28, 2026 | | **Oracle** | [Top K Frequent Elements with Larger-Value Tie Break](https://www.fastprep.io/problems/oracle-top-k-frequent-elements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-top-k-frequent-elements) | 🆕 Jul 28, 2026 | | **Virtu Financial** | [Profit Analysis](https://www.fastprep.io/problems/virtu-profit-analysis) | Coding | [![Practice][p]](https://www.fastprep.io/problems/virtu-profit-analysis) | 🆕 Jul 28, 2026 | | **Virtu Financial** | [Banking Transaction Exceptions](https://www.fastprep.io/problems/virtu-banking-transaction-exceptions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/virtu-banking-transaction-exceptions) | 🆕 Jul 28, 2026 | | **Virtu Financial** | [FIX Message Reconciliation](https://www.fastprep.io/problems/virtu-fix-message-reconciliation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/virtu-fix-message-reconciliation) | 🆕 Jul 28, 2026 | | **Amazon** | [HTTP Request Redirection](https://www.fastprep.io/problems/amazon-http-request-redirection) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-http-request-redirection) | 🆕 Jul 28, 2026 | | **Google** | [Split a Log Outside Quotes](https://www.fastprep.io/problems/google-split-log-outside-quotes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-split-log-outside-quotes) | 🆕 Jul 28, 2026 | | **Stripe** | [Group Linked Merchant Records](https://www.fastprep.io/problems/stripe-linked-merchant-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-linked-merchant-groups) | 🆕 Jul 28, 2026 | | **Apple** | [Insert Interval](https://www.fastprep.io/problems/apple-insert-interval) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-insert-interval) | 🆕 Jul 28, 2026 | | **Google** | [Decode String](https://www.fastprep.io/problems/google-decode-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-decode-string) | 🆕 Jul 28, 2026 | | **Lyft** | [Minimum Workers with Job Assignments](https://www.fastprep.io/problems/lyft-minimum-workers-job-assignments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/lyft-minimum-workers-job-assignments) | 🆕 Jul 28, 2026 | | **Databricks** | [Blocking Keyed Cache with Waiting Readers](https://www.fastprep.io/problems/databricks-blocking-keyed-cache) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-blocking-keyed-cache) | 🆕 Jul 28, 2026 | | **Google** | [Phone Keypad Letter Combinations](https://www.fastprep.io/problems/google-phone-keypad-letter-combinations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-phone-keypad-letter-combinations) | 🆕 Jul 28, 2026 | | **Google** | [Count Prefix Matches in a Sorted Array](https://www.fastprep.io/problems/google-count-prefix-matches) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-count-prefix-matches) | 🆕 Jul 28, 2026 | | **Uber** | [Minimum Refueling Stops](https://www.fastprep.io/problems/uber-minimum-refueling-stops) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-refueling-stops) | 🆕 Jul 28, 2026 | | **OpenAI** | [Segmented Durable Key-Value Store](https://www.fastprep.io/problems/openai-segmented-durable-key-value-store) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-segmented-durable-key-value-store) | 🆕 Jul 28, 2026 | | **Cresta** | [Particle Moves to Target](https://www.fastprep.io/problems/cresta-particle-moves-to-target) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cresta-particle-moves-to-target) | 🆕 Jul 28, 2026 | | **Cresta** | [Top Three Companies by Profit](https://www.fastprep.io/problems/cresta-top-three-companies-by-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cresta-top-three-companies-by-profit) | 🆕 Jul 28, 2026 | | **Cresta** | [Rightward Bacteria Consumption](https://www.fastprep.io/problems/cresta-rightward-bacteria-consumption) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cresta-rightward-bacteria-consumption) | 🆕 Jul 28, 2026 | | **Google** | [Distributed Quoted-Log Tokenization](https://www.fastprep.io/system-design/distributed-quoted-log-tokenization) | System design | [![Practice][p]](https://www.fastprep.io/system-design/distributed-quoted-log-tokenization) | 🆕 Jul 28, 2026 | | **Lyft** | [Donation Platform](https://www.fastprep.io/system-design/donation-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/donation-platform) | 🆕 Jul 28, 2026 | | **Uber** | [Rolling Stock Price Alert System](https://www.fastprep.io/system-design/rolling-stock-price-alert-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/rolling-stock-price-alert-system) | 🆕 Jul 28, 2026 | | **Uber** | [Design and Implement a Parking Lot](https://www.fastprep.io/low-level-design/uber-parking-lot-design-and-code) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/uber-parking-lot-design-and-code) | 🆕 Jul 28, 2026 | | **Bloomberg** | [Refactor a Cache for Pluggable Eviction Policies](https://www.fastprep.io/low-level-design/extensible-cache-eviction-policies) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/extensible-cache-eviction-policies) | 🆕 Jul 28, 2026 | | **Spotnana** | [Optimal Card Game Score](https://www.fastprep.io/problems/spotnana-optimal-card-game-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/spotnana-optimal-card-game-score) | 🆕 Jul 27, 2026 | | **Zomato / Eternal** | [Maximum Production Within Power](https://www.fastprep.io/problems/zomato-eternal-maximum-production-within-power) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zomato-eternal-maximum-production-within-power) | 🆕 Jul 27, 2026 | | **Zomato / Eternal** | [Rearrange Songs by Author](https://www.fastprep.io/problems/zomato-eternal-rearrange-songs-by-author) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zomato-eternal-rearrange-songs-by-author) | 🆕 Jul 27, 2026 | | **Kikoff** | [JSON Identity Verification](https://www.fastprep.io/problems/kikoff-json-identity-verification) | Coding | [![Practice][p]](https://www.fastprep.io/problems/kikoff-json-identity-verification) | 🆕 Jul 27, 2026 | | **The Allen Institute for AI** | [Streaming Step Progress Hierarchy](https://www.fastprep.io/problems/ai2-streaming-step-progress-hierarchy) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ai2-streaming-step-progress-hierarchy) | 🆕 Jul 27, 2026 | | **Airbnb** | [Parcel Event Tracking](https://www.fastprep.io/problems/airbnb-parcel-event-tracking) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-parcel-event-tracking) | 🆕 Jul 27, 2026 | | **Apple** | [Group Transitive String Aliases](https://www.fastprep.io/problems/apple-transitive-alias-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-transitive-alias-groups) | 🆕 Jul 27, 2026 | | **Nooks** | [Majority Labels over Audio Intervals](https://www.fastprep.io/problems/nooks-majority-label-audio-intervals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/nooks-majority-label-audio-intervals) | 🆕 Jul 27, 2026 | | **Coinbase** | [In-Memory Database](https://www.fastprep.io/problems/coinbase-in-memory-database) | Coding | [![Practice][p]](https://www.fastprep.io/problems/coinbase-in-memory-database) | 🆕 Jul 27, 2026 | | **Shopify** | [Deterministic Secret Santa Assignment](https://www.fastprep.io/problems/shopify-deterministic-secret-santa-assignment) | Coding | [![Practice][p]](https://www.fastprep.io/problems/shopify-deterministic-secret-santa-assignment) | 🆕 Jul 27, 2026 | | **OpenAI** | [Durable String Key-Value Store](https://www.fastprep.io/problems/openai-durable-string-key-value-store) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-durable-string-key-value-store) | 🆕 Jul 27, 2026 | | **Confluent** | [Match a Variadic Function Signature](https://www.fastprep.io/problems/confluent-variadic-function-signature-match) | Coding | [![Practice][p]](https://www.fastprep.io/problems/confluent-variadic-function-signature-match) | 🆕 Jul 27, 2026 | | **Google** | [Ad Score Scheduler With Delay](https://www.fastprep.io/problems/google-ad-score-scheduler-with-delay) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-ad-score-scheduler-with-delay) | 🆕 Jul 27, 2026 | | **Google** | [Alternating-Color Binary Tree Roots](https://www.fastprep.io/problems/google-alternating-binary-tree-roots) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-alternating-binary-tree-roots) | 🆕 Jul 27, 2026 | | **Spotnana** | [Minimize Maximum Pilot Workload](https://www.fastprep.io/problems/spotnana-minimize-maximum-pilot-workload) | Coding | [![Practice][p]](https://www.fastprep.io/problems/spotnana-minimize-maximum-pilot-workload) | 🆕 Jul 27, 2026 | | **Amazon** | [Resolve Task Dependencies](https://www.fastprep.io/problems/amazon-resolve-task-dependencies) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-resolve-task-dependencies) | 🆕 Jul 27, 2026 | | **Google** | [Route Pattern Matcher](https://www.fastprep.io/problems/google-route-pattern-matcher) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-route-pattern-matcher) | 🆕 Jul 27, 2026 | | **Optiver** | [Design a News Subscription Processing Engine](https://www.fastprep.io/system-design/news-subscription-processing-engine) | System design | [![Practice][p]](https://www.fastprep.io/system-design/news-subscription-processing-engine) | 🆕 Jul 27, 2026 | | **Brex** | [Design a Peer-to-Peer Money Transfer System](https://www.fastprep.io/system-design/peer-to-peer-money-transfer-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/peer-to-peer-money-transfer-system) | 🆕 Jul 27, 2026 | | **Distyl AI** | [Design an Iterative Compound-LLM Defense Generator](https://www.fastprep.io/system-design/iterative-compound-llm-defense-generator) | System design | [![Practice][p]](https://www.fastprep.io/system-design/iterative-compound-llm-defense-generator) | 🆕 Jul 27, 2026 | | **Hudson River Trading** | [Design Shared NFS Read Acceleration](https://www.fastprep.io/system-design/shared-nfs-read-acceleration) | System design | [![Practice][p]](https://www.fastprep.io/system-design/shared-nfs-read-acceleration) | 🆕 Jul 27, 2026 | | **Coinbase / Airbnb** | [In-Memory Database](https://www.fastprep.io/project-coding/in-memory-database) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/in-memory-database) | 🆕 Jul 27, 2026 | | **Airbnb** | [Worker Management, Part 1: Office Registration](https://www.fastprep.io/problems/airbnb-worker-management-level-1) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-worker-management-level-1) | 🆕 Jul 26, 2026 | | **Airbnb** | [Worker Management, Part 2: Top Workers](https://www.fastprep.io/problems/airbnb-worker-management-level-2) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-worker-management-level-2) | 🆕 Jul 26, 2026 | | **Airbnb** | [Worker Management, Part 3: Promotions and Salary](https://www.fastprep.io/problems/airbnb-worker-management-level-3) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-worker-management-level-3) | 🆕 Jul 26, 2026 | | **Stripe** | [Merchant Fraud Risk Scoring](https://www.fastprep.io/problems/stripe-merchant-fraud-risk-scoring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-merchant-fraud-risk-scoring) | 🆕 Jul 26, 2026 | | **Boston Consulting Group** | [Dynamic Pair Sum Queries](https://www.fastprep.io/problems/bcg-dynamic-pair-sum-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bcg-dynamic-pair-sum-queries) | 🆕 Jul 26, 2026 | | **Boston Consulting Group** | [Find a Submatrix Matching a Pattern](https://www.fastprep.io/problems/bcg-find-submatrix-matching-pattern) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bcg-find-submatrix-matching-pattern) | 🆕 Jul 26, 2026 | | **Boston Consulting Group** | [Longest Contiguous Character Run](https://www.fastprep.io/problems/bcg-longest-contiguous-character-run) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bcg-longest-contiguous-character-run) | 🆕 Jul 26, 2026 | | **Boston Consulting Group** | [Even-Position Monotonicity](https://www.fastprep.io/problems/boston-consulting-group-even-position-monotonicity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/boston-consulting-group-even-position-monotonicity) | 🆕 Jul 26, 2026 | | **Airbnb** | [Worker Management with Full-Shift Double Pay](https://www.fastprep.io/problems/airbnb-worker-management-full-shift-grants) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-worker-management-full-shift-grants) | 🆕 Jul 26, 2026 | | **Hudson River Trading** | [Count 2x2 Submatrices by Black Cells](https://www.fastprep.io/problems/hrt-count-black-blocks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hrt-count-black-blocks) | 🆕 Jul 26, 2026 | | **Hudson River Trading** | [Cumulative Unique Bytes](https://www.fastprep.io/problems/hrt-cumulative-unique-bytes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hrt-cumulative-unique-bytes) | 🆕 Jul 26, 2026 | | **Upstart** | [Minimum Absolute Pair Difference](https://www.fastprep.io/problems/upstart-minimum-absolute-pair-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-minimum-absolute-pair-difference) | 🆕 Jul 26, 2026 | | **Upstart** | [Lexicographic Word Frequencies](https://www.fastprep.io/problems/upstart-lexicographic-word-frequencies) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-lexicographic-word-frequencies) | 🆕 Jul 26, 2026 | | **Upstart** | [Sum Multiples of 3, 5, or 7 Below N](https://www.fastprep.io/problems/upstart-sum-multiples-of-three-five-seven) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-sum-multiples-of-three-five-seven) | 🆕 Jul 26, 2026 | | **Upstart** | [Add Drama to Text Groups](https://www.fastprep.io/problems/upstart-add-drama-punctuation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-add-drama-punctuation) | 🆕 Jul 26, 2026 | | **DE Shaw** | [Maximum L1 Distance Between Equal-Length Subarrays](https://www.fastprep.io/problems/deshaw-maximum-l1-distance-equal-length-subarrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-maximum-l1-distance-equal-length-subarrays) | 🆕 Jul 26, 2026 | | **Airbnb** | [Nested List Iterator with Remove](https://www.fastprep.io/problems/airbnb-nested-list-iterator-with-remove) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-nested-list-iterator-with-remove) | 🆕 Jul 26, 2026 | | **Citadel** | [Limit Order Book Matching Engine](https://www.fastprep.io/problems/citadel-limit-order-book-matching-engine) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-limit-order-book-matching-engine) | 🆕 Jul 26, 2026 | | **Hudson River Trading** | [Market Data Signal Watcher](https://www.fastprep.io/problems/hudson-river-market-data-signal-watcher) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hudson-river-market-data-signal-watcher) | 🆕 Jul 26, 2026 | | **Databricks** | [Rectangular K-in-a-Row](https://www.fastprep.io/problems/databricks-rectangular-k-in-a-row) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-rectangular-k-in-a-row) | 🆕 Jul 26, 2026 | | **Amazon** | [Shortest Distance on a Circular Bus Route](https://www.fastprep.io/problems/amazon-shortest-distance-circular-bus-route) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-shortest-distance-circular-bus-route) | 🆕 Jul 26, 2026 | | **Databricks** | [Design a Durable Local Event Writer](https://www.fastprep.io/system-design/durable-local-event-writer) | System design | [![Practice][p]](https://www.fastprep.io/system-design/durable-local-event-writer) | 🆕 Jul 26, 2026 | | **Databricks** | [Design a Chat Application Cache Architecture](https://www.fastprep.io/system-design/chat-application-cache-architecture) | System design | [![Practice][p]](https://www.fastprep.io/system-design/chat-application-cache-architecture) | 🆕 Jul 25, 2026 | | **Salesforce** | [Optimal Account Balancing](https://www.fastprep.io/problems/salesforce-optimal-account-balancing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-optimal-account-balancing) | 🆕 Jul 25, 2026 | | **Google** | [Count Sortable Splits](https://www.fastprep.io/problems/google-count-sortable-splits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-count-sortable-splits) | 🆕 Jul 25, 2026 | | **Stripe** | [Rule-Driven Transaction Fraud Detection](https://www.fastprep.io/problems/stripe-rule-driven-transaction-fraud-detection) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-rule-driven-transaction-fraud-detection) | 🆕 Jul 25, 2026 | | **OpenAI** | [Prefix Matrix Products and Autograd](https://www.fastprep.io/problems/openai-prefix-matrix-products-autograd) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-prefix-matrix-products-autograd) | 🆕 Jul 25, 2026 | | **Pinterest** | [Nested Set Structural Equivalence](https://www.fastprep.io/problems/pinterest-nested-set-structural-equivalence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-nested-set-structural-equivalence) | 🆕 Jul 25, 2026 | | **Amazon** | [Global Music Streaming Platform](https://www.fastprep.io/system-design/global-music-streaming-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/global-music-streaming-platform) | 🆕 Jul 25, 2026 | | **Amazon / Postman** | [Social News Feed With Live Engagement](https://www.fastprep.io/system-design/social-news-feed-with-live-engagement) | System design | [![Practice][p]](https://www.fastprep.io/system-design/social-news-feed-with-live-engagement) | 🆕 Jul 25, 2026 | | **Amazon** | [Design File-System Search with Symlink Safety](https://www.fastprep.io/low-level-design/filesystem-search-with-symlink-safety) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/filesystem-search-with-symlink-safety) | 🆕 Jul 25, 2026 | | **TikTok** | [Bubble Explosion](https://www.fastprep.io/problems/tiktok-bubble-explosion) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-bubble-explosion) | 🆕 Jul 25, 2026 | | **TikTok** | [Reconstruct Landmark Journey](https://www.fastprep.io/problems/tiktok-reconstruct-landmark-journey) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-reconstruct-landmark-journey) | 🆕 Jul 25, 2026 | | **TikTok** | [Reverse the Interior of Vowel-Bounded Words](https://www.fastprep.io/problems/tiktok-reverse-interior-of-vowel-words) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-reverse-interior-of-vowel-words) | 🆕 Jul 25, 2026 | | **TikTok** | [Uppercase-Lowercase Difference](https://www.fastprep.io/problems/tiktok-uppercase-lowercase-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-uppercase-lowercase-difference) | 🆕 Jul 25, 2026 | | **Salesforce** | [Longest Increasing Subsequence](https://www.fastprep.io/problems/salesforce-longest-increasing-subsequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-longest-increasing-subsequence) | 🆕 Jul 24, 2026 | | **Salesforce** | [Maximal Square](https://www.fastprep.io/problems/salesforce-maximal-square) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-maximal-square) | 🆕 Jul 24, 2026 | | **MathWorks** | [Beautiful Arrangement](https://www.fastprep.io/problems/mathworks-beautiful-arrangement) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathworks-beautiful-arrangement) | 🆕 Jul 24, 2026 | | **MathWorks** | [Find Minimum Cost to Remove Array Elements](https://www.fastprep.io/problems/mathworks-find-minimum-cost-to-remove-array-elements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathworks-find-minimum-cost-to-remove-array-elements) | 🆕 Jul 24, 2026 | | **Apple** | [Design Task Manager](https://www.fastprep.io/problems/apple-design-task-manager) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-design-task-manager) | 🆕 Jul 24, 2026 | | **Apple** | [Unit Conversion II](https://www.fastprep.io/problems/apple-unit-conversion-ii) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-unit-conversion-ii) | 🆕 Jul 24, 2026 | | **Cresta** | [Feature Flag Evaluation Engine](https://www.fastprep.io/problems/cresta-feature-flag-evaluation-engine) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cresta-feature-flag-evaluation-engine) | 🆕 Jul 24, 2026 | | **MathWorks** | [Group Shifted Strings](https://www.fastprep.io/problems/mathworks-group-shifted-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathworks-group-shifted-strings) | 🆕 Jul 24, 2026 | | **MathWorks** | [Longest Valid Parentheses](https://www.fastprep.io/problems/mathworks-longest-valid-parentheses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathworks-longest-valid-parentheses) | 🆕 Jul 24, 2026 | | **LinkedIn** | [CI/CD Pipeline Orchestration System](https://www.fastprep.io/system-design/ci-cd-pipeline-orchestration-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ci-cd-pipeline-orchestration-system) | 🆕 Jul 24, 2026 | | **Tekion** | [Design a Car Service-Center Booking System](https://www.fastprep.io/system-design/car-service-center-booking) | System design | [![Practice][p]](https://www.fastprep.io/system-design/car-service-center-booking) | 🆕 Jul 24, 2026 | | **MathWorks** | [Design a Product Authentication Platform](https://www.fastprep.io/system-design/product-authentication-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/product-authentication-platform) | 🆕 Jul 24, 2026 | | **Shopify** | [Design a Production-Ready URL Cache Service](https://www.fastprep.io/system-design/production-ready-url-cache-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/production-ready-url-cache-service) | 🆕 Jul 24, 2026 | | **Google** | [Ranked Deals Discovery and Claim Service](https://www.fastprep.io/system-design/ranked-deals-discovery-and-claim-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ranked-deals-discovery-and-claim-service) | 🆕 Jul 24, 2026 | | **Tekion** | [Design a Configurable Logging Framework](https://www.fastprep.io/low-level-design/logging-framework) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/logging-framework) | 🆕 Jul 24, 2026 | | **Capillary Technologies** | [Design a Loyalty-Data Insight Platform](https://www.fastprep.io/system-design/loyalty-data-insight-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/loyalty-data-insight-platform) | 🆕 Jul 24, 2026 | | **Akuna** | [Profitable Project Pairs](https://www.fastprep.io/problems/akuna-profitable-project-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-profitable-project-pairs) | 🆕 Jul 23, 2026 | | **Goldman Sachs** | [Validate Binary Search Tree](https://www.fastprep.io/problems/goldman-sachs-validate-binary-search-tree) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-validate-binary-search-tree) | 🆕 Jul 23, 2026 | | **Visa** | [Maximum Server Processing Time](https://www.fastprep.io/problems/visa-maximum-server-processing-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-maximum-server-processing-time) | 🆕 Jul 23, 2026 | | **Visa** | [Signal Pings](https://www.fastprep.io/problems/visa-signal-pings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-signal-pings) | 🆕 Jul 23, 2026 | | **Visa** | [Sum of Index-Ordered Pair Differences](https://www.fastprep.io/problems/visa-sum-of-index-pair-differences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-sum-of-index-pair-differences) | 🆕 Jul 23, 2026 | | **OnePay** | [Design a Community Chat Platform](https://www.fastprep.io/system-design/community-chat-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/community-chat-platform) | 🆕 Jul 23, 2026 | | **Roblox** | [Design a Like/Unlike Service](https://www.fastprep.io/system-design/like-unlike-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/like-unlike-service) | 🆕 Jul 23, 2026 | | **Cursor** | [Design a Versioned IDE Settings Sync System](https://www.fastprep.io/system-design/versioned-ide-settings-sync) | System design | [![Practice][p]](https://www.fastprep.io/system-design/versioned-ide-settings-sync) | 🆕 Jul 23, 2026 | | **Bloomberg** | [Word Break II](https://www.fastprep.io/problems/bloomberg-word-break-ii) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bloomberg-word-break-ii) | 🆕 Jul 22, 2026 | | **Microsoft** | [Binary String Swap Time](https://www.fastprep.io/problems/microsoft-binary-string-swap-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-binary-string-swap-time) | 🆕 Jul 22, 2026 | | **Microsoft** | [Minimum Effort Task Schedule](https://www.fastprep.io/problems/microsoft-minimum-effort-task-schedule) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-effort-task-schedule) | 🆕 Jul 22, 2026 | | **Tekion** | [Longest Balanced Substring After One Swap](https://www.fastprep.io/problems/tekion-longest-balanced-substring-after-one-swap) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tekion-longest-balanced-substring-after-one-swap) | 🆕 Jul 22, 2026 | | **Amazon** | [Sort an Array with Rotate and Flip](https://www.fastprep.io/problems/amazon-sort-array-with-rotate-and-flip) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-sort-array-with-rotate-and-flip) | 🆕 Jul 22, 2026 | | **Akuna** | [Calculate Portfolio Rebalancing Deltas](https://www.fastprep.io/problems/akuna-portfolio-rebalancing-deltas) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-portfolio-rebalancing-deltas) | 🆕 Jul 22, 2026 | | **Akuna** | [Maximum Label Difference in a Connected Component](https://www.fastprep.io/problems/akuna-maximum-component-label-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-maximum-component-label-difference) | 🆕 Jul 22, 2026 | | **Akuna** | [Minimize Malware Spread by Removing a Node](https://www.fastprep.io/problems/akuna-minimize-malware-spread) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-minimize-malware-spread) | 🆕 Jul 22, 2026 | | **Akuna** | [Sort Array by Frequency](https://www.fastprep.io/problems/akuna-items-sort) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-items-sort) | 🆕 Jul 22, 2026 | | **TikTok** | [Count Access Code Pairs](https://www.fastprep.io/problems/tiktok-count-access-code-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-access-code-pairs) | 🆕 Jul 22, 2026 | | **TikTok** | [Count Key Changes](https://www.fastprep.io/problems/tiktok-count-key-changes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-key-changes) | 🆕 Jul 22, 2026 | | **TikTok** | [Travel Distance on Scooters](https://www.fastprep.io/problems/tiktok-travel-distance-on-scooters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-travel-distance-on-scooters) | 🆕 Jul 22, 2026 | | **TikTok** | [Validate 3x3 Digit Windows](https://www.fastprep.io/problems/tiktok-validate-3x3-digit-windows) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-validate-3x3-digit-windows) | 🆕 Jul 22, 2026 | | **Two Sigma** | [Online No-Intercept Linear Regression](https://www.fastprep.io/problems/two-sigma-online-no-intercept-linear-regression) | Coding | [![Practice][p]](https://www.fastprep.io/problems/two-sigma-online-no-intercept-linear-regression) | 🆕 Jul 22, 2026 | | **Optiver** | [Overheat Prevention Controller](https://www.fastprep.io/problems/optiver-overheat-prevention-controller) | Coding | [![Practice][p]](https://www.fastprep.io/problems/optiver-overheat-prevention-controller) | 🆕 Jul 22, 2026 | | **DRW** | [Last Round for Each Player](https://www.fastprep.io/problems/drw-last-round-for-each-player) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-last-round-for-each-player) | 🆕 Jul 22, 2026 | | **DRW** | [Shortest Compressed Length After Removal](https://www.fastprep.io/problems/drw-shortest-compressed-length-after-removal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-shortest-compressed-length-after-removal) | 🆕 Jul 22, 2026 | | **Amazon / Goldman Sachs** | [Design a Financial Portfolio Dashboard](https://www.fastprep.io/system-design/financial-portfolio-dashboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/financial-portfolio-dashboard) | 🆕 Jul 22, 2026 | | **Databricks** | [Design a Chat Application with Message and Thread Deletion](https://www.fastprep.io/system-design/chat-message-and-thread-deletion) | System design | [![Practice][p]](https://www.fastprep.io/system-design/chat-message-and-thread-deletion) | 🆕 Jul 22, 2026 | | **Amazon** | [Loyal Customers Across Two Days](https://www.fastprep.io/problems/amazon-loyal-customers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-loyal-customers) | 🆕 Jul 21, 2026 | | **Amazon** | [Smallest Number With a Given Digit Sum](https://www.fastprep.io/problems/amazon-smallest-number-with-digit-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-smallest-number-with-digit-sum) | 🆕 Jul 21, 2026 | | **Oracle** | [Merge k Sorted Lists](https://www.fastprep.io/problems/oracle-merge-k-sorted-lists) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-merge-k-sorted-lists) | 🆕 Jul 21, 2026 | | **Amazon** | [Design a Distributed Recurring Workflow Scheduler](https://www.fastprep.io/system-design/distributed-recurring-workflow-scheduler) | System design | [![Practice][p]](https://www.fastprep.io/system-design/distributed-recurring-workflow-scheduler) | 🆕 Jul 21, 2026 | | **Amperity** | [Design a Read-Once Secret Sharing Service](https://www.fastprep.io/system-design/read-once-secret-sharing) | System design | [![Practice][p]](https://www.fastprep.io/system-design/read-once-secret-sharing) | 🆕 Jul 21, 2026 | | **Amazon** | [Design Music Search, Playlists, and Playback](https://www.fastprep.io/low-level-design/amazon-music-search-and-playback) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/amazon-music-search-and-playback) | 🆕 Jul 21, 2026 | | **Airbnb** | [Most Frequent Reduced Digit](https://www.fastprep.io/problems/airbnb-most-frequent-reduced-digit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-most-frequent-reduced-digit) | 🆕 Jul 20, 2026 | | **Airbnb** | [Rectangle Fit Queries](https://www.fastprep.io/problems/airbnb-rectangle-fit-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-rectangle-fit-queries) | 🆕 Jul 20, 2026 | | **Airbnb** | [Robot Final Direction](https://www.fastprep.io/problems/airbnb-robot-final-direction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-robot-final-direction) | 🆕 Jul 20, 2026 | | **Airbnb** | [Robot Inventory Tracking](https://www.fastprep.io/problems/airbnb-robot-inventory-tracking) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-robot-inventory-tracking) | 🆕 Jul 20, 2026 | | **Akuna** | [Communications Handler](https://www.fastprep.io/problems/akuna-communications-handler) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-communications-handler) | 🆕 Jul 20, 2026 | | **Amazon** | [Basic Calculator](https://www.fastprep.io/problems/amazon-basic-calculator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-basic-calculator) | 🆕 Jul 20, 2026 | | **Amazon** | [Distance Between Two Tree Nodes](https://www.fastprep.io/problems/amazon-distance-between-tree-nodes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-distance-between-tree-nodes) | 🆕 Jul 20, 2026 | | **Capital One** | [Format a Newspaper Page](https://www.fastprep.io/problems/capital-one-format-newspaper-page) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-format-newspaper-page) | 🆕 Jul 20, 2026 | | **Akuna** | [Maximum K-Star Sum](https://www.fastprep.io/problems/akuna-maximum-k-star-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-maximum-k-star-sum) | 🆕 Jul 20, 2026 | | **Microsoft** | [Maximum Pipeline Throughput](https://www.fastprep.io/problems/microsoft-maximum-pipeline-throughput) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-pipeline-throughput) | 🆕 Jul 20, 2026 | | **Microsoft** | [Maximum Strong Team Subarray](https://www.fastprep.io/problems/microsoft-maximum-strong-team-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-strong-team-subarray) | 🆕 Jul 20, 2026 | | **PhonePe** | [Luna and the Colorful Socks](https://www.fastprep.io/problems/phonepe-colorful-socks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/phonepe-colorful-socks) | 🆕 Jul 20, 2026 | | **Ramp** | [Design a Real-Time Payment Count Dashboard](https://www.fastprep.io/system-design/real-time-payment-count-dashboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/real-time-payment-count-dashboard) | 🆕 Jul 20, 2026 | | **Meta** | [Design and Implement an In-Memory Tally Service](https://www.fastprep.io/low-level-design/meta-tally-service) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/meta-tally-service) | 🆕 Jul 20, 2026 | | **Assort Health** | [Design a Conversational Flight Search and Booking Agent](https://www.fastprep.io/system-design/conversational-flight-search-and-booking-agent) | System design | [![Practice][p]](https://www.fastprep.io/system-design/conversational-flight-search-and-booking-agent) | 🆕 Jul 20, 2026 | | **Capital One** | [Alternate String Ends](https://www.fastprep.io/problems/capital-one-alternating-string-ends) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-alternating-string-ends) | 🆕 Jul 19, 2026 | | **Capital One** | [Sort Every Matrix Border Layer](https://www.fastprep.io/problems/capital-one-sort-matrix-border-layers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-sort-matrix-border-layers) | 🆕 Jul 19, 2026 | | **Capital One** | [Round-Robin WDL Order](https://www.fastprep.io/problems/capital-one-round-robin-wdl-order) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-round-robin-wdl-order) | 🆕 Jul 19, 2026 | | **Waymo** | [Average or Zero](https://www.fastprep.io/problems/waymo-average-or-zero) | Coding | [![Practice][p]](https://www.fastprep.io/problems/waymo-average-or-zero) | 🆕 Jul 19, 2026 | | **Visa** | [Minimum Score of a Path Between Cities](https://www.fastprep.io/problems/visa-minimum-score-path-between-cities) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-minimum-score-path-between-cities) | Jul 18, 2026 | | **IDFC** | [Smallest Adjacent Concatenation](https://www.fastprep.io/problems/idfc-smallest-adjacent-concatenation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/idfc-smallest-adjacent-concatenation) | Jul 18, 2026 | | **IDFC** | [Minimum Cake Cuts](https://www.fastprep.io/problems/idfc-minimum-cake-cuts) | Coding | [![Practice][p]](https://www.fastprep.io/problems/idfc-minimum-cake-cuts) | Jul 18, 2026 | | **Apple** | [Design a Large JSON Transformation Service](https://www.fastprep.io/system-design/large-json-transformation-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/large-json-transformation-service) | Jul 18, 2026 | | **Pinterest** | [Design a Real-Time Category Leaderboard](https://www.fastprep.io/system-design/real-time-category-leaderboard) | System design | [![Practice][p]](https://www.fastprep.io/system-design/real-time-category-leaderboard) | Jul 18, 2026 | | **Unattributed** | [Design Durable Long-Running Agentic Query Execution](https://www.fastprep.io/system-design/long-running-agentic-query-execution) | System design | [![Practice][p]](https://www.fastprep.io/system-design/long-running-agentic-query-execution) | Jul 18, 2026 | | **Unattributed** | [Design and Implement a Pluggable Notification Rate Limiter](https://www.fastprep.io/low-level-design/pluggable-notification-rate-limiter) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/pluggable-notification-rate-limiter) | Jul 18, 2026 | | **Goldman Sachs** | [Inherited Role Permissions](https://www.fastprep.io/problems/goldman-sachs-role-permissions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-role-permissions) | Jul 17, 2026 | | **Goldman Sachs** | [Root of the Largest Tree](https://www.fastprep.io/problems/goldman-sachs-largest-tree-root) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-largest-tree-root) | Jul 17, 2026 | | **Uber** | [Design a Driver Payout System](https://www.fastprep.io/system-design/uber-driver-payout) | System design | [![Practice][p]](https://www.fastprep.io/system-design/uber-driver-payout) | Jul 17, 2026 | | **Microsoft** | [Design a Real-Time Multiplayer Game](https://www.fastprep.io/system-design/real-time-multiplayer-game) | System design | [![Practice][p]](https://www.fastprep.io/system-design/real-time-multiplayer-game) | Jul 17, 2026 | | **Adobe** | [Design Network-Backed Search Suggestions](https://www.fastprep.io/low-level-design/adobe-network-search-suggestions) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/adobe-network-search-suggestions) | Jul 17, 2026 | | **Amazon** | [Customer Package Delivery Report](https://www.fastprep.io/problems/amazon-customer-package-delivery-report) | SQL | [![Practice][p]](https://www.fastprep.io/problems/amazon-customer-package-delivery-report) | Jul 16, 2026 | | **Microsoft** | [Alphabetically Smallest Palindrome](https://www.fastprep.io/problems/microsoft-alphabetically-smallest-palindrome) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-alphabetically-smallest-palindrome) | Jul 16, 2026 | | **Microsoft** | [Maximum Reward Points](https://www.fastprep.io/problems/microsoft-get-maximum-reward-points) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-get-maximum-reward-points) | Jul 16, 2026 | | **Zomato / Eternal** | [Robot Warehouse Optimization](https://www.fastprep.io/problems/zomato-robot-warehouse-optimization) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zomato-robot-warehouse-optimization) | Jul 16, 2026 | | **Google** | [Count Good Numbers](https://www.fastprep.io/problems/google-count-good-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-count-good-numbers) | Jul 15, 2026 | | **Google** | [Count Element Symbol Decompositions](https://www.fastprep.io/problems/google-count-element-symbol-decompositions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-count-element-symbol-decompositions) | Jul 15, 2026 | | **Google** | [Convert Snake Case to Camel Case](https://www.fastprep.io/problems/google-convert-snake-case-to-camel-case) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-convert-snake-case-to-camel-case) | Jul 15, 2026 | | **Uber** | [Last Truck to Leave the Lane](https://www.fastprep.io/problems/uber-last-truck-to-leave-the-lane) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-last-truck-to-leave-the-lane) | Jul 15, 2026 | | **Citadel** | [Minimum Image Processing Cost](https://www.fastprep.io/problems/citadel-minimum-image-processing-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-minimum-image-processing-cost) | Jul 15, 2026 | | **IBM** | [Count Strictly Increasing Subsequences of Length 3](https://www.fastprep.io/problems/ibm-count-increasing-subsequences-length-three) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-increasing-subsequences-length-three) | Jul 15, 2026 | | **Goldman Sachs** | [Alternating Parity Permutations](https://www.fastprep.io/problems/goldman-sachs-alternating-parity-permutations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-alternating-parity-permutations) | Jul 15, 2026 | | **Arcesium** | [Ordered Payload Release](https://www.fastprep.io/problems/arcesium-ordered-payload-release) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-ordered-payload-release) | Jul 15, 2026 | | **ByteDance** | [Most Frequent Integer with Smaller Tie-Break](https://www.fastprep.io/problems/bytedance-most-frequent-integer-smaller-tie) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-most-frequent-integer-smaller-tie) | Jul 15, 2026 | | **Zomato / Eternal / Amazon** | [Design an Online Ordering Platform](https://www.fastprep.io/system-design/online-ordering-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/online-ordering-platform) | Jul 15, 2026 | | **Headway** | [Vacation Rental Search and Booking](https://www.fastprep.io/system-design/vacation-rental-search-and-booking) | System design | [![Practice][p]](https://www.fastprep.io/system-design/vacation-rental-search-and-booking) | Jul 15, 2026 | | **Uber** | [Chain of Command](https://www.fastprep.io/problems/uber-chain-of-command) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-chain-of-command) | Jul 14, 2026 | | **Waymo** | [Design a Global Small-Image Cache](https://www.fastprep.io/system-design/global-small-image-cache) | System design | [![Practice][p]](https://www.fastprep.io/system-design/global-small-image-cache) | Jul 14, 2026 | | **Waymo** | [Design a Matchmaking Service](https://www.fastprep.io/system-design/matchmaking-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/matchmaking-service) | Jul 14, 2026 | | **Salesforce** | [Design a Rental Car Reservation System](https://www.fastprep.io/system-design/rental-car-reservation-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/rental-car-reservation-system) | Jul 14, 2026 | | **Salesforce / Slack** | [Design a Third-Party SaaS Integration Platform](https://www.fastprep.io/system-design/third-party-saas-integration-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/third-party-saas-integration-platform) | Jul 14, 2026 | | **New Relic** | [Product of Array Except Self](https://www.fastprep.io/problems/new-relic-product-of-array-except-self) | Coding | [![Practice][p]](https://www.fastprep.io/problems/new-relic-product-of-array-except-self) | Jul 13, 2026 | | **OpenAI** | [CIDR IPv4 Range Iterator](https://www.fastprep.io/problems/openai-cidr-ipv4-iterator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-cidr-ipv4-iterator) | Jul 12, 2026 | | **OpenAI** | [IPv4 Forward Iterator](https://www.fastprep.io/problems/openai-ipv4-forward-iterator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-ipv4-forward-iterator) | Jul 12, 2026 | | **OpenAI** | [IPv4 Reverse Iterator](https://www.fastprep.io/problems/openai-ipv4-reverse-iterator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-ipv4-reverse-iterator) | Jul 12, 2026 | | **OpenAI** | [Convert an IPv4 Range to Minimal CIDR Blocks](https://www.fastprep.io/problems/openai-ip-range-to-cidr) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-ip-range-to-cidr) | Jul 12, 2026 | | **OpenAI** | [Toy Language Generic Return-Type Inference](https://www.fastprep.io/problems/openai-toy-language-return-type-inference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-toy-language-return-type-inference) | Jul 12, 2026 | | **OpenAI** | [Count Matching Regions in Two Binary Grids](https://www.fastprep.io/problems/openai-count-matching-grid-regions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-count-matching-grid-regions) | Jul 12, 2026 | | **OpenAI** | [Largest Square Subgrid Under a Sum Limit](https://www.fastprep.io/problems/openai-largest-square-subgrid-under-sum-limit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-largest-square-subgrid-under-sum-limit) | Jul 12, 2026 | | **OpenAI** | [Backpropagation Through Sort and Median](https://www.fastprep.io/problems/openai-backpropagation-through-sort-and-median) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-backpropagation-through-sort-and-median) | Jul 12, 2026 | | **Anthropic** | [Repair the Bootloader Program](https://www.fastprep.io/problems/anthropic-repair-bootloader-program) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-repair-bootloader-program) | Jul 12, 2026 | | **Anthropic** | [Normalize a DNS Domain Name](https://www.fastprep.io/problems/anthropic-normalize-dns-name) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-normalize-dns-name) | Jul 12, 2026 | | **Anthropic** | [Worker Management, Part 1: Office Registration](https://www.fastprep.io/problems/anthropic-worker-management-level-1) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-worker-management-level-1) | Jul 12, 2026 | | **Anthropic** | [Worker Management, Part 2: Top Workers](https://www.fastprep.io/problems/anthropic-worker-management-level-2) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-worker-management-level-2) | Jul 12, 2026 | | **Anthropic** | [Worker Management, Part 3: Promotions and Salary](https://www.fastprep.io/problems/anthropic-worker-management-level-3) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-worker-management-level-3) | Jul 12, 2026 | | **Anthropic** | [Worker Management, Part 4: Double-Paid Intervals](https://www.fastprep.io/problems/anthropic-worker-management-level-4) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-worker-management-level-4) | Jul 12, 2026 | | **Anthropic** | [Cloud Storage Compression and Decompression](https://www.fastprep.io/problems/anthropic-cloud-storage-compression) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-cloud-storage-compression) | Jul 12, 2026 | | **Anthropic** | [In-Memory Database Historical Lookup](https://www.fastprep.io/problems/anthropic-in-memory-database-historical-lookup) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-in-memory-database-historical-lookup) | Jul 12, 2026 | | **Anthropic** | [Banking Pending Transfer Acceptance](https://www.fastprep.io/problems/anthropic-banking-pending-transfer-acceptance) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-banking-pending-transfer-acceptance) | Jul 12, 2026 | | **Anthropic** | [Cloud Storage File Versioning](https://www.fastprep.io/problems/anthropic-cloud-storage-file-versioning) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-cloud-storage-file-versioning) | Jul 12, 2026 | | **Anthropic** | [Cloud Storage Prefix Trash and Restore](https://www.fastprep.io/problems/anthropic-cloud-storage-prefix-trash) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-cloud-storage-prefix-trash) | Jul 12, 2026 | | **Amazon** | [Number of Islands II](https://www.fastprep.io/problems/amazon-number-of-islands-ii) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-number-of-islands-ii) | Jul 12, 2026 | | **Amazon** | [Course Schedule](https://www.fastprep.io/problems/amazon-course-schedule) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-course-schedule) | Jul 12, 2026 | | **Amazon** | [Maximum Sum of Heights](https://www.fastprep.io/problems/amazon-maximum-sum-of-heights) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-sum-of-heights) | Jul 12, 2026 | | **Amazon** | [Longest Palindromic Subsequence](https://www.fastprep.io/problems/amazon-longest-palindromic-subsequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-longest-palindromic-subsequence) | Jul 12, 2026 | | **Amazon** | [Group Anagrams](https://www.fastprep.io/problems/amazon-group-anagrams) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-group-anagrams) | Jul 12, 2026 | | **Amazon** | [Maximal Square](https://www.fastprep.io/problems/amazon-maximal-square) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximal-square) | Jul 12, 2026 | | **Amazon** | [Sliding Window Maximum](https://www.fastprep.io/problems/amazon-sliding-window-maximum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-sliding-window-maximum) | Jul 12, 2026 | | **Agoda** | [3Sum](https://www.fastprep.io/problems/agoda-three-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/agoda-three-sum) | Jul 12, 2026 | | **JP Morgan** | [Bitwise XOR Subsequences](https://www.fastprep.io/problems/jpmorgan-bitwise-xor-subsequences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-bitwise-xor-subsequences) | Jul 12, 2026 | | **Stripe** | [Deployment Window Scheduler](https://www.fastprep.io/problems/stripe-deployment-window-scheduler) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-deployment-window-scheduler) | Jul 12, 2026 | | **TikTok** | [Obstacle Placement Queries](https://www.fastprep.io/problems/tiktok-obstacle-placement-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-obstacle-placement-queries) | Jul 12, 2026 | | **Upstart** | [Coordinate Bounding Box](https://www.fastprep.io/problems/upstart-coordinate-bounding-box) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-coordinate-bounding-box) | Jul 12, 2026 | | **Upstart** | [Increase Exclamations and Convert Periods](https://www.fastprep.io/problems/upstart-transform-punctuation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-transform-punctuation) | Jul 12, 2026 | | **Upstart** | [Interleave Equal-Length Strings by Column](https://www.fastprep.io/problems/upstart-interleave-equal-length-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-interleave-equal-length-strings) | Jul 12, 2026 | | **Upstart** | [Scale Ingredient Quantities](https://www.fastprep.io/problems/upstart-scale-ingredient-quantities) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-scale-ingredient-quantities) | Jul 12, 2026 | | **IDFC** | [Find All People With Secret](https://www.fastprep.io/problems/idfc-find-all-people-with-secret) | Coding | [![Practice][p]](https://www.fastprep.io/problems/idfc-find-all-people-with-secret) | Jul 12, 2026 | | **Optiver** | [Power Cell Bank](https://www.fastprep.io/problems/optiver-power-cell-bank) | Coding | [![Practice][p]](https://www.fastprep.io/problems/optiver-power-cell-bank) | Jul 12, 2026 | | **DRW** | [Doctor Appointment Slot Assignment](https://www.fastprep.io/problems/drw-doctor-appointment-slot-assignment) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-doctor-appointment-slot-assignment) | Jul 12, 2026 | | **DRW** | [Maximum Even-Sum Neighboring Pairs](https://www.fastprep.io/problems/drw-maximum-even-sum-neighboring-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-maximum-even-sum-neighboring-pairs) | Jul 12, 2026 | | **DRW** | [Minimize Maximum Group Difference](https://www.fastprep.io/problems/drw-minimize-maximum-group-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-minimize-maximum-group-difference) | Jul 12, 2026 | | **Goldman Sachs** | [Cheapest Flights Within K Stops](https://www.fastprep.io/problems/goldman-sachs-cheapest-flights-within-k-stops) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-cheapest-flights-within-k-stops) | Jul 12, 2026 | | **Goldman Sachs** | [Word Ladder](https://www.fastprep.io/problems/goldman-sachs-word-ladder) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-sachs-word-ladder) | Jul 12, 2026 | | **Rippling** | [Delivery Cost Tracker](https://www.fastprep.io/problems/rippling-delivery-cost-tracker) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-delivery-cost-tracker) | Jul 12, 2026 | | **Rippling** | [Corporate Card Expense Rules](https://www.fastprep.io/problems/rippling-corporate-card-rules-engine) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-corporate-card-rules-engine) | Jul 12, 2026 | | **Rippling** | [Camel Cards](https://www.fastprep.io/problems/rippling-camel-cards) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-camel-cards) | Jul 12, 2026 | | **Rippling** | [Article Vote Tracker](https://www.fastprep.io/problems/rippling-article-vote-tracker) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-article-vote-tracker) | Jul 12, 2026 | | **Rippling** | [Employee Resource Access Management](https://www.fastprep.io/problems/rippling-employee-access-management) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-employee-access-management) | Jul 12, 2026 | | **Rippling** | [Limit an Organization Tree's Height](https://www.fastprep.io/problems/rippling-org-tree-height-control) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-org-tree-height-control) | Jul 12, 2026 | | **Rippling** | [Distributed System Recovery](https://www.fastprep.io/problems/rippling-distributed-system-recovery) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-distributed-system-recovery) | Jul 12, 2026 | | **Rippling** | [Server Upgrade Planning](https://www.fastprep.io/problems/rippling-server-upgrade-planning) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-server-upgrade-planning) | Jul 12, 2026 | | **Rippling** | [Shortest Substring](https://www.fastprep.io/problems/rippling-shortest-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-shortest-substring) | Jul 12, 2026 | | **Rippling** | [Song Play Analytics](https://www.fastprep.io/problems/rippling-song-play-analytics) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-song-play-analytics) | Jul 12, 2026 | | **Rippling** | [Lexicographically Minimum Stack Encryption](https://www.fastprep.io/problems/rippling-lexicographically-minimum-encryption) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-lexicographically-minimum-encryption) | Jul 12, 2026 | | **Rippling** | [Minimum Account Settlements](https://www.fastprep.io/problems/rippling-minimum-account-settlements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-minimum-account-settlements) | Jul 12, 2026 | | **Rippling** | [Matrix Region Sum](https://www.fastprep.io/problems/rippling-matrix-block-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-matrix-block-sum) | Jul 12, 2026 | | **Rippling** | [Maximum XOR Elimination Score](https://www.fastprep.io/problems/rippling-maximum-xor-elimination-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-maximum-xor-elimination-score) | Jul 12, 2026 | | **Rippling** | [Prime Tree City Labelings](https://www.fastprep.io/problems/rippling-prime-tree-labelings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rippling-prime-tree-labelings) | Jul 12, 2026 | | **Zomato / Eternal** | [Jump Game IV](https://www.fastprep.io/problems/zomato-jump-game-iv) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zomato-jump-game-iv) | Jul 12, 2026 | | **IndiaMART** | [Reverse a String](https://www.fastprep.io/problems/indiamart-reverse-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/indiamart-reverse-string) | Jul 12, 2026 | | **Moody's** | [Longest Subarray with At Most Two Distinct Values](https://www.fastprep.io/problems/moodys-longest-subarray-at-most-two-distinct) | Coding | [![Practice][p]](https://www.fastprep.io/problems/moodys-longest-subarray-at-most-two-distinct) | Jul 12, 2026 | | **MulticoreWare** | [Minimum Coin Change](https://www.fastprep.io/problems/multicoreware-minimum-coin-change) | Coding | [![Practice][p]](https://www.fastprep.io/problems/multicoreware-minimum-coin-change) | Jul 12, 2026 | | **MulticoreWare** | [Second Distinct Largest Element](https://www.fastprep.io/problems/multicoreware-second-distinct-largest-element) | Coding | [![Practice][p]](https://www.fastprep.io/problems/multicoreware-second-distinct-largest-element) | Jul 12, 2026 | | **Shipsy** | [Largest Rectangle in Histogram](https://www.fastprep.io/problems/shipsy-largest-rectangle-in-histogram) | Coding | [![Practice][p]](https://www.fastprep.io/problems/shipsy-largest-rectangle-in-histogram) | Jul 12, 2026 | | **Stryker** | [Squares of a Sorted Array](https://www.fastprep.io/problems/stryker-squares-of-a-sorted-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stryker-squares-of-a-sorted-array) | Jul 12, 2026 | | **Hive** | [Validate a Directed Edge Addition](https://www.fastprep.io/problems/hive-validate-directed-edge-addition) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hive-validate-directed-edge-addition) | Jul 12, 2026 | | **Robinhood** | [Word Frequency in a Large Text](https://www.fastprep.io/problems/robinhood-word-frequency-in-large-text) | Coding | [![Practice][p]](https://www.fastprep.io/problems/robinhood-word-frequency-in-large-text) | Jul 12, 2026 | | **Target** | [Minimum Edit-Distance String for Each Query](https://www.fastprep.io/problems/target-minimum-edit-distance-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/target-minimum-edit-distance-string) | Jul 11, 2026 | | **Target** | [Count Lucky Numbers in a Range](https://www.fastprep.io/problems/target-lucky-numbers-floor-square-root) | Coding | [![Practice][p]](https://www.fastprep.io/problems/target-lucky-numbers-floor-square-root) | Jul 11, 2026 | | **Target** | [First-Available Seat Booking](https://www.fastprep.io/problems/target-first-available-seat-booking) | Coding | [![Practice][p]](https://www.fastprep.io/problems/target-first-available-seat-booking) | Jul 11, 2026 | | **OpenAI** | [Memory Allocator](https://www.fastprep.io/problems/openai-memory-allocator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-memory-allocator) | Jul 10, 2026 | | **OpenAI** | [Message Event Aggregation](https://www.fastprep.io/problems/openai-message-event-aggregation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-message-event-aggregation) | Jul 10, 2026 | | **OpenAI** | [Streaming Entropy, Part 1: Batch Entropy](https://www.fastprep.io/problems/openai-streaming-entropy-part-1) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-streaming-entropy-part-1) | Jul 10, 2026 | | **OpenAI** | [Streaming Entropy, Part 2: Numerically Stable Entropy](https://www.fastprep.io/problems/openai-streaming-entropy-part-2) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-streaming-entropy-part-2) | Jul 10, 2026 | | **OpenAI** | [Streaming Entropy, Part 3: Block-wise Entropy](https://www.fastprep.io/problems/openai-streaming-entropy-part-3) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-streaming-entropy-part-3) | Jul 10, 2026 | | **OpenAI** | [Streaming Entropy, Part 4: Stable Streaming Entropy](https://www.fastprep.io/problems/openai-streaming-entropy-part-4) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-streaming-entropy-part-4) | Jul 10, 2026 | | **OpenAI** | [Versioned Social Network](https://www.fastprep.io/problems/openai-versioned-social-network) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-versioned-social-network) | Jul 10, 2026 | | **Anthropic** | [Banking System, Part 1: Accounts and Transfers](https://www.fastprep.io/problems/anthropic-banking-system-part-1) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-banking-system-part-1) | Jul 10, 2026 | | **Anthropic** | [Banking System, Part 2: Top Spenders](https://www.fastprep.io/problems/anthropic-banking-system-part-2) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-banking-system-part-2) | Jul 10, 2026 | | **Anthropic** | [Banking System, Part 3: Scheduled Payments](https://www.fastprep.io/problems/anthropic-banking-system-part-3) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-banking-system-part-3) | Jul 10, 2026 | | **Anthropic** | [Banking System, Part 4: Merging and Balance History](https://www.fastprep.io/problems/anthropic-banking-system-part-4) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-banking-system-part-4) | Jul 10, 2026 | | **Amazon** | [Number of Atoms](https://www.fastprep.io/problems/amazon-number-of-atoms) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-number-of-atoms) | Jul 10, 2026 | | **Amazon** | [Minimum Redistribution Cost](https://www.fastprep.io/problems/amazon-minimum-redistribution-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-redistribution-cost) | Jul 10, 2026 | | **Amazon** | [Domain Weight Calculation](https://www.fastprep.io/problems/amazon-domain-weight-calculation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-domain-weight-calculation) | Jul 10, 2026 | | **Amazon** | [Minimum Contiguous Replacements](https://www.fastprep.io/problems/amazon-minimum-contiguous-replacements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-contiguous-replacements) | Jul 10, 2026 | | **Walmart** | [K-Capable Model Costs](https://www.fastprep.io/problems/walmart-k-capable-model-costs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/walmart-k-capable-model-costs) | Jul 10, 2026 | | **Google** | [Ad Rotation Scheduler With Cooldown](https://www.fastprep.io/problems/google-ad-rotation-scheduler-with-cooldown) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-ad-rotation-scheduler-with-cooldown) | Jul 10, 2026 | | **Google** | [Consolidated On-Call Rotations](https://www.fastprep.io/problems/google-consolidated-on-call-rotations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-consolidated-on-call-rotations) | Jul 10, 2026 | | **Google** | [Count Connected Point Clusters](https://www.fastprep.io/problems/google-count-connected-point-clusters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-count-connected-point-clusters) | Jul 10, 2026 | | **Google** | [Longest Target Run After Replacements](https://www.fastprep.io/problems/google-longest-target-run-after-replacements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-longest-target-run-after-replacements) | Jul 10, 2026 | | **Hudson River Trading** | [Backtick Identifier Converter](https://www.fastprep.io/problems/hrt-backtick-identifier-converter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hrt-backtick-identifier-converter) | Jul 10, 2026 | | **Stripe** | [Directly Linked Users](https://www.fastprep.io/problems/stripe-directly-linked-users) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-directly-linked-users) | Jul 10, 2026 | | **Stripe** | [Fraud Ring Size](https://www.fastprep.io/problems/stripe-fraud-ring-size) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-fraud-ring-size) | Jul 10, 2026 | | **Stripe** | [Risky Fraud Ring](https://www.fastprep.io/problems/stripe-risky-fraud-ring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-risky-fraud-ring) | Jul 10, 2026 | | **Two Sigma** | [Balanced Split String with Wildcards](https://www.fastprep.io/problems/two-sigma-balanced-split-string-with-wildcards) | Coding | [![Practice][p]](https://www.fastprep.io/problems/two-sigma-balanced-split-string-with-wildcards) | Jul 10, 2026 | | **Two Sigma** | [Closest Color](https://www.fastprep.io/problems/two-sigma-closest-color) | Coding | [![Practice][p]](https://www.fastprep.io/problems/two-sigma-closest-color) | Jul 10, 2026 | | **Visa** | [Planning Production](https://www.fastprep.io/problems/visa-planning-production) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-planning-production) | Jul 10, 2026 | | **Visa** | [Subarray Sum](https://www.fastprep.io/problems/visa-subarray-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-subarray-sum) | Jul 10, 2026 | | **Optiver** | [Construct Binary Tree S-Expression](https://www.fastprep.io/problems/optiver-construct-binary-tree-s-expression) | Coding | [![Practice][p]](https://www.fastprep.io/problems/optiver-construct-binary-tree-s-expression) | Jul 10, 2026 | | **TCS** | [Array Rank Transform](https://www.fastprep.io/problems/tcs-array-rank-transform) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tcs-array-rank-transform) | Jul 10, 2026 | | **Codeium** | [Biggest Connected Component](https://www.fastprep.io/problems/codeium-biggest-connected-component) | Coding | [![Practice][p]](https://www.fastprep.io/problems/codeium-biggest-connected-component) | Jul 10, 2026 | | **Flexport** | [Choose the Next Hidden-Word Guess](https://www.fastprep.io/problems/flexport-next-word-guess) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-next-word-guess) | Jul 10, 2026 | | **Apple** | [Phone Directory](https://www.fastprep.io/problems/apple-phone-directory) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-phone-directory) | Jul 10, 2026 | | **Okta** | [CD Rental System](https://www.fastprep.io/problems/okta-cd-rental-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/okta-cd-rental-system) | Jul 10, 2026 | | **Omnissa** | [Longest Substring Without Repeating Characters](https://www.fastprep.io/problems/omnissa-longest-substring-without-repeating-characters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/omnissa-longest-substring-without-repeating-characters) | Jul 09, 2026 | | **Omnissa** | [Rotate Array Right](https://www.fastprep.io/problems/omnissa-rotate-array-right) | Coding | [![Practice][p]](https://www.fastprep.io/problems/omnissa-rotate-array-right) | Jul 09, 2026 | | **Spotnana** | [All OOne Operations](https://www.fastprep.io/problems/spotnana-all-oone-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/spotnana-all-oone-operations) | Jul 09, 2026 | | **Rupeek** | [Trapping Rain Water](https://www.fastprep.io/problems/rupeek-trapping-rain-water) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rupeek-trapping-rain-water) | Jul 08, 2026 | | **OpenAI** | [DSA Round: Maximum Score Grid Path](https://www.fastprep.io/problems/openai-dsa-round-maximum-score-grid-path) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-dsa-round-maximum-score-grid-path) | Jul 08, 2026 | | **Amazon** | [Closest Version Date](https://www.fastprep.io/problems/amazon-closest-version-date) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-closest-version-date) | Jul 08, 2026 | | **Amazon** | [Maximum Concurrent Processes (Bar Raiser Round)](https://www.fastprep.io/problems/amazon-max-concurrent-processes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-max-concurrent-processes) | Jul 08, 2026 | | **Amazon** | [Package Dependency Order](https://www.fastprep.io/problems/amazon-package-dependency-order) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-package-dependency-order) | Jul 08, 2026 | | **Scale AI** | [Task Scheduler with Dependencies](https://www.fastprep.io/problems/scale-ai-task-scheduler-with-dependencies) | Coding | [![Practice][p]](https://www.fastprep.io/problems/scale-ai-task-scheduler-with-dependencies) | Jul 08, 2026 | | **Salesforce** | [ATM Queue Exit Order](https://www.fastprep.io/problems/salesforce-atm-queue) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-atm-queue) | Jul 08, 2026 | | **Salesforce** | [Good Ways to Split an Array](https://www.fastprep.io/problems/salesforce-good-ways-to-split-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-good-ways-to-split-array) | Jul 08, 2026 | | **Salesforce** | [Generate Seen Binary Strings](https://www.fastprep.io/problems/salesforce-generate-seen-binary-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-generate-seen-binary-strings) | Jul 08, 2026 | | **Salesforce** | [Update Pod Counts From Logs](https://www.fastprep.io/problems/salesforce-update-pod-counts-from-logs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-update-pod-counts-from-logs) | Jul 08, 2026 | | **Agoda** | [Feasibility of Printing Within Given Days](https://www.fastprep.io/problems/agoda-printing-within-days) | Coding | [![Practice][p]](https://www.fastprep.io/problems/agoda-printing-within-days) | Jul 08, 2026 | | **Agoda** | [Minimum Daily Printing Limit](https://www.fastprep.io/problems/agoda-minimum-daily-printing-limit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/agoda-minimum-daily-printing-limit) | Jul 08, 2026 | | **Google** | [String Pattern Replacement](https://www.fastprep.io/problems/google-string-pattern-replacement) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-string-pattern-replacement) | Jul 08, 2026 | | **Google** | [Template Variable Expansion](https://www.fastprep.io/problems/google-template-variable-expansion) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-template-variable-expansion) | Jul 08, 2026 | | **Meta** | [Highest Rating Price Ratio](https://www.fastprep.io/problems/meta-highest-rating-price-ratio) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-highest-rating-price-ratio) | Jul 08, 2026 | | **Snowflake** | [Closest Target Character](https://www.fastprep.io/problems/snowflake-closest-target-character) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-closest-target-character) | Jul 08, 2026 | | **Point72** | [Test the Hypothesis](https://www.fastprep.io/problems/point72-test-the-hypothesis) | Coding | [![Practice][p]](https://www.fastprep.io/problems/point72-test-the-hypothesis) | Jul 08, 2026 | | **DE Shaw** | [Minimum Frames for Equal Chunks](https://www.fastprep.io/problems/deshaw-minimum-frames-for-equal-chunks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-minimum-frames-for-equal-chunks) | Jul 08, 2026 | | **DE Shaw** | [Non-Alternating Binary Partitions](https://www.fastprep.io/problems/deshaw-non-alternating-binary-partitions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-non-alternating-binary-partitions) | Jul 08, 2026 | | **Sofi** | [Reachable Nodes in a Directed Graph](https://www.fastprep.io/problems/sofi-reachable-nodes-in-a-directed-graph) | Coding | [![Practice][p]](https://www.fastprep.io/problems/sofi-reachable-nodes-in-a-directed-graph) | Jul 08, 2026 | | **Mercor** | [Top K With a Deterministically Noisy Comparator (MLE)](https://www.fastprep.io/problems/mercor-top-k-with-deterministically-noisy-comparator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mercor-top-k-with-deterministically-noisy-comparator) | Jul 08, 2026 | | **Reddit** | [Reconstruct Billing Status](https://www.fastprep.io/problems/reddit-reconstruct-billing-status) | Coding | [![Practice][p]](https://www.fastprep.io/problems/reddit-reconstruct-billing-status) | Jul 08, 2026 | | **Apple** | [Product Except Self With Zeros](https://www.fastprep.io/problems/apple-product-except-self-with-zeros) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-product-except-self-with-zeros) | Jul 08, 2026 | | **Apple** | [Subset Sum Possible](https://www.fastprep.io/problems/apple-subset-sum-possible) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-subset-sum-possible) | Jul 08, 2026 | | **Apple** | [Validate Completed Sudoku](https://www.fastprep.io/problems/apple-validate-completed-sudoku) | Coding | [![Practice][p]](https://www.fastprep.io/problems/apple-validate-completed-sudoku) | Jul 08, 2026 | | **Figma** | [Rich Text Parser Part 3 (Depth Tokens)](https://www.fastprep.io/problems/figma-rich-text-parser) | Coding | [![Practice][p]](https://www.fastprep.io/problems/figma-rich-text-parser) | Jul 08, 2026 | | **Zomato / Eternal** | [Flipping Matrix](https://www.fastprep.io/problems/zomato-flipping-matrix) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zomato-flipping-matrix) | Jul 08, 2026 | | **Zomato / Eternal** | [Special Keyboard](https://www.fastprep.io/problems/zomato-special-keyboard) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zomato-special-keyboard) | Jul 08, 2026 | | **NatWest** | [Remove Duplicate Characters](https://www.fastprep.io/problems/natwest-remove-duplicate-characters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/natwest-remove-duplicate-characters) | Jul 08, 2026 | | **NatWest** | [Sum Elements at Even Indices](https://www.fastprep.io/problems/natwest-even-index-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/natwest-even-index-sum) | Jul 08, 2026 | | **Safe Security** | [Maximum Subarray Sum](https://www.fastprep.io/problems/safe-security-maximum-subarray-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/safe-security-maximum-subarray-sum) | Jul 08, 2026 | | **Blinkit** | [Unique Supersequence Merge](https://www.fastprep.io/problems/blinkit-unique-supersequence-merge) | Coding | [![Practice][p]](https://www.fastprep.io/problems/blinkit-unique-supersequence-merge) | Jul 08, 2026 | | **Amazon** | [Merge Sorted Array](https://www.fastprep.io/problems/amazon-merge-sorted-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-merge-sorted-array) | Jul 07, 2026 | | **PhonePe** | [Count Bowl Subarrays](https://www.fastprep.io/problems/phonepe-count-bowl-subarrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/phonepe-count-bowl-subarrays) | Jul 07, 2026 | | **PhonePe** | [Reconstruct Itinerary](https://www.fastprep.io/problems/phonepe-reconstruct-itinerary) | Coding | [![Practice][p]](https://www.fastprep.io/problems/phonepe-reconstruct-itinerary) | Jul 07, 2026 | | **Amazon** | [Design an Online Code Compiler](https://www.fastprep.io/system-design/online-code-compiler) | System design | [![Practice][p]](https://www.fastprep.io/system-design/online-code-compiler) | Jul 05, 2026 | | **Amazon** | [Permutation Sorter](https://www.fastprep.io/problems/amazon-permutation-sorter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-permutation-sorter) | Jul 03, 2026 | | **Amazon** | [Maximum Product New Rating](https://www.fastprep.io/problems/1.amazon-maximum-product-new-rating) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-maximum-product-new-rating) | Jul 03, 2026 | | **Amazon** | [Maximum Final Value](https://www.fastprep.io/problems/1.amazon-maximum-final) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-maximum-final) | Jul 03, 2026 | | **Amazon** | [Get Max Servers](https://www.fastprep.io/problems/amazon-find-maximum-number-of-servers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-maximum-number-of-servers) | Jul 03, 2026 | | **McKinsey** | [Predicting the S&P 500 Index](https://www.fastprep.io/problems/mckinsey-predicting-the-sp-500-index) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mckinsey-predicting-the-sp-500-index) | Jul 03, 2026 | | **QRT** | [Array Nullification](https://www.fastprep.io/problems/qrt-array-nullification) | Coding | [![Practice][p]](https://www.fastprep.io/problems/qrt-array-nullification) | Jul 03, 2026 | | **QRT** | [Keep Them Apart](https://www.fastprep.io/problems/qrt-keep-them-apart) | Coding | [![Practice][p]](https://www.fastprep.io/problems/qrt-keep-them-apart) | Jul 03, 2026 | | **Snowflake** | [Minimum Height](https://www.fastprep.io/problems/snowflake-minimum-height) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-minimum-height) | Jul 03, 2026 | | **IBM** | [Query Type Frequency Window](https://www.fastprep.io/problems/ibm-query-type-frequency-window) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-query-type-frequency-window) | Jul 03, 2026 | | **IBM** | [Maximum Requests in a Time Window](https://www.fastprep.io/problems/ibm-maximum-requests-window) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-maximum-requests-window) | Jul 03, 2026 | | **IBM** | [Minimum Number of Non-Empty Disjoint Segments](https://www.fastprep.io/problems/ibm-minimum-disjoint-segments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-minimum-disjoint-segments) | Jul 03, 2026 | | **Nvidia** | [Governed SQL Generation Chatbot](https://www.fastprep.io/system-design/governed-sql-generation-chatbot) | System design | [![Practice][p]](https://www.fastprep.io/system-design/governed-sql-generation-chatbot) | Jul 02, 2026 | | **Nvidia** | [GPU Telemetry Collection and Analytics Platform](https://www.fastprep.io/system-design/gpu-telemetry-collection-and-analytics-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/gpu-telemetry-collection-and-analytics-platform) | Jul 02, 2026 | | **Baseten** | [Ingest and Structure Historical Pod Alerts](https://www.fastprep.io/system-design/ingest-and-structure-historical-pod-alerts) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ingest-and-structure-historical-pod-alerts) | Jul 02, 2026 | | **Point72** | [Get Triplet Count](https://www.fastprep.io/problems/point72-get-triplet-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/point72-get-triplet-count) | Jul 02, 2026 | | **Point72** | [Internet Service Provider Monthly Report](https://www.fastprep.io/problems/point72-internet-service-provider-monthly-report) | SQL | [![Practice][p]](https://www.fastprep.io/problems/point72-internet-service-provider-monthly-report) | Jul 02, 2026 | | **Point72** | [Server Selection](https://www.fastprep.io/problems/point72-server-selection) | Coding | [![Practice][p]](https://www.fastprep.io/problems/point72-server-selection) | Jul 02, 2026 | | **Amazon** | [Feasible Indices After Prefix/Suffix Reduction](https://www.fastprep.io/problems/amazon-feasible-indices-after-prefix-suffix-reduction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-feasible-indices-after-prefix-suffix-reduction) | Jun 30, 2026 | | **Snowflake** | [Simple Array Rotation Game](https://www.fastprep.io/problems/snowflake-simple-array-rotation-game) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-simple-array-rotation-game) | Jun 30, 2026 | | **Microsoft** | [XOR Multiplication](https://www.fastprep.io/problems/microsoft-xor-multiplication) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-xor-multiplication) | Jun 30, 2026 | | **Microsoft** | [Neural Network Subnetwork Strength](https://www.fastprep.io/problems/microsoft-neural-network-subnetwork-strength) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-neural-network-subnetwork-strength) | Jun 30, 2026 | | **Amazon** | [Count Distinct Domino Colorings](https://www.fastprep.io/problems/amazon-count-distinct-domino-colorings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-distinct-domino-colorings) | Jun 29, 2026 | | **Amazon** | [Frequently Bought Together](https://www.fastprep.io/problems/amazon-frequently-bought-together) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-frequently-bought-together) | Jun 29, 2026 | | **Amazon** | [Souvenir Shop Purchases](https://www.fastprep.io/problems/amazon-souvenir-shop-purchases) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-souvenir-shop-purchases) | Jun 29, 2026 | | **McKinsey** | [Count Repeated Request IDs](https://www.fastprep.io/problems/mckinsey-count-repeated-request-ids) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mckinsey-count-repeated-request-ids) | Jun 29, 2026 | | **Salesforce** | [Final Pod Counts After Logs](https://www.fastprep.io/problems/salesforce-final-pod-counts-after-logs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-final-pod-counts-after-logs) | Jun 29, 2026 | | **Salesforce** | [Minimum Removals to Balance Array](https://www.fastprep.io/problems/salesforce-minimum-removals-to-balance-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-minimum-removals-to-balance-array) | Jun 29, 2026 | | **Uber** | [Minimum Operations To Reduce To Zero](https://www.fastprep.io/problems/uber-minimum-operations-to-reduce-to-zero) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-operations-to-reduce-to-zero) | Jun 29, 2026 | | **Uber** | [Shopkeeper Final Price](https://www.fastprep.io/problems/uber-shopkeeper-final-price) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-shopkeeper-final-price) | Jun 29, 2026 | | **TikTok** | [Check Even-Position Monotonicity](https://www.fastprep.io/problems/tiktok-check-even-position-monotonicity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-check-even-position-monotonicity) | Jun 29, 2026 | | **TikTok** | [Construct WDL String](https://www.fastprep.io/problems/tiktok-construct-wdl-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-construct-wdl-string) | Jun 29, 2026 | | **Two Sigma** | [Linear Interpolator](https://www.fastprep.io/problems/two-sigma-linear-interpolator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/two-sigma-linear-interpolator) | Jun 29, 2026 | | **IBM** | [Request Retry Count](https://www.fastprep.io/problems/ibm-request-retry-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-request-retry-count) | Jun 29, 2026 | | **Microsoft** | [Maximum Escape Game Score](https://www.fastprep.io/problems/microsoft-maximum-escape-game-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-escape-game-score) | Jun 29, 2026 | | **Microsoft** | [Minimum Cost K-Capable Models](https://www.fastprep.io/problems/microsoft-minimum-cost-k-capable-models) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-cost-k-capable-models) | Jun 29, 2026 | | **Microsoft** | [Unique Difference Pattern](https://www.fastprep.io/problems/microsoft-unique-difference-pattern) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-unique-difference-pattern) | Jun 29, 2026 | | **Goldman Sachs** | [Valid Binary Prefix](https://www.fastprep.io/problems/goldman-valid-binary-prefix) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-valid-binary-prefix) | Jun 29, 2026 | | **Expedia** | [Maximum Team Size](https://www.fastprep.io/problems/expedia-maximum-team-size) | Coding | [![Practice][p]](https://www.fastprep.io/problems/expedia-maximum-team-size) | Jun 29, 2026 | | **SeekOut** | [Merge Intervals](https://www.fastprep.io/problems/seekout-merge-intervals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/seekout-merge-intervals) | Jun 27, 2026 | | **Amazon** | [Repair Workflow Team Editing and Deletion](https://www.fastprep.io/project-coding/amazon-repair-workflow-teams) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/amazon-repair-workflow-teams) | Jun 25, 2026 | | **ByteDance** | [Test Task Management User Assignments](https://www.fastprep.io/project-coding/bytedance-test-task-management-user-assignments) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/bytedance-test-task-management-user-assignments) | Jun 25, 2026 | | **Amazon** | [Find Minimum Groups](https://www.fastprep.io/problems/amazon-find-minimum-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-groups) | Jun 24, 2026 | | **Google** | [Maximum Coins With Moving Tokens](https://www.fastprep.io/problems/google-maximum-coins-with-moving-tokens) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-maximum-coins-with-moving-tokens) | Jun 24, 2026 | | **Google** | [Maximum Elements With a Common Digit](https://www.fastprep.io/problems/google-maximum-elements-with-a-common-digit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-maximum-elements-with-a-common-digit) | Jun 24, 2026 | | **Snowflake** | [Drawing Edge](https://www.fastprep.io/problems/snowflake-drawing-edge) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-drawing-edge) | Jun 24, 2026 | | **Snowflake** | [Generating Login Codes](https://www.fastprep.io/problems/snowflake-generating-login-codes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-generating-login-codes) | Jun 24, 2026 | | **Microsoft** | [Programmer Strings](https://www.fastprep.io/problems/microsoft-programmer-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-programmer-strings) | Jun 24, 2026 | | **Microsoft** | [Minimum Round Trip Lengths](https://www.fastprep.io/problems/microsoft-minimum-round-trip-lengths) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-round-trip-lengths) | Jun 24, 2026 | | **HSBC** | [Find ID of Soldier](https://www.fastprep.io/problems/hsbc-find-id-of-soldier) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hsbc-find-id-of-soldier) | Jun 21, 2026 | | **HSBC** | [Find Most Frequently Purchased Products](https://www.fastprep.io/problems/hsbc-find-most-frequently-purchased-products) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hsbc-find-most-frequently-purchased-products) | Jun 21, 2026 | | **Goldman Sachs** | [Design a Brokerage Order Processing Domain](https://www.fastprep.io/low-level-design/brokerage-order-processing-domain) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/brokerage-order-processing-domain) | Jun 21, 2026 | | **Amazon** | [Maximum Equal Parts for Prefixes](https://www.fastprep.io/problems/amazon-maximum-equal-parts-for-prefixes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-equal-parts-for-prefixes) | Jun 19, 2026 | | **Meesho** | [Efficient Deployments](https://www.fastprep.io/problems/meesho-efficient-deployments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meesho-efficient-deployments) | Jun 18, 2026 | | **Google** | [Fountain Safety](https://www.fastprep.io/problems/google-fountain-safety) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-fountain-safety) | Jun 17, 2026 | | **Walmart** | [K-Capable Model Selection](https://www.fastprep.io/problems/walmart-k-capable-model-selection) | Coding | [![Practice][p]](https://www.fastprep.io/problems/walmart-k-capable-model-selection) | Jun 16, 2026 | | **Amazon** | [Design a Vending Machine Fleet](https://www.fastprep.io/system-design/vending-machine-fleet) | System design | [![Practice][p]](https://www.fastprep.io/system-design/vending-machine-fleet) | Jun 15, 2026 | | **Mercor** | [Design an External Career Data Analytics Platform](https://www.fastprep.io/system-design/external-career-data-analytics-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/external-career-data-analytics-platform) | Jun 15, 2026 | | **Scale AI** | [Task Processor: Dependencies and Deadlines](https://www.fastprep.io/problems/scale-ai-task-processor-dependencies-deadlines) | Coding | [![Practice][p]](https://www.fastprep.io/problems/scale-ai-task-processor-dependencies-deadlines) | Jun 14, 2026 | | **Shopify** | [Mars Rover Robot Controller](https://www.fastprep.io/problems/shopify-mars-rover-robot-controller) | Coding | [![Practice][p]](https://www.fastprep.io/problems/shopify-mars-rover-robot-controller) | Jun 13, 2026 | | **Salesforce** | [Count Prime Strings](https://www.fastprep.io/problems/salesforce-count-prime-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-count-prime-strings) | Jun 10, 2026 | | **Vanta** | [Implement uniq: Unique Lines](https://www.fastprep.io/problems/vanta-unique-lines-command) | Coding | [![Practice][p]](https://www.fastprep.io/problems/vanta-unique-lines-command) | Jun 10, 2026 | | **Amazon** | [Select Least Resource Tasks](https://www.fastprep.io/problems/amazon-select-least-resource-tasks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-select-least-resource-tasks) | Jun 09, 2026 | | **Amazon** | [Get Smallest Base Segment](https://www.fastprep.io/problems/amazon-get-smallest-base-segment) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-smallest-base-segment) | Jun 09, 2026 | | **Amazon** | [Count Promotional Periods](https://www.fastprep.io/problems/amazon-count-promotional-periods) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-promotional-periods) | Jun 09, 2026 | | **Amazon** | [Get Minimum Amount](https://www.fastprep.io/problems/amazon-get-min-amount) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-amount) | Jun 09, 2026 | | **Agoda** | [Minimum Absolute Difference Pairs](https://www.fastprep.io/problems/agoda-minimum-absolute-difference-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/agoda-minimum-absolute-difference-pairs) | Jun 08, 2026 | | **Amazon** | [Design an E-commerce Recommendation Event Pipeline](https://www.fastprep.io/system-design/ecommerce-recommendation-event-pipeline) | System design | [![Practice][p]](https://www.fastprep.io/system-design/ecommerce-recommendation-event-pipeline) | Jun 05, 2026 | | **Amazon** | [Find Minimum Cost](https://www.fastprep.io/problems/amazon-find-minimum-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-cost) | Jun 04, 2026 | | **JP Morgan** | [About Shipping](https://www.fastprep.io/problems/jpmorgan-about-shipping) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-about-shipping) | Jun 04, 2026 | | **Netflix** | [Topological Sort for Ads Tasks](https://www.fastprep.io/problems/netflix-topological-sort-course-schedule-ads) | Coding | [![Practice][p]](https://www.fastprep.io/problems/netflix-topological-sort-course-schedule-ads) | Jun 04, 2026 | | **Google** | [Consolidate On-Call Rotations](https://www.fastprep.io/problems/google-consolidate-on-call-rotations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-consolidate-on-call-rotations) | Jun 02, 2026 | | **Uber** | [Jump Game with Prime-3 Steps](https://www.fastprep.io/problems/uber-jump-game-prime-3-steps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-jump-game-prime-3-steps) | Jun 01, 2026 | | **Uber** | [Total Palindrome Substring Cost](https://www.fastprep.io/problems/uber-total-palindrome-substring-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-total-palindrome-substring-cost) | Jun 01, 2026 | | **Capital One** | [Count Numbers with Even Number of Digits](https://www.fastprep.io/problems/capital-one-count-even-digit-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-count-even-digit-numbers) | May 31, 2026 | | **Capital One** | [Longest Same-Character Substring](https://www.fastprep.io/problems/capitalone-longest-same-character-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capitalone-longest-same-character-substring) | May 31, 2026 | | **Capital One** | [Count House Segments After Destruction](https://www.fastprep.io/problems/capitalone-count-house-segments-after-destruction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capitalone-count-house-segments-after-destruction) | May 31, 2026 | | **Capital One** | [Laser Robot Safe Path](https://www.fastprep.io/problems/capitalone-laser-robot-safe-path) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capitalone-laser-robot-safe-path) | May 31, 2026 | | **Amazon** | [Lowest Common Ancestor Implemented with Stack](https://www.fastprep.io/problems/amazon-lowest-common-ancestor-implemented-with-stack) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-lowest-common-ancestor-implemented-with-stack) | May 30, 2026 | | **Amazon** | [Design an Amazon Locker System](https://www.fastprep.io/system-design/amazon-locker-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/amazon-locker-system) | May 26, 2026 | | **Akuna** | [Maximum Difference](https://www.fastprep.io/problems/akuna-maximum-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-maximum-difference) | May 25, 2026 | | **Amazon** | [Product Category Group Sizes](https://www.fastprep.io/problems/amazon-product-category-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-product-category-groups) | May 23, 2026 | | **Uber** | [Tournament Rounds by Rank](https://www.fastprep.io/problems/uber-tournament-rounds) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-tournament-rounds) | May 23, 2026 | | **Uber** | [Earliest Time All Users Are Connected](https://www.fastprep.io/problems/uber-earliest-full-connection) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-earliest-full-connection) | May 23, 2026 | | **Meta** | [Merge Three Sorted Arrays](https://www.fastprep.io/problems/meta-merge-three-sorted-arrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-merge-three-sorted-arrays) | May 23, 2026 | | **Amazon** | [Count Connected Components](https://www.fastprep.io/problems/amazon-count-connected-components) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-connected-components) | May 21, 2026 | | **Postman** | [Design a Social Feed and Post Detail Experience](https://www.fastprep.io/system-design/social-feed-and-post-detail-experience) | System design | [![Practice][p]](https://www.fastprep.io/system-design/social-feed-and-post-detail-experience) | May 21, 2026 | | **Google** | [Detonate Bombs with Chain Reactions](https://www.fastprep.io/problems/google-detonate-bombs-chain-reaction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-detonate-bombs-chain-reaction) | May 20, 2026 | | **Google** | [Evaluate a Nested Math Expression](https://www.fastprep.io/problems/google-evaluate-nested-math-expression) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-evaluate-nested-math-expression) | May 20, 2026 | | **Guidewire** | [Minimum Boys Next to Girls](https://www.fastprep.io/problems/guidewire-minimum-boys-next-to-girls) | Coding | [![Practice][p]](https://www.fastprep.io/problems/guidewire-minimum-boys-next-to-girls) | May 20, 2026 | | **Salesforce** | [Run-Length String Compression](https://www.fastprep.io/problems/salesforce-run-length-string-compression) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-run-length-string-compression) | May 19, 2026 | | **Salesforce** | [Time Needed to Rearrange a Binary String](https://www.fastprep.io/problems/salesforce-time-to-rearrange-binary-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-time-to-rearrange-binary-string) | May 19, 2026 | | **Infosys** | [Minimum Path Sum With Grid Switches](https://www.fastprep.io/problems/infosys-minimum-path-sum-with-grid-switches) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-minimum-path-sum-with-grid-switches) | May 19, 2026 | | **Snowflake** | [Effective Role Privileges](https://www.fastprep.io/problems/snowflake-effective-role-privileges) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-effective-role-privileges) | May 19, 2026 | | **Pinterest** | [Assign Pins to the Shortest Column](https://www.fastprep.io/problems/pinterest-assign-pins-to-shortest-column) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-assign-pins-to-shortest-column) | May 18, 2026 | | **OpenAI** | [Grid Infection Spread Until Stable](https://www.fastprep.io/problems/openai-grid-infection-spread-until-stable) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-grid-infection-spread-until-stable) | May 16, 2026 | | **OpenAI** | [Grid Infection with Immune Cells Until Stable](https://www.fastprep.io/problems/openai-grid-infection-with-immune-cells) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-grid-infection-with-immune-cells) | May 16, 2026 | | **OpenAI** | [Chat Event Counts](https://www.fastprep.io/problems/openai-chat-event-counts) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-chat-event-counts) | May 13, 2026 | | **Amazon** | [Unique Pairs With Target Sum](https://www.fastprep.io/problems/amazon-unique-pairs-with-target-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-unique-pairs-with-target-sum) | May 13, 2026 | | **Uber** | [Convex Function Minimization](https://www.fastprep.io/problems/uber-convex-function-minimization) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-convex-function-minimization) | May 13, 2026 | | **Harvey** | [Spreadsheet Formula Evaluator](https://www.fastprep.io/problems/harvey-spreadsheet-formula-evaluator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/harvey-spreadsheet-formula-evaluator) | May 13, 2026 | | **Hudson River Trading** | [Integer to String Without Built-ins](https://www.fastprep.io/problems/hudson-river-trading-integer-to-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hudson-river-trading-integer-to-string) | May 13, 2026 | | **Waymo** | [Decode Repeated Groups](https://www.fastprep.io/problems/waymo-decode-repeated-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/waymo-decode-repeated-groups) | May 13, 2026 | | **Deloitte** | [Seventh Nearest Palindrome](https://www.fastprep.io/problems/deloitte-seventh-nearest-palindrome) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deloitte-seventh-nearest-palindrome) | May 12, 2026 | | **Anduril** | [Design and Implement a Doubly Linked List](https://www.fastprep.io/low-level-design/doubly-linked-list-object-design) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/doubly-linked-list-object-design) | May 12, 2026 | | **Uber** | [Maximal Square Area](https://www.fastprep.io/problems/uber-maximal-square-area) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-maximal-square-area) | May 11, 2026 | | **Snowflake** | [Closest Bathroom / Desk on a Grid](https://www.fastprep.io/problems/snowflake-closest-bathroom-desk-grid) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-closest-bathroom-desk-grid) | May 11, 2026 | | **Snowflake** | [Minimum Index Distance Between Person and Cake](https://www.fastprep.io/problems/snowflake-minimum-index-distance-between-person-and-cake) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-minimum-index-distance-between-person-and-cake) | May 11, 2026 | | **Snowflake** | [Minimum Clicks Between Wiki Pages](https://www.fastprep.io/problems/snowflake-minimum-clicks-between-wiki-pages) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-minimum-clicks-between-wiki-pages) | May 11, 2026 | | **Airbnb** | [Print Sentences as Table](https://www.fastprep.io/problems/airbnb-print-sentences-as-table) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airbnb-print-sentences-as-table) | May 11, 2026 | | **Crusoe** | [Interval Usage with Non-Overlapping Overrides](https://www.fastprep.io/problems/crusoe-interval-usage-with-overrides) | Coding | [![Practice][p]](https://www.fastprep.io/problems/crusoe-interval-usage-with-overrides) | May 11, 2026 | | **DoorDash** | [Maximize Total Profit by Assigning Chefs to Dishes](https://www.fastprep.io/problems/doordash-maximize-total-profit-chef-dish-assignment) | Coding | [![Practice][p]](https://www.fastprep.io/problems/doordash-maximize-total-profit-chef-dish-assignment) | May 11, 2026 | | **Ericsson** | [Pascal's Triangle](https://www.fastprep.io/problems/ericsson-pascals-triangle) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ericsson-pascals-triangle) | May 11, 2026 | | **Ericsson** | [Top K Frequent Elements](https://www.fastprep.io/problems/ericsson-top-k-frequent-elements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ericsson-top-k-frequent-elements) | May 11, 2026 | | **Geico** | [Implement an LRU Cache](https://www.fastprep.io/problems/geico-implement-lru-cache) | Coding | [![Practice][p]](https://www.fastprep.io/problems/geico-implement-lru-cache) | May 11, 2026 | | **TikTok** | [Maximum Candies with At Most Two Types in a Line](https://www.fastprep.io/problems/tiktok-maximum-candies-two-types-line) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-maximum-candies-two-types-line) | May 11, 2026 | | **TikTok** | [LRU Cache with TTL Expiration](https://www.fastprep.io/problems/tiktok-lru-cache-with-ttl-expiration) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-lru-cache-with-ttl-expiration) | May 11, 2026 | | **Upstart** | [Bounding Box from Coordinates](https://www.fastprep.io/problems/upstart-bounding-box-from-coordinates) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-bounding-box-from-coordinates) | May 11, 2026 | | **Upstart** | [Filter by Threshold and Return Name with Max Score](https://www.fastprep.io/problems/upstart-filter-threshold-max-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/upstart-filter-threshold-max-score) | May 11, 2026 | | **Whatnot** | [User Journey Paths](https://www.fastprep.io/problems/whatnot-user-journey-paths) | Coding | [![Practice][p]](https://www.fastprep.io/problems/whatnot-user-journey-paths) | May 11, 2026 | | **Anthropic** | [In-Memory Database with Backup and Restore](https://www.fastprep.io/problems/anthropic-in-memory-database-backup-restore) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-in-memory-database-backup-restore) | May 10, 2026 | | **Capital One** | [Queue Check-in Simulation with Capacity Limit](https://www.fastprep.io/problems/capital-one-queue-check-in-simulation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-queue-check-in-simulation) | May 10, 2026 | | **Capital One** | [Dynamic Wall Building and Range Query](https://www.fastprep.io/problems/capital-one-dynamic-wall-range-query) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-dynamic-wall-range-query) | May 10, 2026 | | **Capital One** | [Cyclic Shift to Strictly Descending Array](https://www.fastprep.io/problems/capital-one-cyclic-shift-strictly-descending) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capital-one-cyclic-shift-strictly-descending) | May 10, 2026 | | **Stripe** | [Email Log Processing, Grouping, and Sorting](https://www.fastprep.io/problems/stripe-email-log-grouping-and-sorting) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-email-log-grouping-and-sorting) | May 10, 2026 | | **Circle** | [Task Management System](https://www.fastprep.io/problems/circle-task-management-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/circle-task-management-system) | May 10, 2026 | | **Circle** | [User Quota Scheduling with Expiring Assignments](https://www.fastprep.io/problems/circle-user-quota-scheduling) | Coding | [![Practice][p]](https://www.fastprep.io/problems/circle-user-quota-scheduling) | May 10, 2026 | | **Point72** | [Lexicographically Smallest String After Substring Operation](https://www.fastprep.io/problems/point72-lexicographically-smallest-substring-operation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/point72-lexicographically-smallest-substring-operation) | May 10, 2026 | | **Two Sigma** | [Piecewise Linear Interpolation and Extrapolation](https://www.fastprep.io/problems/twosigma-piecewise-linear-interpolation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/twosigma-piecewise-linear-interpolation) | May 10, 2026 | | **Intuit** | [Small Business Network: Degrees of Separation](https://www.fastprep.io/problems/intuit-small-business-network-degrees-of-separation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-small-business-network-degrees-of-separation) | May 08, 2026 | | **ByteDance** | [Design an Event Booking and Analytics Platform](https://www.fastprep.io/system-design/event-booking-and-analytics-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/event-booking-and-analytics-platform) | May 07, 2026 | | **OpenAI** | [ChatApp with Bots](https://www.fastprep.io/problems/openai-chatapp-with-bots) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-chatapp-with-bots) | May 05, 2026 | | **OpenAI** | [IP Address to CIDR Blocks](https://www.fastprep.io/problems/openai-ip-address-to-cidr-blocks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-ip-address-to-cidr-blocks) | May 05, 2026 | | **Uber** | [First Unique IP Hitting the Server](https://www.fastprep.io/problems/uber-first-unique-ip-hitting-server) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-first-unique-ip-hitting-server) | May 05, 2026 | | **Roblox** | [Implement a Rate Limiter](https://www.fastprep.io/problems/roblox-implement-rate-limiter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-implement-rate-limiter) | May 05, 2026 | | **Roblox** | [Rate Limit by Multiple Request Fields](https://www.fastprep.io/problems/roblox-rate-limit-by-multiple-request-fields) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-rate-limit-by-multiple-request-fields) | May 05, 2026 | | **Visa** | [Minimum Cost to Select People for Skill Quotas](https://www.fastprep.io/problems/visa-minimum-cost-to-select-people-for-skill-quotas) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-minimum-cost-to-select-people-for-skill-quotas) | May 05, 2026 | | **IDFC** | [Special Binary String](https://www.fastprep.io/problems/idfc-special-binary-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/idfc-special-binary-string) | May 01, 2026 | | **Perplexity AI** | [Design a Personal Finance Aggregation Platform](https://www.fastprep.io/system-design/personal-finance-aggregation-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/personal-finance-aggregation-platform) | May 01, 2026 | | **Amazon** | [Feasible Indices After Reduction](https://www.fastprep.io/problems/amazon-feasible-indices-after-reduction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-feasible-indices-after-reduction) | Apr 30, 2026 | | **Netflix** | [Command Undo Data Structure](https://www.fastprep.io/problems/netflix-command-undo-data-structure) | Coding | [![Practice][p]](https://www.fastprep.io/problems/netflix-command-undo-data-structure) | Apr 30, 2026 | | **Google** | [Shortest Path with Mandatory Waypoint](https://www.fastprep.io/problems/google-shortest-path-with-mandatory-waypoint) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-shortest-path-with-mandatory-waypoint) | Apr 30, 2026 | | **Google** | [Minimum Cars for Rental Requests](https://www.fastprep.io/problems/google-minimum-cars-for-rental-requests) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimum-cars-for-rental-requests) | Apr 30, 2026 | | **Uber** | [First Unique Log Entry](https://www.fastprep.io/problems/uber-first-unique-log-entry) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-first-unique-log-entry) | Apr 30, 2026 | | **Uber** | [Top-K Using a Priority Queue](https://www.fastprep.io/problems/uber-top-k-using-priority-queue) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-top-k-using-priority-queue) | Apr 30, 2026 | | **Stripe** | [Generate Available Time Slots](https://www.fastprep.io/problems/stripe-generate-available-time-slots) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-generate-available-time-slots) | Apr 30, 2026 | | **Applied Intuition** | [KV Store with Nested Transactions](https://www.fastprep.io/problems/applied-intuition-kv-store-nested-transactions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/applied-intuition-kv-store-nested-transactions) | Apr 30, 2026 | | **Citadel** | [Minimum Path Sum to Target in Binary Tree](https://www.fastprep.io/problems/citadel-minimum-path-sum-to-target-in-binary-tree) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-minimum-path-sum-to-target-in-binary-tree) | Apr 30, 2026 | | **Datadog** | [Log Ingestion and Query](https://www.fastprep.io/problems/datadog-log-ingestion-and-query) | Coding | [![Practice][p]](https://www.fastprep.io/problems/datadog-log-ingestion-and-query) | Apr 30, 2026 | | **LinkedIn** | [Count Completed Trips](https://www.fastprep.io/problems/linkedin-count-completed-trips) | Coding | [![Practice][p]](https://www.fastprep.io/problems/linkedin-count-completed-trips) | Apr 30, 2026 | | **Oscar Health** | [Members Lacking Provider Network Access](https://www.fastprep.io/problems/oscar-health-members-lacking-provider-network-access) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oscar-health-members-lacking-provider-network-access) | Apr 30, 2026 | | **Tesla** | [KV Store with Rollback](https://www.fastprep.io/problems/tesla-kv-store-with-rollback) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tesla-kv-store-with-rollback) | Apr 30, 2026 | | **Oura** | [Assign Server Numbers by Type](https://www.fastprep.io/problems/oura-assign-server-numbers-by-type) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oura-assign-server-numbers-by-type) | Apr 28, 2026 | | **Verkada** | [Find Valid IP Addresses](https://www.fastprep.io/problems/verkada-find-valid-ip-addresses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/verkada-find-valid-ip-addresses) | Apr 28, 2026 | | **Visa** | [Maximize Capped Contribution Sum](https://www.fastprep.io/problems/visa-maximize-capped-contribution-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-maximize-capped-contribution-sum) | Apr 27, 2026 | | **Visa** | [Longest Selectable Non-Decreasing Subarray](https://www.fastprep.io/problems/visa-longest-selectable-nondecreasing-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-longest-selectable-nondecreasing-subarray) | Apr 27, 2026 | | **Databricks** | [Find First Anagram Index](https://www.fastprep.io/problems/databricks-find-first-anagram-index) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-find-first-anagram-index) | Apr 27, 2026 | | **Gemini** | [Minimum Fence Painting Operations](https://www.fastprep.io/problems/gemini-minimum-fence-painting-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/gemini-minimum-fence-painting-operations) | Apr 27, 2026 | | **IBM** | [Count Power Products in Range](https://www.fastprep.io/problems/ibm-count-power-products-in-range) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-power-products-in-range) | Apr 26, 2026 | | **IBM** | [Count Descending Subarrays](https://www.fastprep.io/problems/ibm-count-descending-subarrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-descending-subarrays) | Apr 26, 2026 | | **Zoox** | [Design a Robotaxi Teleoperations Analytics Platform](https://www.fastprep.io/system-design/robotaxi-teleoperations-analytics-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/robotaxi-teleoperations-analytics-platform) | Apr 26, 2026 | | **Discord** | [Design a Video Call Analytics Platform](https://www.fastprep.io/system-design/video-call-analytics-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/video-call-analytics-platform) | Apr 26, 2026 | | **Amazon** | [Count Similar String Groups](https://www.fastprep.io/problems/amazon-count-similar-string-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-similar-string-groups) | Apr 25, 2026 | | **Uber** | [Balanced Prefix Sets in a Permutation](https://www.fastprep.io/problems/uber-balanced-prefix-sets-in-permutation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-balanced-prefix-sets-in-permutation) | Apr 25, 2026 | | **Uber** | [Minimum Edge Reversals to Root a Tree](https://www.fastprep.io/problems/uber-minimum-edge-reversals-root) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-edge-reversals-root) | Apr 25, 2026 | | **Amazon** | [Design a Fastag Toll Payment System](https://www.fastprep.io/system-design/fastag-toll-payment-system) | System design | [![Practice][p]](https://www.fastprep.io/system-design/fastag-toll-payment-system) | Apr 25, 2026 | | **Amazon** | [Create Array Generator Service](https://www.fastprep.io/problems/2.amazon-create-array-generator-service) | Coding | [![Practice][p]](https://www.fastprep.io/problems/2.amazon-create-array-generator-service) | Apr 20, 2026 | | **Point72** | [Initial Public Offering](https://www.fastprep.io/problems/point72-initial-public-offering) | Coding | [![Practice][p]](https://www.fastprep.io/problems/point72-initial-public-offering) | Apr 19, 2026 | | **Amazon** | [Get Min Errors](https://www.fastprep.io/problems/amazon-get-min-errors) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-errors) | Apr 16, 2026 | | **Amazon** | [Maximum Score With Non-Adjacent Values](https://www.fastprep.io/problems/amazon-maximum-score-with-non-adjacent-values) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-score-with-non-adjacent-values) | Apr 14, 2026 | | **Amazon** | [Make Value Groups Contiguous](https://www.fastprep.io/problems/amazon-make-value-groups-contiguous) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-make-value-groups-contiguous) | Apr 13, 2026 | | **Superhuman** | [Lost Messages](https://www.fastprep.io/problems/superhuman-lost-messages) | Coding | [![Practice][p]](https://www.fastprep.io/problems/superhuman-lost-messages) | Apr 10, 2026 | | **Superhuman** | [Optimal Transfer](https://www.fastprep.io/problems/superhuman-optimal-transfer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/superhuman-optimal-transfer) | Apr 10, 2026 | | **Superhuman** | [Math Homework](https://www.fastprep.io/problems/superhuman-math-homework) | Coding | [![Practice][p]](https://www.fastprep.io/problems/superhuman-math-homework) | Apr 10, 2026 | | **Amazon** | [Dynamic Kth Largest Queries](https://www.fastprep.io/problems/amazon-dynamic-kth-largest-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-dynamic-kth-largest-queries) | Apr 09, 2026 | | **Amazon** | [Longest Zero Sum Subarray](https://www.fastprep.io/problems/amazon-longest-zero-sum-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-longest-zero-sum-subarray) | Apr 09, 2026 | | **Amazon** | [Maximize Minimum Machine Power](https://www.fastprep.io/problems/amazon-maximize-minimum-machine-power) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximize-minimum-machine-power) | Apr 09, 2026 | | **Amazon** | [Minimum Stick Connection Cost](https://www.fastprep.io/problems/amazon-minimum-stick-connection-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-stick-connection-cost) | Apr 09, 2026 | | **Uber** | [Balanced Permutation Subarrays](https://www.fastprep.io/problems/uber-balanced-permutation-subarrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-balanced-permutation-subarrays) | Apr 09, 2026 | | **Uber** | [Maximum Comfortable Riders](https://www.fastprep.io/problems/uber-maximum-comfortable-riders) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-maximum-comfortable-riders) | Apr 09, 2026 | | **Uber** | [Palindrome Path Queries in a Tree](https://www.fastprep.io/problems/uber-palindrome-path-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-palindrome-path-queries) | Apr 09, 2026 | | **Amazon** | [Maximize Protected City Population](https://www.fastprep.io/problems/amazon-maximize-protected-city-population) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximize-protected-city-population) | Apr 06, 2026 | | **Amazon** | [Minimum Cost to Convert Products to Variant A](https://www.fastprep.io/problems/amazon-minimum-cost-to-convert-products-to-variant-a) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-cost-to-convert-products-to-variant-a) | Apr 06, 2026 | | **Amazon** | [Minimum Preparation Time for Two Handlers](https://www.fastprep.io/problems/amazon-minimum-preparation-time-for-two-handlers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-preparation-time-for-two-handlers) | Apr 06, 2026 | | **Rubrik** | [Minimum Swaps To Binary Palindrome](https://www.fastprep.io/problems/rubrik-minimum-swaps-to-binary-palindrome) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-minimum-swaps-to-binary-palindrome) | Apr 04, 2026 | | **Zorvyn** | [Shortest Path With K Free Edges](https://www.fastprep.io/problems/zorvyn-shortest-path-with-k-free-edges) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zorvyn-shortest-path-with-k-free-edges) | Apr 04, 2026 | | **Cohere** | [Enterprise Research Assistant](https://www.fastprep.io/system-design/enterprise-research-assistant) | System design | [![Practice][p]](https://www.fastprep.io/system-design/enterprise-research-assistant) | Apr 01, 2026 | | **Snowflake** | [String Formation (Also for AI/ML Software Engineer Intern :)](https://www.fastprep.io/problems/num-ways) | Coding | [![Practice][p]](https://www.fastprep.io/problems/num-ways) | Mar 31, 2026 | | **Snowflake** | [Max Element Indexes After Rotations](https://www.fastprep.io/problems/snowflake-max-element-indexes-after-rotations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-max-element-indexes-after-rotations) | Mar 31, 2026 | | **HackerRank** | [Check Permutation Divisible by Eight](https://www.fastprep.io/problems/hackerrank-check-permutation-divisible-by-eight) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hackerrank-check-permutation-divisible-by-eight) | Mar 31, 2026 | | **Microsoft** | [Maximum Data Transfer Time](https://www.fastprep.io/problems/microsoft-maximum-data-transfer-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-data-transfer-time) | Mar 28, 2026 | | **Amazon** | [Sum Max Plus Min After Decrement Operations](https://www.fastprep.io/problems/amazon-sum-max-plus-min-after-decrement-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-sum-max-plus-min-after-decrement-operations) | Mar 25, 2026 | | **Uber** | [Minimum Plate Collection Time](https://www.fastprep.io/problems/uber-minimum-plate-collection-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-plate-collection-time) | Mar 25, 2026 | | **Blackrock** | [Process Scheduling](https://www.fastprep.io/problems/blackrock-process-scheduling) | Coding | [![Practice][p]](https://www.fastprep.io/problems/blackrock-process-scheduling) | Mar 25, 2026 | | **Amazon** | [Make Power Non Decreasing](https://www.fastprep.io/problems/1.amazon-make-power-non-decreasing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-make-power-non-decreasing) | Mar 24, 2026 | | **Amazon** | [Sort Error Codes by Frequency](https://www.fastprep.io/problems/amazon-sort-error-codes-by-frequency) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-sort-error-codes-by-frequency) | Mar 24, 2026 | | **Optiver** | [Days Between](https://www.fastprep.io/problems/optiver-days-between) | Coding | [![Practice][p]](https://www.fastprep.io/problems/optiver-days-between) | Mar 24, 2026 | | **DRW** | [Simplified Tetris Engine](https://www.fastprep.io/problems/drw-simplified-tetris-engine) | Coding | [![Practice][p]](https://www.fastprep.io/problems/drw-simplified-tetris-engine) | Mar 23, 2026 | | **Headlands** | [Disaster Recovery](https://www.fastprep.io/problems/headlands-disaster-recovery) | Coding | [![Practice][p]](https://www.fastprep.io/problems/headlands-disaster-recovery) | Mar 21, 2026 | | **Microsoft** | [Visible Profiles Count](https://www.fastprep.io/problems/microsoft-visible-profiles-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-visible-profiles-count) | Mar 21, 2026 | | **Swiggy** | [First and Last Occurrence](https://www.fastprep.io/problems/swiggy-first-and-last-occurrence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/swiggy-first-and-last-occurrence) | Mar 20, 2026 | | **TCS** | [Gym Fees Calculator](https://www.fastprep.io/problems/tcs-gym-fees-calculator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tcs-gym-fees-calculator) | Mar 20, 2026 | | **Two Sigma** | [Sewer Drainage Partition](https://www.fastprep.io/problems/twosigma-sewer-drainage-partition) | Coding | [![Practice][p]](https://www.fastprep.io/problems/twosigma-sewer-drainage-partition) | Mar 18, 2026 | | **Autodesk** | [Design a Rapid Grocery Ordering Platform](https://www.fastprep.io/system-design/rapid-grocery-ordering-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/rapid-grocery-ordering-platform) | Mar 18, 2026 | | **Salesforce** | [Key Teams in Tree](https://www.fastprep.io/problems/salesforce-key-teams-in-tree) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-key-teams-in-tree) | Mar 15, 2026 | | **Salesforce** | [System Energy Reduction](https://www.fastprep.io/problems/salesforce-system-energy-reduction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-system-energy-reduction) | Mar 15, 2026 | | **Salesforce** | [Update Logs by Symmetric XOR](https://www.fastprep.io/problems/salesforce-update-logs-by-symmetric-xor) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-update-logs-by-symmetric-xor) | Mar 15, 2026 | | **Salesforce** | [Count Palindromic Concatenation Pairs](https://www.fastprep.io/problems/salesforce-count-palindromic-concatenation-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-count-palindromic-concatenation-pairs) | Mar 02, 2026 | | **Microsoft** | [Recover Corrupted Master Page](https://www.fastprep.io/problems/microsoft-recover-corrupted-master-page) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-recover-corrupted-master-page) | Feb 27, 2026 | | **Uber** | [Kth Greater Element Indexes](https://www.fastprep.io/problems/uber-kth-greater-element-indexes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-kth-greater-element-indexes) | Feb 24, 2026 | | **Uber** | [Kth Largest Subarray Bitwise OR](https://www.fastprep.io/problems/uber-kth-largest-subarray-bitwise-or) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-kth-largest-subarray-bitwise-or) | Feb 24, 2026 | | **Uber** | [Minimum Spanning Tree Weight in a Complete Binary Graph](https://www.fastprep.io/problems/uber-minimum-spanning-tree-weight-in-complete-binary-graph) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-spanning-tree-weight-in-complete-binary-graph) | Feb 24, 2026 | | **Uber** | [Balanced Prefix Permutation](https://www.fastprep.io/problems/uber-balanced-prefix-permutation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-balanced-prefix-permutation) | Feb 19, 2026 | | **Uber** | [Minimum Euclidean Plate Collection Time](https://www.fastprep.io/problems/uber-minimum-euclidean-plate-collection-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-euclidean-plate-collection-time) | Feb 19, 2026 | | **Infosys** | [Maximum Subarray Sum After Swaps](https://www.fastprep.io/problems/infosys-maximum-subarray-sum-after-swaps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-maximum-subarray-sum-after-swaps) | Feb 19, 2026 | | **Postman** | [Group Duplicate Files by Content](https://www.fastprep.io/problems/postman-duplicate-files-by-content) | Coding | [![Practice][p]](https://www.fastprep.io/problems/postman-duplicate-files-by-content) | Feb 17, 2026 | | **Salesforce** | [Collect Opportunity Data in a Tree](https://www.fastprep.io/problems/salesforce-collect-opportunity-data-in-a-tree) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-collect-opportunity-data-in-a-tree) | Feb 06, 2026 | | **Salesforce** | [Replace '?' to Avoid Adjacent Duplicates](https://www.fastprep.io/problems/salesforce-replace-question-mark-to-avoid-adjacent-duplicates) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-replace-question-mark-to-avoid-adjacent-duplicates) | Feb 06, 2026 | | **Salesforce** | [Strings With No k Consecutive Identical Characters](https://www.fastprep.io/problems/salesforce-strings-with-no-k-consecutive-identical-characters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-strings-with-no-k-consecutive-identical-characters) | Feb 06, 2026 | | **Amazon** | [Lexicographically Smallest After One Substring Rotation](https://www.fastprep.io/problems/amazon-lexicographically-smallest-after-one-substring-rotation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-lexicographically-smallest-after-one-substring-rotation) | Feb 05, 2026 | | **Uber** | [Binary Tree: Subtree Sum, Maximum Path Sum, and Path Nodes](https://www.fastprep.io/problems/uber-binary-tree-subtree-sum-maximum-path-and-path-nodes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-binary-tree-subtree-sum-maximum-path-and-path-nodes) | Feb 04, 2026 | | **IBM** | [Count Unstable Processes](https://www.fastprep.io/problems/ibm-count-unstable-processes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-unstable-processes) | Feb 03, 2026 | | **IBM** | [Longest Balanced Binary Subarray](https://www.fastprep.io/problems/ibm-longest-balanced-binary-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-longest-balanced-binary-subarray) | Feb 03, 2026 | | **Razorpay** | [Design and Implement an ATM Machine](https://www.fastprep.io/low-level-design/atm-machine-domain) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/atm-machine-domain) | Feb 02, 2026 | | **Amazon** | [Minimum Operations to Sort a Permutation](https://www.fastprep.io/problems/amazon-minimum-operations-to-sort-permutation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-operations-to-sort-permutation) | Jan 30, 2026 | | **Amazon** | [Package Delivery System](https://www.fastprep.io/problems/amazon-package-delivery-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-package-delivery-system) | Jan 24, 2026 | | **Amazon** | [VM Rental Revenue](https://www.fastprep.io/problems/amazon-vm-rental-revenue) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-vm-rental-revenue) | Jan 24, 2026 | | **Amazon** | [Lexicographically Maximum Final Sequence](https://www.fastprep.io/problems/amazon-lexicographically-maximum-final-sequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-lexicographically-maximum-final-sequence) | Jan 24, 2026 | | **JP Morgan** | [Count Dropped Requests](https://www.fastprep.io/problems/jpmorgan-count-dropped-requests) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-count-dropped-requests) | Jan 19, 2026 | | **JP Morgan** | [Generate Table of Contents](https://www.fastprep.io/problems/jpmorgan-generate-table-of-contents) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-generate-table-of-contents) | Jan 19, 2026 | | **Walmart** | [Sort Real Number Strings](https://www.fastprep.io/problems/walmart-sort-real-number-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/walmart-sort-real-number-strings) | Jan 12, 2026 | | **SavantLabs** | [Minutes to Infect Tree](https://www.fastprep.io/problems/savantlabs-minutes-to-infect-tree) | Coding | [![Practice][p]](https://www.fastprep.io/problems/savantlabs-minutes-to-infect-tree) | Jan 12, 2026 | | **Toast** | [Maximum Stock Profit With Time Gap](https://www.fastprep.io/problems/toast-maximum-stock-profit-with-time-gap) | Coding | [![Practice][p]](https://www.fastprep.io/problems/toast-maximum-stock-profit-with-time-gap) | Jan 12, 2026 | | **Amazon** | [Longest Arithmetic Subarray After One Change](https://www.fastprep.io/problems/amazon-longest-arithmetic-subarray-after-one-change) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-longest-arithmetic-subarray-after-one-change) | Jan 06, 2026 | | **Amazon** | [Replace Values and Return Sums](https://www.fastprep.io/problems/amazon-replace-values-and-return-sums) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-replace-values-and-return-sums) | Jan 06, 2026 | | **Google** | [Count Divisible Coin Selections](https://www.fastprep.io/problems/google-count-divisible-coin-selections) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-count-divisible-coin-selections) | Dec 24, 2025 | | **Google** | [Minimum Town Sum Difference](https://www.fastprep.io/problems/google-minimum-town-sum-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimum-town-sum-difference) | Dec 24, 2025 | | **Oracle** | [First Balanced Removal Index](https://www.fastprep.io/problems/oracle-first-balanced-removal-index) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-first-balanced-removal-index) | Dec 22, 2025 | | **Google** | [Reach the End in Time](https://www.fastprep.io/problems/google-reach-the-end-in-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-reach-the-end-in-time) | Dec 20, 2025 | | **Workday** | [Design a Payments and Cards Domain](https://www.fastprep.io/low-level-design/payments-and-cards-domain) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/payments-and-cards-domain) | Dec 18, 2025 | | **HackerRank** | [Ball Passing at Time K](https://www.fastprep.io/problems/hackerrank-ball-passing-at-time-k) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hackerrank-ball-passing-at-time-k) | Dec 17, 2025 | | **HackerRank** | [Longest Equal Binary Subarray](https://www.fastprep.io/problems/hackerrank-longest-equal-binary-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hackerrank-longest-equal-binary-subarray) | Dec 17, 2025 | | **HackerRank** | [Longest Equal Binary Subarray After One Flip](https://www.fastprep.io/problems/hackerrank-longest-equal-binary-subarray-after-one-flip) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hackerrank-longest-equal-binary-subarray-after-one-flip) | Dec 17, 2025 | | **Visa** | [Previous Bus Departure](https://www.fastprep.io/problems/visa-previous-bus-departure) | Coding | [![Practice][p]](https://www.fastprep.io/problems/visa-previous-bus-departure) | Dec 16, 2025 | | **Zopsmart** | [Base36 Square Root](https://www.fastprep.io/problems/zopsmart-base36-square-root) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zopsmart-base36-square-root) | Dec 16, 2025 | | **Zopsmart** | [Minimum Hidden Roman Value](https://www.fastprep.io/problems/zopsmart-minimum-hidden-roman-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zopsmart-minimum-hidden-roman-value) | Dec 16, 2025 | | **Zopsmart** | [Reverse Base36 Number](https://www.fastprep.io/problems/zopsmart-reverse-base36-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zopsmart-reverse-base36-number) | Dec 16, 2025 | | **Amazon** | [Minimum S3 Storage Cost](https://www.fastprep.io/problems/amazon-minimum-s3-storage-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-s3-storage-cost) | Dec 11, 2025 | | **Flipkart** | [Minimized Total Idle Time](https://www.fastprep.io/problems/flipkart-minimized-total-idle-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flipkart-minimized-total-idle-time) | Dec 11, 2025 | | **Sierra** | [Design a Resumable Streaming AI Chat](https://www.fastprep.io/system-design/resumable-streaming-ai-chat) | System design | [![Practice][p]](https://www.fastprep.io/system-design/resumable-streaming-ai-chat) | Nov 24, 2025 | | **BitGo** | [Design and Implement an In-Memory Relational Database Engine](https://www.fastprep.io/low-level-design/in-memory-relational-database-engine) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/in-memory-relational-database-engine) | Nov 23, 2025 | | **HSBC** | [Minimum Markers to Clear Line Segments](https://www.fastprep.io/problems/hsbc-minimum-markers-to-clear-line-segments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hsbc-minimum-markers-to-clear-line-segments) | Nov 19, 2025 | | **MathWorks** | [Balancing Teams](https://www.fastprep.io/problems/mathworks-balancing-teams) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathworks-balancing-teams) | Nov 16, 2025 | | **MathWorks** | [Largest Sub-Grid](https://www.fastprep.io/problems/mathworks-largest-sub-grid) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathworks-largest-sub-grid) | Nov 16, 2025 | | **Two Sigma** | [Calculate y/x using Patch](https://www.fastprep.io/problems/twosigma-calculate-y-over-x) | Coding | [![Practice][p]](https://www.fastprep.io/problems/twosigma-calculate-y-over-x) | Nov 09, 2025 | | **IBM** | [Process Execution Time](https://www.fastprep.io/problems/ibm-process-execution-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-process-execution-time) | Nov 03, 2025 | | **IBM** | [Service Timeout Detection](https://www.fastprep.io/problems/ibm-service-timeout-detection) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-service-timeout-detection) | Nov 03, 2025 | | **Microsoft** | [Distinct Number Line Moves](https://www.fastprep.io/problems/microsoft-distinct-number-line-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-distinct-number-line-moves) | Oct 16, 2025 | | **Goldman Sachs** | [Lock Code](https://www.fastprep.io/problems/goldman-decrypt-code-lock) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-decrypt-code-lock) | Sep 06, 2025 | | **Goldman Sachs** | [Data Reorganization](https://www.fastprep.io/problems/goldman-get-minimum-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-get-minimum-value) | Sep 06, 2025 | | **SpaceX** | [Rocket Component Cost](https://www.fastprep.io/problems/spacex-rocket-component-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/spacex-rocket-component-cost) | Aug 22, 2025 | | **SpaceX** | [Design Tagged Gift Shop Search](https://www.fastprep.io/low-level-design/gift-shop-tagged-search) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/gift-shop-tagged-search) | Aug 22, 2025 | | **SpaceX** | [Warehouse Order Transit Tracking](https://www.fastprep.io/low-level-design/warehouse-order-transit-tracking) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/warehouse-order-transit-tracking) | Aug 22, 2025 | | **Splunk** | [Activity Playlist Streaming Service](https://www.fastprep.io/system-design/activity-playlist-streaming-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/activity-playlist-streaming-service) | Aug 13, 2025 | | **Splunk** | [Cost-Aware Interactive Content Delivery](https://www.fastprep.io/system-design/cost-aware-interactive-content-delivery) | System design | [![Practice][p]](https://www.fastprep.io/system-design/cost-aware-interactive-content-delivery) | Aug 13, 2025 | | **Splunk** | [Prepaid Game-Card Payment Network](https://www.fastprep.io/system-design/prepaid-game-card-payment-network) | System design | [![Practice][p]](https://www.fastprep.io/system-design/prepaid-game-card-payment-network) | Aug 13, 2025 | | **Splunk** | [Resilient Sports Statistics Aggregation](https://www.fastprep.io/system-design/resilient-sports-statistics-aggregation) | System design | [![Practice][p]](https://www.fastprep.io/system-design/resilient-sports-statistics-aggregation) | Aug 13, 2025 | | **Splunk** | [Video Platform Capacity Planning](https://www.fastprep.io/system-design/video-platform-capacity-planning) | System design | [![Practice][p]](https://www.fastprep.io/system-design/video-platform-capacity-planning) | Aug 13, 2025 | | **Amazon** | [Fair Prize Distribution](https://www.fastprep.io/problems/amazon-fair-prize-distribution) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-fair-prize-distribution) | Aug 10, 2025 | | **Amazon** | [Count Picked Items Less Than Queries](https://www.fastprep.io/problems/amazon-count-picked-items-less-than-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-picked-items-less-than-queries) | Aug 10, 2025 | | **Salesforce** | [Spam Text Classification](https://www.fastprep.io/problems/salesforce-spam-text-classification) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-spam-text-classification) | Aug 06, 2025 | | **Salesforce** | [Viewable Profiles by User](https://www.fastprep.io/problems/salesforce-viewable-profiles-by-user) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-viewable-profiles-by-user) | Aug 06, 2025 | | **Amazon** | [Largest Number With Digit Sum](https://www.fastprep.io/problems/amazon-largest-number-with-digit-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-largest-number-with-digit-sum) | Aug 03, 2025 | | **Amazon** | [Minimize Binary Subsequence Cost](https://www.fastprep.io/problems/amazon-minimize-binary-subsequence-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimize-binary-subsequence-cost) | Aug 03, 2025 | | **Salesforce** | [Maximize Movie Ratings With Skip Limit](https://www.fastprep.io/problems/salesforce-maximize-movie-ratings-with-skip-limit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-maximize-movie-ratings-with-skip-limit) | Jul 26, 2025 | | **Amazon** | [First Valid Word Segmentation](https://www.fastprep.io/problems/amazon-first-word-segmentation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-first-word-segmentation) | Jul 26, 2025 | | **Amazon** | [Longest Increasing Subsequence With Bounded Adjacent Difference](https://www.fastprep.io/problems/amazon-longest-increasing-subsequence-bounded-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-longest-increasing-subsequence-bounded-difference) | Jul 26, 2025 | | **Amazon** | [Nearby Fulfillment Centers with Inventory](https://www.fastprep.io/problems/amazon-nearby-fulfillment-centers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-nearby-fulfillment-centers) | Jul 26, 2025 | | **Amazon** | [Search in a Rotated Sorted Array](https://www.fastprep.io/problems/amazon-search-rotated-sorted-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-search-rotated-sorted-array) | Jul 26, 2025 | | **Amperity** | [Draw Overlapping ASCII Rectangles](https://www.fastprep.io/problems/amperity-ascii-rectangle-canvas) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amperity-ascii-rectangle-canvas) | Jul 26, 2025 | | **Anthropic** | [Profiling Events from Consecutive Stack Samples](https://www.fastprep.io/problems/anthropic-consecutive-stack-sample-trace-events) | Coding | [![Practice][p]](https://www.fastprep.io/problems/anthropic-consecutive-stack-sample-trace-events) | Jul 26, 2025 | | **ByteDance** | [Longest Repeating Character Replacement](https://www.fastprep.io/problems/bytedance-longest-repeating-character-replacement) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-longest-repeating-character-replacement) | Jul 26, 2025 | | **ByteDance** | [QuickSelect Kth Smallest](https://www.fastprep.io/problems/bytedance-quickselect-kth-smallest) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-quickselect-kth-smallest) | Jul 26, 2025 | | **ByteDance** | [Search in Rotated Sorted Array](https://www.fastprep.io/problems/bytedance-search-in-rotated-sorted-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bytedance-search-in-rotated-sorted-array) | Jul 26, 2025 | | **Capillary Technologies** | [Delete a Linked-List Node Without the Head](https://www.fastprep.io/problems/capillary-delete-linked-list-node-without-head) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capillary-delete-linked-list-node-without-head) | Jul 26, 2025 | | **Capillary Technologies** | [Top View of a Binary Tree](https://www.fastprep.io/problems/capillary-top-view-of-binary-tree) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capillary-top-view-of-binary-tree) | Jul 26, 2025 | | **Cisco** | [Longest Non-Repeating Substring](https://www.fastprep.io/problems/cisco-longest-non-repeating-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-longest-non-repeating-substring) | Jul 26, 2025 | | **Databricks** | [Durable Data Writer](https://www.fastprep.io/problems/databricks-durable-data-writer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-durable-data-writer) | Jul 26, 2025 | | **Databricks** | [Snapshot Set Iterator](https://www.fastprep.io/problems/databricks-snapshot-set-iterator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-snapshot-set-iterator) | Jul 26, 2025 | | **Google** | [Binary Matrix Top-to-Bottom Reachability](https://www.fastprep.io/problems/google-binary-matrix-top-to-bottom-reachability) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-binary-matrix-top-to-bottom-reachability) | Jul 26, 2025 | | **Google** | [Enumerate Top-to-Bottom Grid Paths](https://www.fastprep.io/problems/google-enumerate-top-to-bottom-grid-paths) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-enumerate-top-to-bottom-grid-paths) | Jul 26, 2025 | | **Google** | [Inclusive Rectangle Coverage Counts](https://www.fastprep.io/problems/google-inclusive-rectangle-coverage-counts) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-inclusive-rectangle-coverage-counts) | Jul 26, 2025 | | **Google** | [Minimum-Weight Top-to-Bottom Grid Path](https://www.fastprep.io/problems/google-minimum-weight-top-to-bottom-grid-path) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimum-weight-top-to-bottom-grid-path) | Jul 26, 2025 | | **Google** | [Priority Job Scheduler with Cooldowns](https://www.fastprep.io/problems/google-priority-job-scheduler-with-cooldown) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-priority-job-scheduler-with-cooldown) | Jul 26, 2025 | | **Harvey** | [Highlight and Rank Overlapping Citations](https://www.fastprep.io/problems/harvey-rank-citations-by-word-overlap) | Coding | [![Practice][p]](https://www.fastprep.io/problems/harvey-rank-citations-by-word-overlap) | Jul 26, 2025 | | **Illumio** | [Time-Based Key-Value Database](https://www.fastprep.io/problems/illumio-time-based-key-value-database) | Coding | [![Practice][p]](https://www.fastprep.io/problems/illumio-time-based-key-value-database) | Jul 26, 2025 | | **LinkedIn** | [Merge N-Ary Trees by Key](https://www.fastprep.io/problems/linkedin-merge-n-ary-trees-by-key) | Coding | [![Practice][p]](https://www.fastprep.io/problems/linkedin-merge-n-ary-trees-by-key) | Jul 26, 2025 | | **Meta** | [Count Fully Used Batteries](https://www.fastprep.io/problems/meta-count-fully-used-batteries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-count-fully-used-batteries) | Jul 26, 2025 | | **Meta** | [Count Key Changes](https://www.fastprep.io/problems/meta-count-key-changes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-count-key-changes) | Jul 26, 2025 | | **Meta** | [Minimum Operations for a Stepwise Sequence](https://www.fastprep.io/problems/meta-minimum-stepwise-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-minimum-stepwise-operations) | Jul 26, 2025 | | **Meta** | [Most Frequent Reduced Digit](https://www.fastprep.io/problems/meta-most-frequent-reduced-digit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meta-most-frequent-reduced-digit) | Jul 26, 2025 | | **Nuro** | [Maximum Value for Two Delivery Robots](https://www.fastprep.io/problems/nuro-maximum-two-robot-delivery-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/nuro-maximum-two-robot-delivery-value) | Jul 26, 2025 | | **OnePay** | [Count Complete Toll Journeys](https://www.fastprep.io/problems/onepay-count-complete-toll-journeys) | Coding | [![Practice][p]](https://www.fastprep.io/problems/onepay-count-complete-toll-journeys) | Jul 26, 2025 | | **OpenAI** | [Versioned Followers and Followees](https://www.fastprep.io/problems/openai-versioned-followers-and-followees) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-versioned-followers-and-followees) | Jul 26, 2025 | | **OpenAI** | [Versioned Friend Recommendations](https://www.fastprep.io/problems/openai-versioned-friend-recommendations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-versioned-friend-recommendations) | Jul 26, 2025 | | **Pinterest** | [Nearest Eligible Elevator](https://www.fastprep.io/problems/pinterest-nearest-eligible-elevator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-nearest-eligible-elevator) | Jul 26, 2025 | | **Pinterest** | [Time-Ordered Elevator Dispatch](https://www.fastprep.io/problems/pinterest-time-ordered-elevator-dispatch) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-time-ordered-elevator-dispatch) | Jul 26, 2025 | | **Salesforce** | [Maximum Barbell Weight](https://www.fastprep.io/problems/salesforce-weight-capacity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-weight-capacity) | Jul 26, 2025 | | **Salesforce** | [Minimum No-Repeat Segments After One Character Removal](https://www.fastprep.io/problems/salesforce-minimum-no-repeat-segments-after-removal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-minimum-no-repeat-segments-after-removal) | Jul 26, 2025 | | **SAP Labs** | [Sliding-Window Text Chunking](https://www.fastprep.io/problems/sap-sliding-window-text-chunking) | Coding | [![Practice][p]](https://www.fastprep.io/problems/sap-sliding-window-text-chunking) | Jul 26, 2025 | | **Serval** | [Find Shared Camera Activity Periods](https://www.fastprep.io/problems/serval-shared-camera-activity-periods) | Coding | [![Practice][p]](https://www.fastprep.io/problems/serval-shared-camera-activity-periods) | Jul 26, 2025 | | **Snowflake** | [Simulate a Queued Multi-Rule Rate Limiter](https://www.fastprep.io/problems/snowflake-queued-multi-rule-rate-limiter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-queued-multi-rule-rate-limiter) | Jul 26, 2025 | | **Tekion** | [Koko Eating Bananas](https://www.fastprep.io/problems/tekion-koko-eating-bananas) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tekion-koko-eating-bananas) | Jul 26, 2025 | | **Tekion** | [Maximum Sum of a Unique-Element Subarray](https://www.fastprep.io/problems/tekion-maximum-sum-unique-element-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tekion-maximum-sum-unique-element-subarray) | Jul 26, 2025 | | **Tekion** | [Minimum Size Subarray Sum With Negatives](https://www.fastprep.io/problems/tekion-minimum-size-subarray-sum-with-negatives) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tekion-minimum-size-subarray-sum-with-negatives) | Jul 26, 2025 | | **Tekion** | [Number of Islands](https://www.fastprep.io/problems/tekion-number-of-islands) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tekion-number-of-islands) | Jul 26, 2025 | | **Tekion** | [Set Matrix Zeroes](https://www.fastprep.io/problems/tekion-set-matrix-zeroes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tekion-set-matrix-zeroes) | Jul 26, 2025 | | **TikTok** | [Can Reach the Exit with Teleports](https://www.fastprep.io/problems/tiktok-teleport-labyrinth) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-teleport-labyrinth) | Jul 26, 2025 | | **TikTok** | [Check Monotonic Triples](https://www.fastprep.io/problems/tiktok-check-monotonic-triples) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-check-monotonic-triples) | Jul 26, 2025 | | **TikTok** | [Shift Every K-th Consonant](https://www.fastprep.io/problems/tiktok-shift-every-kth-consonant) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-shift-every-kth-consonant) | Jul 26, 2025 | | **Together AI** | [Find GPU Capacity and Drain a Node](https://www.fastprep.io/problems/together-ai-gpu-node-rescheduling) | Coding | [![Practice][p]](https://www.fastprep.io/problems/together-ai-gpu-node-rescheduling) | Jul 26, 2025 | | **Virtu Financial** | [Count Substrings With Identical Characters](https://www.fastprep.io/problems/virtu-count-identical-character-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/virtu-count-identical-character-substrings) | Jul 26, 2025 | | **Virtu Financial** | [HexSpeak](https://www.fastprep.io/problems/virtu-hexspeak) | Coding | [![Practice][p]](https://www.fastprep.io/problems/virtu-hexspeak) | Jul 26, 2025 | | **Virtu Financial** | [Maximum Apples That Fit in a Box](https://www.fastprep.io/problems/virtu-maximum-apples-in-box) | Coding | [![Practice][p]](https://www.fastprep.io/problems/virtu-maximum-apples-in-box) | Jul 26, 2025 | | **Virtu Financial** | [Minimum Steps to a Fibonacci Number](https://www.fastprep.io/problems/virtu-minimum-steps-to-fibonacci) | Coding | [![Practice][p]](https://www.fastprep.io/problems/virtu-minimum-steps-to-fibonacci) | Jul 26, 2025 | | **Zoox** | [Best Time to Buy and Sell Stock](https://www.fastprep.io/problems/zoox-best-time-to-buy-and-sell-stock) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zoox-best-time-to-buy-and-sell-stock) | Jul 26, 2025 | | **Arcesium** | [City Infection Number](https://www.fastprep.io/problems/arcesium-city-infection-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-city-infection-number) | Jul 23, 2025 | | **Arcesium** | [Minimum Tunnel Crossing Time](https://www.fastprep.io/problems/arcesium-minimum-tunnel-crossing-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-minimum-tunnel-crossing-time) | Jul 23, 2025 | | **Arcesium** | [Product of Subset Maxima](https://www.fastprep.io/problems/arcesium-product-of-subset-maxima) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-product-of-subset-maxima) | Jul 23, 2025 | | **Arcesium** | [Reconstruct the Root Stream](https://www.fastprep.io/problems/arcesium-reconstruct-root-stream) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-reconstruct-root-stream) | Jul 23, 2025 | | **Amazon** | [Maximize Pages Before Suspension](https://www.fastprep.io/problems/amazon-maximize-pages-before-suspension) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximize-pages-before-suspension) | Jul 08, 2025 | | **Salesforce** | [Minimum Operations to Zero](https://www.fastprep.io/problems/salesforce-minimum-operations-to-zero) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-minimum-operations-to-zero) | Jul 08, 2025 | | **Salesforce** | [Integrity Score](https://www.fastprep.io/problems/salesforce-integrity-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-integrity-score) | Jul 08, 2025 | | **Fortinet** | [Compute Checksum Aggregation](https://www.fastprep.io/problems/fortinet-compute-checksum-aggregation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/fortinet-compute-checksum-aggregation) | Jul 08, 2025 | | **Fortinet** | [Madam C.J. Walker's Business Plan](https://www.fastprep.io/problems/fortinet-calculate-maximum-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/fortinet-calculate-maximum-profit) | Jun 24, 2025 | | **Fortinet** | [K-Means Clustering](https://www.fastprep.io/problems/fortinet-get-maximum-distance) | Coding | [![Practice][p]](https://www.fastprep.io/problems/fortinet-get-maximum-distance) | Jun 24, 2025 | | **Fortinet** | [Signal Pings](https://www.fastprep.io/problems/fortinet-get-required-sweeps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/fortinet-get-required-sweeps) | Jun 24, 2025 | | **Box** | [Retention Policy Collision](https://www.fastprep.io/problems/box-find-remaining-policies) | Coding | [![Practice][p]](https://www.fastprep.io/problems/box-find-remaining-policies) | Jun 24, 2025 | | **Box** | [Counterfeit Currency](https://www.fastprep.io/problems/box-count-counterfeit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/box-count-counterfeit) | Jun 24, 2025 | | **Box** | [Box Fro~yo](https://www.fastprep.io/problems/box-flavor-changer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/box-flavor-changer) | Jun 24, 2025 | | **Amazon** | [Predict Answer](https://www.fastprep.io/problems/amazon-predict-answer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-predict-answer) | Jun 23, 2025 | | **Amazon** | [Get Min Subsegments](https://www.fastprep.io/problems/amazon-get-min-subsegments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-subsegments) | Jun 18, 2025 | | **Amazon** | [Find Security Level](https://www.fastprep.io/problems/amazon-find-security-level) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-security-level) | Jun 18, 2025 | | **Amazon** | [Minimize Variation](https://www.fastprep.io/problems/amazon-minimize-variation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimize-variation) | Jun 18, 2025 | | **JP Morgan** | [Calculate Net Profit](https://www.fastprep.io/problems/jpmorgan-calculate-net-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-calculate-net-profit) | Jun 18, 2025 | | **JP Morgan** | [Balanced Sum](https://www.fastprep.io/problems/jpmorgan-balanced-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-balanced-sum) | Jun 18, 2025 | | **JP Morgan** | [Get Min Operations](https://www.fastprep.io/problems/jpmorgan-get-min-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-min-operations) | Jun 18, 2025 | | **JP Morgan** | [Get Search Result](https://www.fastprep.io/problems/jpmorgan-get-search-results) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-search-results) | Jun 18, 2025 | | **JP Morgan** | [One Substring Count](https://www.fastprep.io/problems/jpmorgan-one-substring-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-one-substring-count) | Jun 18, 2025 | | **JP Morgan** | [Find Total Weight](https://www.fastprep.io/problems/jpmorgan-find-total-weight) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-find-total-weight) | Jun 18, 2025 | | **PayPay** | [Sum Consecutive Identical Digits](https://www.fastprep.io/problems/paypay-sum-consecutive-identical-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypay-sum-consecutive-identical-digits) | Jun 18, 2025 | | **PayPay** | [Board Coloring and Query Processing](https://www.fastprep.io/problems/paypay-board-coloring-and-query-processing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypay-board-coloring-and-query-processing) | Jun 18, 2025 | | **PayPay** | [Palindromic Array Transformation](https://www.fastprep.io/problems/paypay-palindromic-array-transformation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypay-palindromic-array-transformation) | Jun 18, 2025 | | **PayPay** | [Calculate Change](https://www.fastprep.io/problems/paypay-calculate-change) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypay-calculate-change) | Jun 18, 2025 | | **PayPay** | [Find Maximum Two-Digit Fragment](https://www.fastprep.io/problems/paypay-find-maximum-two-digit-fragment) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypay-find-maximum-two-digit-fragment) | Jun 18, 2025 | | **Amazon** | [Find Hash](https://www.fastprep.io/problems/amazon-find-hash) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-hash) | Jun 12, 2025 | | **Postman** | [Design a Threaded Comment System with User Tags](https://www.fastprep.io/low-level-design/threaded-comment-system-with-user-tags) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/threaded-comment-system-with-user-tags) | Jun 07, 2025 | | **Postman** | [Design an Annotated Comment Thread System](https://www.fastprep.io/low-level-design/annotated-comment-thread-system) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/annotated-comment-thread-system) | Jun 07, 2025 | | **Amazon** | [Find Minimum Days](https://www.fastprep.io/problems/amazon-find-minimum-days) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-days) | May 31, 2025 | | **Amazon** | [Split Prefix Suffix](https://www.fastprep.io/problems/amazon-split-prefix-suffix) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-split-prefix-suffix) | May 31, 2025 | | **Amazon** | [Find Minimum Machine Sizes](https://www.fastprep.io/problems/amazon-find-minimum-machines-size) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-machines-size) | May 31, 2025 | | **Amazon** | [Count Special Substrings](https://www.fastprep.io/problems/amazon-count-special-substrs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-special-substrs) | May 31, 2025 | | **Amazon** | [Get Maximum Count](https://www.fastprep.io/problems/amazon-get-maximum-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-maximum-count) | May 31, 2025 | | **Cloudflare** | [Determine Min Partitions Required](https://www.fastprep.io/problems/cloudflare-determine-min-partitions-required) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cloudflare-determine-min-partitions-required) | May 31, 2025 | | **Amazon** | [Determine the Best Skipping Strategy](https://www.fastprep.io/problems/amazon-determine-the-best-skipping-strategy) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-determine-the-best-skipping-strategy) | May 25, 2025 | | **Amazon** | [Find Number of Compatible Substrings](https://www.fastprep.io/problems/1.amazon-find-number-of-compatible-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-number-of-compatible-substrings) | May 25, 2025 | | **Amazon** | [Minimum Connected Delivery Zones After Adding One Interval](https://www.fastprep.io/problems/1.amazon-min-disconnected-sets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-min-disconnected-sets) | May 25, 2025 | | **Amazon** | [Find Maximum Score](https://www.fastprep.io/problems/1.amazon-find-maximum-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-maximum-score) | May 25, 2025 | | **Amazon** | [Lexicographically Maximal Resulting Array](https://www.fastprep.io/problems/1.amazon-lexicographically-maximal-resulting-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-lexicographically-maximal-resulting-array) | May 25, 2025 | | **Meesho** | [Distinct Moves](https://www.fastprep.io/problems/meesho-distinct-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/meesho-distinct-moves) | May 25, 2025 | | **Agoda** | [Unique Digits in Range](https://www.fastprep.io/problems/agoda-unique-digits-in-range) | Coding | [![Practice][p]](https://www.fastprep.io/problems/agoda-unique-digits-in-range) | May 25, 2025 | | **Agoda** | [Two-Core Process Assignment](https://www.fastprep.io/problems/agoda-two-core-process-assignment) | Coding | [![Practice][p]](https://www.fastprep.io/problems/agoda-two-core-process-assignment) | May 25, 2025 | | **Agoda** | [Team Formation](https://www.fastprep.io/problems/agoda-team-formation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/agoda-team-formation) | May 25, 2025 | | **IBM** | [Get Min Increment](https://www.fastprep.io/problems/ibm-get-minimum-increment) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-minimum-increment) | May 25, 2025 | | **IBM** | [Get Min Operations](https://www.fastprep.io/problems/ibm-get-min-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-min-operations) | May 25, 2025 | | **Microsoft** | [Valid Mixed Case Letters](https://www.fastprep.io/problems/microsoft-valid-mixed-case-letters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-valid-mixed-case-letters) | May 25, 2025 | | **Airtable** | [Approximate Percentiles](https://www.fastprep.io/problems/airtable-approximate-percentiles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airtable-approximate-percentiles) | May 25, 2025 | | **Airtable** | [Get Most Hydrated Team](https://www.fastprep.io/problems/airtable-get-mostp-hydrated-team) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airtable-get-mostp-hydrated-team) | May 25, 2025 | | **Airtable** | [Table Editing](https://www.fastprep.io/problems/airtable-percentiles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/airtable-percentiles) | May 25, 2025 | | **Dell** | [Optimizing Resource Allocation](https://www.fastprep.io/problems/dell-find-optimal-resources) | Coding | [![Practice][p]](https://www.fastprep.io/problems/dell-find-optimal-resources) | May 25, 2025 | | **Dell** | [Count Binary Substrings](https://www.fastprep.io/problems/dell-get-substring-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/dell-get-substring-count) | May 25, 2025 | | **Epify** | [Request Redirection](https://www.fastprep.io/problems/epifi-get-min-latency) | Coding | [![Practice][p]](https://www.fastprep.io/problems/epifi-get-min-latency) | May 25, 2025 | | **Juspay** | [Converging Maze: Largest Sum Cycle](https://www.fastprep.io/problems/juspay-converging-maze-largest-sum-cycle) | Coding | [![Practice][p]](https://www.fastprep.io/problems/juspay-converging-maze-largest-sum-cycle) | May 25, 2025 | | **Juspay** | [Converging Maze: Nearest meeting cell](https://www.fastprep.io/problems/juspay-nearest-meeting-cell) | Coding | [![Practice][p]](https://www.fastprep.io/problems/juspay-nearest-meeting-cell) | May 25, 2025 | | **Postman** | [Design a Dating Application](https://www.fastprep.io/low-level-design/dating-application-object-model) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/dating-application-object-model) | May 15, 2025 | | **Postman** | [Design a Location-Aware Dating Application](https://www.fastprep.io/low-level-design/location-aware-dating-application) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/location-aware-dating-application) | May 15, 2025 | | **Amazon** | [Min Dock Bays](https://www.fastprep.io/problems/amazon-get-minimum-dock-bays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-minimum-dock-bays) | Apr 27, 2025 | | **Amazon** | [Find Idle Skill Query](https://www.fastprep.io/problems/amazon-find-idle-skills-query) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-idle-skills-query) | Apr 27, 2025 | | **Amazon** | [Compute Beauty of Array Products](https://www.fastprep.io/problems/amazon-compute-beauty-of-array-products) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-compute-beauty-of-array-products) | Apr 27, 2025 | | **Amazon** | [Min Num Unique Distribution Hubs](https://www.fastprep.io/problems/amazon-get-minimum-number-of-unique-distribution-centers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-minimum-number-of-unique-distribution-centers) | Apr 13, 2025 | | **Amazon** | [Use Minimum Tokens](https://www.fastprep.io/problems/amazon-use-minimum-tokens) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-use-minimum-tokens) | Apr 13, 2025 | | **Amazon** | [Next Perfect String](https://www.fastprep.io/problems/amazon-next-greater-perfect-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-next-greater-perfect-string) | Apr 13, 2025 | | **DTCC** | [Find Reciprocal](https://www.fastprep.io/problems/dtcc-find-reciprocal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/dtcc-find-reciprocal) | Apr 13, 2025 | | **Amazon** | [Remove Characters in Frequency Order](https://www.fastprep.io/problems/amazon-remove-characters-in-frequency-order) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-remove-characters-in-frequency-order) | Apr 10, 2025 | | **Microsoft** | [Min Cars to Remove](https://www.fastprep.io/problems/microsoft-minimum-cars-to-remove) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-cars-to-remove) | Apr 10, 2025 | | **Roku** | [Design a Recurring Grocery Subscription Domain](https://www.fastprep.io/low-level-design/recurring-grocery-subscription-domain) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/recurring-grocery-subscription-domain) | Apr 08, 2025 | | **Amazon** | [Optimal Utilization](https://www.fastprep.io/problems/amazon-optimal-utilization) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-optimal-utilization) | Apr 05, 2025 | | **Amazon** | [Buy Servers](https://www.fastprep.io/problems/amazon-purchase-servers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-purchase-servers) | Apr 05, 2025 | | **Amazon** | [Min Retailers](https://www.fastprep.io/problems/amazon-minimum-retailers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-retailers) | Mar 31, 2025 | | **Amazon** | [Cinema Shows](https://www.fastprep.io/problems/amazon-cinema-shows) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-cinema-shows) | Mar 31, 2025 | | **Amazon** | [Find Replacement](https://www.fastprep.io/problems/amazon-find-min-replacements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-min-replacements) | Mar 29, 2025 | | **IBM** | [Bitonic Subarray](https://www.fastprep.io/problems/ibm-find-length-of-longest-bitonic-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-find-length-of-longest-bitonic-subarray) | Mar 29, 2025 | | **ZipRecruiter** | [Fantasy Card Duel](https://www.fastprep.io/problems/ziprecruiter-fantasy-card-duel) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-fantasy-card-duel) | Mar 29, 2025 | | **Amazon** | [Good String](https://www.fastprep.io/problems/amazon-convert-to-good-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-convert-to-good-string) | Mar 28, 2025 | | **ZipRecruiter** | [Triplets With Unique Chars](https://www.fastprep.io/problems/ziprecruiter-triplets-with-unique-chars) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-triplets-with-unique-chars) | Mar 28, 2025 | | **HSBC** | [Flower Bouquets](https://www.fastprep.io/problems/hsbc-arrange-flower-sticks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hsbc-arrange-flower-sticks) | Mar 28, 2025 | | **HSBC** | [Max House Area](https://www.fastprep.io/problems/hsbc-find-largest-house-area) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hsbc-find-largest-house-area) | Mar 28, 2025 | | **Yahoo** | [Count Substring](https://www.fastprep.io/problems/yahoo-get-substring-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/yahoo-get-substring-count) | Mar 28, 2025 | | **Yahoo** | [Get String](https://www.fastprep.io/problems/yahoo-get-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/yahoo-get-string) | Mar 28, 2025 | | **Amazon** | [Max Sum of Non-overlapping Intervals](https://www.fastprep.io/problems/amazon-max-sum-of-non-overlapping-intervals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-max-sum-of-non-overlapping-intervals) | Mar 27, 2025 | | **Amazon** | [Find Min Max Difference](https://www.fastprep.io/problems/amazon-find-min-max-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-min-max-difference) | Mar 27, 2025 | | **Amazon** | [Get Minimal Cost](https://www.fastprep.io/problems/amazon-get-minimal-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-minimal-cost) | Mar 26, 2025 | | **Microsoft** | [Freeing Shelves](https://www.fastprep.io/problems/microsoft-maximize-types-after-freeing-shelves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximize-types-after-freeing-shelves) | Mar 25, 2025 | | **Microsoft** | [Balance the Game Board](https://www.fastprep.io/problems/microsoft-balance-the-game-board) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-balance-the-game-board) | Mar 25, 2025 | | **Amazon** | [Make Array Distinct](https://www.fastprep.io/problems/amazon-make-array-distinct) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-make-array-distinct) | Mar 24, 2025 | | **Amazon** | [Find Least Possible Vulnerability](https://www.fastprep.io/problems/amazon-find-least-possible-vulnerability) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-least-possible-vulnerability) | Mar 24, 2025 | | **Tesla** | [Shoe Factory](https://www.fastprep.io/problems/tesla-shoe-factory) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tesla-shoe-factory) | Mar 24, 2025 | | **Tesla** | [Encrypt](https://www.fastprep.io/problems/tesla-encrypt) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tesla-encrypt) | Mar 24, 2025 | | **Fortinet** | [Beautiful Strings](https://www.fastprep.io/problems/fortinet-maximize-beautiful-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/fortinet-maximize-beautiful-substrings) | Mar 24, 2025 | | **Amazon** | [Number Of Well Performing Groups](https://www.fastprep.io/problems/amazon-number-of-well-performing-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-number-of-well-performing-groups) | Mar 23, 2025 | | **Amazon** | [Ensure Non Zero Load Sum](https://www.fastprep.io/problems/amazon-ensure-non-zero-load-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-ensure-non-zero-load-sum) | Mar 23, 2025 | | **TikTok** | [Min Adjustment](https://www.fastprep.io/problems/tiktok-get-min-adjustments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-get-min-adjustments) | Mar 23, 2025 | | **TikTok** | [Shopping Cost](https://www.fastprep.io/problems/tiktok-calculate-tiktok-shopping-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-calculate-tiktok-shopping-cost) | Mar 23, 2025 | | **Instacart** | [Bird Collects Sticks](https://www.fastprep.io/problems/instacart-collect-sticks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/instacart-collect-sticks) | Mar 23, 2025 | | **Instacart** | [Pop Bubbles](https://www.fastprep.io/problems/instacart-pop-bubbles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/instacart-pop-bubbles) | Mar 23, 2025 | | **Instacart** | [Count Color Pairs](https://www.fastprep.io/problems/instacart-balloon-color-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/instacart-balloon-color-pairs) | Mar 23, 2025 | | **Amazon** | [Get Max Increments](https://www.fastprep.io/problems/amazon-get-max-increments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-increments) | Mar 22, 2025 | | **Amazon** | [Password Strength](https://www.fastprep.io/problems/amazon-password-strength) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-password-strength) | Mar 22, 2025 | | **Publicis Sapients** | [Get Min Time](https://www.fastprep.io/problems/publicis-sapients-get-minimum-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/publicis-sapients-get-minimum-time) | Mar 22, 2025 | | **Pure Storage** | [Bakery Quality Control](https://www.fastprep.io/problems/purestorage-compare-boxes-to-template) | Coding | [![Practice][p]](https://www.fastprep.io/problems/purestorage-compare-boxes-to-template) | Mar 22, 2025 | | **Pure Storage** | [Find Repetition](https://www.fastprep.io/problems/purestorage-find-repetitions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/purestorage-find-repetitions) | Mar 22, 2025 | | **Pure Storage** | [Count Different Palindrome Substrings](https://www.fastprep.io/problems/purestorage-count-different-palindrome-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/purestorage-count-different-palindrome-substrings) | Mar 22, 2025 | | **Pure Storage** | [Racing Results](https://www.fastprep.io/problems/purestorage-racing-results) | Coding | [![Practice][p]](https://www.fastprep.io/problems/purestorage-racing-results) | Mar 22, 2025 | | **Ramp** | [Accept or Decline Queries](https://www.fastprep.io/problems/ramp-accept-or-decline-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ramp-accept-or-decline-queries) | Mar 22, 2025 | | **Amazon** | [Trader Joe Trades](https://www.fastprep.io/problems/amazon-trader-joe-trades) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-trader-joe-trades) | Mar 21, 2025 | | **Amazon** | [Optimal Level](https://www.fastprep.io/problems/amazon-find-optimal-level) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-optimal-level) | Mar 21, 2025 | | **Amazon** | [Min Operation](https://www.fastprep.io/problems/amazon-min-operation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-min-operation) | Mar 21, 2025 | | **Amazon** | [All About Rewards](https://www.fastprep.io/problems/amazon-all-about-rewards) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-all-about-rewards) | Mar 20, 2025 | | **Amazon** | [Inventory Processes Survival Possibility](https://www.fastprep.io/problems/amazon-inventory-processes-survival-possibility) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-inventory-processes-survival-possibility) | Mar 18, 2025 | | **Amazon** | [All About Medians](https://www.fastprep.io/problems/amazon-medians) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-medians) | Mar 18, 2025 | | **Amazon** | [Get Largest Number](https://www.fastprep.io/problems/amazon-find-partition-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-partition-cost) | Mar 13, 2025 | | **SpaceX** | [Speed to Pressure Lookup](https://www.fastprep.io/problems/spacex-speed-to-pressure-lookup) | Coding | [![Practice][p]](https://www.fastprep.io/problems/spacex-speed-to-pressure-lookup) | Mar 13, 2025 | | **Amazon** | [Get The Most Out Of The Data](https://www.fastprep.io/problems/amazon-get-most-out-of-the-data) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-most-out-of-the-data) | Feb 10, 2025 | | **TikTok** | [Playlist Partitioning](https://www.fastprep.io/problems/tiktok-playlist-partitioning) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-playlist-partitioning) | Feb 09, 2025 | | **TikTok** | [Change Username](https://www.fastprep.io/problems/tiktok-changing-username) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-changing-username) | Feb 09, 2025 | | **Microsoft** | [Maximize Number Of Produced Cars](https://www.fastprep.io/problems/microsoft-maximize-number-of-produced-cars) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximize-number-of-produced-cars) | Feb 08, 2025 | | **Microsoft** | [Minimize Tokens Remaining](https://www.fastprep.io/problems/microsoft-minimum-tokens-remaining) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-tokens-remaining) | Feb 08, 2025 | | **Amazon** | [Max Number of Products You can Pick](https://www.fastprep.io/problems/amazon-maximum-number-of-products-you-can-pick) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-number-of-products-you-can-pick) | Feb 05, 2025 | | **Amazon** | [Maximize Sum of Array Multiplication](https://www.fastprep.io/problems/amazon-maximize-sum-of-array-multiplication) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximize-sum-of-array-multiplication) | Feb 05, 2025 | | **Amazon** | [Sum of Max Subarrys](https://www.fastprep.io/problems/amazon-sum-of-max-subarrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-sum-of-max-subarrays) | Feb 02, 2025 | | **Amazon** | [Get Maximum](https://www.fastprep.io/problems/amazon-get-maximum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-maximum) | Feb 02, 2025 | | **Amazon** | [Get Min Score](https://www.fastprep.io/problems/1.amazon-get-min-score1) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-min-score1) | Jan 25, 2025 | | **Amazon** | [Equal Products](https://www.fastprep.io/problems/1.amazon-equal-products) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-equal-products) | Jan 20, 2025 | | **Postman** | [Design a Collaborative Document Workspace Frontend](https://www.fastprep.io/system-design/frontend-collaborative-document-workspace) | System design | [![Practice][p]](https://www.fastprep.io/system-design/frontend-collaborative-document-workspace) | Jan 17, 2025 | | **Amazon** | [Find Sum of System Volnerability](https://www.fastprep.io/problems/amazon-find-sum-of-system-vulnerability) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-sum-of-system-vulnerability) | Jan 10, 2025 | | **Amazon** | [Maximize Product of Sizes of Subtrees](https://www.fastprep.io/problems/amazon-maximize-product-of-sizes-of-subtrees) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximize-product-of-sizes-of-subtrees) | Jan 09, 2025 | | **Amazon** | [Min Energy Cost](https://www.fastprep.io/problems/amazon-minimum-energy-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-energy-cost) | Jan 09, 2025 | | **Amazon** | [Calculate Max Salary](https://www.fastprep.io/problems/amazon-calculate-max-salary) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-calculate-max-salary) | Jan 09, 2025 | | **Amazon** | [Optimal Interval Difference](https://www.fastprep.io/problems/amazon-optimal-interval-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-optimal-interval-difference) | Jan 08, 2025 | | **Amazon** | [Get Largest Index Len](https://www.fastprep.io/problems/1.amazon-get-largest-index-len) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-largest-index-len) | Jan 08, 2025 | | **Amazon** | [Find Max Value](https://www.fastprep.io/problems/amazon-find-max-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-max-value) | Jan 05, 2025 | | **Amazon** | [Get Max Events](https://www.fastprep.io/problems/amazon-get-maximum-events) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-maximum-events) | Jan 05, 2025 | | **TikTok** | [TikTok Spam Filter](https://www.fastprep.io/problems/tiktok-get-spam-comments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-get-spam-comments) | Jan 04, 2025 | | **TikTok** | [Count Twin Pairs](https://www.fastprep.io/problems/tiktok-count-twin-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-twin-pairs) | Jan 04, 2025 | | **Google** | [Number of Distinct Islands](https://www.fastprep.io/problems/google-number-of-distinct-islands) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-number-of-distinct-islands) | Dec 31, 2024 | | **Snowflake** | [Remove Stones to Minimize the Total](https://www.fastprep.io/problems/snowflake-remove-stones-to-minimize-the-total) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-remove-stones-to-minimize-the-total) | Dec 28, 2024 | | **Snowflake** | [Find the Max Len of A Good Subsequence I](https://www.fastprep.io/problems/snowflake-find-the-maximum-length-of-a-good-subsequence-i) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-find-the-maximum-length-of-a-good-subsequence-i) | Dec 28, 2024 | | **Microsoft** | [Sum with Tiles](https://www.fastprep.io/problems/microsoft-sum-with-tiles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-sum-with-tiles) | Dec 24, 2024 | | **Microsoft** | [Maximize Sum of Two Non Overlapping Fragments](https://www.fastprep.io/problems/microsoft-maximize-sum-of-two-non-overlapping-fragments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximize-sum-of-two-non-overlapping-fragments) | Dec 24, 2024 | | **Amazon** | [Similar Text Substring Count](https://www.fastprep.io/problems/1.amazon-similar-text-substring-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-similar-text-substring-count) | Dec 23, 2024 | | **Capital One** | [Sum Digits Until One](https://www.fastprep.io/problems/capitalone-sum-digits-until-one) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capitalone-sum-digits-until-one) | Dec 23, 2024 | | **IBM** | [Min Cost](https://www.fastprep.io/problems/ibm-get-minimum-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-minimum-cost) | Dec 23, 2024 | | **IBM** | [Min Difference](https://www.fastprep.io/problems/ibm-minimum-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-minimum-difference) | Dec 23, 2024 | | **IBM** | [Max Profit](https://www.fastprep.io/problems/ibm-max-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-max-profit) | Dec 23, 2024 | | **Amazon** | [Max Transfer Rate](https://www.fastprep.io/problems/amazon-max-transfer-rate) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-max-transfer-rate) | Dec 22, 2024 | | **Amazon** | [Get Final Location](https://www.fastprep.io/problems/amazon-get-final-locations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-final-locations) | Dec 22, 2024 | | **Amazon** | [Get Number of Redundancy Free](https://www.fastprep.io/problems/1.amazon-get-number-redundancy-free) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-number-redundancy-free) | Dec 22, 2024 | | **Amazon** | [Get Stable Periods Count](https://www.fastprep.io/problems/amazon-get-stable-periods-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-stable-periods-count) | Dec 22, 2024 | | **Amazon** | [Maximize Total Memory Points](https://www.fastprep.io/problems/1.amazon-maximize-total-memory-points) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-maximize-total-memory-points) | Dec 22, 2024 | | **Amazon** | [Get Min Removals](https://www.fastprep.io/problems/1.amazon-get-min-removals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-min-removals) | Dec 22, 2024 | | **Amazon** | [Get Relative Ratings](https://www.fastprep.io/problems/1.amazon-get-relative-ratings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-relative-ratings) | Dec 22, 2024 | | **Amazon** | [Calculate Max Profit](https://www.fastprep.io/problems/amazon-calculate-max-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-calculate-max-profit) | Dec 22, 2024 | | **Google** | [Max Break Time](https://www.fastprep.io/problems/google-reschedule-k-meetings-to-find-maximum-break-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-reschedule-k-meetings-to-find-maximum-break-time) | Dec 22, 2024 | | **Microsoft** | [Three Partition Array](https://www.fastprep.io/problems/microsoft-three-partition-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-three-partition-array) | Dec 22, 2024 | | **Amazon** | [Min Operations](https://www.fastprep.io/problems/amazon-make-array-zero-by-subtracting-equal-amounts) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-make-array-zero-by-subtracting-equal-amounts) | Dec 20, 2024 | | **Amazon** | [Get Max Stability](https://www.fastprep.io/problems/amazon-minimum-swaps-to-make-palindrome) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-swaps-to-make-palindrome) | Dec 20, 2024 | | **Amazon** | [Get Max Stability](https://www.fastprep.io/problems/amazon-get-max-stability) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-stability) | Dec 20, 2024 | | **Google** | [Set Total Palindrome Tranformation Cost](https://www.fastprep.io/problems/google-set-total-palindrome-transformation-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-set-total-palindrome-transformation-cost) | Dec 20, 2024 | | **Trend Micro** | [Change Segment Colors](https://www.fastprep.io/problems/trendmicro-change-segment-colors) | Coding | [![Practice][p]](https://www.fastprep.io/problems/trendmicro-change-segment-colors) | Dec 20, 2024 | | **Google** | [Find Optimal Input](https://www.fastprep.io/problems/google-find-optimal-input) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-optimal-input) | Dec 18, 2024 | | **Google** | [Calculate Min Satellites Required](https://www.fastprep.io/problems/google-calculate-minimum-satellites-required) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-calculate-minimum-satellites-required) | Dec 18, 2024 | | **Amazon** | [Find Length of Longest Self-Sufficient Proper Substring](https://www.fastprep.io/problems/1.amazon-find-length-of-longest-self-sufficient-proper-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-length-of-longest-self-sufficient-proper-substring) | Dec 16, 2024 | | **Uber** | [Regional Maximum Finder](https://www.fastprep.io/problems/uber-regional-maximum-finder) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-regional-maximum-finder) | Dec 16, 2024 | | **Uber** | [Command Frequency Counter](https://www.fastprep.io/problems/uber-command-frequency-counter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-command-frequency-counter) | Dec 16, 2024 | | **Uber** | [Valid String Check](https://www.fastprep.io/problems/uber-valid-string-check) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-valid-string-check) | Dec 16, 2024 | | **Microsoft** | [Min Replacements Required to Make a Matrix Balanced](https://www.fastprep.io/problems/microsoft-minimum-replacements-required-to-make-a-matrix-balanced) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-replacements-required-to-make-a-matrix-balanced) | Dec 16, 2024 | | **Microsoft** | [Max Sum With Same First And Last Digit](https://www.fastprep.io/problems/microsoft-find-max-sum-with-same-first-and-last-digit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-find-max-sum-with-same-first-and-last-digit) | Dec 16, 2024 | | **GitHub** | [Bridge Car Weight](https://www.fastprep.io/problems/github-brdige-car-weight) | Coding | [![Practice][p]](https://www.fastprep.io/problems/github-brdige-car-weight) | Dec 16, 2024 | | **Amazon** | [Find the longest possible regular expression](https://www.fastprep.io/problems/1.amazon-find-longest-regex) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-longest-regex) | Dec 12, 2024 | | **Amazon** | [Get Min Value](https://www.fastprep.io/problems/amazon-get-minimum-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-minimum-value) | Dec 11, 2024 | | **Amazon** | [Get Max Skill Sum](https://www.fastprep.io/problems/amazon-get-max-skill-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-skill-sum) | Dec 11, 2024 | | **Amazon** | [Count Distinct Categories](https://www.fastprep.io/problems/1.amazon-count-distinct-categories) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-count-distinct-categories) | Dec 11, 2024 | | **Amazon** | [Find Number](https://www.fastprep.io/problems/amazon-find-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-number) | Dec 10, 2024 | | **Amazon** | [Get Min Removal](https://www.fastprep.io/problems/amazon-get-min-removal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-removal) | Dec 10, 2024 | | **JP Morgan** | [Find Total Cost](https://www.fastprep.io/problems/jpmorgan-find-total-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-find-total-cost) | Dec 10, 2024 | | **Microsoft** | [Max Num Of Prduced Car](https://www.fastprep.io/problems/microsoft-max-num-of-produced-cars) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-max-num-of-produced-cars) | Dec 10, 2024 | | **Amazon** | [Find Lexicographically Smallest String](https://www.fastprep.io/problems/amazon-find-lexicographically-smallest-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-lexicographically-smallest-string) | Dec 08, 2024 | | **Amazon** | [Find Password Strength](https://www.fastprep.io/problems/amazon-find-password-strength) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-password-strength) | Dec 08, 2024 | | **Amazon** | [Get Max Sum Arr](https://www.fastprep.io/problems/1.amazon-get-max-sum-arr) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-max-sum-arr) | Dec 08, 2024 | | **Amazon** | [Perform Queries](https://www.fastprep.io/problems/amazon-perform-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-perform-queries) | Dec 08, 2024 | | **Quora** | [Count Powers Of K](https://www.fastprep.io/problems/quora-count-powers-of-k) | Coding | [![Practice][p]](https://www.fastprep.io/problems/quora-count-powers-of-k) | Dec 06, 2024 | | **Quora** | [Determine the Elimination Order](https://www.fastprep.io/problems/quora-determine-the-elimination-order) | Coding | [![Practice][p]](https://www.fastprep.io/problems/quora-determine-the-elimination-order) | Dec 06, 2024 | | **Wells Fargo** | [Get Min Length](https://www.fastprep.io/problems/wellsfargo-get-min-length) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wellsfargo-get-min-length) | Dec 06, 2024 | | **Amazon** | [Data Dependence Sum](https://www.fastprep.io/problems/amazon-get-data-dependence-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-data-dependence-sum) | Dec 03, 2024 | | **Amazon** | [Longest Matching Regex](https://www.fastprep.io/problems/1.amazon-get-longest-match) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-longest-match) | Dec 03, 2024 | | **Amazon** | [Min Connection Cost](https://www.fastprep.io/problems/1.amazon-get-min-connection-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-min-connection-cost) | Dec 03, 2024 | | **Amazon** | [Min Operations](https://www.fastprep.io/problems/amazon-get-min-operations2) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-operations2) | Dec 03, 2024 | | **Amazon** | [Min Cost](https://www.fastprep.io/problems/1.amazon-min-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-min-cost) | Dec 03, 2024 | | **TikTok** | [Interesting Watch Sequence](https://www.fastprep.io/problems/tiktok-interesting-watch-sequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-interesting-watch-sequence) | Dec 03, 2024 | | **IBM** | [Get Final String](https://www.fastprep.io/problems/ibm-get-final-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-final-string) | Dec 03, 2024 | | **Postman** | [Design a Multi-Provider Weather Forecast Service](https://www.fastprep.io/system-design/multi-provider-weather-forecast-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/multi-provider-weather-forecast-service) | Nov 29, 2024 | | **Amazon** | [Sum of All Days Numbers on Which the Data of the Xth Will Be Dependent](https://www.fastprep.io/problems/amazon-sum-of-all-days-numbers-on-which-the-data-of-the-xth-will-be-dependent) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-sum-of-all-days-numbers-on-which-the-data-of-the-xth-will-be-dependent) | Nov 27, 2024 | | **Amazon** | [Optimize Identifiers](https://www.fastprep.io/problems/amazon-optimize-identifiers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-optimize-identifiers) | Nov 25, 2024 | | **Stripe** | [Card Range Obfuscation Part 4](https://www.fastprep.io/problems/stripe-card-range-obfuscation-part4) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-card-range-obfuscation-part4) | Nov 25, 2024 | | **Stripe** | [Card Range Obfuscation Part 3](https://www.fastprep.io/problems/stripe-card-range-obfuscation-part3) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-card-range-obfuscation-part3) | Nov 25, 2024 | | **Stripe** | [Card Range Obfuscation Part 2](https://www.fastprep.io/problems/stripe-card-range-obfuscation-part2) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-card-range-obfuscation-part2) | Nov 25, 2024 | | **Stripe** | [Card Range Obfuscation Part 1](https://www.fastprep.io/problems/stripe-card-range-obfuscation-part1) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-card-range-obfuscation-part1) | Nov 25, 2024 | | **Amazon** | [Min Insertions](https://www.fastprep.io/problems/amazon-minimum-insertions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-insertions) | Nov 24, 2024 | | **Amazon** | [Find Encrypted Number](https://www.fastprep.io/problems/1.amazon-find-encrypted-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-encrypted-number) | Nov 24, 2024 | | **Amazon** | [Find Obfuscate Message](https://www.fastprep.io/problems/1.amazon-find-obfuscate-message) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-obfuscate-message) | Nov 24, 2024 | | **TikTok** | [Create Maximum Collaborations](https://www.fastprep.io/problems/tiktok-create-maximum-collaborations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-create-maximum-collaborations) | Nov 24, 2024 | | **TikTok** | [Maximize Processing Power](https://www.fastprep.io/problems/tiktok-maximize-processing-power) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-maximize-processing-power) | Nov 24, 2024 | | **IBM** | [Get Query Answers](https://www.fastprep.io/problems/ibm-get-query-answers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-query-answers) | Nov 24, 2024 | | **IBM** | [Card Packs](https://www.fastprep.io/problems/ibm-card-packets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-card-packets) | Nov 24, 2024 | | **Amazon** | [Min Chars to Append](https://www.fastprep.io/problems/amazon-determine-minimum-characters-to-append) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-determine-minimum-characters-to-append) | Nov 23, 2024 | | **Cisco** | [Find Max Difference](https://www.fastprep.io/problems/cisco-find-maximum-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-maximum-difference) | Nov 21, 2024 | | **Amazon** | [Reduce Memory Usage](https://www.fastprep.io/problems/amazon-reduce-memory-usage) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-reduce-memory-usage) | Nov 20, 2024 | | **Salesforce** | [Minimize Total Input Cost](https://www.fastprep.io/problems/salesforce-minimize-total-input-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-minimize-total-input-cost) | Nov 20, 2024 | | **Google** | [Get Meeting Intervals](https://www.fastprep.io/problems/google-get-meeting-intervals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-get-meeting-intervals) | Nov 20, 2024 | | **Amazon** | [Get Min Change](https://www.fastprep.io/problems/amazon-get-minimum-changes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-minimum-changes) | Nov 18, 2024 | | **Amazon** | [Calculate Truck Distance](https://www.fastprep.io/problems/amazon-calculate-truck-distance) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-calculate-truck-distance) | Nov 18, 2024 | | **Amazon** | [Find Smallest Appealing](https://www.fastprep.io/problems/2.amazon-find-smallest-appealing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/2.amazon-find-smallest-appealing) | Nov 18, 2024 | | **Rubrik** | [Get Min Operations](https://www.fastprep.io/problems/rubrik-get-min-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-get-min-operations) | Nov 18, 2024 | | **Rubrik** | [Get Triplet Count](https://www.fastprep.io/problems/rubrik-get-triplet-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-get-triplet-count) | Nov 18, 2024 | | **Rubrik** | [Find Pod Count](https://www.fastprep.io/problems/rubrik-find-pod-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-find-pod-count) | Nov 18, 2024 | | **Amazon** | [Find Ideal Days](https://www.fastprep.io/problems/amazon-find-ideal-days) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-ideal-days) | Nov 17, 2024 | | **Amazon** | [Sum of Distinct Categories](https://www.fastprep.io/problems/1.amazon-sum-of-distinct-categories) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-sum-of-distinct-categories) | Nov 17, 2024 | | **TikTok** | [Calculate Max Processing Throughput](https://www.fastprep.io/problems/tiktok-calculate-max-processing-throughput) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-calculate-max-processing-throughput) | Nov 17, 2024 | | **TikTok** | [Get Total Impact](https://www.fastprep.io/problems/tiktok-get-total-impact) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-get-total-impact) | Nov 17, 2024 | | **TikTok** | [Max Profits](https://www.fastprep.io/problems/tiktok-max-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-max-profit) | Nov 17, 2024 | | **Paypal** | [Find Min Price](https://www.fastprep.io/problems/paypal-find-minimum-price) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypal-find-minimum-price) | Nov 17, 2024 | | **Amazon** | [Get Min Moves](https://www.fastprep.io/problems/amazon-get-min-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-moves) | Nov 14, 2024 | | **Amazon** | [Minimize Effort](https://www.fastprep.io/problems/amazon-minimize-effort) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimize-effort) | Nov 14, 2024 | | **Amazon** | [Get Max Discount Pairs](https://www.fastprep.io/problems/amazon-get-max-discount-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-discount-pairs) | Nov 13, 2024 | | **Google** | [Get Components in Forest](https://www.fastprep.io/problems/google-get-components-in-forest) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-get-components-in-forest) | Nov 13, 2024 | | **Google** | [Find Max Frequency](https://www.fastprep.io/problems/google-find-maximum-frequency-of-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-maximum-frequency-of-number) | Nov 13, 2024 | | **Microsoft** | [Reverse An Integer](https://www.fastprep.io/problems/microsoft-reverse-an-integer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-reverse-an-integer) | Nov 13, 2024 | | **Amazon** | [Rooks Left](https://www.fastprep.io/problems/amazon-rooks-left) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-rooks-left) | Nov 12, 2024 | | **Google** | [Longest Non-Decreasing Subarray](https://www.fastprep.io/problems/google-find-maximum-length-of-non-decreasing-subarray-follow-up) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-maximum-length-of-non-decreasing-subarray-follow-up) | Nov 12, 2024 | | **Google** | [Find Maximum Length Of Non-Decreasing Subarray](https://www.fastprep.io/problems/google-find-maximum-length-of-non-decreasing-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-maximum-length-of-non-decreasing-subarray) | Nov 12, 2024 | | **Amazon** | [Optimize Identifiers](https://www.fastprep.io/problems/amazon-optimized-identifiers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-optimized-identifiers) | Nov 09, 2024 | | **Google** | [Transform String](https://www.fastprep.io/problems/google-transform-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-transform-string) | Nov 09, 2024 | | **Google** | [Build Maximum Integer](https://www.fastprep.io/problems/google-build-maximum-integer-from-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-build-maximum-integer-from-subarray) | Nov 09, 2024 | | **Amazon** | [Is Special Sequence](https://www.fastprep.io/problems/1.amazon-is-special-sequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-is-special-sequence) | Nov 05, 2024 | | **Google** | [Maximize Points](https://www.fastprep.io/problems/google-maximize-points) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-maximize-points) | Nov 05, 2024 | | **Google** | [Find Contiguous Subarray With Largest Min Plux Max](https://www.fastprep.io/problems/google-find-contiguous-subarray-with-largest-min-plus-max) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-contiguous-subarray-with-largest-min-plus-max) | Nov 05, 2024 | | **Amazon** | [Find Min Variance](https://www.fastprep.io/problems/amazon-find-minimum-possible-variance) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-possible-variance) | Oct 30, 2024 | | **Amazon** | [Find Min Time Required](https://www.fastprep.io/problems/amazon-find-minimum-time-required) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-time-required) | Oct 30, 2024 | | **Amazon** | [Cleanup Dataset](https://www.fastprep.io/problems/amazon-cleanup-dataset) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-cleanup-dataset) | Oct 30, 2024 | | **Salesforce** | [Max Sum of Processed Time](https://www.fastprep.io/problems/salesforce-maximize-sum-of-processed-times) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-maximize-sum-of-processed-times) | Oct 30, 2024 | | **Google** | [Min Absolute Sum](https://www.fastprep.io/problems/google-min-absolute-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-min-absolute-sum) | Oct 30, 2024 | | **Google** | [Num of Ways to Split Array](https://www.fastprep.io/problems/google-find-number-of-ways-to-split-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-number-of-ways-to-split-array) | Oct 30, 2024 | | **DoorDash** | [Team Formation](https://www.fastprep.io/problems/doordash-team-formation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/doordash-team-formation) | Oct 30, 2024 | | **DoorDash** | [Get Final Price](https://www.fastprep.io/problems/doordash-get-final-price) | Coding | [![Practice][p]](https://www.fastprep.io/problems/doordash-get-final-price) | Oct 30, 2024 | | **IBM** | [Count Teams](https://www.fastprep.io/problems/ibm-count-teams) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-teams) | Oct 30, 2024 | | **Amazon** | [Calculate Warehouse Efficiency](https://www.fastprep.io/problems/amazon-calculate-warehouse-efficiency) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-calculate-warehouse-efficiency) | Oct 28, 2024 | | **Amazon** | [Make All Elements Distinct](https://www.fastprep.io/problems/amazon-make-all-elements-distinct) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-make-all-elements-distinct) | Oct 28, 2024 | | **Amazon** | [Maximize Similarity](https://www.fastprep.io/problems/amazon-maximize-similarity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximize-similarity) | Oct 28, 2024 | | **Amazon** | [Find Networking Calls](https://www.fastprep.io/problems/amazon-find-network-calls) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-network-calls) | Oct 28, 2024 | | **Amazon** | [Get Smaller Items](https://www.fastprep.io/problems/amazon-get-smaller-items) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-smaller-items) | Oct 22, 2024 | | **Amazon** | [About Mortgage](https://www.fastprep.io/problems/amazon-maximum-number-of-days-to-survive) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-number-of-days-to-survive) | Oct 22, 2024 | | **Amazon** | [Get Min Cost of Purchasing Books](https://www.fastprep.io/problems/amazon-get-min-cost-book) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-cost-book) | Oct 22, 2024 | | **Amazon** | [Schedule Tasks](https://www.fastprep.io/problems/amazon-schedule-tasks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-schedule-tasks) | Oct 22, 2024 | | **Walmart** | [Candy Bars](https://www.fastprep.io/problems/walmart-minimum-moves-to-equal-candy-bars) | Coding | [![Practice][p]](https://www.fastprep.io/problems/walmart-minimum-moves-to-equal-candy-bars) | Oct 22, 2024 | | **Cisco** | [Water Jug](https://www.fastprep.io/problems/cisco-water-jug-problem) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-water-jug-problem) | Oct 22, 2024 | | **Paypal** | [Find Min Price to Spend](https://www.fastprep.io/problems/paypal-find-minimum-price-to-spend) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypal-find-minimum-price-to-spend) | Oct 22, 2024 | | **TikTok** | [Count Balanced Clilps](https://www.fastprep.io/problems/tiktok-count-balanced-clips) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-balanced-clips) | Oct 21, 2024 | | **Patreon** | [Sum of Subarray Regions](https://www.fastprep.io/problems/patreon-sum-of-subarray-regions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/patreon-sum-of-subarray-regions) | Oct 21, 2024 | | **Amazon** | [Planning the Campaign](https://www.fastprep.io/problems/amazon-minimum-weekly-input) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-weekly-input) | Oct 20, 2024 | | **TikTok** | [Server Network Optimizations](https://www.fastprep.io/problems/tiktok-server-network-optimization) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-server-network-optimization) | Oct 20, 2024 | | **Amazon** | [Get Max Programs](https://www.fastprep.io/problems/amazon-get-max-programs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-programs) | Oct 19, 2024 | | **Amazon** | [Find Minimum Time](https://www.fastprep.io/problems/amazon-find-minimum-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-time) | Oct 19, 2024 | | **Amazon** | [Get Max Charge](https://www.fastprep.io/problems/amazon-get-max-charge) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-charge) | Oct 11, 2024 | | **Amazon** | [Min Time to Create Beautiful Canvas](https://www.fastprep.io/problems/amazon-find-minimum-time-to-create-beautiful-canvas) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-time-to-create-beautiful-canvas) | Oct 11, 2024 | | **Amazon** | [Rearrange Binary String](https://www.fastprep.io/problems/amazon-rearrange-binary-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-rearrange-binary-string) | Oct 11, 2024 | | **Amazon** | [Sort Permutation](https://www.fastprep.io/problems/amazon-can-sort-permutation-in-given-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-can-sort-permutation-in-given-moves) | Oct 11, 2024 | | **Wells Fargo** | [Allocate Wells](https://www.fastprep.io/problems/wellsfargo-fair-distribution) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wellsfargo-fair-distribution) | Oct 09, 2024 | | **Wells Fargo** | [Find Affected Systems](https://www.fastprep.io/problems/wellsfargo-shot-on-mi-a3-ai-triple-camera) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wellsfargo-shot-on-mi-a3-ai-triple-camera) | Oct 09, 2024 | | **Wells Fargo** | [Max Distance](https://www.fastprep.io/problems/wellsfargo-find-maximum-distance) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wellsfargo-find-maximum-distance) | Oct 09, 2024 | | **Wells Fargo** | [Count Operations](https://www.fastprep.io/problems/wellsfargo-count-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wellsfargo-count-operations) | Oct 09, 2024 | | **Wells Fargo** | [Get Substring](https://www.fastprep.io/problems/wellsfargo-get-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wellsfargo-get-substring) | Oct 09, 2024 | | **Wells Fargo** | [Sum of Compressed Num for All Subarrays](https://www.fastprep.io/problems/wellsfargo-sum-of-compressed-number-for-all-subarrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wellsfargo-sum-of-compressed-number-for-all-subarrays) | Oct 09, 2024 | | **Amazon** | [Get Longest Substrings](https://www.fastprep.io/problems/1.amazon-get-longest-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-longest-substring) | Oct 08, 2024 | | **Amazon** | [Get Max Alternating Music](https://www.fastprep.io/problems/amazon-get-max-alternating-music) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-alternating-music) | Oct 08, 2024 | | **Amazon** | [Task Scheduler](https://www.fastprep.io/problems/amazon-task-scheduler) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-task-scheduler) | Oct 08, 2024 | | **Amazon** | [Get Min Score](https://www.fastprep.io/problems/1.amazon-get-min-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-min-score) | Oct 08, 2024 | | **TikTok** | [Max Engagement](https://www.fastprep.io/problems/tiktok-maximize-engagement) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-maximize-engagement) | Oct 08, 2024 | | **TikTok** | [Find Max Squad Size](https://www.fastprep.io/problems/tiktok-find-max-squad-size) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-max-squad-size) | Oct 08, 2024 | | **Expedia** | [Rank Secondary Popularity](https://www.fastprep.io/problems/expedia-rank-songs-by-popularity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/expedia-rank-songs-by-popularity) | Oct 08, 2024 | | **Expedia** | [Get Min Steps](https://www.fastprep.io/problems/expedia-get-min-steps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/expedia-get-min-steps) | Oct 08, 2024 | | **Oracle** | [Min Diff](https://www.fastprep.io/problems/oracle-find-circle-num) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-find-circle-num) | Oct 07, 2024 | | **Amazon** | [Special String](https://www.fastprep.io/problems/amazon-get-special-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-special-string) | Oct 05, 2024 | | **Cisco** | [Identify the Non Twin Person](https://www.fastprep.io/problems/cisco-identify-the-non-twin-person) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-identify-the-non-twin-person) | Oct 04, 2024 | | **Cisco** | [Rotate the Matrix](https://www.fastprep.io/problems/cisco-rotate-matrix) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-rotate-matrix) | Oct 04, 2024 | | **Expedia** | [Get Max Efficiency](https://www.fastprep.io/problems/expedia-get-max-efficiency) | Coding | [![Practice][p]](https://www.fastprep.io/problems/expedia-get-max-efficiency) | Oct 04, 2024 | | **Expedia** | [Calculate the Sum](https://www.fastprep.io/problems/expedia-calculate-the-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/expedia-calculate-the-sum) | Oct 04, 2024 | | **Rubrik** | [Enhance Luminescence](https://www.fastprep.io/problems/rubrik-enhance-luminescence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-enhance-luminescence) | Sep 29, 2024 | | **Rubrik** | [Maximize Stellar Gradient](https://www.fastprep.io/problems/rubrik-maximize-stellar-gradient) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-maximize-stellar-gradient) | Sep 29, 2024 | | **Rubrik** | [Salvage Humankind](https://www.fastprep.io/problems/rubrik-salvage-humankind) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-salvage-humankind) | Sep 29, 2024 | | **Rubrik** | [Mike and Gems](https://www.fastprep.io/problems/rubrik-mike-and-gems) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-mike-and-gems) | Sep 29, 2024 | | **ZipRecruiter** | [Fishing](https://www.fastprep.io/problems/ziprecruiter-caught-fish) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-caught-fish) | Sep 29, 2024 | | **Deutsche Bank** | [Generate Lexicographically Smallest String](https://www.fastprep.io/problems/deutsche-bank-generate-lexicographically-smallest-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deutsche-bank-generate-lexicographically-smallest-string) | Sep 29, 2024 | | **Squarepoint** | [Empty Shelf](https://www.fastprep.io/problems/squarepoint-empty-shelf) | Coding | [![Practice][p]](https://www.fastprep.io/problems/squarepoint-empty-shelf) | Sep 29, 2024 | | **Squarepoint** | [Suggested Products](https://www.fastprep.io/problems/squarepoint-suggested-products) | Coding | [![Practice][p]](https://www.fastprep.io/problems/squarepoint-suggested-products) | Sep 29, 2024 | | **OpenAI** | [Maixmize the Hits](https://www.fastprep.io/problems/openai-maximize-the-hits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/openai-maximize-the-hits) | Sep 28, 2024 | | **Amazon** | [Find Days S2 Subsequence of S1](https://www.fastprep.io/problems/amazon-find-days-s2-subsequence-of-s1) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-days-s2-subsequence-of-s1) | Sep 28, 2024 | | **Meta** | [ Min Obstacles to Allow Figure Fall ](https://www.fastprep.io/problems/mt-minimum-obstacles-to-remove-to-allow-figure-fall) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-minimum-obstacles-to-remove-to-allow-figure-fall) | Sep 28, 2024 | | **Meta** | [ Find How Many Subarrays Match the Pattern ](https://www.fastprep.io/problems/mt-find-how-many-subarrays-match-the-pattern) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-find-how-many-subarrays-match-the-pattern) | Sep 28, 2024 | | **Meta** | [ Count Three Sisters ](https://www.fastprep.io/problems/mt-count-three-sisters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-count-three-sisters) | Sep 28, 2024 | | **Hudson River Trading** | [Future Stock Price](https://www.fastprep.io/problems/hudsonriver-maximum-amount-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hudsonriver-maximum-amount-profit) | Sep 28, 2024 | | **IBM** | [Count Similar Pairs](https://www.fastprep.io/problems/ibm-count-similar-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-count-similar-pairs) | Sep 28, 2024 | | **IBM** | [Max Subject Number](https://www.fastprep.io/problems/ibm-max-subjects-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-max-subjects-number) | Sep 28, 2024 | | **IBM** | [Maximum Efficiency](https://www.fastprep.io/problems/ibm-maximum-efficiency) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-maximum-efficiency) | Sep 28, 2024 | | **Cisco** | [Pilot Drops Food Packet](https://www.fastprep.io/problems/cisco-find-maximum-number-of-drop-points-covered) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-maximum-number-of-drop-points-covered) | Sep 28, 2024 | | **Wayfair** | [Num of Divisible Substrings](https://www.fastprep.io/problems/wayfair-number-of-divisible-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wayfair-number-of-divisible-substrings) | Sep 28, 2024 | | **Wayfair** | [DFS Substring of A String](https://www.fastprep.io/problems/wayfair-dfs-subsequences-of-a-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wayfair-dfs-subsequences-of-a-string) | Sep 28, 2024 | | **Elastic** | [Build a Search Index Web Service](https://www.fastprep.io/project-coding/elastic-search-index-web-service) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/elastic-search-index-web-service) | Sep 28, 2024 | | **Amazon** | [Find Subarray with Minimum Distinct Integers](https://www.fastprep.io/problems/amazon-find-subarray-with-minimum-distinct-integers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-subarray-with-minimum-distinct-integers) | Sep 27, 2024 | | **IBM** | [Min Operations to Make All Elements Equal](https://www.fastprep.io/problems/ibm-minimum-operations-to-make-all-elements-equal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-minimum-operations-to-make-all-elements-equal) | Sep 27, 2024 | | **IBM** | [Get Minimum Operation Count](https://www.fastprep.io/problems/ibm-get-minimum-operation-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-minimum-operation-count) | Sep 27, 2024 | | **Toshiba** | [Minimize Multiples of Three](https://www.fastprep.io/problems/toshiba-minimize-multiples-of-three) | Coding | [![Practice][p]](https://www.fastprep.io/problems/toshiba-minimize-multiples-of-three) | Sep 27, 2024 | | **Amazon** | [Maximum Quality Sum](https://www.fastprep.io/problems/amazon-maximum-quality-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-quality-sum) | Sep 26, 2024 | | **Amazon** | [Minimize Warehouse Transfer Cost](https://www.fastprep.io/problems/amazon-minimize-warehouse-transfer-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimize-warehouse-transfer-cost) | Sep 26, 2024 | | **Amazon** | [Find Sum of Beauties](https://www.fastprep.io/problems/amazon-find-sum-of-beauties) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-sum-of-beauties) | Sep 26, 2024 | | **Amazon** | [Longest Perfect Anagrams](https://www.fastprep.io/problems/amazon-longest-perfect-anagrams) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-longest-perfect-anagrams) | Sep 26, 2024 | | **Amazon** | [Find Maximum Calories](https://www.fastprep.io/problems/amazon-find-maximum-calories) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-maximum-calories) | Sep 26, 2024 | | **Salesforce** | [Find Minimum Idleness](https://www.fastprep.io/problems/salesforce-find-minimum-idleness) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-find-minimum-idleness) | Sep 26, 2024 | | **Salesforce** | [Get Maximum Sum of Strengths](https://www.fastprep.io/problems/salesforce-get-maximum-sum-of-strengths) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-get-maximum-sum-of-strengths) | Sep 26, 2024 | | **Agoda** | [Maximize Sum of Processed Times](https://www.fastprep.io/problems/agoda-maximize-sum-of-processed-times) | Coding | [![Practice][p]](https://www.fastprep.io/problems/agoda-maximize-sum-of-processed-times) | Sep 26, 2024 | | **BNP** | [Piles of Boxes](https://www.fastprep.io/problems/bnp-piles-of-boxes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bnp-piles-of-boxes) | Sep 26, 2024 | | **BNP** | [Romanizer](https://www.fastprep.io/problems/bnp-romanizer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bnp-romanizer) | Sep 26, 2024 | | **Palantir** | [Minimize Path Value](https://www.fastprep.io/problems/palantir-minimize-path-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/palantir-minimize-path-value) | Sep 26, 2024 | | **Palantir** | [Minimal Operations](https://www.fastprep.io/problems/palantir-minimal-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/palantir-minimal-operations) | Sep 26, 2024 | | **JP Morgan** | [Slowest Keys](https://www.fastprep.io/problems/jpmorgan-slowest-key) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-slowest-key) | Sep 25, 2024 | | **JP Morgan** | [Get Merged Intervals](https://www.fastprep.io/problems/jpmorgan-get-merged-intervals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-merged-intervals) | Sep 25, 2024 | | **Akuna** | [Update Release Scheduler](https://www.fastprep.io/problems/akuna-update-release-scheduler) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-update-release-scheduler) | Sep 25, 2024 | | **Akuna** | [Delivery Management System](https://www.fastprep.io/problems/akuna-delivery-management-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-delivery-management-system) | Sep 25, 2024 | | **Akuna** | [Array Challenge](https://www.fastprep.io/problems/akuna-array-challenge) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-array-challenge) | Sep 25, 2024 | | **Roblox** | [Valid Pairs](https://www.fastprep.io/problems/roblox-valid-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-valid-pairs) | Sep 25, 2024 | | **Roblox** | [Schedule Meeting](https://www.fastprep.io/problems/roblox-schedule-meeting) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-schedule-meeting) | Sep 25, 2024 | | **Databricks** | [Write L Matrix](https://www.fastprep.io/problems/databricks-write-l-matrix) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-write-l-matrix) | Sep 25, 2024 | | **Databricks** | [Longest Common Prefix of Number Pairs](https://www.fastprep.io/problems/databricks-longest-common-prefix-of-number-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-longest-common-prefix-of-number-pairs) | Sep 25, 2024 | | **Databricks** | [Diff Between Sums of Positions](https://www.fastprep.io/problems/databricks-diff-between-sums-of-positions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-diff-between-sums-of-positions) | Sep 25, 2024 | | **Databricks** | [Subarray Counting](https://www.fastprep.io/problems/databricks-subarray-counting) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-subarray-counting) | Sep 25, 2024 | | **IBM** | [Equalize Team Size](https://www.fastprep.io/problems/ibm-equalize-team-size) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-equalize-team-size) | Sep 25, 2024 | | **IBM** | [Max Index](https://www.fastprep.io/problems/ibm-max-index) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-max-index) | Sep 25, 2024 | | **Arista Networks** | [Generate Matrix B](https://www.fastprep.io/problems/aristanetworks-generate-matrix-b) | Coding | [![Practice][p]](https://www.fastprep.io/problems/aristanetworks-generate-matrix-b) | Sep 24, 2024 | | **Salesforce** | [Closest Subsequence Sum](https://www.fastprep.io/problems/salesforce-closest-subsequence-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-closest-subsequence-sum) | Sep 23, 2024 | | **Google** | [Min Moves](https://www.fastprep.io/problems/google-focus-on-efficiency) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-focus-on-efficiency) | Sep 23, 2024 | | **Google** | [Largest Number Possible](https://www.fastprep.io/problems/google-largest-number-possible) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-largest-number-possible) | Sep 23, 2024 | | **IBM** | [Min Operations Required](https://www.fastprep.io/problems/ibm-minimum-operations-required) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-minimum-operations-required) | Sep 23, 2024 | | **Microsoft** | [XOR Coloring](https://www.fastprep.io/problems/microsoft-xor-coloring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-xor-coloring) | Sep 23, 2024 | | **Microsoft** | [Count Good Arrays](https://www.fastprep.io/problems/microsoft-great-subsequences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-great-subsequences) | Sep 23, 2024 | | **Microsoft** | [Great Subsequences](https://www.fastprep.io/problems/microsoft-to-good-arrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-to-good-arrays) | Sep 23, 2024 | | **DE Shaw** | [Count Incremovable Subarrays](https://www.fastprep.io/problems/deshaw-count-the-number-of-incremovable-subarrays-ii) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-count-the-number-of-incremovable-subarrays-ii) | Sep 23, 2024 | | **TikTok** | [TikTok Server Optimization](https://www.fastprep.io/problems/tiktok-optimize-tiktok-routes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-optimize-tiktok-routes) | Sep 21, 2024 | | **TikTok** | [Tiktok Viral Challenge](https://www.fastprep.io/problems/tiktok-count-viral-combinations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-viral-combinations) | Sep 21, 2024 | | **TikTok** | [Optimize TikTok Reels Viewing](https://www.fastprep.io/problems/tiktok-optimize-tiktok-watch-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-optimize-tiktok-watch-time) | Sep 21, 2024 | | **Salesforce** | [Min Difference](https://www.fastprep.io/problems/salesforce-minimum-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-minimum-difference) | Sep 20, 2024 | | **Salesforce** | [Get Node to Remove](https://www.fastprep.io/problems/salesforce-get-node-to-remove) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-get-node-to-remove) | Sep 20, 2024 | | **Salesforce** | [Min Dev Time](https://www.fastprep.io/problems/salesforce-get-minimum-development-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-get-minimum-development-time) | Sep 20, 2024 | | **Google** | [Transformation Steps](https://www.fastprep.io/problems/google-array-transformation-steps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-array-transformation-steps) | Sep 20, 2024 | | **Google** | [Find Largest Number](https://www.fastprep.io/problems/google-find-largest-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-largest-number) | Sep 20, 2024 | | **Hudson River Trading** | [Count Fancy Numbers](https://www.fastprep.io/problems/hudsonriver-count-fancy-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hudsonriver-count-fancy-numbers) | Sep 20, 2024 | | **TikTok** | [Get Min Total Cost](https://www.fastprep.io/problems/tiktok-get-minimum-total-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-get-minimum-total-cost) | Sep 20, 2024 | | **IBM** | [Rover Move](https://www.fastprep.io/problems/ibm-rover-move) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-rover-move) | Sep 20, 2024 | | **Goldman Sachs** | [Get Min Moves](https://www.fastprep.io/problems/goldman-get-minimum-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-get-minimum-moves) | Sep 20, 2024 | | **Cisco** | [Find Out Prime or Composite](https://www.fastprep.io/problems/cisco-find-out-prime-or-composite) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-out-prime-or-composite) | Sep 20, 2024 | | **Cisco** | [Compact List](https://www.fastprep.io/problems/cisco-compact-the-list) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-compact-the-list) | Sep 20, 2024 | | **Cisco** | [Convert Password](https://www.fastprep.io/problems/cisco-convert-password) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-convert-password) | Sep 20, 2024 | | **Codeium** | [Eric's Sequence](https://www.fastprep.io/problems/codeium-erics-sequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/codeium-erics-sequence) | Sep 20, 2024 | | **Amazon** | [Maximum Possible Racers](https://www.fastprep.io/problems/amazon-maximum-possible-racers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-possible-racers) | Sep 19, 2024 | | **Amazon** | [Calculate Total Distrance Travelled](https://www.fastprep.io/problems/amazon-calculate-total-distance-travelled) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-calculate-total-distance-travelled) | Sep 19, 2024 | | **Salesforce** | [Find All Pairs of Integers](https://www.fastprep.io/problems/salesforce-find-all-pairs-of-integers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-find-all-pairs-of-integers) | Sep 19, 2024 | | **Salesforce** | [Longest Substring](https://www.fastprep.io/problems/salesforce-minimize-length-of-longest-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-minimize-length-of-longest-substring) | Sep 19, 2024 | | **Salesforce** | [Get Min Time](https://www.fastprep.io/problems/salesforce-get-minimum-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-get-minimum-time) | Sep 19, 2024 | | **Salesforce** | [Schedule Batch Difference](https://www.fastprep.io/problems/salesforce-schedule-batch-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-schedule-batch-difference) | Sep 19, 2024 | | **Akuna** | [Get Probability](https://www.fastprep.io/problems/akuna-get-probability) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-get-probability) | Sep 19, 2024 | | **Stripe** | [For All Intents And Purposes Part 1 - Initilizing the System](https://www.fastprep.io/problems/stripe-for-all-intents-and-purposes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-for-all-intents-and-purposes) | Sep 19, 2024 | | **Stripe** | [For All Intents And Purposes Part 2 - Change Is Good!](https://www.fastprep.io/problems/stripe-for-all-intents-and-purposes-part2) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-for-all-intents-and-purposes-part2) | Sep 19, 2024 | | **Stripe** | [For All Intents And Purposes Part 3 - Accepting Failure](https://www.fastprep.io/problems/stripe-for-all-intents-and-purposes-part3) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-for-all-intents-and-purposes-part3) | Sep 19, 2024 | | **Stripe** | [For All Intents And Purposes Part 3 - Timing Matters](https://www.fastprep.io/problems/stripe-for-all-intents-and-purposes-part4) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stripe-for-all-intents-and-purposes-part4) | Sep 19, 2024 | | **TikTok** | [Viral Content Balancer](https://www.fastprep.io/problems/tiktok-viral-content-balancer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-viral-content-balancer) | Sep 19, 2024 | | **TikTok** | [Distribute Credits](https://www.fastprep.io/problems/tiktok-can-distribute-credits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-can-distribute-credits) | Sep 19, 2024 | | **LinkedIn** | [First Occurence](https://www.fastprep.io/problems/linkedin-first-occurrence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/linkedin-first-occurrence) | Sep 19, 2024 | | **IBM** | [Process Logs](https://www.fastprep.io/problems/ibm-process-logs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-process-logs) | Sep 19, 2024 | | **IBM** | [Is Convertible Data](https://www.fastprep.io/problems/ibm-is-convertible-data) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-is-convertible-data) | Sep 19, 2024 | | **Rubrik** | [Key Sum Management](https://www.fastprep.io/problems/rubrik-key-sum-management) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-key-sum-management) | Sep 19, 2024 | | **Rubrik** | [Unaligned Dedupe](https://www.fastprep.io/problems/rubrik-unaligned-dedupe) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-unaligned-dedupe) | Sep 19, 2024 | | **Rubrik** | [Bitonic Partitioning](https://www.fastprep.io/problems/rubrik-bitonic-partitioning) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-bitonic-partitioning) | Sep 19, 2024 | | **Rubrik** | [Chain Merge](https://www.fastprep.io/problems/rubrik-chain-merge) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-chain-merge) | Sep 19, 2024 | | **Rubrik** | [The Oracle](https://www.fastprep.io/problems/rubrik-the-oracle) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-the-oracle) | Sep 19, 2024 | | **Rubrik** | [Redistribute Megasseds](https://www.fastprep.io/problems/rubrik-redistribute-megaseeds) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-redistribute-megaseeds) | Sep 19, 2024 | | **Rubrik** | [Anti Aging Serum](https://www.fastprep.io/problems/rubrik-anti-aging-serum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-anti-aging-serum) | Sep 19, 2024 | | **Rubrik** | [Save the Universe](https://www.fastprep.io/problems/rubrik-save-the-universe) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-save-the-universe) | Sep 19, 2024 | | **Microsoft** | [Check Path Presence](https://www.fastprep.io/problems/microsoft-check-path-presence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-check-path-presence) | Sep 19, 2024 | | **Oracle** | [Create Largest Permutation](https://www.fastprep.io/problems/oracle-create-lexicographically-largest-permutation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-create-lexicographically-largest-permutation) | Sep 19, 2024 | | **ZipRecruiter** | [Lamp and Control Points](https://www.fastprep.io/problems/ziprecruiter-lamp-and-control-points) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-lamp-and-control-points) | Sep 19, 2024 | | **ZipRecruiter** | [Coder Writing](https://www.fastprep.io/problems/ziprecruiter-coder-writing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-coder-writing) | Sep 19, 2024 | | **Cisco** | [Add Numbers](https://www.fastprep.io/problems/cisco-add-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-add-numbers) | Sep 19, 2024 | | **Cisco** | [Expand Given String](https://www.fastprep.io/problems/cisco-expand-given-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-expand-given-string) | Sep 19, 2024 | | **Cisco** | [Create New Version](https://www.fastprep.io/problems/cisco-create-new-version) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-create-new-version) | Sep 19, 2024 | | **BNP** | [Largest Good](https://www.fastprep.io/problems/bnp-largest-good) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bnp-largest-good) | Sep 19, 2024 | | **Accenture** | [Smallest Number Greater Thank K](https://www.fastprep.io/problems/accenture-smallest-number-greater-than-k) | Coding | [![Practice][p]](https://www.fastprep.io/problems/accenture-smallest-number-greater-than-k) | Sep 19, 2024 | | **FactSet** | [Last Stone Weight](https://www.fastprep.io/problems/factset-last-stone-weight) | Coding | [![Practice][p]](https://www.fastprep.io/problems/factset-last-stone-weight) | Sep 19, 2024 | | **FactSet** | [Largest Square of Ones](https://www.fastprep.io/problems/factset-largest-square-of-1s) | Coding | [![Practice][p]](https://www.fastprep.io/problems/factset-largest-square-of-1s) | Sep 19, 2024 | | **FactSet** | [Phone Album](https://www.fastprep.io/problems/factset-photo-album) | Coding | [![Practice][p]](https://www.fastprep.io/problems/factset-photo-album) | Sep 19, 2024 | | **IMC** | [Max Sub Square Matrix Sum Less Than K](https://www.fastprep.io/problems/imc-maximum-sub-square-matrix-sum-less-than-k) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-maximum-sub-square-matrix-sum-less-than-k) | Sep 19, 2024 | | **ZoloStays** | [Range Sum](https://www.fastprep.io/problems/zolostays-range-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zolostays-range-sum) | Sep 19, 2024 | | **ZoloStays** | [Trapping Rain Water](https://www.fastprep.io/problems/zolostays-trapping-rain-water) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zolostays-trapping-rain-water) | Sep 19, 2024 | | **Odoo** | [Employees Joined per Month](https://www.fastprep.io/problems/odoo-employees-joined-per-month) | SQL | [![Practice][p]](https://www.fastprep.io/problems/odoo-employees-joined-per-month) | Sep 17, 2024 | | **Odoo** | [Evaluate a Python Integer Expression](https://www.fastprep.io/problems/odoo-evaluate-python-integer-expression) | Coding | [![Practice][p]](https://www.fastprep.io/problems/odoo-evaluate-python-integer-expression) | Sep 17, 2024 | | **MathWorks** | [Has Vowels](https://www.fastprep.io/problems/mathwork-has-vowels) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-has-vowels) | Sep 17, 2024 | | **MathWorks** | [Get Min Operations](https://www.fastprep.io/problems/mathworks-get-minimum-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathworks-get-minimum-operations) | Sep 17, 2024 | | **Odoo** | [Compare Character Arrays with Backspaces](https://www.fastprep.io/problems/odoo-compare-character-arrays-with-backspaces) | Coding | [![Practice][p]](https://www.fastprep.io/problems/odoo-compare-character-arrays-with-backspaces) | Sep 17, 2024 | | **Odoo** | [Build a Room Booking Single-Page Application](https://www.fastprep.io/project-coding/odoo-room-booking-spa) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/odoo-room-booking-spa) | Sep 17, 2024 | | **Amazon** | [Get Outlier Value](https://www.fastprep.io/problems/1.amazon-get-outlier-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-outlier-value) | Sep 16, 2024 | | **Blackrock** | [Calculate Distance](https://www.fastprep.io/problems/blackrock-calculate-distance) | Coding | [![Practice][p]](https://www.fastprep.io/problems/blackrock-calculate-distance) | Sep 16, 2024 | | **Blackrock** | [Efficient Matching](https://www.fastprep.io/problems/blackrock-efficient-matching) | Coding | [![Practice][p]](https://www.fastprep.io/problems/blackrock-efficient-matching) | Sep 16, 2024 | | **Bloomberg** | [Consecutive](https://www.fastprep.io/problems/bloomberg-consecutive) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bloomberg-consecutive) | Sep 16, 2024 | | **Bloomberg** | [Count Numbers](https://www.fastprep.io/problems/bloomberg-count-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bloomberg-count-numbers) | Sep 16, 2024 | | **Bloomberg** | [Find Longest Chain](https://www.fastprep.io/problems/bloomberg-find-longest-chain) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bloomberg-find-longest-chain) | Sep 16, 2024 | | **Bloomberg** | [Shuffle All the Decks](https://www.fastprep.io/problems/bloomberg-shuffle-all-decks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bloomberg-shuffle-all-decks) | Sep 16, 2024 | | **JP Morgan** | [Get Final String](https://www.fastprep.io/problems/jpmorgan-get-final-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-final-string) | Sep 05, 2024 | | **JP Morgan** | [Min Swaps](https://www.fastprep.io/problems/jpmorgan-minimum-swaps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-minimum-swaps) | Sep 05, 2024 | | **JP Morgan** | [Get Max Deletions](https://www.fastprep.io/problems/jpmorgan-get-max-deletions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-max-deletions) | Sep 05, 2024 | | **JP Morgan** | [Maximum Amount](https://www.fastprep.io/problems/jpmorgan-maximum-amount) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-maximum-amount) | Sep 05, 2024 | | **JP Morgan** | [Count Numbers](https://www.fastprep.io/problems/jpmorgan-count-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-count-numbers) | Sep 05, 2024 | | **Google** | [Optimize Log Files](https://www.fastprep.io/problems/google-optimize-log-files) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-optimize-log-files) | Sep 05, 2024 | | **IBM** | [Maximize Resource Allocation](https://www.fastprep.io/problems/ibm-maximize-resource-allocation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-maximize-resource-allocation) | Sep 05, 2024 | | **IBM** | [Find Max Even Sum](https://www.fastprep.io/problems/ibm-find-maximum-even-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-find-maximum-even-sum) | Sep 05, 2024 | | **JP Morgan** | [Print Without Repeating](https://www.fastprep.io/problems/jpmorgan-print-number-of-elements-without-repeating-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-print-number-of-elements-without-repeating-digits) | Sep 04, 2024 | | **JP Morgan** | [Get Unique Character](https://www.fastprep.io/problems/jpmorgan-get-unique-character) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-unique-character) | Sep 04, 2024 | | **JP Morgan** | [Get Min Machines](https://www.fastprep.io/problems/jpmorgan-get-min-machines) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-min-machines) | Sep 04, 2024 | | **JP Morgan** | [Get Min Cost](https://www.fastprep.io/problems/jpmorgan-min-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-min-cost) | Sep 04, 2024 | | **Uber** | [Count Segments After House Removals](https://www.fastprep.io/problems/uber-counting-segments-after-house-removals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-counting-segments-after-house-removals) | Sep 04, 2024 | | **Cisco** | [Find Largest Sum of Continuous Sequence](https://www.fastprep.io/problems/cisco-find-largest-sum-of-continuous-sequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-largest-sum-of-continuous-sequence) | Sep 04, 2024 | | **Cisco** | [Find Elements Largest in Row Smallest in Column](https://www.fastprep.io/problems/cisco-find-elements-largest-row-smallest-column) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-elements-largest-row-smallest-column) | Sep 04, 2024 | | **Cisco** | [Find Palinedrome Sub String](https://www.fastprep.io/problems/cisco-find-sub-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-sub-string) | Sep 04, 2024 | | **Cisco** | [Find Machine Count](https://www.fastprep.io/problems/cisco-get-minimum-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-get-minimum-cost) | Sep 04, 2024 | | **Amazon** | [Distributed Packages](https://www.fastprep.io/problems/amazon-distribute-packages) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-distribute-packages) | Sep 03, 2024 | | **Amazon** | [Get Max Information Gain](https://www.fastprep.io/problems/amazon-get-max-information-gain) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-information-gain) | Sep 03, 2024 | | **Amazon** | [Find Capable Winners](https://www.fastprep.io/problems/amazon-find-capable-winners) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-capable-winners) | Sep 03, 2024 | | **Amazon** | [Find Maximum Zeros](https://www.fastprep.io/problems/1.amazon-find-maximum-zeroes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-maximum-zeroes) | Sep 03, 2024 | | **TikTok** | [Sort Social Media Feeds](https://www.fastprep.io/problems/tiktok-sort-social-media-feed) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-sort-social-media-feed) | Sep 03, 2024 | | **Microsoft** | [Maximum Number of Moves with Same Result](https://www.fastprep.io/problems/microsoft-max-num-of-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-max-num-of-moves) | Sep 03, 2024 | | **Cisco** | [Find Min Cost To Shift Machines](https://www.fastprep.io/problems/cisco-find-minimum-cost-to-shift-machines) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-minimum-cost-to-shift-machines) | Sep 03, 2024 | | **Cisco** | [Get Min Servers](https://www.fastprep.io/problems/cisco-get-min-servers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-get-min-servers) | Sep 03, 2024 | | **Deutsche Bank** | [Give Min Sum](https://www.fastprep.io/problems/deutsche-bank-give-minimum-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deutsche-bank-give-minimum-sum) | Sep 03, 2024 | | **Amazon** | [Get Min Size](https://www.fastprep.io/problems/amazon-get-min-size) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-size) | Aug 30, 2024 | | **Salesforce** | [Get Perfect Pairs Count](https://www.fastprep.io/problems/salesforce-get-perfect-pairs-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-get-perfect-pairs-count) | Aug 30, 2024 | | **Salesforce** | [Minimal Operations](https://www.fastprep.io/problems/salesforce-minimal-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-minimal-operations) | Aug 30, 2024 | | **JP Morgan** | [Get Largest Number](https://www.fastprep.io/problems/jpmorgan-get-largest-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-largest-number) | Aug 30, 2024 | | **Uber** | [Count Elements](https://www.fastprep.io/problems/uber-count-elements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-count-elements) | Aug 30, 2024 | | **Uber** | [Build Blocks and Obstacles](https://www.fastprep.io/problems/uber-build-blocks-and-obstacles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-build-blocks-and-obstacles) | Aug 30, 2024 | | **Uber** | [Matrix Transformation](https://www.fastprep.io/problems/uber-matrix-transformation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-matrix-transformation) | Aug 30, 2024 | | **Uber** | [Match Pattern](https://www.fastprep.io/problems/uber-match-subarray-to-pattern) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-match-subarray-to-pattern) | Aug 30, 2024 | | **Uber** | [Character Health](https://www.fastprep.io/problems/uber-character-health-in-a-video-game) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-character-health-in-a-video-game) | Aug 30, 2024 | | **Hudson River Trading** | [Increasing Paths 2](https://www.fastprep.io/problems/hudsonriver-increasing-paths-2) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hudsonriver-increasing-paths-2) | Aug 30, 2024 | | **Hudson River Trading** | [Increasing Paths 1](https://www.fastprep.io/problems/hudsonriver-increasing-paths-1) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hudsonriver-increasing-paths-1) | Aug 30, 2024 | | **TikTok** | [Secondary Influencer](https://www.fastprep.io/problems/tiktok-get-secondary-influencer-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-get-secondary-influencer-sum) | Aug 30, 2024 | | **TikTok** | [Maximize Efficiency Product](https://www.fastprep.io/problems/tiktok-maximize-efficiency-product) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-maximize-efficiency-product) | Aug 30, 2024 | | **Microsoft** | [Min Num Tiles](https://www.fastprep.io/problems/microsoft-min-num-tiles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-min-num-tiles) | Aug 30, 2024 | | **Microsoft** | [Shortest Possible Length](https://www.fastprep.io/problems/microsoft-shortest-possible-length) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-shortest-possible-length) | Aug 30, 2024 | | **Cisco** | [Find Mean and Mode](https://www.fastprep.io/problems/cisco-find-mean-and-mode) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-mean-and-mode) | Aug 30, 2024 | | **Cisco** | [Count Number with Sum of Digits](https://www.fastprep.io/problems/cisco-count-numbers-with-sum-of-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-count-numbers-with-sum-of-digits) | Aug 30, 2024 | | **Cisco** | [Calculate Mean and Mode](https://www.fastprep.io/problems/cisco-calculate-mean-and-mode) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-calculate-mean-and-mode) | Aug 30, 2024 | | **Cisco** | [Find Words in Grid](https://www.fastprep.io/problems/cisco-find-words-in-grid) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-words-in-grid) | Aug 30, 2024 | | **Cisco** | [Find Last Call](https://www.fastprep.io/problems/cisco-find-last-cell) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-last-cell) | Aug 30, 2024 | | **Nutanix** | [Min Cost To Collect All Points](https://www.fastprep.io/problems/nutanix-min-cost-to-connect-all-points) | Coding | [![Practice][p]](https://www.fastprep.io/problems/nutanix-min-cost-to-connect-all-points) | Aug 30, 2024 | | **Amazon** | [Min Operations To Make Zeros](https://www.fastprep.io/problems/amazon-find-minimum-number-of-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-number-of-operations) | Aug 28, 2024 | | **TikTok** | [Substrings Without Vowels](https://www.fastprep.io/problems/tiktok-number-of-substrings-without-vowels) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-number-of-substrings-without-vowels) | Aug 28, 2024 | | **TikTok** | [Build URLs](https://www.fastprep.io/problems/tiktok-build-url) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-build-url) | Aug 28, 2024 | | **IBM** | [Get Min Cores](https://www.fastprep.io/problems/ibm-get-min-cores) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-min-cores) | Aug 28, 2024 | | **IBM** | [Get Smallest String](https://www.fastprep.io/problems/ibm-get-smallest-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-smallest-string) | Aug 28, 2024 | | **Microsoft** | [Path In Grid](https://www.fastprep.io/problems/microsoft-path-in-grid) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-path-in-grid) | Aug 28, 2024 | | **Microsoft** | [Minimize Difference](https://www.fastprep.io/problems/microsoft-minimize-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimize-difference) | Aug 28, 2024 | | **Microsoft** | [Product of xor of All Good Pairs](https://www.fastprep.io/problems/microsoft-product-of-xor-of-all-good-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-product-of-xor-of-all-good-pairs) | Aug 28, 2024 | | **DE Shaw** | [Subarray Removal](https://www.fastprep.io/problems/deshaw-subarray-removal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-subarray-removal) | Aug 28, 2024 | | **Cisco** | [Find Maiximum Number Drop Points Connected](https://www.fastprep.io/problems/cisco-find-maximum-number-drop-points-connected) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-maximum-number-drop-points-connected) | Aug 28, 2024 | | **Cisco** | [Longest Palindromic Subarray](https://www.fastprep.io/problems/cisco-longest-palindromic-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-longest-palindromic-substring) | Aug 28, 2024 | | **Cisco** | [Find Largest Sum Contiguous Subarray](https://www.fastprep.io/problems/cisco-find-largest-sum-contiguous-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-largest-sum-contiguous-subarray) | Aug 28, 2024 | | **Commvault** | [Count Good Strings](https://www.fastprep.io/problems/commvault-count-good-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/commvault-count-good-strings) | Aug 28, 2024 | | **Commvault** | [Num of Good Pairs](https://www.fastprep.io/problems/commvault-number-of-good-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/commvault-number-of-good-pairs) | Aug 28, 2024 | | **Sofi** | [Get Maximum Jobs](https://www.fastprep.io/problems/sofi-get-maximum-jobs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/sofi-get-maximum-jobs) | Aug 28, 2024 | | **Zalando** | [Longest String](https://www.fastprep.io/problems/zolando-longest-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zolando-longest-string) | Aug 28, 2024 | | **Zalando** | [String Manipulation](https://www.fastprep.io/problems/zolando-string-manipulation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zolando-string-manipulation) | Aug 28, 2024 | | **Amazon** | [Choose Warehouse Location](https://www.fastprep.io/problems/amazon-choose-warehouses-location) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-choose-warehouses-location) | Aug 25, 2024 | | **Amazon** | [Sort Permutation](https://www.fastprep.io/problems/1.amazon-sort-permutation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-sort-permutation) | Aug 25, 2024 | | **Akuna** | [Movie Ratings](https://www.fastprep.io/problems/akuna-maximize-ratings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-maximize-ratings) | Aug 25, 2024 | | **Akuna** | [Get Max Cost](https://www.fastprep.io/problems/akuna-get-max-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-get-max-cost) | Aug 25, 2024 | | **Akuna** | [Get String](https://www.fastprep.io/problems/akuna-get-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-get-substring) | Aug 25, 2024 | | **TikTok** | [Min Days to Target Engagement](https://www.fastprep.io/problems/tiktok-min-days-to-target-engagement) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-min-days-to-target-engagement) | Aug 25, 2024 | | **TikTok** | [Calculate Content Strength](https://www.fastprep.io/problems/tiktok-calculate-content-strength) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-calculate-content-strength) | Aug 25, 2024 | | **Roblox** | [Make Tower](https://www.fastprep.io/problems/roblox-make-towers-strictly-increasing-or-decreasing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-make-towers-strictly-increasing-or-decreasing) | Aug 25, 2024 | | **Roblox** | [Shift Ops](https://www.fastprep.io/problems/roblox-shift-ops) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-shift-ops) | Aug 25, 2024 | | **Roblox** | [Find Longest Diagonal Segment](https://www.fastprep.io/problems/roblox-find-longest-diagonal-segment) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-find-longest-diagonal-segment) | Aug 25, 2024 | | **Amazon** | [Minimize Storage Required](https://www.fastprep.io/problems/amazon-minimum-storage-capacity-required) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimum-storage-capacity-required) | Aug 23, 2024 | | **TikTok** | [Shared Categories](https://www.fastprep.io/problems/tiktok-max-shared-categories) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-max-shared-categories) | Aug 23, 2024 | | **TikTok** | [Find Min Transitions](https://www.fastprep.io/problems/tiktok-find-minimum-transitions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-minimum-transitions) | Aug 23, 2024 | | **TikTok** | [Find Pair with Max GCD](https://www.fastprep.io/problems/tiktok-find-pair-with-maximum-gcd) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-pair-with-maximum-gcd) | Aug 23, 2024 | | **Rubrik** | [Friendship String](https://www.fastprep.io/problems/rubrik-friendship-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-friendship-string) | Aug 23, 2024 | | **Rubrik** | [Doing Smart Work](https://www.fastprep.io/problems/rubrik-doing-smart-work) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-doing-smart-work) | Aug 23, 2024 | | **Rubrik** | [Battle with Upper Moon 6](https://www.fastprep.io/problems/rubrik-battle-with-upper-moon-6) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-battle-with-upper-moon-6) | Aug 23, 2024 | | **Rubrik** | [Maximize Happiness](https://www.fastprep.io/problems/rubrik-maximize-happiness) | Coding | [![Practice][p]](https://www.fastprep.io/problems/rubrik-maximize-happiness) | Aug 23, 2024 | | **MathWorks** | [Make Arrays Equal](https://www.fastprep.io/problems/mathwork-make-arrays-equal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-make-arrays-equal) | Aug 23, 2024 | | **Trend Micro** | [Counting Game](https://www.fastprep.io/problems/trendmicro-counting-game) | Coding | [![Practice][p]](https://www.fastprep.io/problems/trendmicro-counting-game) | Aug 23, 2024 | | **Trend Micro** | [Find Sequences](https://www.fastprep.io/problems/trendmicro-find-sequences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/trendmicro-find-sequences) | Aug 23, 2024 | | **Cvent** | [Maximize Score](https://www.fastprep.io/problems/cvent-maximize-score) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cvent-maximize-score) | Aug 23, 2024 | | **Pinterest** | [Join Sources with Lagged Destination Timestamps](https://www.fastprep.io/problems/pinterest-timestamp-lag-source-join) | Coding | [![Practice][p]](https://www.fastprep.io/problems/pinterest-timestamp-lag-source-join) | Aug 21, 2024 | | **Pinterest** | [Design Merchant Product Catalog Ingestion](https://www.fastprep.io/system-design/merchant-product-catalog-ingestion) | System design | [![Practice][p]](https://www.fastprep.io/system-design/merchant-product-catalog-ingestion) | Aug 21, 2024 | | **Snowflake** | [Closest Squared Distance](https://www.fastprep.io/problems/snowflake-closest-squared-distance) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-closest-squared-distance) | Aug 20, 2024 | | **Salesforce** | [Find Num of Perfect Pairs](https://www.fastprep.io/problems/salesforce-find-number-of-perfect-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-find-number-of-perfect-pairs) | Aug 18, 2024 | | **Salesforce** | [Least Hours](https://www.fastprep.io/problems/salesforce-least-hours) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-least-hours) | Aug 18, 2024 | | **JP Morgan** | [Choose Fleets](https://www.fastprep.io/problems/jpmorgan-choose-fleets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-choose-fleets) | Aug 18, 2024 | | **JP Morgan** | [Count Signals](https://www.fastprep.io/problems/jpmorgan-count-signals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-count-signals) | Aug 18, 2024 | | **Google** | [Min Num Moves](https://www.fastprep.io/problems/google-minimum-number-of-moves-to-obtain) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimum-number-of-moves-to-obtain) | Aug 18, 2024 | | **Google** | [Biggest Number of Digits](https://www.fastprep.io/problems/google-biggest-number-of-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-biggest-number-of-digits) | Aug 18, 2024 | | **TikTok** | [Get Optimal Content Storage](https://www.fastprep.io/problems/tiktok-get-optimal-content-storage) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-get-optimal-content-storage) | Aug 18, 2024 | | **Roblox** | [Find Largest Num Of Pairs](https://www.fastprep.io/problems/roblox-find-max-number-of-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-find-max-number-of-pairs) | Aug 18, 2024 | | **Databricks** | [String Requests](https://www.fastprep.io/problems/databricks-string-requests) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-string-requests) | Aug 18, 2024 | | **Databricks** | [Diagonal Weights](https://www.fastprep.io/problems/databricks-diagonal-weights) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-diagonal-weights) | Aug 18, 2024 | | **Databricks** | [Goto Largest Bucket](https://www.fastprep.io/problems/databricks-goto-largest-bucket) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-goto-largest-bucket) | Aug 18, 2024 | | **Databricks** | [Count Triples with Diff](https://www.fastprep.io/problems/databricks-count-triples-with-diff) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-count-triples-with-diff) | Aug 18, 2024 | | **IBM** | [Get Maximum Occurances](https://www.fastprep.io/problems/ibm-get-max-occurrences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-max-occurrences) | Aug 18, 2024 | | **IBM** | [Get Min Difference](https://www.fastprep.io/problems/ibm-get-minimum-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-minimum-difference) | Aug 18, 2024 | | **IBM** | [Max Traffic Time](https://www.fastprep.io/problems/ibm-get-max-traffic-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-max-traffic-time) | Aug 18, 2024 | | **Databricks** | [Array Manipulation](https://www.fastprep.io/problems/databricks-array-manipulation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-array-manipulation) | Aug 13, 2024 | | **Capital One** | [Rotate Matrix Over Diagonals](https://www.fastprep.io/problems/capitalone-rotate-matrix-over-diagonals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/capitalone-rotate-matrix-over-diagonals) | Aug 12, 2024 | | **Databricks** | [Advanture to Count Moves](https://www.fastprep.io/problems/databricks-advanture-to-count-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-advanture-to-count-moves) | Aug 12, 2024 | | **Databricks** | [Cyclic Pairs](https://www.fastprep.io/problems/databricks-cyclic-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-cyclic-pairs) | Aug 12, 2024 | | **Databricks** | [Check Pattern Presence](https://www.fastprep.io/problems/databricks-check-pattern-presence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/databricks-check-pattern-presence) | Aug 12, 2024 | | **GE Vernova** | [Find Min Special Value](https://www.fastprep.io/problems/ge-vernova-find-minimum-special-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ge-vernova-find-minimum-special-value) | Aug 12, 2024 | | **Amazon** | [Minimize Maximum Parcels](https://www.fastprep.io/problems/1.amazon-minimize-maximum-parcels) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-minimize-maximum-parcels) | Aug 11, 2024 | | **Google** | [Happy Neighbor](https://www.fastprep.io/problems/google-happy-neighbor) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-happy-neighbor) | Aug 11, 2024 | | **Amazon** | [Get Sequence](https://www.fastprep.io/problems/amazon-get-sequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-sequence) | Aug 10, 2024 | | **Amazon** | [Get Maximum Sum](https://www.fastprep.io/problems/amazon-get-maximum-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-maximum-sum) | Aug 10, 2024 | | **TikTok** | [Exchange Cups](https://www.fastprep.io/problems/tiktok-exchange-cups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-exchange-cups) | Aug 10, 2024 | | **TikTok** | [Eating Candies](https://www.fastprep.io/problems/tiktok-eating-candies) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-eating-candies) | Aug 10, 2024 | | **TikTok** | [Find Good Subarray](https://www.fastprep.io/problems/tiktok-find-good-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-good-subarray) | Aug 10, 2024 | | **TikTok** | [Card Packets](https://www.fastprep.io/problems/tiktok-card-packets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-card-packets) | Aug 10, 2024 | | **Databricks** | [Count Pairs](https://www.fastprep.io/problems/dd-count-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/dd-count-pairs) | Aug 10, 2024 | | **Google** | [Movie Bits to Right](https://www.fastprep.io/problems/google-move-bits-to-right) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-move-bits-to-right) | Aug 08, 2024 | | **Eat Club** | [Sequence Beauty](https://www.fastprep.io/problems/eat-club-calculate-sequence-beauty) | Coding | [![Practice][p]](https://www.fastprep.io/problems/eat-club-calculate-sequence-beauty) | Aug 08, 2024 | | **Eat Club** | [Grandmaster Choice](https://www.fastprep.io/problems/eat-club-grandmasters-choice) | Coding | [![Practice][p]](https://www.fastprep.io/problems/eat-club-grandmasters-choice) | Aug 08, 2024 | | **JP Morgan** | [Count Teams](https://www.fastprep.io/problems/jpmorgan-count-teams) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-count-teams) | Aug 07, 2024 | | **Uber** | [Good Ways to Reach a Sum](https://www.fastprep.io/problems/uber-count-ways-to-reach-a-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-count-ways-to-reach-a-sum) | Aug 07, 2024 | | **Uber** | [Count Good Array](https://www.fastprep.io/problems/uber-count-the-number-of-good-subarrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-count-the-number-of-good-subarrays) | Aug 07, 2024 | | **Uber** | [Min Right Shifts to Sort An Array](https://www.fastprep.io/problems/uber-minimum-right-shifts-to-sort-the-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-right-shifts-to-sort-the-array) | Aug 07, 2024 | | **Uber** | [Min Obstacle to Remove](https://www.fastprep.io/problems/uber-minimum-obstacle-removal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-obstacle-removal) | Aug 07, 2024 | | **Akuna** | [Movie Marathon](https://www.fastprep.io/problems/akuna-longest-marathon) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-longest-marathon) | Aug 07, 2024 | | **Akuna** | [Min Operations](https://www.fastprep.io/problems/akuna-minimal-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-minimal-operations) | Aug 07, 2024 | | **Optiver** | [Customer Checkout Duration](https://www.fastprep.io/problems/optiver-customer-checkout-duration) | Coding | [![Practice][p]](https://www.fastprep.io/problems/optiver-customer-checkout-duration) | Aug 07, 2024 | | **Akuna** | [Maximize Segregation Cost](https://www.fastprep.io/problems/akuna-maximize-segregation-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-maximize-segregation-cost) | Aug 06, 2024 | | **BNY Mellon** | [Count Subsequences](https://www.fastprep.io/problems/bnymellon-count-subsequences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bnymellon-count-subsequences) | Aug 06, 2024 | | **BNY Mellon** | [Dig Sum](https://www.fastprep.io/problems/bnymellon-ways-to-choose-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/bnymellon-ways-to-choose-sum) | Aug 06, 2024 | | **Amazon** | [Process Queries On Cart](https://www.fastprep.io/problems/amazon-process-queries-on-cart) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-process-queries-on-cart) | Aug 05, 2024 | | **Amazon** | [Assign Tasks](https://www.fastprep.io/problems/amazon-assign-tasks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-assign-tasks) | Aug 05, 2024 | | **Amazon** | [Get Server ID](https://www.fastprep.io/problems/1.get-server-id) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.get-server-id) | Aug 05, 2024 | | **Amazon** | [Get Active Requests Count](https://www.fastprep.io/problems/amazon-get-active-requests-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-active-requests-count) | Aug 05, 2024 | | **Amazon** | [Get Operations](https://www.fastprep.io/problems/amazon-get-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-operations) | Aug 05, 2024 | | **Salesforce** | [Count Numbers with Unique Digits](https://www.fastprep.io/problems/salesforce-count-numbers-with-unique-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-count-numbers-with-unique-digits) | Aug 05, 2024 | | **Google** | [Find Max Heart Rate Difference](https://www.fastprep.io/problems/google-find-max-heart-rate-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-max-heart-rate-difference) | Aug 05, 2024 | | **Google** | [Find Palindromes](https://www.fastprep.io/problems/google-find-palindromes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-palindromes) | Aug 05, 2024 | | **Google** | [Binary Palindromic](https://www.fastprep.io/problems/google-minimum-operations-to-make-binary-palindromic) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimum-operations-to-make-binary-palindromic) | Aug 05, 2024 | | **Google** | [Max Num of Moves with Same Result Sum](https://www.fastprep.io/problems/google-maximum-number-of-moves-with-same-result-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-maximum-number-of-moves-with-same-result-sum) | Aug 05, 2024 | | **Google** | [Divide Tree Nodes](https://www.fastprep.io/problems/divide-tree-nodes-google) | Coding | [![Practice][p]](https://www.fastprep.io/problems/divide-tree-nodes-google) | Aug 05, 2024 | | **Google** | [Find Consistent Logs](https://www.fastprep.io/problems/google-find-consistent-logs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-consistent-logs) | Aug 05, 2024 | | **Google** | [Social Meida Friend Recommendation](https://www.fastprep.io/problems/google-social-media-friend-recommendation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-social-media-friend-recommendation) | Aug 05, 2024 | | **Uber** | [Calculate Visited Countries](https://www.fastprep.io/problems/uber-calculate-visited-countries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-calculate-visited-countries) | Aug 05, 2024 | | **Akuna** | [Maximum Amount of Profit](https://www.fastprep.io/problems/akuna-maximum-amount-of-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-maximum-amount-of-profit) | Aug 05, 2024 | | **Akuna** | [Max Meetings](https://www.fastprep.io/problems/akuna-max-meetings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-max-meetings) | Aug 05, 2024 | | **Blackrock** | [Is Happy Number](https://www.fastprep.io/problems/blackrock-is-happy-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/blackrock-is-happy-number) | Aug 05, 2024 | | **Microsoft** | [Longest Path](https://www.fastprep.io/problems/microsoft-longest-path-with-different-adjacent-characters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-longest-path-with-different-adjacent-characters) | Aug 05, 2024 | | **Microsoft** | [Min Order](https://www.fastprep.io/problems/microsoft-reorder-routes-to-make-all-paths-lead-to-the-city-zero) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-reorder-routes-to-make-all-paths-lead-to-the-city-zero) | Aug 05, 2024 | | **MathWorks** | [Good Strings](https://www.fastprep.io/problems/mathwork-good-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-good-strings) | Aug 05, 2024 | | **MathWorks** | [Cars Left](https://www.fastprep.io/problems/mathwork-cars-left) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-cars-left) | Aug 05, 2024 | | **Epam** | [Rob House](https://www.fastprep.io/problems/epam-rob-house) | Coding | [![Practice][p]](https://www.fastprep.io/problems/epam-rob-house) | Aug 05, 2024 | | **Hyper Verge** | [Get String to Remove](https://www.fastprep.io/problems/hyperverge-reach-a-given-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hyperverge-reach-a-given-number) | Aug 05, 2024 | | **Onix** | [Get String to Remove](https://www.fastprep.io/problems/onix-get-string-to-remove) | Coding | [![Practice][p]](https://www.fastprep.io/problems/onix-get-string-to-remove) | Aug 05, 2024 | | **SIG** | [Count Triples](https://www.fastprep.io/problems/counting-triples) | Coding | [![Practice][p]](https://www.fastprep.io/problems/counting-triples) | Aug 05, 2024 | | **Amazon** | [Get Minimum Boxes](https://www.fastprep.io/problems/amazon-get-minimum-boxes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-minimum-boxes) | Jul 25, 2024 | | **IBM** | [Min Insertion to Balance a Parentheses String](https://www.fastprep.io/problems/ibm-minimum-insertions-to-balance-a-parentheses-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-minimum-insertions-to-balance-a-parentheses-string) | Jul 25, 2024 | | **Samsara** | [Design a Fleet Fuel Payment Monitoring Platform](https://www.fastprep.io/system-design/fleet-fuel-payment-monitoring) | System design | [![Practice][p]](https://www.fastprep.io/system-design/fleet-fuel-payment-monitoring) | Jul 22, 2024 | | **Uber** | [Count L Shapes](https://www.fastprep.io/problems/uber-count-l-shapes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-count-l-shapes) | Jul 20, 2024 | | **Uber** | [Count Elements With At Least One Smaller And One Greater Value](https://www.fastprep.io/problems/uber-count-elements-with-at-least-one-smaller-and-one-greater-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-count-elements-with-at-least-one-smaller-and-one-greater-value) | Jul 20, 2024 | | **Uber** | [Min Operations To Make Harmonious](https://www.fastprep.io/problems/uber-minimum-operations-to-make-sequence-harmonious) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-minimum-operations-to-make-sequence-harmonious) | Jul 20, 2024 | | **Snowflake** | [Get Maximum Sum](https://www.fastprep.io/problems/snowflake-get-maximum-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-get-maximum-sum) | Jul 20, 2024 | | **Jane Street** | [Transform String](https://www.fastprep.io/problems/janestreet-transform-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/janestreet-transform-string) | Jul 20, 2024 | | **Postman** | [Design Undo Delete for Shared Collections](https://www.fastprep.io/low-level-design/undo-delete-shared-collections) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/undo-delete-shared-collections) | Jul 19, 2024 | | **Postman** | [Design Undoable Deletion for API Collections](https://www.fastprep.io/low-level-design/undoable-collection-deletion) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/undoable-collection-deletion) | Jul 19, 2024 | | **Amazon** | [Get Min Total Distance](https://www.fastprep.io/problems/1.amazon-get-min-total-distance) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-min-total-distance) | Jul 17, 2024 | | **Hudson River Trading** | [Buy and Sell Stock](https://www.fastprep.io/problems/hudsonriver-buy-sell-stock) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hudsonriver-buy-sell-stock) | Jul 17, 2024 | | **DE Shaw** | [Make Array Bitonic](https://www.fastprep.io/problems/make-array-bitonic-deshaw) | Coding | [![Practice][p]](https://www.fastprep.io/problems/make-array-bitonic-deshaw) | Jul 17, 2024 | | **Moveworks** | [Number of Balanced Strings](https://www.fastprep.io/problems/moveworks-number-of-balanced-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/moveworks-number-of-balanced-strings) | Jul 17, 2024 | | **Moveworks** | [Min Moves to Sort Array](https://www.fastprep.io/problems/moveworks-minimum-moves-to-sort-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/moveworks-minimum-moves-to-sort-array) | Jul 17, 2024 | | **Moveworks** | [Find Max Number of Strings](https://www.fastprep.io/problems/moveworks-find-maximum-number-of-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/moveworks-find-maximum-number-of-strings) | Jul 17, 2024 | | **Moveworks** | [Min Operations to Sort Array](https://www.fastprep.io/problems/moveworks-get-minimum-operations-to-sort-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/moveworks-get-minimum-operations-to-sort-array) | Jul 17, 2024 | | **Amazon** | [Compute Encoded Product Name](https://www.fastprep.io/problems/amazon-compute-encoded-product-name) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-compute-encoded-product-name) | Jul 15, 2024 | | **Amazon** | [Process Queue](https://www.fastprep.io/problems/amazon-process-queue) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-process-queue) | Jul 15, 2024 | | **Amazon** | [Get Redundant Substrings](https://www.fastprep.io/problems/amazon-get-redundant-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-redundant-substrings) | Jul 15, 2024 | | **Blackrock** | [Count Levels](https://www.fastprep.io/problems/blackrock-count-levels) | Coding | [![Practice][p]](https://www.fastprep.io/problems/blackrock-count-levels) | Jul 15, 2024 | | **Pure Storage** | [Shopping and Billing](https://www.fastprep.io/problems/purestorage-count-palindromic-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/purestorage-count-palindromic-substrings) | Jul 15, 2024 | | **Salesforce** | [Least Stressful Path](https://www.fastprep.io/problems/salesforce-least-stressful-path) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-least-stressful-path) | Jul 12, 2024 | | **Salesforce** | [Same Substring](https://www.fastprep.io/problems/salesforce-same-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-same-substring) | Jul 12, 2024 | | **Citadel** | [Get Min Operations](https://www.fastprep.io/problems/citadel-get-min-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-get-min-operations) | Jul 11, 2024 | | **JP Morgan** | [Chess Tourment](https://www.fastprep.io/problems/jpmorgan-get-potential-of-winner) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-potential-of-winner) | Jul 10, 2024 | | **Citadel** | [Count Stable Segments](https://www.fastprep.io/problems/citadel-count-stable-segments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-count-stable-segments) | Jul 10, 2024 | | **Citadel** | [Find Consistent Logs](https://www.fastprep.io/problems/citadel-find-consistent-logs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-find-consistent-logs) | Jul 10, 2024 | | **Citadel** | [Get Max Throughput](https://www.fastprep.io/problems/citadel-get-max-throughput) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-get-max-throughput) | Jul 10, 2024 | | **Citadel** | [Get Recommended Friends](https://www.fastprep.io/problems/citadel-get-recommended-friends) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-get-recommended-friends) | Jul 10, 2024 | | **Goldman Sachs** | [Alphanumeric Combinations](https://www.fastprep.io/problems/goldman-alphanumeric-combinations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-alphanumeric-combinations) | Jul 10, 2024 | | **Amazon** | [Max Consecutive ON Servers](https://www.fastprep.io/problems/amazon-get-max-consecutive-on) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-consecutive-on) | Jul 09, 2024 | | **Amazon** | [Get Total Requests](https://www.fastprep.io/problems/amazon-get-total-requests) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-total-requests) | Jun 27, 2024 | | **Uber** | [Find Length of Longest Common Prefix](https://www.fastprep.io/problems/uber-find-length-of-longest-common-prefix) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-find-length-of-longest-common-prefix) | Jun 27, 2024 | | **Snowflake** | [Minimum Segment](https://www.fastprep.io/problems/snowflake-minimum-division) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-minimum-division) | Jun 27, 2024 | | **Cisco** | [Find Critical Nodes](https://www.fastprep.io/problems/cisco-find-critical-nodes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-critical-nodes) | Jun 27, 2024 | | **Amazon** | [Maximize Negative Signs](https://www.fastprep.io/problems/maximize-negative-signs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/maximize-negative-signs) | Jun 24, 2024 | | **Adobe** | [Determine the Edit Distance in a Word Ladder](https://www.fastprep.io/problems/adobe-determine-edit-distance-in-word-ladder) | Coding | [![Practice][p]](https://www.fastprep.io/problems/adobe-determine-edit-distance-in-word-ladder) | Jun 24, 2024 | | **Flexport** | [Distinct Moves](https://www.fastprep.io/problems/flexport-distinct-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-distinct-moves) | Jun 24, 2024 | | **Flexport** | [Maximum Edges](https://www.fastprep.io/problems/flexport-get-maximum-edges) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-get-maximum-edges) | Jun 24, 2024 | | **WeWork** | [Meeting Room](https://www.fastprep.io/problems/wework-meeting-room) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wework-meeting-room) | Jun 24, 2024 | | **WeWork** | [Shopping and Billing](https://www.fastprep.io/problems/wework-shopping-and-billing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wework-shopping-and-billing) | Jun 24, 2024 | | **Salesforce** | [Count Substrings](https://www.fastprep.io/problems/salesforce-count-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-count-substrings) | Jun 20, 2024 | | **Salesforce** | [Count Min Operations to Reduce Dimensions](https://www.fastprep.io/problems/salesforce-count-minimum-operations-to-reduce-dimensions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-count-minimum-operations-to-reduce-dimensions) | Jun 20, 2024 | | **IBM** | [Min Chairs](https://www.fastprep.io/problems/ibm-min-chairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-min-chairs) | Jun 20, 2024 | | **Microsoft** | [Get Alphabetically Smallest String](https://www.fastprep.io/problems/microsoft-get-alphabetically-smallest-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-get-alphabetically-smallest-string) | Jun 20, 2024 | | **Paypal** | [Modify Array](https://www.fastprep.io/problems/paypal-modify-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypal-modify-array) | Jun 20, 2024 | | **Xperi** | [Make Numbers Equal](https://www.fastprep.io/problems/xperi-make-numbers-equal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/xperi-make-numbers-equal) | Jun 20, 2024 | | **Xperi** | [Count Integer Sequences](https://www.fastprep.io/problems/xperi-count-integer-sequences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/xperi-count-integer-sequences) | Jun 20, 2024 | | **Amazon** | [Maximum Stability](https://www.fastprep.io/problems/amazon-maximum-stability) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-stability) | Jun 15, 2024 | | **Amazon** | [Is Regex Matching](https://www.fastprep.io/problems/amazon-is-regex-matching) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-is-regex-matching) | Jun 15, 2024 | | **Uber** | [Word Pairs](https://www.fastprep.io/problems/uber-word-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-word-pairs) | Jun 15, 2024 | | **Uber** | [Bus Time](https://www.fastprep.io/problems/uber-bus-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-bus-time) | Jun 15, 2024 | | **IBM** | [Find Arrangement](https://www.fastprep.io/problems/ibm-find-arrangements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-find-arrangements) | Jun 15, 2024 | | **Microsoft** | [Skycraper](https://www.fastprep.io/problems/microsoft-skyscraper) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-skyscraper) | Jun 15, 2024 | | **Microsoft** | [Min Num Cells](https://www.fastprep.io/problems/microsoft-min-num-letters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-min-num-letters) | Jun 15, 2024 | | **Microsoft** | [Maximum Cells](https://www.fastprep.io/problems/microsoft-maximum-cells) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-cells) | Jun 15, 2024 | | **Anduril** | [Design a Radar Sensor Observation Pipeline](https://www.fastprep.io/system-design/radar-sensor-observation-pipeline) | System design | [![Practice][p]](https://www.fastprep.io/system-design/radar-sensor-observation-pipeline) | Jun 11, 2024 | | **Amazon** | [Maximize Subtree Product](https://www.fastprep.io/problems/amazon-maximize-subtree-product) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximize-subtree-product) | Jun 10, 2024 | | **Amazon** | [Bring Servers Down](https://www.fastprep.io/problems/amazon-bring-servers-down) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-bring-servers-down) | Jun 10, 2024 | | **Snowflake** | [Search Strings](https://www.fastprep.io/problems/snowflake-get-maximum-removals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-get-maximum-removals) | Jun 10, 2024 | | **Amazon** | [Optimizing Box Weights](https://www.fastprep.io/problems/amazon-minimal-heaviest-set-a) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimal-heaviest-set-a) | Jun 02, 2024 | | **Amazon** | [Find K Level Permutation](https://www.fastprep.io/problems/amazon-find-k-level-permutation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-k-level-permutation) | Jun 02, 2024 | | **Salesforce** | [Winning Square](https://www.fastprep.io/problems/salesforce-construct-winning-sequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-construct-winning-sequence) | Jun 02, 2024 | | **Google** | [Max Subarray Filled with Zeros](https://www.fastprep.io/problems/google-max-subarray-filled-with-zeros) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-max-subarray-filled-with-zeros) | Jun 02, 2024 | | **Google** | [Find Last Characters](https://www.fastprep.io/problems/google-find-last-character) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-last-character) | Jun 02, 2024 | | **Microsoft** | [Longest Spike](https://www.fastprep.io/problems/microsoft-the-longest-spike) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-the-longest-spike) | Jun 02, 2024 | | **Google** | [Find Min Possible Diameter](https://www.fastprep.io/problems/google-find-minimum-possible-diameter) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-minimum-possible-diameter) | May 31, 2024 | | **Google** | [Search Suggestions System](https://www.fastprep.io/problems/1.google-search-suggestions-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.google-search-suggestions-system) | May 25, 2024 | | **Google** | [Minimum Flips to Alternate Binary String (With K Flip Window)](https://www.fastprep.io/problems/1.google-minimum-flips-to-alternate-binary-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.google-minimum-flips-to-alternate-binary-string) | May 25, 2024 | | **Google** | [Generate Pattern Matching Strings](https://www.fastprep.io/problems/google-generate-pattern-matching-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-generate-pattern-matching-strings) | May 25, 2024 | | **Goldman Sachs** | [Find the Damaged Toy](https://www.fastprep.io/problems/goldman-find-the-damaged-toy) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-find-the-damaged-toy) | May 25, 2024 | | **Goldman Sachs** | [Encode or Decode Message](https://www.fastprep.io/problems/goldman-encode-or-decode-message) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-encode-or-decode-message) | May 25, 2024 | | **Cisco** | [Flight Path Package Drop](https://www.fastprep.io/problems/cisco-maximum-drop-points-cover) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-maximum-drop-points-cover) | May 25, 2024 | | **Postman** | [Encode and Decode a String Stream](https://www.fastprep.io/problems/postman-transform-string-stream) | Coding | [![Practice][p]](https://www.fastprep.io/problems/postman-transform-string-stream) | May 17, 2024 | | **Amazon** | [Get Experience](https://www.fastprep.io/problems/amazon-get-exp) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-exp) | May 13, 2024 | | **Uber** | [Maximize XOR for Each Query](https://www.fastprep.io/problems/uber-maximum-xor-for-each-query) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-maximum-xor-for-each-query) | May 13, 2024 | | **Microsoft** | [Find Min Num Moves](https://www.fastprep.io/problems/microsoft-find-min-num-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-find-min-num-moves) | May 13, 2024 | | **Flexport** | [Count Good Subsequence](https://www.fastprep.io/problems/flexport-count-good-subsequences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-count-good-subsequences) | May 13, 2024 | | **Flexport** | [Throw the Ball](https://www.fastprep.io/problems/flexport-throw-the-ball) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-throw-the-ball) | May 13, 2024 | | **DE Shaw** | [Get Min Cost](https://www.fastprep.io/problems/deshaw-get-minimum-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-get-minimum-cost) | May 10, 2024 | | **DE Shaw** | [Find Num of Interesting Pairs](https://www.fastprep.io/problems/deshaw-find-number-of-interesting-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-find-number-of-interesting-pairs) | May 10, 2024 | | **Meta** | [ All About Cave ](https://www.fastprep.io/problems/mt-cave) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-cave) | May 06, 2024 | | **Amazon** | [Ordered Confirguration](https://www.fastprep.io/problems/amazon-orda-layout) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-orda-layout) | May 04, 2024 | | **Microsoft** | [Assign Value](https://www.fastprep.io/problems/microsoft-assign-values) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-assign-values) | May 04, 2024 | | **Microsoft** | [Construct Max Balanced Circle](https://www.fastprep.io/problems/microsoft-construct-maximum-balanced-circle) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-construct-maximum-balanced-circle) | May 04, 2024 | | **Microsoft** | [Find Suitable Locations](https://www.fastprep.io/problems/findSuitableLocations-microsoft) | Coding | [![Practice][p]](https://www.fastprep.io/problems/findSuitableLocations-microsoft) | May 04, 2024 | | **IBM** | [Get Optimal String Length](https://www.fastprep.io/problems/ibm-get-optimal-string-length) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-optimal-string-length) | Apr 27, 2024 | | **DE Shaw** | [Maximum Size Subarray Sum](https://www.fastprep.io/problems/deshaw-maximum-size-subarray-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-maximum-size-subarray-sum) | Apr 27, 2024 | | **Nutanix** | [Minimum Operations to Convert Array](https://www.fastprep.io/problems/nutanix-minimum-operations-to-convert-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/nutanix-minimum-operations-to-convert-array) | Apr 27, 2024 | | **Canva** | [Character Reprogramming](https://www.fastprep.io/problems/canva-character-reprogramming) | Coding | [![Practice][p]](https://www.fastprep.io/problems/canva-character-reprogramming) | Apr 27, 2024 | | **Canva** | [Order Check](https://www.fastprep.io/problems/canva-count-students) | Coding | [![Practice][p]](https://www.fastprep.io/problems/canva-count-students) | Apr 27, 2024 | | **Canva** | [Counting Binary Substrings](https://www.fastprep.io/problems/canva-counting) | Coding | [![Practice][p]](https://www.fastprep.io/problems/canva-counting) | Apr 27, 2024 | | **SpaceX** | [Starlink Beam Planner](https://www.fastprep.io/problems/spacex-starlink-beam-planner) | Coding | [![Practice][p]](https://www.fastprep.io/problems/spacex-starlink-beam-planner) | Apr 25, 2024 | | **TikTok** | [Maximum Shown Segments](https://www.fastprep.io/problems/tiktok-max-shown-segments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-max-shown-segments) | Apr 23, 2024 | | **Snowflake** | [Airport Limousine](https://www.fastprep.io/problems/snowflake-maximum-passengers-collected) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-maximum-passengers-collected) | Apr 22, 2024 | | **Snowflake** | [Task Master](https://www.fastprep.io/problems/1.snowflake-tasks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.snowflake-tasks) | Apr 21, 2024 | | **DE Shaw** | [Calculate Region](https://www.fastprep.io/problems/deshaw-calculate-total-region) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-calculate-total-region) | Apr 20, 2024 | | **DE Shaw** | [Perfect Break](https://www.fastprep.io/problems/deshaw-perfect-break) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-perfect-break) | Apr 19, 2024 | | **JP Morgan** | [Find Min Cost](https://www.fastprep.io/problems/jpmorgan-find-minimum-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-find-minimum-cost) | Apr 16, 2024 | | **Microsoft** | [Min Str without Reapting Chars](https://www.fastprep.io/problems/microsoft-minimum-substrings-without-repeating-characters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-minimum-substrings-without-repeating-characters) | Apr 16, 2024 | | **Microsoft** | [Frog Game](https://www.fastprep.io/problems/microsoft-frog-game) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-frog-game) | Apr 16, 2024 | | **Wayfair** | [Smash Bricks](https://www.fastprep.io/problems/wayfair-smash-the-bricks) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wayfair-smash-the-bricks) | Apr 16, 2024 | | **Wayfair** | [Validate Magical Binary String](https://www.fastprep.io/problems/wayfair-validating-magical-binary-strings-with-regex) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wayfair-validating-magical-binary-strings-with-regex) | Apr 16, 2024 | | **Nutanix** | [No Adjacent Characters](https://www.fastprep.io/problems/nutanix-no-adjacent-characters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/nutanix-no-adjacent-characters) | Apr 16, 2024 | | **Amazon** | [Find Median Of Subarray Uniqueness](https://www.fastprep.io/problems/find-median-of-subarray-uniqueness) | Coding | [![Practice][p]](https://www.fastprep.io/problems/find-median-of-subarray-uniqueness) | Apr 15, 2024 | | **Amazon** | [Max Negation](https://www.fastprep.io/problems/amazon-maximize-the-array-sum-after-negating-at-most-k-elements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximize-the-array-sum-after-negating-at-most-k-elements) | Apr 12, 2024 | | **Amazon** | [Get Min Time](https://www.fastprep.io/problems/amazon-get-min-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-time) | Apr 12, 2024 | | **Amazon** | [Kth Smallest in Subarray](https://www.fastprep.io/problems/amazon-kth-smallest-in-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-kth-smallest-in-subarray) | Apr 12, 2024 | | **Amazon** | [Get K Rep Value](https://www.fastprep.io/problems/1.amazon-get-k-rep-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-k-rep-value) | Apr 12, 2024 | | **Amazon** | [Get Max Pairs](https://www.fastprep.io/problems/amazon-get-max-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-pairs) | Apr 12, 2024 | | **Amazon** | [Count Pairs](https://www.fastprep.io/problems/amazon-count-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-pairs) | Apr 12, 2024 | | **JP Morgan** | [Max Information](https://www.fastprep.io/problems/jpmorgan-maximum-information) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-maximum-information) | Apr 10, 2024 | | **JP Morgan** | [Num of Pairs](https://www.fastprep.io/problems/jpmorgan-find-num-of-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-find-num-of-pairs) | Apr 10, 2024 | | **TikTok** | [Max Engagement](https://www.fastprep.io/problems/tiktok-find-maximum-engagement) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-maximum-engagement) | Apr 10, 2024 | | **MathWorks** | [Max Operations](https://www.fastprep.io/problems/mathwork-maximum-number-of-operations-on-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-maximum-number-of-operations-on-string) | Apr 10, 2024 | | **MathWorks** | [Max Even Sum Subsequence](https://www.fastprep.io/problems/mathwork-maximum-even-sum-subsequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-maximum-even-sum-subsequence) | Apr 10, 2024 | | **MathWorks** | [Find Min Possible Size](https://www.fastprep.io/problems/mathwork-find-minimum-possible-size) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-find-minimum-possible-size) | Apr 10, 2024 | | **Amazon** | [Channel Max Quality](https://www.fastprep.io/problems/amazon-calculate-median-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-calculate-median-sum) | Apr 09, 2024 | | **Amazon** | [Num of Idle Robots 🐳](https://www.fastprep.io/problems/1.amazon-num-idle-drives) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-num-idle-drives) | Apr 08, 2024 | | **Google** | [Split and Sort](https://www.fastprep.io/problems/google-split-and-sort) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-split-and-sort) | Apr 08, 2024 | | **Barclays** | [Mim Steps Required](https://www.fastprep.io/problems/barclay-minimum-steps-required) | Coding | [![Practice][p]](https://www.fastprep.io/problems/barclay-minimum-steps-required) | Apr 08, 2024 | | **Confluent** | [Get Best Price](https://www.fastprep.io/problems/confluent-get-best-price) | Coding | [![Practice][p]](https://www.fastprep.io/problems/confluent-get-best-price) | Apr 08, 2024 | | **Amazon** | [Find Earliest Month](https://www.fastprep.io/problems/1.amazon-find-earliest-month) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-earliest-month) | Apr 07, 2024 | | **Amazon** | [Get Max Points from Sprints](https://www.fastprep.io/problems/1.get-max-points-from-sprints) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.get-max-points-from-sprints) | Apr 07, 2024 | | **Amazon** | [Max Lucky Numbers](https://www.fastprep.io/problems/max-lucky-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/max-lucky-numbers) | Apr 07, 2024 | | **Amazon** | [Max Total Area](https://www.fastprep.io/problems/1.amazon-get-max-total-area) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-max-total-area) | Apr 07, 2024 | | **Infosys** | [Find Num of Good Subsequences](https://www.fastprep.io/problems/infosys-find-number-of-good-subsequences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-find-number-of-good-subsequences) | Apr 07, 2024 | | **Microsoft** | [Max Sum After Merges](https://www.fastprep.io/problems/microsoft-maximum-sum-after-merges) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximum-sum-after-merges) | Apr 07, 2024 | | **Amazon** | [Minimum Operations to Make Array Elements Zero ](https://www.fastprep.io/problems/1.amazon-minimum-operations-to-make-array-elements-zero) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-minimum-operations-to-make-array-elements-zero) | Apr 06, 2024 | | **Amazon** | [Find Kth Minimum Vulnerability ](https://www.fastprep.io/problems/amazon-find-kth-minimum-vulnerability) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-kth-minimum-vulnerability) | Apr 05, 2024 | | **MathWorks** | [Max Beauty](https://www.fastprep.io/problems/mathwork-maximize-beauty) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-maximize-beauty) | Apr 05, 2024 | | **MathWorks** | [Investable Periods](https://www.fastprep.io/problems/mathwork-count-investable-periods) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-count-investable-periods) | Apr 05, 2024 | | **Alarm.com** | [Arrange Coins](https://www.fastprep.io/problems/alarm-arrange-coins) | Coding | [![Practice][p]](https://www.fastprep.io/problems/alarm-arrange-coins) | Apr 05, 2024 | | **Alarm.com** | [Days Since Last Login](https://www.fastprep.io/problems/alarm-days-since-last-login) | Coding | [![Practice][p]](https://www.fastprep.io/problems/alarm-days-since-last-login) | Apr 05, 2024 | | **Amazon** | [Max Aggregate Temp Change](https://www.fastprep.io/problems/amazon-get-max-aggregate-temperature-change) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-aggregate-temperature-change) | Mar 31, 2024 | | **Google** | [Min Flips](https://www.fastprep.io/problems/google-min-flips-make-grid-palindrome) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-min-flips-make-grid-palindrome) | Mar 31, 2024 | | **Google** | [Mnimize Total Time](https://www.fastprep.io/problems/google-minimize-total-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimize-total-time) | Mar 31, 2024 | | **Infosys** | [Unique Elements After Modification](https://www.fastprep.io/problems/infosys-number-of-unique-elements-after-modifications) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-number-of-unique-elements-after-modifications) | Mar 31, 2024 | | **IBM** | [Latest K Requests](https://www.fastprep.io/problems/ibm-get-latest-k-requests) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-latest-k-requests) | Mar 31, 2024 | | **Microsoft** | [Handmade Items](https://www.fastprep.io/problems/microsoft-handmade-item) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-handmade-item) | Mar 31, 2024 | | **Microsoft** | [Cover Hotels](https://www.fastprep.io/problems/microsoft-cover-holes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-cover-holes) | Mar 31, 2024 | | **Google** | [Nearest Value Replacement](https://www.fastprep.io/problems/google-nearest-value-replacement) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-nearest-value-replacement) | Mar 29, 2024 | | **Amazon** | [Merge Interval](https://www.fastprep.io/problems/amazon-merge-intervals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-merge-intervals) | Mar 28, 2024 | | **Google** | [Min Operations](https://www.fastprep.io/problems/google-minimum-number-of-split-operations-to-make-array-sorted) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimum-number-of-split-operations-to-make-array-sorted) | Mar 28, 2024 | | **SpaceX** | [Monster Registry](https://www.fastprep.io/problems/spacex-monster-registry) | Coding | [![Practice][p]](https://www.fastprep.io/problems/spacex-monster-registry) | Mar 28, 2024 | | **Amazon** | [Maximize Negative PNL Months](https://www.fastprep.io/problems/1.amazon-maximize-negative-pnl_months) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-maximize-negative-pnl_months) | Mar 27, 2024 | | **Amazon** | [Reduce Gifts](https://www.fastprep.io/problems/1.amazon-reduce-gifts) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-reduce-gifts) | Mar 27, 2024 | | **Google** | [Can Fit Word](https://www.fastprep.io/problems/google-can-fit-the-word) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-can-fit-the-word) | Mar 27, 2024 | | **TikTok** | [Server Investment](https://www.fastprep.io/problems/tiktok-maximize-upgraded-servers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-maximize-upgraded-servers) | Mar 27, 2024 | | **TikTok** | [Auth System](https://www.fastprep.io/problems/tiktok-get-unexpired-tokens) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-get-unexpired-tokens) | Mar 27, 2024 | | **Salesforce** | [Plan Cut](https://www.fastprep.io/problems/salesforce-plan-cuts) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-plan-cuts) | Mar 26, 2024 | | **Google** | [Is Balanced String](https://www.fastprep.io/problems/google-is-balanced-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-is-balanced-string) | Mar 26, 2024 | | **Cisco** | [Check Alphabetical Order](https://www.fastprep.io/problems/cisco-check-alphabetical-order) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-check-alphabetical-order) | Mar 26, 2024 | | **Cisco** | [Find Number](https://www.fastprep.io/problems/cisco-find-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-number) | Mar 26, 2024 | | **Cisco** | [Longest Palindrome](https://www.fastprep.io/problems/cisco-find-longest-palindromic-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-find-longest-palindromic-substring) | Mar 26, 2024 | | **Paypal** | [Min Operations](https://www.fastprep.io/problems/paypal-count-minimum-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypal-count-minimum-operations) | Mar 26, 2024 | | **Paypal** | [User Logins](https://www.fastprep.io/problems/paypal-count-user-logins) | Coding | [![Practice][p]](https://www.fastprep.io/problems/paypal-count-user-logins) | Mar 26, 2024 | | **Uber** | [Output All Possible Strings](https://www.fastprep.io/problems/uber-output-all-possible-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-output-all-possible-strings) | Mar 25, 2024 | | **Uber** | [Generate Arrays](https://www.fastprep.io/problems/uber-generate-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-generate-array) | Mar 25, 2024 | | **Uber** | [Top 2 Teams](https://www.fastprep.io/problems/uber-find-top-two-teams) | Coding | [![Practice][p]](https://www.fastprep.io/problems/uber-find-top-two-teams) | Mar 25, 2024 | | **TikTok** | [Maximize Consecutive Dance Moves](https://www.fastprep.io/problems/tiktok-maximize-consecutive-dance-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-maximize-consecutive-dance-moves) | Mar 25, 2024 | | **Salesforce** | [Find Longest Subsequence Common To X As Substring In Y](https://www.fastprep.io/problems/salesforce-find-longest-subsequence-common-to-x-as-substring-in-y) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-find-longest-subsequence-common-to-x-as-substring-in-y) | Mar 23, 2024 | | **Salesforce** | [Find Word sNot In Subsequence](https://www.fastprep.io/problems/salesforce-find-words-in-string-not-in-subsequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-find-words-in-string-not-in-subsequence) | Mar 23, 2024 | | **Salesforce** | [Tool Changer](https://www.fastprep.io/problems/salesforce-split-array-largest-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/salesforce-split-array-largest-sum) | Mar 22, 2024 | | **Google** | [Find Max Length of Subsequence](https://www.fastprep.io/problems/google-find-max-length-of-subsequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-max-length-of-subsequence) | Mar 22, 2024 | | **Trade Desk** | [Narrative Words](https://www.fastprep.io/problems/tdesk-narrative-words) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tdesk-narrative-words) | Mar 21, 2024 | | **Trade Desk** | [Last to Be Checked](https://www.fastprep.io/problems/tdesk-last-to-be-checked) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tdesk-last-to-be-checked) | Mar 21, 2024 | | **Trade Desk** | [Buddies Greater Than Target](https://www.fastprep.io/problems/tdesk-buddies-greater-than-threshold) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tdesk-buddies-greater-than-threshold) | Mar 21, 2024 | | **Trade Desk** | [Earn The Most](https://www.fastprep.io/problems/tdesk-about-profit) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tdesk-about-profit) | Mar 21, 2024 | | **Trade Desk** | [Light Sources](https://www.fastprep.io/problems/tdesk-about-lamps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tdesk-about-lamps) | Mar 21, 2024 | | **Trade Desk** | [Flights](https://www.fastprep.io/problems/tdesk-flights) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tdesk-flights) | Mar 21, 2024 | | **Trade Desk** | [Friend List](https://www.fastprep.io/problems/tdesk-friend-list) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tdesk-friend-list) | Mar 21, 2024 | | **DoorDash** | [Find Different Value](https://www.fastprep.io/problems/doordash-find-difference-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/doordash-find-difference-value) | Mar 20, 2024 | | **IBM** | [Elementary School](https://www.fastprep.io/problems/ibm-elementary-school) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-elementary-school) | Mar 20, 2024 | | **Goldman Sachs** | [Find Niceness](https://www.fastprep.io/problems/goldman-find-niceness) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-find-niceness) | Mar 20, 2024 | | **IXL Learning** | [Card Packets](https://www.fastprep.io/problems/ixl-card-packets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ixl-card-packets) | Mar 20, 2024 | | **IXL Learning** | [Count Max](https://www.fastprep.io/problems/ixl-count-max) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ixl-count-max) | Mar 20, 2024 | | **IXL Learning** | [Get Min Difference](https://www.fastprep.io/problems/ixl-get-minimum-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ixl-get-minimum-difference) | Mar 20, 2024 | | **IXL Learning** | [Prison](https://www.fastprep.io/problems/ixl-prison) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ixl-prison) | Mar 20, 2024 | | **Amazon** | [Count Faults (Faulty Binding 101 😁)](https://www.fastprep.io/problems/amazon-count-faults) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-faults) | Mar 19, 2024 | | **Amazon** | [Find Max Num](https://www.fastprep.io/problems/amazon-find-maximum-num) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-maximum-num) | Mar 19, 2024 | | **Wolverine Trading** | [Count Operations](https://www.fastprep.io/problems/wolverine-trading-count-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wolverine-trading-count-operations) | Mar 19, 2024 | | **Wolverine Trading** | [Encode](https://www.fastprep.io/problems/wolverine-trading-decode) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wolverine-trading-decode) | Mar 19, 2024 | | **Wolverine Trading** | [Max Shared](https://www.fastprep.io/problems/wolverine-trading-max-shared) | Coding | [![Practice][p]](https://www.fastprep.io/problems/wolverine-trading-max-shared) | Mar 19, 2024 | | **Amazon** | [Minimize Sum of Absolute Differences](https://www.fastprep.io/problems/amazon-minimize-sum-of-absolute-differences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimize-sum-of-absolute-differences) | Mar 18, 2024 | | **DoorDash** | [Adjust Prices](https://www.fastprep.io/problems/doordash-adjust-prices) | Coding | [![Practice][p]](https://www.fastprep.io/problems/doordash-adjust-prices) | Mar 18, 2024 | | **Two Sigma** | [Num to Be Divided by N](https://www.fastprep.io/problems/ts-nums-that-can-be-divided-by-n) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ts-nums-that-can-be-divided-by-n) | Mar 18, 2024 | | **Two Sigma** | [Replacing Val](https://www.fastprep.io/problems/ts-replacing-num) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ts-replacing-num) | Mar 18, 2024 | | **Microsoft** | [Prepare Notification](https://www.fastprep.io/problems/microsoft-prepare-notification) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-prepare-notification) | Mar 18, 2024 | | **Microsoft** | [Side Largest Square](https://www.fastprep.io/problems/microsoft-side-largest-square) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-side-largest-square) | Mar 18, 2024 | | **Microsoft** | [Str with Longgest Len](https://www.fastprep.io/problems/microsoft-str-with-longest-len) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-str-with-longest-len) | Mar 18, 2024 | | **Geneva Trading** | [Min Num of Permutation Operations](https://www.fastprep.io/problems/geneva-trading-minimum-number-of-permutation-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/geneva-trading-minimum-number-of-permutation-operations) | Mar 18, 2024 | | **ServiceNow** | [Max Sum of Balanced Sequence](https://www.fastprep.io/problems/service-now-maximum-sum-of-balanced-subsequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/service-now-maximum-sum-of-balanced-subsequence) | Mar 18, 2024 | | **ServiceNow** | [Find Max Min Val Using K Elements](https://www.fastprep.io/problems/service-now-find-max-minimum-value-using-k-elements) | Coding | [![Practice][p]](https://www.fastprep.io/problems/service-now-find-max-minimum-value-using-k-elements) | Mar 18, 2024 | | **General Motors** | [Prepare Notification](https://www.fastprep.io/problems/general-motors-prepare-notification) | Coding | [![Practice][p]](https://www.fastprep.io/problems/general-motors-prepare-notification) | Mar 17, 2024 | | **General Motors** | [Smallest But Greater](https://www.fastprep.io/problems/gms-find-the-tinest-greater-than-a-specifc-num) | Coding | [![Practice][p]](https://www.fastprep.io/problems/gms-find-the-tinest-greater-than-a-specifc-num) | Mar 17, 2024 | | **Microsoft** | [Cleaning Bot (Microsoft India)](https://www.fastprep.io/problems/microsoft-cleaning-bot) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-cleaning-bot) | Mar 16, 2024 | | **Morgan Stanley** | [Get Subsequence Count](https://www.fastprep.io/problems/stanley-get-subsequence-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/stanley-get-subsequence-count) | Mar 16, 2024 | | **Amazon** | [Find Overlapping Times](https://www.fastprep.io/problems/1.amazon-find-overlapping-times) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-overlapping-times) | Mar 15, 2024 | | **Amazon** | [Match Strings](https://www.fastprep.io/problems/amazon-match-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-match-strings) | Mar 14, 2024 | | **DoorDash** | [Sizes of Friend Groups](https://www.fastprep.io/problems/doordash-get-sizes-of-friends-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/doordash-get-sizes-of-friends-groups) | Mar 14, 2024 | | **TikTok** | [Minimum Buckets](https://www.fastprep.io/problems/tiktok-minimum-buckets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-minimum-buckets) | Mar 13, 2024 | | **TikTok** | [URL Hashing](https://www.fastprep.io/problems/tiktok-url-hashing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-url-hashing) | Mar 13, 2024 | | **TikTok** | [Three Knights](https://www.fastprep.io/problems/tiktok-find-the-number-of-possible-placements-for-the-three-knights) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-the-number-of-possible-placements-for-the-three-knights) | Mar 13, 2024 | | **IBM** | [Arr Subsets](https://www.fastprep.io/problems/ibm-subset-a) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-subset-a) | Mar 13, 2024 | | **IBM** | [Table of Contents](https://www.fastprep.io/problems/ibm-table-of-contents) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-table-of-contents) | Mar 13, 2024 | | **Amazon** | [Num of Possible Unique Strings](https://www.fastprep.io/problems/amazon-find-number-of-possible-unique-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-number-of-possible-unique-strings) | Mar 12, 2024 | | **Amazon** | [Find Encrypted Password](https://www.fastprep.io/problems/amazon-find-encrypted-password) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-encrypted-password) | Mar 12, 2024 | | **Amazon** | [Maximum Number of Balanced Shipments](https://www.fastprep.io/problems/1.amazon-maximum-number-of-shipments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-maximum-number-of-shipments) | Mar 09, 2024 | | **Amazon** | [Lexicographically Smallest Palindrome Possible](https://www.fastprep.io/problems/amazon-lexicographically-smallest-palindrome-possible) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-lexicographically-smallest-palindrome-possible) | Mar 09, 2024 | | **Amazon** | [Find Min Pages Per Day](https://www.fastprep.io/problems/1.find-minimum-pages-per-day) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.find-minimum-pages-per-day) | Mar 09, 2024 | | **IBM** | [Get Potential of Winners](https://www.fastprep.io/problems/ibm-get-potential-of-winner) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-potential-of-winner) | Mar 09, 2024 | | **DE Shaw** | [Cop](https://www.fastprep.io/problems/deshaw-min-acquire-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-min-acquire-cost) | Mar 09, 2024 | | **Atlassian** | [Flower Bouquets](https://www.fastprep.io/problems/atlanssian-flower-bouquets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/atlanssian-flower-bouquets) | Mar 09, 2024 | | **Atlassian** | [Better Compression](https://www.fastprep.io/problems/atlanssian-better-compression) | Coding | [![Practice][p]](https://www.fastprep.io/problems/atlanssian-better-compression) | Mar 09, 2024 | | **Atlassian** | [Romanizer](https://www.fastprep.io/problems/atlanssian-romanizer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/atlanssian-romanizer) | Mar 09, 2024 | | **Braze** | [Find Lowest Price](https://www.fastprep.io/problems/braze-find-lowest-price) | Coding | [![Practice][p]](https://www.fastprep.io/problems/braze-find-lowest-price) | Mar 09, 2024 | | **Zscaler** | [Count Sentences](https://www.fastprep.io/problems/zscaler-count-sentences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/zscaler-count-sentences) | Mar 09, 2024 | | **Google** | [Largest Lexicographical Substring](https://www.fastprep.io/problems/google-largest-lexicographical-substring) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-largest-lexicographical-substring) | Mar 05, 2024 | | **Google** | [Maximize Power Values Sum](https://www.fastprep.io/problems/google-maximize-power-values-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-maximize-power-values-sum) | Mar 05, 2024 | | **Amazon** | [Ways to Group Parcels](https://www.fastprep.io/problems/amazon-find-number-of-ways-to-group-parcels) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-number-of-ways-to-group-parcels) | Mar 04, 2024 | | **Amazon** | [Get Distinct Pairs](https://www.fastprep.io/problems/amazon-get-distinct-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-distinct-pairs) | Mar 04, 2024 | | **IBM** | [Find Max Distinct Items](https://www.fastprep.io/problems/ibm-find-max-distinct-items) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-find-max-distinct-items) | Mar 04, 2024 | | **Amazon** | [Maxmimum Times Word Removed](https://www.fastprep.io/problems/amazon-maximum-times-word-removed) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-times-word-removed) | Mar 03, 2024 | | **Amazon** | [Reverse Binary String](https://www.fastprep.io/problems/amazon-reverse-binary-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-reverse-binary-string) | Mar 02, 2024 | | **Amazon** | [Increase Solar Powered Light Bulbs](https://www.fastprep.io/problems/1.amazon-maximize-solar-powered-bulbs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-maximize-solar-powered-bulbs) | Mar 02, 2024 | | **Amazon** | [Return Records](https://www.fastprep.io/problems/amazon-return-records) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-return-records) | Mar 02, 2024 | | **Snowflake** | [Max Freq Substr](https://www.fastprep.io/problems/snowflake-max-freq-substr) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-max-freq-substr) | Mar 02, 2024 | | **DE Shaw** | [Min Operations to Make Array Equal](https://www.fastprep.io/problems/deshaw-minimum-operations-to-make-array-equal) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-minimum-operations-to-make-array-equal) | Mar 02, 2024 | | **IMC** | [Find Best Path](https://www.fastprep.io/problems/imc-find-best-path) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-find-best-path) | Mar 02, 2024 | | **IMC** | [Asteroid Game](https://www.fastprep.io/problems/imc-asteroid-game) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-asteroid-game) | Mar 02, 2024 | | **Barclays** | [Find Maximum Possible GCD](https://www.fastprep.io/problems/barclay-find-maximum-possible-gcd) | Coding | [![Practice][p]](https://www.fastprep.io/problems/barclay-find-maximum-possible-gcd) | Mar 02, 2024 | | **Weride** | [Checking Your Route](https://www.fastprep.io/problems/weride-checking-your-route) | Coding | [![Practice][p]](https://www.fastprep.io/problems/weride-checking-your-route) | Mar 02, 2024 | | **Amazon** | [Count Max Greyness](https://www.fastprep.io/problems/1.amazon-get-max-grayness) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-max-grayness) | Mar 01, 2024 | | **Amazon** | [Find Min Keypad Click Count (also for CN)](https://www.fastprep.io/problems/2.amazon-find-minimum-keypad-click-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/2.amazon-find-minimum-keypad-click-count) | Feb 29, 2024 | | **Infosys** | [Obtain Max Score Using Min Swaps](https://www.fastprep.io/problems/infosys-obtain-maximum-score-using-minimum-swaps) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-obtain-maximum-score-using-minimum-swaps) | Feb 29, 2024 | | **Intuit** | [Smart Gardener (Intuit India)](https://www.fastprep.io/problems/intuit-optimize-watering-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-optimize-watering-cost) | Feb 29, 2024 | | **Microsoft** | [Find Array Uniqueness Median](https://www.fastprep.io/problems/microsoft-find-array-uniqueness-median) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-find-array-uniqueness-median) | Feb 29, 2024 | | **Microsoft** | [Count Similar Substrings](https://www.fastprep.io/problems/microsoft-count-similar-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-count-similar-substrings) | Feb 29, 2024 | | **Observer.AI** | [Choose Best Flask](https://www.fastprep.io/problems/observerai-choose-the-best-flask) | Coding | [![Practice][p]](https://www.fastprep.io/problems/observerai-choose-the-best-flask) | Feb 29, 2024 | | **Amazon** | [Find Min Operations](https://www.fastprep.io/problems/1.amazon-find-minimum-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-find-minimum-operations) | Feb 28, 2024 | | **Walmart** | [Longest Good Sequence](https://www.fastprep.io/problems/walmart-find-length-of-longest-good-subsequence) | Coding | [![Practice][p]](https://www.fastprep.io/problems/walmart-find-length-of-longest-good-subsequence) | Feb 28, 2024 | | **Meta** | [ Combine Vectors(MLE)](https://www.fastprep.io/problems/mt-combine-two-vectors-of-intervals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-combine-two-vectors-of-intervals) | Feb 28, 2024 | | **Hudson River Trading** | [Harvest Crops](https://www.fastprep.io/problems/hudsonriver-harvest-crops) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hudsonriver-harvest-crops) | Feb 28, 2024 | | **TikTok** | [Find min Inversions](https://www.fastprep.io/problems/tiktok-find-min-inversions) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-min-inversions) | Feb 28, 2024 | | **TikTok** | [Max Len](https://www.fastprep.io/problems/tiktok-max-length) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-max-length) | Feb 28, 2024 | | **TikTok** | [Find Min Sum](https://www.fastprep.io/problems/tiktok-find-minimum-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-find-minimum-sum) | Feb 28, 2024 | | **Citadel** | [Min Equal Sum](https://www.fastprep.io/problems/citadel-find-minimum-equal-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-find-minimum-equal-sum) | Feb 28, 2024 | | **IBM** | [Total Execution Time](https://www.fastprep.io/problems/ibm-get-total-execution-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-total-execution-time) | Feb 28, 2024 | | **Goldman Sachs** | [Min Start Value](https://www.fastprep.io/problems/goldman-min-start) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-min-start) | Feb 28, 2024 | | **Flexport** | [Get Expression Sums](https://www.fastprep.io/problems/flexport-get-expression-sums) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-get-expression-sums) | Feb 28, 2024 | | **Flexport** | [Max Energy](https://www.fastprep.io/problems/flexport-max-energy) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-max-energy) | Feb 28, 2024 | | **Flexport** | [Get Min Time](https://www.fastprep.io/problems/flexport-get-minimum-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-get-minimum-time) | Feb 28, 2024 | | **Flexport** | [Get Node to Remove](https://www.fastprep.io/problems/flexport-get-node-to-remove) | Coding | [![Practice][p]](https://www.fastprep.io/problems/flexport-get-node-to-remove) | Feb 28, 2024 | | **Walmart** | [Min Possible Value](https://www.fastprep.io/problems/walmart-minimum-possible-value-function) | Coding | [![Practice][p]](https://www.fastprep.io/problems/walmart-minimum-possible-value-function) | Feb 24, 2024 | | **Infosys** | [Extract Cards](https://www.fastprep.io/problems/infosys-extract-cards) | Coding | [![Practice][p]](https://www.fastprep.io/problems/infosys-extract-cards) | Feb 24, 2024 | | **Snowflake** | [Meeting Time](https://www.fastprep.io/problems/snowflake-get-earliest-meet-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-get-earliest-meet-time) | Feb 24, 2024 | | **Snowflake** | [Max Beautiful Substrings](https://www.fastprep.io/problems/snowflake-get-max-beautiful-substrings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-get-max-beautiful-substrings) | Feb 24, 2024 | | **Intuit** | [Longest Cipher (Intuit India)](https://www.fastprep.io/problems/intuit-longest-cipher) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-longest-cipher) | Feb 24, 2024 | | **Intuit** | [Virus Spread (Intuit India)](https://www.fastprep.io/problems/intuit-virus-spread) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-virus-spread) | Feb 24, 2024 | | **Intuit** | [Spreading Fire (Intuit India)](https://www.fastprep.io/problems/intuit-spreading-fire) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-spreading-fire) | Feb 24, 2024 | | **Intuit** | [Jumping Kaday (Intuit India)](https://www.fastprep.io/problems/intuit-jumping-kady) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-jumping-kady) | Feb 24, 2024 | | **Intuit** | [Max Reward (Intuit India)](https://www.fastprep.io/problems/intuit-maximum-reward) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-maximum-reward) | Feb 24, 2024 | | **DE Shaw** | [Max Beauty](https://www.fastprep.io/problems/deshaw-find-maximum-beauty) | Coding | [![Practice][p]](https://www.fastprep.io/problems/deshaw-find-maximum-beauty) | Feb 24, 2024 | | **Weride** | [Long Break](https://www.fastprep.io/problems/weride-long-break) | Coding | [![Practice][p]](https://www.fastprep.io/problems/weride-long-break) | Feb 24, 2024 | | **Weride** | [Meetup Schedule](https://www.fastprep.io/problems/weride-meetup-schedule) | Coding | [![Practice][p]](https://www.fastprep.io/problems/weride-meetup-schedule) | Feb 24, 2024 | | **Samsung** | [Find Hidden Benchmark Value](https://www.fastprep.io/problems/samsung-find-hidden-benchmark-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/samsung-find-hidden-benchmark-value) | Feb 24, 2024 | | **Intuit** | [Rearranging String](https://www.fastprep.io/problems/intuit-rearrange-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-rearrange-string) | Feb 22, 2024 | | **Intuit** | [Letter Candles](https://www.fastprep.io/problems/intuit-letter-candles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-letter-candles) | Feb 22, 2024 | | **Intuit** | [Get Min Difference](https://www.fastprep.io/problems/intuit-get-minimum-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/intuit-get-minimum-difference) | Feb 22, 2024 | | **Microsoft** | [Maximize Difference](https://www.fastprep.io/problems/microsoft-maximizing-difference-in-array-elements-with-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/microsoft-maximizing-difference-in-array-elements-with-moves) | Feb 22, 2024 | | **JP Morgan** | [Min Operations](https://www.fastprep.io/problems/jpmorgan-get-minimum-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-get-minimum-operations) | Feb 21, 2024 | | **JP Morgan** | [How Many Flips?](https://www.fastprep.io/problems/jpmorgan-minimum-flips) | Coding | [![Practice][p]](https://www.fastprep.io/problems/jpmorgan-minimum-flips) | Feb 21, 2024 | | **Roblox** | [Largest Value of Usage in Minutes](https://www.fastprep.io/problems/roblox-largest-value-of-usage-in-minutes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/roblox-largest-value-of-usage-in-minutes) | Feb 21, 2024 | | **Oracle** | [Min Diff](https://www.fastprep.io/problems/oracle-min-diff) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-min-diff) | Feb 21, 2024 | | **Oracle** | [Balancing Parentheses](https://www.fastprep.io/problems/oracle-balance-parentheses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-balance-parentheses) | Feb 21, 2024 | | **Oracle** | [Last Letters](https://www.fastprep.io/problems/oracle-last-letters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-last-letters) | Feb 21, 2024 | | **Oracle** | [Reduction Cost](https://www.fastprep.io/problems/oracle-reduction-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-reduction-cost) | Feb 21, 2024 | | **Oracle** | [Merge Arrays](https://www.fastprep.io/problems/oracle-merge-arrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-merge-arrays) | Feb 21, 2024 | | **Oracle** | [Is Power](https://www.fastprep.io/problems/oracle-is-power) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-is-power) | Feb 21, 2024 | | **MathWorks** | [Load Balancing](https://www.fastprep.io/problems/mathwork-load-balancing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-load-balancing) | Feb 21, 2024 | | **ZipRecruiter** | [Count Triple](https://www.fastprep.io/problems/ziprecruiter-count-triple) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-count-triple) | Feb 21, 2024 | | **ZipRecruiter** | [Cycle Shift](https://www.fastprep.io/problems/ziprecruiter-cycle-shift) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-cycle-shift) | Feb 21, 2024 | | **Pure Storage** | [Find Doubles](https://www.fastprep.io/problems/purestorage-find-doubles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/purestorage-find-doubles) | Feb 21, 2024 | | **Palantir** | [Get Phone Numbers](https://www.fastprep.io/problems/palantir-get-phone-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/palantir-get-phone-numbers) | Feb 21, 2024 | | **Palantir** | [Get Largest Number](https://www.fastprep.io/problems/palantir-get-largest-number) | Coding | [![Practice][p]](https://www.fastprep.io/problems/palantir-get-largest-number) | Feb 21, 2024 | | **Amazon** | [Get Max Racers](https://www.fastprep.io/problems/amazon-get-max-racers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-max-racers) | Feb 20, 2024 | | **IBM** | [Get Min Time](https://www.fastprep.io/problems/ibm-get-min-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-min-time) | Feb 20, 2024 | | **Oracle** | [Add Numbers](https://www.fastprep.io/problems/oracle-add-numbers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-add-numbers) | Feb 20, 2024 | | **Walleye Capital** | [Get Min Time](https://www.fastprep.io/problems/walleye-get-min-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/walleye-get-min-time) | Feb 20, 2024 | | **Amazon** | [Get Min Num Moves](https://www.fastprep.io/problems/amazon-get-min-num-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-get-min-num-moves) | Feb 19, 2024 | | **Amazon** | [Count Distinct Passwords](https://www.fastprep.io/problems/amazon-count-distinct-passwords) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-count-distinct-passwords) | Feb 19, 2024 | | **Citadel** | [Max the Lottery ID](https://www.fastprep.io/problems/citadel-maximize-the-lottery-id) | Coding | [![Practice][p]](https://www.fastprep.io/problems/citadel-maximize-the-lottery-id) | Feb 19, 2024 | | **Meta** | [Search Mysterious Grid](https://www.fastprep.io/problems/mt-search-myterious-grid) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-search-myterious-grid) | Feb 18, 2024 | | **Meta** | [Enumerating Narrative Sections](https://www.fastprep.io/problems/mt-enumerating-narrative-sections) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-enumerating-narrative-sections) | Feb 18, 2024 | | **Snowflake** | [Efficient Deployments](https://www.fastprep.io/problems/snowflake-efficient-deployments) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-efficient-deployments) | Feb 18, 2024 | | **Amazon** | [Fortune Telling](https://www.fastprep.io/problems/amazon-minimize-the-range) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-minimize-the-range) | Feb 17, 2024 | | **Amazon** | [Max User Traffic](https://www.fastprep.io/problems/amazon-maximum-user-traffic) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-maximum-user-traffic) | Feb 17, 2024 | | **Amazon** | [Find Min Trips](https://www.fastprep.io/problems/amazon-find-min-trips) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-min-trips) | Feb 17, 2024 | | **Meta** | [Closest Landmark](https://www.fastprep.io/problems/mt-closest-land-mark) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-closest-land-mark) | Feb 17, 2024 | | **Google** | [Min Amplitude](https://www.fastprep.io/problems/google-min-amplitude) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-min-amplitude) | Feb 16, 2024 | | **Google** | [Ways to Split a String](https://www.fastprep.io/problems/google-number-of-ways-to-split-a-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-number-of-ways-to-split-a-string) | Feb 16, 2024 | | **Google** | [Maximum Time](https://www.fastprep.io/problems/google-maximum-time) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-maximum-time) | Feb 16, 2024 | | **Google** | [Min Ab Difference of Server Loads](https://www.fastprep.io/problems/google-minimize-absolute-difference-of-server-loads) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimize-absolute-difference-of-server-loads) | Feb 16, 2024 | | **Google** | [Most Booked Hotel Room](https://www.fastprep.io/problems/google-most-booked-hotel-room) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-most-booked-hotel-room) | Feb 16, 2024 | | **Google** | [Min Number of Chairs](https://www.fastprep.io/problems/google-meeting-rooms-ii) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-meeting-rooms-ii) | Feb 16, 2024 | | **Google** | [Min Days to Bloom](https://www.fastprep.io/problems/google-min-days-bouquets) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-min-days-bouquets) | Feb 16, 2024 | | **Google** | [Fill Matrix](https://www.fastprep.io/problems/google-fill-matrix) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-fill-matrix) | Feb 16, 2024 | | **Google** | [Time to Type a String](https://www.fastprep.io/problems/google-single-row-keyboard) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-single-row-keyboard) | Feb 16, 2024 | | **Google** | [Decreasing Subsequences](https://www.fastprep.io/problems/google-split-array-into-consecutive-subsequences) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-split-array-into-consecutive-subsequences) | Feb 16, 2024 | | **Google** | [Max Distance](https://www.fastprep.io/problems/google-pick-max-distance-pair) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-pick-max-distance-pair) | Feb 16, 2024 | | **Google** | [Stores and Houses](https://www.fastprep.io/problems/google-find-closest-store) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-closest-store) | Feb 16, 2024 | | **Google** | [Find Min Distance to Furthest Node (Google Tokyo)](https://www.fastprep.io/problems/google-find-min-distance-to-farthest-node) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-find-min-distance-to-farthest-node) | Feb 16, 2024 | | **Google** | [Pizza Shop (Google Tokyo)](https://www.fastprep.io/problems/google-closest-pizza-price) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-closest-pizza-price) | Feb 16, 2024 | | **Google** | [Relative Sort (Google Singapore)](https://www.fastprep.io/problems/google-minimum-swaps-to-make-sequences-increasing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/google-minimum-swaps-to-make-sequences-increasing) | Feb 16, 2024 | | **Snowflake** | [Radio waves](https://www.fastprep.io/problems/snowflake-radio-waves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-radio-waves) | Feb 15, 2024 | | **MathWorks** | [Count Valid Passwords](https://www.fastprep.io/problems/mathwork-count-valid-passwords) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-count-valid-passwords) | Feb 15, 2024 | | **MathWorks** | [Get Maximum Reward Points](https://www.fastprep.io/problems/mathwork-get-maximum-reward-points) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mathwork-get-maximum-reward-points) | Feb 15, 2024 | | **ZipRecruiter** | [Count Distinct Swappable Digit Pairs](https://www.fastprep.io/problems/ziprecruiter-count-distinct-swappable-digit-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-count-distinct-swappable-digit-pairs) | Feb 15, 2024 | | **ZipRecruiter** | [Time Travel](https://www.fastprep.io/problems/ziprecruiter-time-travel) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-time-travel) | Feb 15, 2024 | | **ZipRecruiter** | [Exclusive Event Entry](https://www.fastprep.io/problems/ziprecruiter-exclusive-event-entry) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-exclusive-event-entry) | Feb 15, 2024 | | **ZipRecruiter** | [Distribute Integers Between Arrays](https://www.fastprep.io/problems/ziprecruiter-disctribute-integers-between-arrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ziprecruiter-disctribute-integers-between-arrays) | Feb 15, 2024 | | **Amazon** | [Find Recurring Name](https://www.fastprep.io/problems/amazon-find-recurring-names) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-recurring-names) | Feb 14, 2024 | | **Amazon** | [Find Requests In Queue](https://www.fastprep.io/problems/amazon-find-requests-in-queue) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-requests-in-queue) | Feb 14, 2024 | | **Meta** | [Buses in a Bustling Town](https://www.fastprep.io/problems/mt-busting-town-buses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/mt-busting-town-buses) | Feb 14, 2024 | | **Snowflake** | [Get Num Ways](https://www.fastprep.io/problems/snowflake-get-num-ways) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-get-num-ways) | Feb 14, 2024 | | **Snowflake** | [Find Maximum Number Live Threads](https://www.fastprep.io/problems/snowflake-find-maximum-number-live-threads) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-find-maximum-number-live-threads) | Feb 14, 2024 | | **TikTok** | [Maximum Value](https://www.fastprep.io/problems/tiktok-maximum-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-maximum-value) | Feb 14, 2024 | | **TikTok** | [Count Purchases](https://www.fastprep.io/problems/tiktok-count-purchases) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-count-purchases) | Feb 14, 2024 | | **TikTok** | [Calculate Validity](https://www.fastprep.io/problems/tiktok-calculate-validity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-calculate-validity) | Feb 14, 2024 | | **IBM** | [Validate Requests](https://www.fastprep.io/problems/ibm-request-parser) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-request-parser) | Feb 14, 2024 | | **Oracle** | [Get Discounted Price](https://www.fastprep.io/problems/oracle-get-discounted-price) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-get-discounted-price) | Feb 14, 2024 | | **Oracle** | [Cardinality Sort](https://www.fastprep.io/problems/oracle-cardinality-sort) | Coding | [![Practice][p]](https://www.fastprep.io/problems/oracle-cardinality-sort) | Feb 14, 2024 | | **IBM** | [Find Missing Integers](https://www.fastprep.io/problems/ibm-find-missing-integer) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-find-missing-integer) | Feb 08, 2024 | | **IBM** | [Merge Arrays](https://www.fastprep.io/problems/ibm-merge-arrays) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-merge-arrays) | Feb 08, 2024 | | **Amazon** | [Find Largest Set of Onion Bags](https://www.fastprep.io/problems/amazon-find-largest-set-of-onion-bags) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-largest-set-of-onion-bags) | Feb 06, 2024 | | **Amazon** | [Minimum Total Errors](https://www.fastprep.io/problems/amazon-min-errors) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-min-errors) | Feb 06, 2024 | | **Adobe** | [Get Minimum Operations](https://www.fastprep.io/problems/get-minimum-operations-adobe) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-minimum-operations-adobe) | Feb 06, 2024 | | **Twilio** | [Find Maximum Greatness](https://www.fastprep.io/problems/twilio-find-maximum-greatness) | Coding | [![Practice][p]](https://www.fastprep.io/problems/twilio-find-maximum-greatness) | Feb 06, 2024 | | **Twilio** | [Count Groups](https://www.fastprep.io/problems/twilio-count-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/twilio-count-groups) | Feb 06, 2024 | | **Snowflake** | [Array Reduction Algorithm](https://www.fastprep.io/problems/snowflake-array-reduction-algorithm) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-array-reduction-algorithm) | Feb 05, 2024 | | **Snowflake** | [Count Ways to Color Houses](https://www.fastprep.io/problems/snowflake-count-ways-to-color-houses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-count-ways-to-color-houses) | Feb 05, 2024 | | **Snowflake** | [Count Min Characters](https://www.fastprep.io/problems/snowflake-count-minimum-characters) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-count-minimum-characters) | Feb 05, 2024 | | **IBM** | [Find Y Values](https://www.fastprep.io/problems/ibm-find-y-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-find-y-value) | Feb 05, 2024 | | **IBM** | [Circles](https://www.fastprep.io/problems/ibm-circles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-circles) | Feb 05, 2024 | | **IBM** | [Get Min Moves](https://www.fastprep.io/problems/ibm-get-minimum-moves) | Coding | [![Practice][p]](https://www.fastprep.io/problems/ibm-get-minimum-moves) | Feb 05, 2024 | | **Akuna** | [Min Cost (Akuna Shang Hai)](https://www.fastprep.io/problems/akuna-min-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-min-cost) | Feb 02, 2024 | | **Akuna** | [Minimum Chunks Required (Akuna Shang Hai)](https://www.fastprep.io/problems/akuna-minimum-chunks-required) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-minimum-chunks-required) | Feb 02, 2024 | | **Akuna** | [Diffierence Calculator (Akuna Shang Hai)](https://www.fastprep.io/problems/akuna-difference-calculator) | Coding | [![Practice][p]](https://www.fastprep.io/problems/akuna-difference-calculator) | Feb 02, 2024 | | **Snowflake** | [Get Max Upgraded Servers](https://www.fastprep.io/problems/snowflake-get-max-upgraded-servers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-get-max-upgraded-servers) | Feb 02, 2024 | | **Snowflake** | [Efficient Cost](https://www.fastprep.io/problems/snowflake-efficient-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/snowflake-efficient-cost) | Feb 02, 2024 | | **TikTok** | [Segment Queries](https://www.fastprep.io/problems/tiktok-segment-queries) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-segment-queries) | Feb 02, 2024 | | **TikTok** | [Minimum Cycles](https://www.fastprep.io/problems/tiktok-minimum-cycles) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-minimum-cycles) | Feb 02, 2024 | | **TikTok** | [Stars and Bars](https://www.fastprep.io/problems/tiktok-stars-and-bars) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-stars-and-bars) | Feb 02, 2024 | | **TikTok** | [Longest OR](https://www.fastprep.io/problems/tiktok-longest-or) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-longest-or) | Feb 02, 2024 | | **TikTok** | [Get Server Index](https://www.fastprep.io/problems/tiktok-get-server-index) | Coding | [![Practice][p]](https://www.fastprep.io/problems/tiktok-get-server-index) | Feb 02, 2024 | | **Amazon** | [Dropped Requests](https://www.fastprep.io/problems/amazon-dropped-requests) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-dropped-requests) | Jan 27, 2024 | | **Amazon** | [Remove Anagrams](https://www.fastprep.io/problems/1.amazon-remove-anagram) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-remove-anagram) | Jan 27, 2024 | | **Amazon** | [Find Unique Values](https://www.fastprep.io/problems/amazon-find-unique-values) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-unique-values) | Jan 27, 2024 | | **Amazon** | [Execute Processes](https://www.fastprep.io/problems/amazon-execute-processes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-execute-processes) | Jan 27, 2024 | | **Amazon** | [Number of Suitable Locations](https://www.fastprep.io/problems/amazon-num-of-suitable-places) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-num-of-suitable-places) | Jan 27, 2024 | | **Amazon** | [Group Students](https://www.fastprep.io/problems/amazon-group-students) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-group-students) | Jan 27, 2024 | | **Amazon** | [Get Pairs Count](https://www.fastprep.io/problems/1.amazon-get-pairs-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amazon-get-pairs-count) | Jan 23, 2024 | | **Amazon** | [Rice Bags](https://www.fastprep.io/problems/max-set-size) | Coding | [![Practice][p]](https://www.fastprep.io/problems/max-set-size) | Jan 13, 2024 | | **Snowflake** | [Smallest Set Covering Intervals](https://www.fastprep.io/problems/smallest-set-covering-intervals) | Coding | [![Practice][p]](https://www.fastprep.io/problems/smallest-set-covering-intervals) | Jan 13, 2024 | | **Snowflake** | [Maximum Order Volume](https://www.fastprep.io/problems/phone-calls) | Coding | [![Practice][p]](https://www.fastprep.io/problems/phone-calls) | Jan 13, 2024 | | **Snowflake** | [Unequal Elements](https://www.fastprep.io/problems/find-max-length) | Coding | [![Practice][p]](https://www.fastprep.io/problems/find-max-length) | Jan 13, 2024 | | **Snowflake** | [Job Execution](https://www.fastprep.io/problems/get-minimum-operations) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-minimum-operations) | Jan 12, 2024 | | **Snowflake** | [Perfect Pairs](https://www.fastprep.io/problems/perfect-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/perfect-pairs) | Jan 12, 2024 | | **Snowflake** | [Cross the Threshold](https://www.fastprep.io/problems/get-max-barrier) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-max-barrier) | Jan 12, 2024 | | **Snowflake** | [Get Min Cost](https://www.fastprep.io/problems/hackerland-get-min-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/hackerland-get-min-cost) | Jan 12, 2024 | | **Snowflake** | [String Patterns](https://www.fastprep.io/problems/calculate-ways) | Coding | [![Practice][p]](https://www.fastprep.io/problems/calculate-ways) | Jan 12, 2024 | | **Amazon** | [Get Discount Pairs](https://www.fastprep.io/problems/get-discount-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-discount-pairs) | Jan 11, 2024 | | **Amazon** | [Get Min Cost Data](https://www.fastprep.io/problems/get-min-cost-data) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-min-cost-data) | Jan 10, 2024 | | **Goldman Sachs** | [Compute Parameter Value](https://www.fastprep.io/problems/compute-parameter-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/compute-parameter-value) | Jan 09, 2024 | | **Goldman Sachs** | [Max Min](https://www.fastprep.io/problems/max-min) | Coding | [![Practice][p]](https://www.fastprep.io/problems/max-min) | Jan 09, 2024 | | **Goldman Sachs** | [Chair Requirements](https://www.fastprep.io/problems/goldman-min-chair) | Coding | [![Practice][p]](https://www.fastprep.io/problems/goldman-min-chair) | Jan 09, 2024 | | **Goldman Sachs** | [Autocorrect Prototype](https://www.fastprep.io/problems/autocorrect-prototype) | Coding | [![Practice][p]](https://www.fastprep.io/problems/autocorrect-prototype) | Jan 09, 2024 | | **Goldman Sachs** | [Do They Belong?](https://www.fastprep.io/problems/points-belong) | Coding | [![Practice][p]](https://www.fastprep.io/problems/points-belong) | Jan 09, 2024 | | **Goldman Sachs** | [Preprocess Dates](https://www.fastprep.io/problems/preprocess-date) | Coding | [![Practice][p]](https://www.fastprep.io/problems/preprocess-date) | Jan 09, 2024 | | **Goldman Sachs** | [Compare Strings](https://www.fastprep.io/problems/compare-strings) | Coding | [![Practice][p]](https://www.fastprep.io/problems/compare-strings) | Jan 09, 2024 | | **Goldman Sachs** | [Plus Mult Array](https://www.fastprep.io/problems/plus-mult-array) | Coding | [![Practice][p]](https://www.fastprep.io/problems/plus-mult-array) | Jan 09, 2024 | | **Goldman Sachs** | [Better Compression](https://www.fastprep.io/problems/better-compression) | Coding | [![Practice][p]](https://www.fastprep.io/problems/better-compression) | Jan 09, 2024 | | **Goldman Sachs** | [Encircular](https://www.fastprep.io/problems/encircular) | Coding | [![Practice][p]](https://www.fastprep.io/problems/encircular) | Jan 09, 2024 | | **Goldman Sachs** | [Project Estimates](https://www.fastprep.io/problems/project-estimates) | Coding | [![Practice][p]](https://www.fastprep.io/problems/project-estimates) | Jan 09, 2024 | | **Goldman Sachs** | [Longest Subarray](https://www.fastprep.io/problems/longest-subarray) | Coding | [![Practice][p]](https://www.fastprep.io/problems/longest-subarray) | Jan 09, 2024 | | **Amazon** | [Count Maximum Profitable Groups](https://www.fastprep.io/problems/count-maximum-profitable-groups) | Coding | [![Practice][p]](https://www.fastprep.io/problems/count-maximum-profitable-groups) | Jan 07, 2024 | | **Cisco** | [Maximum Chocolates from Jars](https://www.fastprep.io/problems/cisco-maximum-chocolates-from-jars) | Coding | [![Practice][p]](https://www.fastprep.io/problems/cisco-maximum-chocolates-from-jars) | Jan 02, 2024 | | **Amazon** | [Count Games Won By Group1 (AMZ CN)](https://www.fastprep.io/problems/amazon-how-many-games-did-the-team-win) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-how-many-games-did-the-team-win) | Dec 27, 2023 | | **Amazon** | [Get Min Distance (AMZ CN)](https://www.fastprep.io/problems/amazon-find-minimum-dist) | Coding | [![Practice][p]](https://www.fastprep.io/problems/amazon-find-minimum-dist) | Dec 27, 2023 | | **Amazon** | [Check Similar Passwords](https://www.fastprep.io/problems/check-similar-passwords) | Coding | [![Practice][p]](https://www.fastprep.io/problems/check-similar-passwords) | Dec 23, 2023 | | **Amazon** | [Maximum Score in Balanced String](https://www.fastprep.io/problems/maximum-score-in-balanced-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/maximum-score-in-balanced-string) | Dec 23, 2023 | | **Amazon** | [Location of Data After Transfers](https://www.fastprep.io/problems/location-of-data-after-transfers) | Coding | [![Practice][p]](https://www.fastprep.io/problems/location-of-data-after-transfers) | Dec 23, 2023 | | **Amazon** | [Get Score Difference](https://www.fastprep.io/problems/1.amz-get-score-difference) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.amz-get-score-difference) | Dec 19, 2023 | | **Amazon** | [Get Success Value](https://www.fastprep.io/problems/get-success-value) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-success-value) | Dec 19, 2023 | | **Amazon** | [Get Minimum Fruits](https://www.fastprep.io/problems/1.get-minimum-fruits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.get-minimum-fruits) | Dec 19, 2023 | | **Amazon** | [Warehouse Distribution](https://www.fastprep.io/problems/warehouse-allocation) | Coding | [![Practice][p]](https://www.fastprep.io/problems/warehouse-allocation) | Dec 15, 2023 | | **IBM** | [Get Min Cost](https://www.fastprep.io/problems/1.ibm-get-min-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.ibm-get-min-cost) | Dec 14, 2023 | | **Amazon** | [Erase Pairs](https://www.fastprep.io/problems/erase-pairs) | Coding | [![Practice][p]](https://www.fastprep.io/problems/erase-pairs) | Dec 13, 2023 | | **Amazon** | [Cet Maximum Reward Points](https://www.fastprep.io/problems/1.get-max-reward-points) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.get-max-reward-points) | Dec 13, 2023 | | **Amazon** | [Get Priorities After Execution](https://www.fastprep.io/problems/get-priorities-after-execution) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-priorities-after-execution) | Dec 06, 2023 | | **Amazon** | [Maximum Book Copies](https://www.fastprep.io/problems/1.max-book-copies) | Coding | [![Practice][p]](https://www.fastprep.io/problems/1.max-book-copies) | Dec 03, 2023 | | **SpaceX** | [Simplified Time-Based Key-Value Store](https://www.fastprep.io/problems/spacex-simplified-time-map) | Coding | [![Practice][p]](https://www.fastprep.io/problems/spacex-simplified-time-map) | Nov 02, 2023 | | **Amazon** | [Get Average Standing](https://www.fastprep.io/problems/get-average-standing) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-average-standing) | Sep 24, 2023 | | **Amazon** | [Minimum Time Spent](https://www.fastprep.io/problems/minimum-time-spent) | Coding | [![Practice][p]](https://www.fastprep.io/problems/minimum-time-spent) | Sep 24, 2023 | | **Amazon** | [Count Max Num Teams](https://www.fastprep.io/problems/count-max-num-teams) | Coding | [![Practice][p]](https://www.fastprep.io/problems/count-max-num-teams) | Sep 24, 2023 | | **Odoo** | [HTML Elements Single-Tag Correction](https://www.fastprep.io/problems/odoo-html-elements-single-tag-correction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/odoo-html-elements-single-tag-correction) | Sep 18, 2023 | | **Amazon** | [Cet Mean Rank Count](https://www.fastprep.io/problems/get-mean-rank-count) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-mean-rank-count) | Aug 31, 2023 | | **Amazon** | [Count Spikes](https://www.fastprep.io/problems/count-spikes) | Coding | [![Practice][p]](https://www.fastprep.io/problems/count-spikes) | Aug 31, 2023 | | **Amazon** | [Get Minimum Costs](https://www.fastprep.io/problems/get-minimum-cost) | Coding | [![Practice][p]](https://www.fastprep.io/problems/get-minimum-cost) | Aug 31, 2023 | | **Amazon** | [Find Minimum Inefficiency](https://www.fastprep.io/problems/find-minimum-inefficiency) | Coding | [![Practice][p]](https://www.fastprep.io/problems/find-minimum-inefficiency) | Aug 31, 2023 | | **Goldman Sachs** | [Encryption Valididy](https://www.fastprep.io/problems/encryption-validity) | Coding | [![Practice][p]](https://www.fastprep.io/problems/encryption-validity) | Aug 31, 2023 | | **Goldman Sachs** | [Decoding String](https://www.fastprep.io/problems/decoding-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/decoding-string) | Aug 31, 2023 | | **Goldman Sachs** | [Is Possible](https://www.fastprep.io/problems/is-possible) | Coding | [![Practice][p]](https://www.fastprep.io/problems/is-possible) | Aug 31, 2023 | | **Arcesium** | [Add Digits](https://www.fastprep.io/problems/arcesium-add-digits) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-add-digits) | Aug 30, 2023 | | **Arcesium** | [Binary Tree Maximum Path Sum](https://www.fastprep.io/problems/arcesium-binary-tree-maximum-path-sum) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-binary-tree-maximum-path-sum) | Aug 30, 2023 | | **Arcesium** | [Reverse First K Characters in Every 2K Block](https://www.fastprep.io/problems/arcesium-reverse-first-k-every-2k-block) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-reverse-first-k-every-2k-block) | Aug 05, 2023 | | **Arcesium** | [Detect a Cycle in Directed Hate Relationships](https://www.fastprep.io/problems/arcesium-detect-cycle-in-directed-hate-graph) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-detect-cycle-in-directed-hate-graph) | Aug 05, 2023 | | **Arcesium** | [Robo Data Sharing Direction](https://www.fastprep.io/problems/arcesium-robo-data-sharing-direction) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-robo-data-sharing-direction) | Jul 17, 2023 | | **IMC** | [Busy Intersection](https://www.fastprep.io/problems/imc-busy-intersection) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-busy-intersection) | Mar 27, 2023 | | **Odoo** | [Maximum Profit from an Increasing Price Triplet](https://www.fastprep.io/problems/odoo-maximum-profit-increasing-triplet) | Coding | [![Practice][p]](https://www.fastprep.io/problems/odoo-maximum-profit-increasing-triplet) | Jan 24, 2023 | | **IMC** | [Reaching Points with Perfect-Square Obstacles](https://www.fastprep.io/problems/imc-perfect-square-forbidden-reaching-points) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-perfect-square-forbidden-reaching-points) | Sep 07, 2022 | | **Careem** | [Design a Highly Available Distributed Key-Value Store](https://www.fastprep.io/system-design/highly-available-distributed-key-value-store) | System design | [![Practice][p]](https://www.fastprep.io/system-design/highly-available-distributed-key-value-store) | Aug 08, 2022 | | **Revolut** | [Make Account Transfers Safe Under Concurrency](https://www.fastprep.io/project-coding/revolut-concurrency-safe-account-transfer) | AI coding | [![Practice][p]](https://www.fastprep.io/project-coding/revolut-concurrency-safe-account-transfer) | Jun 20, 2022 | | **Skyscanner** | [Design Flight Price Threshold Alerts](https://www.fastprep.io/system-design/flight-price-threshold-alerts) | System design | [![Practice][p]](https://www.fastprep.io/system-design/flight-price-threshold-alerts) | Jun 10, 2022 | | **Grubhub** | [Design a Restaurant Menu Catalog Service](https://www.fastprep.io/system-design/restaurant-menu-catalog-service) | System design | [![Practice][p]](https://www.fastprep.io/system-design/restaurant-menu-catalog-service) | Mar 26, 2022 | | **Grubhub** | [Air Traffic Control System](https://www.fastprep.io/low-level-design/air-traffic-control-system) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/air-traffic-control-system) | Mar 26, 2022 | | **Yelp** | [Design a Priority Venue Invitation Platform](https://www.fastprep.io/system-design/priority-venue-invitation-platform) | System design | [![Practice][p]](https://www.fastprep.io/system-design/priority-venue-invitation-platform) | Nov 19, 2021 | | **IMC** | [Adding Stack 2.0](https://www.fastprep.io/problems/imc-adding-stack-2-0) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-adding-stack-2-0) | Sep 24, 2021 | | **IMC** | [Knight Minimum Moves with a Fixed Bishop](https://www.fastprep.io/problems/imc-knight-minimum-moves-fixed-bishop) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-knight-minimum-moves-fixed-bishop) | Sep 24, 2021 | | **Arcesium** | [Capital Gains Tax from Trades](https://www.fastprep.io/problems/arcesium-capital-gains-tax-from-trades) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-capital-gains-tax-from-trades) | Feb 23, 2021 | | **Twitch** | [Design a Video Watch and Like Experience](https://www.fastprep.io/system-design/video-watch-and-like-experience) | System design | [![Practice][p]](https://www.fastprep.io/system-design/video-watch-and-like-experience) | Dec 12, 2020 | | **Twitch** | [Design and Implement a Battleship Game](https://www.fastprep.io/low-level-design/battleship-game) | Low-level design | [![Practice][p]](https://www.fastprep.io/low-level-design/battleship-game) | Dec 12, 2020 | | **IMC** | [Hidden Artifacts](https://www.fastprep.io/problems/imc-hidden-artifacts) | Coding | [![Practice][p]](https://www.fastprep.io/problems/imc-hidden-artifacts) | Oct 20, 2020 | | **Postman** | [Configuration System](https://www.fastprep.io/problems/postman-configuration-system) | Coding | [![Practice][p]](https://www.fastprep.io/problems/postman-configuration-system) | Sep 23, 2020 | | **Postman** | [Large Responses](https://www.fastprep.io/problems/postman-large-responses) | Coding | [![Practice][p]](https://www.fastprep.io/problems/postman-large-responses) | Sep 23, 2020 | | **IMC** | [Account Balance Over Threshold](https://www.fastprep.io/problems/imc-account-balance-over-threshold) | SQL | [![Practice][p]](https://www.fastprep.io/problems/imc-account-balance-over-threshold) | Sep 12, 2020 | | **IMC** | [Transaction Balance Over Threshold](https://www.fastprep.io/problems/imc-transaction-balance-over-threshold) | SQL | [![Practice][p]](https://www.fastprep.io/problems/imc-transaction-balance-over-threshold) | Sep 12, 2020 | | **Postman** | [Minimum Swaps to Sort an Array](https://www.fastprep.io/problems/postman-minimum-swaps-to-sort) | Coding | [![Practice][p]](https://www.fastprep.io/problems/postman-minimum-swaps-to-sort) | Aug 27, 2020 | | **Postman** | [Validate IP Address](https://www.fastprep.io/problems/postman-validate-ip-address) | Coding | [![Practice][p]](https://www.fastprep.io/problems/postman-validate-ip-address) | Aug 27, 2020 | | **Arcesium** | [K-th Character in an Infinite String](https://www.fastprep.io/problems/arcesium-kth-character-in-infinite-string) | Coding | [![Practice][p]](https://www.fastprep.io/problems/arcesium-kth-character-in-infinite-string) | Aug 08, 2020 | | **Postman** | [Design an Authenticated Page Presence Counter](https://www.fastprep.io/system-design/authenticated-page-presence-counter) | System design | [![Practice][p]](https://www.fastprep.io/system-design/authenticated-page-presence-counter) | Mar 31, 2020 | | **SpaceX** | [Design a Satellite Fleet Management and Ground-Station Communications Platform](https://www.fastprep.io/system-design/satellite-fleet-management-ground-station-communications) | System design | [![Practice][p]](https://www.fastprep.io/system-design/satellite-fleet-management-ground-station-communications) | Feb 26, 2020 | | **Postman** | [Without Whitespaces](https://www.fastprep.io/problems/postman-without-whitespaces) | Coding | [![Practice][p]](https://www.fastprep.io/problems/postman-without-whitespaces) | Sep 26, 2019 | | **Postman** | [Maximum Laptop Rating in a Price Range](https://www.fastprep.io/problems/postman-maximum-laptop-rating) | Coding | [![Practice][p]](https://www.fastprep.io/problems/postman-maximum-laptop-rating) | Aug 30, 2019 | ---

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