---
categories: Data structures
---

## Problems
- [Stogovi](https://open.kattis.com/problems/stogovi)
- [Persistent Queue](http://codeforces.com/gym/100431) [^1]
- [Persistent Bookcase](http://codeforces.com/contest/707/problem/D)

## See also
- [Persistent segment tree]()
- [Union-find data structure#undo-operation]()


[^1]: <http://codeforces.com/group/qo1icaI3vI/blog/entry/843>