## Problems
- [LUCIFER Number](http://www.spoj.com/problems/LUCIFER/)
- [Ticket Draw](https://open.kattis.com/problems/tickets)
- [Tractor](https://open.kattis.com/problems/tractor)
- [New Lottery Game](https://codingcompetitions.withgoogle.com/codejam/round/0000000000432a90/0000000000433096)
- [Odd Elimination](https://projecteuler.net/problem=539)
- [A weird recurrence relation](https://projecteuler.net/problem=463)

## See also
- [Dynamic programming]()

## External links
- [How to count integers between large A and B with a certain property?](http://stackoverflow.com/questions/22394257/how-to-count-integers-between-large-a-and-b-with-a-certain-property/22394258#22394258)
- [Counting problems from A to B](http://codeforces.com/blog/entry/8221)