Hi All, ↵
[Sereja and Increasing subsequence](https://www.codechef.com/DEC16/problems/SEAINCR) as the challenge is over , can anyone please give some hint how to approach this problem DEC Long challenge is over , can anyone please give some hint how to approach this problem [Sereja and Increasing subsequence](https://www.codechef.com/DEC16/problems/SEAINCR). (sorry for bad english)