My sol for 2nd Question : https://ideone.com/kDYhav

It is giving Wrong Answer... I am unable to debug.. Please help..

problem MEXUM(problem_link)

My sol(sol_link) is giving WA. I could not figure out, why is this happening. Someone please help me find out the error.

Hi codeforces community,

In this post I would add problems that I am unable to solve or have some queries. I Hope that in future, these problems would accumulate to form a good set of problems.

Problems

1. 107D // div1, unsolved, unable to understand editorial

Please explain the unsolved ones. Thanks for any help.