Hello I need some help about the problem 368B (link : http://codeforces.me/problemset/problem/368/B) My solution is : http://codeforces.me/contest/368/submission/14799431

and it works perfectly on codeblocks but giving wrong answer in Codeforces. Can anyone please explain why ? Thanks in advance.

Hi, I'm a newbie coder. I have been participating contests on codeforces for a few months. Yesterday I came to know about 'Upsolving' and I'm really confused about it. The thing is, I always solve problems by my own. Now, is it good to see the solution after the contest? And if I see the tutorial of the contest then how can it be helpful for me? Please explain someone. Thanks in advance.