Can anyone tag people in the comment section who got top 20 rank in ICPC this year?

I believe they should be congratulated by everybody. :)

Hello everybody,

I was trying to solve this problem (http://codeforces.me/problemset/problem/359/D) but I am getting wrong answer on test case 39. I am not getting why it is happening so.

My algo is simple and straight forward. For each query, I am trying to find value of r — l and update my answer array according to that only.

Can anybody please help?

Thanks :)

My code — http://codeforces.me/contest/359/submission/34557265

Hello guys, I was solving this problem (http://codeforces.me/contest/161/problem/D).

After trying for sometime , I read the editorial of the problem and I am not being able to understand the meaning of this line.

Can anyobdy help me with this?

I basically want to understand about logic or proof behind this.

Hello, I am going to participate in upcoming amritapuri regionals. I wanted to know the problem quality of KGP regionals. Since codechef has not kept an online mirror this time, its impossible to get to know about it without asking someone who participated in it.

Can anyone share their feedback and kind of problems in this regional?