Hello Codeforces, I'm back :)

Yesterday there was Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) and also cheaters...

Let's see.

Cheaters are tejavojjala, hybrid and shivamg_isc. They are from IIIT Allahabad university, they solved same problems and their solving time is similar. I want to pass problem A and B, because they are easy problems, but I want to note that shivamg_isc copied B from tejavojjala. Names of variables are changed.

Their solution for problem C: here, here and here. Codes are same, but little things changed...

For problem E hybrid's code is different, but other's code is same (submissions : here, here and here).

UPDATE: Users chill21 and born.kira are also cheaters! See their submissions for problem B, bombie's and chill21's. chill21 changed name of function recur to dfs :D How smarty. He did problem B with dfs :D. And born.kira wrote // Never Underestimate Yourself // on top of code, by cheating you are underestimating yourself...

Good luck and contests :) Don't cheat!

Sorry for poor English.