In the last contest, which I couldn't take part, two users cheated. .eray and Lutfu submitted almost exactly the same code for problem B. I put the links.
submission of .eray: https://codeforces.net/contest/1354/submission/80463880
submission of Lutfu: https://codeforces.net/contest/1354/submission/80509151
This things shouldn't happen.
MikeMirzayanov pls handle it.
Yeah, definitely plagiarised.
codeforces send warning to both ids when they are found plagiarised . and if they are caught again their ids will be blocked . so i don't see any thing to panic in this every community is liable to such activities which they handle in their way .
You should ping MikeMirzayanov in your post for it to be seen.
Also I found this code very similar to these codes:
submission of sirac: 80489227
hierarchy is same. S/he only add defines and changing variables names