The contest was good, problem D was very interesting. However, I want to expose two sussy users.
Problem C: https://mirror.codeforces.com/contest/2048/submission/297305429
This guy just change his code(may be not his code) to just 1 line, why did he need to do that??? May be he copied someone else's code and change it so system testing couldn't detect it?
Additionally, is another user's code for C is very similar to above code, but in another language:
Problem C: https://mirror.codeforces.com/contest/2048/submission/297300414
And there is more, their codes for D are also similar, just different language Problem D: https://mirror.codeforces.com/contest/2048/submission/297334479
Problem D: https://mirror.codeforces.com/contest/2048/submission/297331568
I still don't know if this is cheating or not, but if it is, I hope they will know their mistakes and never do it again. Cheating is unfair.
Sorry for my bad english
hope they didn't
they did
random thought in my mind, what if we start organizing sting operations against cheaters? like making "streams" that point to an ip grabber and directly reporting that? idk
May be
But they can't be banned. As you can see, they cheated very obviously, but you can't do anything to them.