Duy_e's blog

By Duy_e, 21 month(s) ago, In English

This morning, I was notified about cheating-like behavior by Codeforces Bot, including two more people marshall990 and BinaryQueen2 who have the same submission for the problem 1706C - Qpwoeirut And The City. However, no information were provided to clarify who they actually are. Nevertheless, these are the submissions which has a lot of similarities to my code.

164781026 by BinaryQueen2

164792634 by marshall990

164753251 By me

I myself have had two evidences for this case:

  • I have submitted my code faster than them (please check for the submission time)

  • They resubmitted their answers from time to time, including changing the data type and algorithm sequel. This still have some traces of my code, and you can easily notice those once you open and compare my code with their code.

It can be concluded that my code has been copied, reordered the sequel and made changes to the data type. I hope Codeforces administrators will remove this as a result of false positive detection.

[Quick update]

I found that, the earlier submissions of those two users were the same code as many skipped submission in this problem. And that code was the different idea from mine. This prove that those guys are trying to cheat.

[Another update]

The guy who copied my code has comfirmed. Thanks for your comfirmation!!!

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