I just participated in Codeforces Round 753 (Div. 3) from 2 weeks ago.

However, I just received this message from Codeforces a few hours ago. https://imgur.com/o1W17RA.

I wonder why I got this message?

I did not write my code with online compiler, but the code from the other 2 participants seem to be significantly similar with mine.

Here is my code : mathtsai/134110744. Here are the code from the other 2 participants : Francis777/134097170, dagger/134106401.

I and dagger were skipped in the contest, but Francis777 got some points from the contest.

I just read the tutorial for the problem D, and I found that the tutorial is almost the same with our code. https://mirror.codeforces.com/blog/entry/96604 I think it is just coincidence to the same code issue, and I think that I and dagger should not be skipped in the contest.

Please tell me how to solve this issue, great thanks!!!