Dear Contest Authors and Coordinators (Vladosiya, mainyutin, ssor96, vmanosin7, ZergTricky),

I am writing to bring to your attention a concerning observation regarding the submissions for Problem D in Codeforces 938 Div3 Contest. Upon reviewing several submissions, it has come to my attention that a significant portion of them appear to be identical or highly similar.

I urge the contest authors and coordinators to conduct a thorough investigation into this matter and take appropriate action if code plagiarism is found to have occurred. Preserving the integrity of programming contests is crucial for maintaining a fair and competitive environment for all participants.

Below are links to some of the submissions in question:

https://mirror.codeforces.com/contest/1955/submission/255677438

https://mirror.codeforces.com/contest/1955/submission/255719237

https://mirror.codeforces.com/contest/1955/submission/255699876

https://mirror.codeforces.com/contest/1955/submission/255704053

https://mirror.codeforces.com/contest/1955/submission/255668552

https://mirror.codeforces.com/contest/1955/submission/255686490

UPD:

https://mirror.codeforces.com/contest/1955/submission/255743345

https://mirror.codeforces.com/contest/1955/submission/255721307

Check out these two submissions as well. They both have the same solution for problem E in the same contest.

Youtube: https://www.youtube.com/watch?v=L08Rksge2v4

See this as well. This guy has been streaming solutions for the contest. So I think some of the guy would have seen this during contest and then used the exact same solution.

Your prompt attention to this matter is greatly appreciated.

Thank you for your cooperation.