I am Chinese, my English is not good, please understand.
I found that two pieces of code are exactly the same during the hacking process of Codeforces Round 1043 (Div. 3).
I think this is a shameful act of plagiarism, or using a small and large account to compete together.
This is the link
https://mirror.codeforces.com/contest/2132/submission/334938339 https://mirror.codeforces.com/contest/2132/submission/334932605
