120510 has clearly been using AI to cheat in various contests. His submissions are clearly from ChatGPT:
Yesterday, he submitted and got WA 4 times on problem B, and then he deleted his entire template to copy ChatGPT's code:
We need to get rid of dirty AI cheaters like this to keep codeforces clean.








It's not for a week but half a year, are you sure, this is your last chance
I reached out and tried to reason with him about the harm of cheating, but it didn’t seem to help. Disappointing, but I did what I could ;-;