Please not that the user that I am referring to is nihaaleee.
After briefly viewing the submissions of him/her, I am suspecting that this user is using "high-tech assistant" (a.k.a LLM), which I will explain with a few evidences that I have collected:
All of his/her submissions are commented very carefully and clean. (For more details, check his/her submission page)
Even though of their great performance in the round, they still received some "WA on test 1" on some VERY trivial problems, for instance problem A and B. (367607999, 367607609 and 367620091, moreover, after each failed submissions, the comments on those kept on getting more and more detailed).
After switching from Python to C++ after problem B, we can see that he/she used "if(cin>>t)" (367643392, 367648870, 367651867) and "if(!cin>>n) return;" (367643392) which is a very significant sign for the use of LLM.
These are all of the signs that raised my suspicion for this user. Thank you for reading. If I have falsely accused or created inconvenience for nihaaleee, sincerely sorry in advance. I hope to help codeforce to become a better and fairer place to compete and learn for everyone.
