Many submissions of the first problem of Codeforces Round 976 (Div. 2) and Divide by Zero 2.0 failed on system testing but are accepted and people are getting their ratings. Major example is of submission https://mirror.codeforces.com/contest/2020/submission/283563817 pls solve this as i want to get my rating back and more fairly. People who downvote this are probably the ones whom submissions are getting tle'd.
Auto comment: topic has been updated by Shaheer_SundarSTEM (previous revision, new revision, compare).
If you are referring the solution would TLE if submitted again. Then the reason should be it passed the original system test. And after-contest hack are later added. This might not be ideal (the original system test should be strong), but it's by design: contest submissions are not rejudged for new data after the contest.
But i should get the rating i deserve as people who have bad logic and dont know when to divide and when to add should not get higher rank then people who actually thought before submitting.
I don't know the reason but some how my solution passes in C++ 20 but TLE in C++ 17 version. I guess probably long long is slower in C++ 17 or something, I can't tell exactly.