So I took part in the Codeforces Round 886 for Div4 and quite enjoyed the contest. I was able to solve all but the last problem but unfortunately, my solution for the G task got hacked which was quite annoying then the next day after hacking and system testing it said that my solution for task F also isn't correct and that it TLE-d but during the contest (and after it) It clearly said that my solution is correct. I searched on Google and didn't find anyone with a similar problem. Can anyone explain what happened and is there any way to fix that?
You didn't find anyone with FSTs and hacking? What did you even google? The first result on google is this https://mirror.codeforces.com/blog/entry/6249
Basically, when people hack another people's submissions, server keeps hacking tests, so they will test them after contest to every submission. It was made because authors can't write a lot of tests which takes a lots of time, and people want contest more often.
So next time be fully confident before you send your solution.
Aha, thank you so much that is a bit annoying but at least it maked sense
Yeah, for sure. Once i was ~2000 place(which is very rare for me), but after contest my solution for problem A was dropped. Carrot showed ~+70, but after hacks it straightly went into negative side. :(