Hi! Today, at the begining of round #845, I faced some problems with CF. Don't know if it's all about my own connection or anything about CF's servers, but I wasn't aware from it and submitted my code for problem A, which resulted in a loading page. As I saw CF isn't loading, I resubmitted the same code with m1.codeforces (since I thought my previous submission wouldn't be sent at all). And I even stoped loading codeforces.com to avoid resubmission. But the code was already posted and I realized this too late.

Now I'm just thinking... shouldn't be some other rules about penalty of resubmissions? Maybe CF could just check all codes and don't count two submissions with a same code as a penalty? Or just allows any resubmission during downtime of the server?

Anyway, the round wasn't rated for me, and I'm advising these things for future rounds...