Greetings to all,

I was solving this problem https://codeforces.net/contest/2074/problem/A, and submitted 2 codes in morning time. In morning, the second submission showed accepted and 1st one was failed.

But when I checked just 10 mins before, the second submission was in the queue status. So I again submitted the similar code (with one space), then it showed accepted.

Is there any problem in the server or is this some kind of bug, found out by mistake?

Does anyone knows more about this?

Image is attached for the reference.