Hi.

I solved problem 519E - A и B и аудитории using the solution suggested by the editorial and still it is slow when compared to others solutions. The strange thing is that there are some cases with maximum N and M that take ~0.1s to run, but there are others that are way slower, even though N and M are not maximum.

My solution took ~1.6s while there are some that took ~0.1s.

Why is my solution so slow?

My solution: 16864045 Example of a fast one: 10141947

Thanks for the help.