As I said, can you help me to find a problem. I read it on codeforces in a certain time, on another computer, and now I implemented it already, but I cannot find where to submit, no matter how I try.

The problem statement like: The main character have to move from [1, 1] to [n, m] (of a board) and avoid the black cell (there are k of those cell, with coordinates giving in Input).

If you see that problem, please tell me the problem code or the name, maybe anything you can remember.

Thank so much for your reading.