I am getting a WA on test 9 on this DIV 1A.
Is there a problem with my 'poss' function or the very dfs function itself?
This is my submission.
Stuck in a problem
I am getting a WA on test 9 on this DIV 1A.
Is there a problem with my 'poss' function or the very dfs function itself?
This is my submission.