Hello,

I was trying this problem 510C - Fox And Names, basically it asks us to do a topological sort on a DAG. I used a modified

DFS to do that — 11664540.

I do a DFS to check for a cycle, then I do a topological sort on the DAG if there are no cycles. But I was getting

WA 12th case. I tried reading others' solutions but couldn't find what was wrong with my code. I then used an O(V^2)

topological sort and it passed. Can someone point my mistake. Thanks , Help much appreciated :)