How to find mother vertex in a directed graph in O(n+m)?

When googling I actually found the answer here If this is homework, you should think twice before peeking :).

When googling I actually found the answer here. If this is homework, you should think twice before peeking :).

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.