How to approach?

PROBLEM: link text
What is the algorithmic approach to solving this problem? Pls help/

The question is based on graph theory’s topic how to find strongly connected components refer this for more details.

No one interested in guiding me.That’s sad :((

Yes, I know it’s an scc related problem, I already applied Kosaraju algorithm, but I think there is more to do along with this algo, that’s why I am asking for the approach after applying the Algo.If you could mention the step, that would be a great help.