From: Micha³ Nowotka (mmmnow_at_[hidden])
Date: 2008-04-16 17:36:46
In most cases if you ask how to find cycles you really mean 'how to
find strongly connected components' :
http://en.wikipedia.org/wiki/Strongly_connected_component
think it over...
Cheers,
Micha³ Nowotka