What is the most efficient way to determine if a directed graph is singly connected?

Posted by zebraman on Stack Overflow See other posts from Stack Overflow or by zebraman
Published on 2010-03-24T20:50:39Z Indexed on 2010/03/24 20:53 UTC
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directed-graph

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algorithm

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adjacency-list

I am working on an assignment where one of the problems asks to derive an algorithm to check if a directed graph G=(V,E) is singly connected (there is at most one simple path from u to v for all distinct vertices u,v of V.

Of course you can brute force check it, which is what I'm doing right now, but I want to know if there's a more efficient way. Could anyone point me in the right direction?

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