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Re:同意~

Posted by inowfordream at 2009-08-12 15:54:22 on Problem 2553
In Reply To:同意~ Posted by:dy_lengleng at 2009-05-01 10:25:33
> 才发现if可以起这么大的作用..
> if for every node w in G that is reachable from v, v is also reachable from w. 
> if是关键啊.

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