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有个小trick,如果u到v没有路径,那么v到u可以没有路径,不影响v是否为sinks, 此外,做了几个连通分量的题,我觉得该抛弃Kosaraju了,速度慢,内存还多,导论不给力啊!!

Posted by DE_SEAN at 2011-04-20 23:28:40 on Problem 2553 and last updated at 2011-04-20 23:29:20


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