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Re:J题怎么孤立节点啊 ？

Posted by Eruca at 2008-11-23 16:38:28
In Reply To:J题怎么孤立节点啊 ？ Posted by:wangxuyang at 2008-11-23 16:27:02 
> RT
用带根结点的并查集

需要统计下根的孩子数
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