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晕,0 0 也算是树,就是啊!!In Reply To:晕,0 0 也算是树 Posted by:ACM06063apocaleaf at 2006-08-21 15:34:13 WA了一次,空节点也算是树的.. 还有注意,树里是没有环的,而且任何父节点都只有一条边指向子节点(不然的话,从根节点到该子节点就会有两条以上的路径). 可以利用上述限制条件快速判定. Followed by: Post your reply here: |
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