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Re:不是的

Posted by 407811696 at 2011-08-25 12:47:38 on Problem 2662
In Reply To:Dijkstra＋拓扑～～～～ Posted by:winsweet at 2008-04-25 00:19:38 
> 题目规则：
> 从A能走到B的前提是，B到终点的距离小于A到终点的最小距离。。
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