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数据给的 u v居然是单向边!!!!建立双向边就TLE!!???

Posted by winforbest at 2017-04-05 17:56:54 on Problem 3321
addEdge(u, v);
addEdge(v, u);
这样就TLE了。。。。
改成
addEdge(u, v);
700多ms过。。。。

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