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Re:你这复杂度是闹哪样...

Posted by jwpan at 2012-07-19 23:20:53 on Problem 3259
In Reply To:Re:你这复杂度是闹哪样... Posted by:braveTester at 2012-03-22 23:39:51
可不可以增加一个虚拟顶点,然后从这个顶点连一条有向边(正权)到每个其他顶点,最后把这个虚拟顶点作为源?

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