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Re:kruskal确实比prim慢

Posted by giggle at 2014-04-11 20:47:31 on Problem 1789
In Reply To:kruskal确实比prim慢 Posted by:Zenomyth at 2013-10-29 10:59:26 
> 我的经过优化的kruskal用了422ms，而没有任何优化的prim只用360ms。
> 理论上kruskal的复杂度为ElogE，而prim为（E+V)logV，prim对于稠密图确实快一些

Kruscal 最耗时的部分是对所有边进行排序，时间复杂度为ElogE，在稠密图边很多的情况下自然更耗时了.
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