昨天+今天晚上,打限度为K的最小生成树可是打死我了。 却发现自己对 Prim 的理解有错。 自己之前写 Prim 的时候像写 dijskra 一样,在提取队列中最小的点的时候是用的优先队列。 以为这样可以优化复杂度,真是的。。。 后面反正要枚举一下所有的该点的邻接点的,这个操作是 O(n) 的,前面优化有个 P 用! 最后 Prim 就是 O(n^2) 另外一种MST倒是可以用优先队列
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和愚蠢的人打交道 Humans are social creatures who seek personal validation based on how others interact with them. We feel good and important when others share our belief system and dejected when there’s
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This tip is absolutely and completely useless, and will even make applications that depend on timestamps have issues. It’s mostly just to be used as a cool trick you can show off to your friends, so
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