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用并查集

Posted by xfxyjwf at 2006-05-04 02:06:29 on Problem 1258
In Reply To:晕死了。karuscal算法怎么会超时?? Posted by:yangguo981 at 2006-05-04 00:33:41
建议看看别人的程序,好好学习一下

> 不过觉得无向图判断有无环好麻烦啊,要找连通分量,还要对每个连通分量计算边数,再比较。
> 搞了2个小时搞不定,
> 最后用prim搞定了,10分钟……
> ft了。

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