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晕死了。karuscal算法怎么会超时？？

Posted by yangguo981 at 2006-05-04 00:33:41 on Problem 1258 
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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