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Re:其实，用并查集做也不错。效率高，内存少。简单。

Posted by 0943047777 at 2011-04-12 22:30:37 on Problem 2386
In Reply To:其实，用并查集做也不错。效率高，内存少。简单。 Posted by:0943047777 at 2011-04-12 22:06:40 
汗。 
dfs搜索尽然0MS。代码也才700+bytes。
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