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Re:但sample明显有环牙

Posted by 200730690105 at 2009-10-25 19:27:05 on Problem 1861
In Reply To:但sample明显有环牙 Posted by:Pzjay at 2009-10-25 19:18:47 
这个题目的答案可以有环，也可以无环（只要满足最长边最短）。只不过无环的话简单的多了，用Kruscal就好了（因为用Kruscal求最小生成树的时候恰好具有最大边最短的性质，但prim只能求最小生成树，不能保证这个性质）
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