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您的PST到底是什么法宝啊?

Posted by LIANGLIANG at 2004-12-17 21:45:12 on Problem 1741
In Reply To:Re:请问这个题目怎么做,想不出低于N^2的算法... Posted by:uni at 2004-12-17 21:41:13
> 有一体叫BLANCE ACT,这里就是每次取BLANCE ACT的那个点做根,然后砍,变成森林,然后继续
> 
> 我的算法其实是很慢的,只是我的砍树是用我自己的PST做的.所以勉强不超

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