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谢谢大牛的提示~~~

Posted by alpc55 at 2008-06-07 21:32:28 on Problem 1175
In Reply To:用距离和 Posted by:backstreetlili at 2008-06-06 00:08:01
> 哈哈,,我的 ac 了,可以用cluster 里所有点对之间的距离和做hash 函数,精度 8 为就够了,但用距离的平方的和不行。

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