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Re:干什么要sqrt....用平方直接*4不就行了？....

Posted by mixter at 2005-09-09 23:15:27 on Problem 2610
In Reply To:AC了，居然会这样...L这题似乎有精度问题 Posted by:fjnu_jxd_001 at 2005-09-09 20:32:56 
>     算距离的时候，用sqrt后就过了，用原来的准确值反而会WA。
>     或者是不是我有没考虑的？
> 
> p.s.
>     这题真是一波三折啊……
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