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Re:哪位大牛帮忙看看哪里错了，怎么老是WR呢？？？？？

Posted by bjss222 at 2007-03-03 16:45:00 on Problem 1491
In Reply To:Re:哪位大牛帮忙看看哪里错了，怎么老是WR呢？？？？？ Posted by:bjss222 at 2007-03-03 16:36:10 
>  就是这个 x = sqrt(3.0*n*(n-1)/sum);
> 我就是按直接算出互质的数对，再除以总的这样做的呀，sum是互质的个数
 改成 x = sqrt(3.0*n*(n-1)/sum);后就AC了，怎么不一样呢？？
  这两个有什么区别呢？都可以算开方的呀？
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