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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 16:36:10 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 16:34:04 
 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
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