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两者本来就不等价呀

Posted by atlas_of_rruucc at 2005-09-24 21:37:40 on Problem 1851
In Reply To:这么变态 Posted by:chengmingvictor at 2005-09-24 21:11:01
> 我为了避免浮点误差把if (dx == 0  || dy == 0 || dx == dy) 
> 写成if (dx < EPS  || dy < EPS || abs(dx - dy) < EPS) 居然WA了(其中EPS = 1e-10)
> 结果改成第一种就对了

abs(dx)<EPS 

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