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Re:

Posted by CCNUhaitun at 2009-04-25 11:01:36 on Problem 2242
In Reply To:为什么会WA呢？测试数据都通过了啊。 Posted by:597503076 at 2009-03-19 09:17:26 
你把输入改为while(scanf("%lf%lf%lf%lf%lf%lf",&x1,&y1,&x2,&y2,&x3,&y3)!=EOF)
试一下，我看了一下，你的计算过程应该是正确的。
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