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Re:弱智地wa，原来是0 == -0

Posted by Crazycoder at 2008-07-18 18:26:48 on Problem 3648
In Reply To:弱智地wa，原来是0 == -0 Posted by:zfy0701 at 2008-07-15 14:34:39

> 在我的程序中，i号丈夫是i, i号妻子是-i,比赛时一直wa，
> 
> 刚刚去看了标程，i号丈夫是i, i号妻子是~i，大多数情况这两者区别不大，但是对于0的情况
> 
> 0 == -0
> 
> 但是0 != ~0，后来把 -改成~，ac了
> 
> 
这题求2-SAT怎么还是错了？有数据吗？

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