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弱智地wa，原来是0 == -0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 Followed by:
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