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不知为何还是WA,难道还有其他没有水的情况,请赐教

Posted by honghu at 2006-05-01 14:49:56 on Problem 2826
没有水的情况应该就是下面的这几种吧:
两条线不相交,如果相交,左边或右边的口被遮住,或者交点是某条线的那个纵坐标较高的那点,或者某条线段水平放置

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