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The input line segments are such that each intersection point comes from the intersection of exactly one horizontal segment and one vertical segment.

Posted by lvyun at 2008-10-21 10:15:44 on Problem 1693
In Reply To:这题的测试数据很弱啊... 有种情况没有考虑进去!!!!!!!!!!!!!!!!!!!!!大家都过了 Posted by:yang1z1 at 2008-07-25 12:37:44

>          _________       __________
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> 上面的三条线在同一 x 轴上..没有考虑..就是用5条线围成的矩形

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