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我觉得按west降序→east降序这样排序比较好

Posted by bsblcc at 2015-12-24 12:17:44 on Problem 3067
这样sum(east-1)直接就是交点数了,好像许多结题报告都是升序排列减去下标?
另外防止0死循环还要都+1

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