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WA了半天想不通的看过来

Posted by lccycc at 2009-11-19 10:53:45 on Problem 2826 and last updated at 2009-11-19 10:56:10 
这题思路没什么难度 难度在精度误差
如果实在找不到哪里错 就不要用计算几何模板了 老老实实用8个int保存坐标再试一次
或者 可以将你的程序的输出部分加上1e-8 或者减去1e-8 分别交一次
http://hi.baidu.com/pojoflcc/blog/item/080c977abd0cc0fe0ad187ce.html
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