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fabs 和abs 让我WA了n次,差一点推翻逻辑重写!!!!!

Posted by lunliu at 2014-02-26 13:46:05 on Problem 1175 and last updated at 2014-02-26 13:47:00
根据距离和判断 是可行的 ,对于本题目来说。。。。

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