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Re:WA的朋友试试这组数据——回复

Posted by BAR_NO1 at 2012-07-28 10:47:46 on Problem 2187
In Reply To:WA的朋友试试这组数据 Posted by:liqichao at 2009-10-28 11:38:45

> 4
> 0 0
> 1 0
> 2 0
> -1 0
> 
> 
> 输出 9

为什么是9呢？
应该是1吧，(2,0)--->(-1,0)就这组吧

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