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标准数据有这么一组,为什么会有这种情况呢?

Posted by tzzhwj at 2008-12-13 10:48:25 on Problem 3004
12 5
0 -5
0 5
-5 0
5 0
3 4
3 -4
4 -3
4 3
-3 4
-3 -4
-4 -3
-4 3

这些点到原点的距离都是5,按照标程,这些点都不会考虑建立铁路的,所以输出结果为0.

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