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这题数据分明就是错的。害我WA了这么久。我跟cqf的程序对拍之后发现,如果对于相切的情况,要统计面积为0的区域。这个显然不符合平常的看法!

Posted by Mithril at 2006-03-28 08:27:27 on Problem 2776
例如这个数据:

3
0 0 1 4
1 0 2 4
2 0 3 4

输出4就WA到死
输出5才能过。

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