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F题题目大意

Posted by ecust_linpeng at 2009-10-18 10:41:39
In Reply To:宁波的现场boaring Posted by:ecust_linpeng at 2009-10-18 08:49:55
给出n个中间有洞的矩形(n<=50000)
坐标范围是0,0到50000,50000
中间的洞也是一个矩形

input
8个坐标
代表矩形的左下角,右上角,内部矩形洞的左下角,右上角

求出覆盖的面积

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