摘要：
http://acm.hdu.edu.cn/showproblem.php?pid=1255覆盖的面积Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 2933 Accepted Submission(s): 1447 Problem Description给定平面上若干矩形,求出被这些矩形覆盖过至少两次的区域的面积.Input输入数据的第一行是一个正整数T(1=2,计算面积，改变其cover值：cover+=line3.flag,因为li 阅读全文
