hdu1828 Picture (线段树+扫描线)(求周长并) Picture
题目:http://acm.hdu.edu.cn/showproblem.php?pid=1828题意:给定n(nPictureTime Limit: 6000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3826 Accepted Sub