摘要: 地址:http://acm.hdu.edu.cn/showproblem.php?pid=1025 题目: Problem Description JGShining's kingdom consists of 2n(n is no more than 500,000) small cities w 阅读全文
posted @ 2016-04-08 19:37 weeping 阅读(242) 评论(0) 推荐(0) 编辑