摘要: 链接: http://acm.hdu.edu.cn/showproblem.php?pid=5592Problem DescriptionZYBhas a premutationP,but he only remeber the reverse log of each prefix of the p... 阅读全文
posted @ 2015-12-06 13:03 pb2016 阅读(604) 评论(0) 推荐(0) 编辑