摘要: http://acm.hdu.edu.cn/showproblem.php?pid=1394 //hdu 题目 Problem Description The inversion number of a given number sequence a1, a2, ..., an is the num 阅读全文
posted @ 2018-06-12 01:09 DarkScoCu 阅读(378) 评论(0) 推荐(0) 编辑