Live2d Test Env
摘要: You are given an integer sequence a1,a2,…,ana1,a2,…,an. Find the number of pairs of indices (l,r)(l,r) (1≤l≤r≤n1≤l≤r≤n) such that the value of median 阅读全文
posted @ 2018-07-10 21:15 nimphy 阅读(287) 评论(0) 推荐(0) 编辑