02 2018 档案

775. Global and Local Inversions
摘要：We have some permutation A of [0, 1, ..., N - 1], where N is the length of A. The number of (global) inversions is the number of i < j with 0 <= i < j 阅读全文
posted @ 2018-02-05 21:15 再见，少年 阅读(311) 评论(0) 推荐(0) 编辑