摘要: 手速慢了,掉分 ## C. Another Permutation Problem [Problem - C - Codeforces](https://codeforces.com/contest/1859/problem/C) ### 题意 给定一个正整数$n$,设序列$p$为$n$的排列,求$ 阅读全文
posted @ 2023-08-13 16:13 wuyoudexian 阅读(165) 评论(0) 推荐(0)