2023年8月7日
Codeforces Round 890 (Div. 2)
摘要： ## [A.Tales of a Sort](https://codeforces.com/contest/1856/problem/A) ### 题目大意 Alphen has an array of positive integers $a$ of length n. Alphen can pe 阅读全文
posted @ 2023-08-07 16:50 ljfyyds 阅读(56) 评论(0) 推荐(1)