摘要: Codeforces Round #687 (Div. 2, based on Technocup 2021 Elimination Round 2) A. Prison Break https://codeforces.com/contest/1457/problem/A 题意:给定一个n行m列的 阅读全文
posted @ 2020-11-29 21:50 RioTian 阅读(140) 评论(0) 推荐(0) 编辑