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2020-2021:teams:manespace:codeforces_round_645_div2 [CVBB ACM Team]

2020-2021:teams:manespace:codeforces_round_645_div2

这是本文档旧的修订版！

Codeforces Round 645(div2)

A

题意：有一块n*m的矩阵，定义

2020-2021/teams/manespace/codeforces_round_645_div2.1590594595.txt.gz · 最后更改: 2020/05/27 23:49 由 iuiou