2022年2月15日
Codeforces Round #771 (Div. 2) D
摘要： links https://codeforces.com/contest/1638/problem/D problem there are n*m cells,each cell has a color.(color<=n*m) everytime we can use a brush whose 阅读全文
posted @ 2022-02-15 14:57 starlightlmy 阅读(79) 评论(0) 推荐(0)