2021年1月20日
Educational Codeforces Round 101 (Rated for Div. 2) B. Red and Blue
摘要： 题目： Monocarp had a sequence a consisting of n+m integers a1,a2,…,an+m. He painted the elements into two colors, red and blue; n elements were painted 阅读全文
posted @ 2021-01-20 09:05 ~K2MnO4 阅读(234) 评论(0) 推荐(0)