2019年4月20日
[CF]Codeforces Round #552 (Div. 3)(坑)
摘要： E. Two Teams Description There are 𝑛n students standing in a row. Two coaches are forming two teams — the first coach chooses the first team and the 阅读全文
posted @ 2019-04-20 15:06 kaike 阅读(209) 评论(0) 推荐(0) 编辑