2023年7月11日
Educational Codeforces Round 96 (Rated for Div. 2)E
摘要： You are given a string s. You have to reverse it — that is, the first letter should become equal to the last letter before the reversal, the second le 阅读全文
posted @ 2023-07-11 11:42 清初 阅读(27) 评论(0) 推荐(0)