摘要: 链接:https://ac.nowcoder.com/acm/contest/881/E 题目描述 Bobo has a string of length 2(n + m) which consists of characters `A` and `B`. The string also has a 阅读全文
posted @ 2019-07-22 20:21 明霞 阅读(275) 评论(0) 推荐(0) 编辑