Flexible String
摘要：
题目链接 题目描述： You have a string $a$ and a string $b$. Both of the strings have length $n$. There are at most 10 different characters in the string a. You 阅读全文
posted @ 2023-02-03 20:40 KSzh 阅读(16) 评论(0) 推荐(0) 编辑