2018SDIBT_国庆个人第二场
摘要:
A.codeforces1038A You are given a string ss of length nn, which consists only of the first kk letters of the Latin alphabet. All letters in string ss 阅读全文
posted @ 2018-10-02 18:53 一只小毛球 阅读(225) 评论(0) 推荐(0) 编辑