摘要: 链接 http://codeforces.com/contest/123/problem/A 题目 You are given a string s, consisting of small Latin letters. Let's denote the length of the string a 阅读全文
posted @ 2017-10-26 22:54 水题收割者 阅读(309) 评论(0) 推荐(1) 编辑