摘要: 题目链接:https://ac.nowcoder.com/acm/contest/9699/D 题目描述: Bobo has n strings s1, ... , sn, and he would like to find the number of pairs i < j where si + 阅读全文
posted @ 2021-01-13 23:44 Carrout 阅读(157) 评论(0) 推荐(0) 编辑