摘要: 链接:https://ac.nowcoder.com/acm/contest/35146/B来源:牛客网 题目描述 There is a kingdom that has nnn cities connected by n−1n-1n−1 roads. All roads' length is 11 阅读全文
posted @ 2022-09-22 18:58 er007 阅读(25) 评论(0) 推荐(0) 编辑