2019年5月4日
LCA最近公共祖先-- HDU 2586
摘要： 题目链接 Problem Description There are n houses in the village and some bidirectional roads connecting them. Every day peole always like to ask like this 阅读全文
posted @ 2019-05-04 21:20 茶飘香~ 阅读(226) 评论(0) 推荐(0) 编辑