2019年6月28日
D - Project Presentation(DFS序+倍增LCA）
摘要： You are given a tree that represents a hierarchy in a company, where the parent of node u is their direct manager. Each employee is assigned a project 阅读全文
posted @ 2019-06-28 21:09 cherish__lin 阅读(241) 评论(0) 推荐(0) 编辑