2018年6月30日
Assign the task HDU - 3974（dfs序+线段树）
摘要： There is a company that has N employees(numbered from 1 to N),every employee in the company has a immediate boss (except for the leader of whole compa 阅读全文
posted @ 2018-06-30 15:00 WTSRUVF 阅读(330) 评论(0) 推荐(0) 编辑