2017年7月26日
HDU-3974 Assign the task题解报告【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 @ 2017-07-26 20:58 Mychael 阅读(221) 评论(0) 推荐(0) 编辑