2015年12月20日
HDU 4169 树形DP
摘要： Wealthy FamilyProblem DescriptionWhile studying the history of royal families, you want to know how wealthy each family is. While you have various 'ne... 阅读全文
posted @ 2015-12-20 17:31 meekyan 阅读(227) 评论(0) 推荐(0) 编辑