摘要: Nearest Common Ancestors Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 23795 Accepted: 12386 Description A rooted tree is a well-known da 阅读全文
posted @ 2016-03-30 22:53 樱花庄的龙之介大人 阅读(210) 评论(0) 推荐(0) 编辑