2018年9月7日
题解报告：hdu 2196 Computer（树形dp）
摘要： Problem Description A school bought the first computer some time ago(so this computer's id is 1). During the recent years the school bought N-1 new co 阅读全文
posted @ 2018-09-07 23:53 霜雪千年 阅读(280) 评论(0) 推荐(0) 编辑