2016年9月27日
LA4329:Ping pong(树状数组)
摘要： Description N(3N20000) ping pong players live along a west-east street(consider the street as a line segment). Each player has a unique skill rank. To 阅读全文
posted @ 2016-09-27 18:41 勿忘初心0924 阅读(177) 评论(0) 推荐(0) 编辑