2015年7月21日
Codeforces Beta Round #19 D. Points
摘要： DescriptionPete and Bob invented a new interesting game. Bob takes a sheet of paper and locates a Cartesian coordinate system on it as... 阅读全文
posted @ 2015-07-21 20:58 Herumw 阅读(139) 评论(0) 推荐(0) 编辑