2016年8月30日
Codeforces711
摘要： A ZS the Coder and Chris the Baboon are travelling to Udayland! To get there, they have to get on the special IOI bus. The IOI bus has nrows of seats. 阅读全文
posted @ 2016-08-30 21:40 ExiledPoet 阅读(524) 评论(0) 推荐(0)