2015年7月10日
Codeforces Round #309 (Div. 2) C. Kyoya and Colored Balls
摘要： Kyoya Ootori has a bag with n colored balls that are colored with k different colors. The colors are labeled from 1 to k. Balls of the... 阅读全文
posted @ 2015-07-10 14:21 Herumw 阅读(110) 评论(0) 推荐(0) 编辑