2016年10月5日
codeforces 580D：Kefa and Dishes
摘要： Description When Kefa came to the restaurant and sat at a table, the waiter immediately brought him the menu. There were n dishes. Kefa knows that he 阅读全文
posted @ 2016-10-05 22:46 ljh_2000 阅读(294) 评论(0) 推荐(0) 编辑