2018年8月14日
1026 Table Tennis (30)
摘要： A table tennis club has N tables available to the public. The tables are numbered from 1 to N. For any pair of players, if there are some tables open 阅读全文
posted @ 2018-08-14 15:51 王清河 阅读(348) 评论(0) 推荐(0)