摘要: The count-and-say sequence is the sequence of integers with the first five terms as following: 1. 1 2. 11 3. 21 4. 1211 5. 111221 1 is read off as "on 阅读全文
posted @ 2017-10-21 22:44 章鱼小年糕 阅读(124) 评论(0) 推荐(0) 编辑