2014 年 5月 13 日随笔档案 - neverlandly

2014年5月13日

摘要： The count-and-say sequence is the sequence of integers beginning as follows:1, 11, 21, 1211, 111221, ...1 is read off as "one 1" or 11.11 is read off ... 阅读全文

posted @ 2014-05-13 12:30 neverlandly 阅读(292) 评论(0) 推荐(0)