2015年9月21日
hdu 5439（找规律）
摘要： The sequence is generated by the following scheme. 1. First, write down 1, 2 on a paper. 2. The 2nd number is 2, write down 2 2’s (including the one o 阅读全文
posted @ 2015-09-21 17:27 Przz 阅读(195) 评论(0) 推荐(0) 编辑