2016年5月22日
Codeforces Round #353 (Div. 2) A. Infinite Sequence
摘要： Vasya likes everything infinite. Now he is studying the properties of a sequence s, such that its first element is equal to a (s1 = a), and the differ 阅读全文
posted @ 2016-05-22 15:39 俺叫王梦涵 阅读(142) 评论(0) 推荐(0) 编辑