2014年8月2日
Codeforces Beta Round #91 (Div. 1 Only) E. Lucky Array
摘要： E. Lucky ArrayPetya loves lucky numbers. Everybody knows that lucky numbers are positive integers whose decimal representation contains only the lucky... 阅读全文
posted @ 2014-08-02 22:10 acvc 阅读(367) 评论(0) 推荐(0) 编辑