2017年12月8日
Chtholly's request code force-897B
摘要： If a number is palindrome and length of its decimal representation without leading zeros is even, we call it a zcy number. A number is palindrome mean 阅读全文
posted @ 2017-12-08 23:33 天之道，利而不害 阅读(422) 评论(0) 推荐(0) 编辑