2022年1月8日
1136 A Delayed Palindrome (20 分)（回文数）
摘要： Consider a positive integer N written in standard notation with k+1 digits ai as ak…a1a0 with 0 ⇐ ai < 10 for all i and ak > 0. Then N is palindromic 阅读全文
posted @ 2022-01-08 23:10 勇往直前的力量 阅读(36) 评论(0) 推荐(0)