云胡

摘要： 题目描述Reverse digits of an integer.Example1: x = 123, return 321 Example2: x = -123, return -321思路一开始想的比较简单，直接循环取尾数*10。#includeusing namespace ... 阅读全文

摘要： 题目描述The string “PAYPALISHIRING” is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in ... 阅读全文