leetcode 168

Posted 2020-08-14

168. Excel Sheet Column Title

Given a positive integer, return its corresponding column title as appear in an Excel sheet.

For example:

    1 -> A
    2 -> B
    3 -> C
    ...
    26 -> Z
    27 -> AA
    28 -> AB 

给定一个正整数，返回它作为出现在Excel表中的正确列向标题。相当于26进制。
代码如下：

 1 class Solution {
 2 public:
 3     string convertToTitle(int n) {
 4         string ss;
 5         while(n > 0)
 6         {
 7             ss = (char)(--n % 26 + ‘A‘) + ss;
 8             n /= 26;
 9         }
10         return ss;
11     }
12 };