【leetcode】Excel Sheet Column Title

Excel Sheet Column Title

Given a non-zero 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 

类似于数制转换，只不过1对应A，而不是0对应A

 class Solution {
 public:
     string convertToTitle(int n) {

         string res="";

         while(n>)
         {
             int tmp=(n-)%;
             res.push_back('A'+tmp);

             n=(n-)/;
         }

         string result(res.rbegin(),res.rend());
         return result;
     }
 };