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LeetCode 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 

 1 public class Solution { 2     public String convertToTitle(int n) { 3         String ret=""; 4          5         while (n>0) { 6             n--; 7             char letter=(char) (n%26+‘A‘); 8             ret=letter+ret; 9             n=n/26;10         }11         12         return ret;13         14     }15 }

 

LeetCode Excel Sheet Column Title