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
public class Solution {
public String convertToTitle(int n) {
String c="";
while(n>0)
{
int x=n%26;
if(x==0)
{
c=String.valueOf((char)(‘A‘-1+26))+c;
n=n/26-1;
}
else
{
c=String.valueOf((char)(‘A‘-1+x))+c;
n=n/26;
}
}
return c;
}
}
Leetcode#168Excel Sheet Column Title
原文：http://7061299.blog.51cto.com/7051299/1639988