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
class Solution {
public:
string convertToTitle(int n) {
char c;
string result;
if(n < 1) return "";
while(n)
{
n--;
c = n%26 + ‘A‘;
result = c + result;
n = n/26;
}
return result;
}
};
(leetcode)Excel Sheet Column Title
原文：http://www.cnblogs.com/chdxiaoming/p/4550050.html