Problem
Given a positive integer, return its corresponding column title as appear in an Excel sheet.
Example
For example:
1 -> A
2 -> B
3 -> C
...
26 -> Z
27 -> AA
28 -> AB
...
Example 1:
Input: 1
Output: "A"
Example 2:
Input: 28
Output: "AB"
Example 3:
Input: 701
Output: "ZY"
Code
static int var = [](){
std::ios::sync_with_stdio(false);
cin.tie(NULL);
return 0;
}();
class Solution {
public:
string convertToTitle(int n) {
string res = "";
string tmpstr = "A";
while(n){
n--;
tmpstr[0] += n%26;
res = tmpstr + res;
tmpstr = "A";
n = n / 26;
}
return res;
}
};