Excel Sheet Column Number
Related to question Excel Sheet Column Title
Given a column title as appear in an Excel sheet, return its corresponding column number.
For example:
A -> 1
B -> 2
C -> 3
...
Z -> 26
AA -> 27
AB -> 28
class Solution {
public:
int titleToNumber(string s) { int n=s.length();
int result=;
for(int i=;i<n;i++)
{
int num=s[i]-'A'+;
result=result*+num;
} return result;
}
};