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
Java
public class Solution {
public int titleToNumber(String s) {
int k = 0;
for(int i=0; i< s.length(); i++)
{
int temp= s.charAt(i) - 'A' + 1;
k = k*26 + temp;
}
return k;
}
}