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Question

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 

My C# Solution

public class Solution {
    public int TitleToNumber(string s) {
        var result = 0;
        for(var i = 0; i < s.Length; i++)
        {
            result = result * 26 + (s[i] - 'A' + 1);
        }
        return result;
    }
}