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
1 class Solution { 2 public: 3 int titleToNumber(string s) { 4 5 int n=s.length(); 6 int result=0; 7 for(int i=0;i<n;i++) 8 { 9 int num=s[i]-‘A‘+1; 10 result=result*26+num; 11 } 12 13 return result; 14 } 15 };
【leetcode】Excel Sheet Column Number
原文：http://www.cnblogs.com/reachteam/p/4190285.html