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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
一样的。
1 public class Solution { 2 public int titleToNumber(String s) { 3 int result = 0; 4 int level = 1; 5 for(int i = s.length() - 1; i > -1; i --){ 6 result += (s.charAt(i) - ‘A‘ + 1) * level; 7 level *= 26; 8 } 9 return result; 10 } 11 }
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原文地址：http://www.cnblogs.com/reynold-lei/p/4228809.html
