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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
class Solution { public: int titleToNumber(string s) { int n=s.length(); int res=0; for(int i=0;i<n;i++) { int tmp=s[i]-‘A‘+1; res=26*res+tmp; } return res; } };
leetcode[171]Excel Sheet Column Number
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原文地址：http://www.cnblogs.com/Vae98Scilence/p/4280668.html
