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
可以看成是一道26进制转换为10进制的题目。
跟 [LeetCode]168.Excel Sheet Column Title是配套题目
/*********************************
* 日期：2015-01-30
* 作者：SJF0115
* 题目: 171.Excel Sheet Column Number
* 网址：https://oj.leetcode.com/problems/excel-sheet-column-number/
* 结果：AC
* 来源：LeetCode
* 博客：
**********************************/
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
class Solution {
public:
int titleToNumber(string s) {
int size = s.size();
int result = 0;
for(int i = 0;i < size;++i){
result = result * 26 + (s[i] - 'A') + 1;
}//for
return result;
}
};
int main(){
Solution solution;
string str("AAABA");
int result = solution.titleToNumber(str);
// 输出
cout<<result<<endl;
return 0;
}
[LeetCode]171.Excel Sheet Column Number
原文地址：http://blog.csdn.net/sunnyyoona/article/details/43309209
