LeetCode-Excel Sheet Column Number-解题报告

原题链接https://leetcode.com/problems/excel-sheet-column-number/

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 

直接水过

class Solution {public:    int titleToNumber(string s) {int res = 0;for (int i = 0; i < s.length(); ++i)res = res * 26 + (s[i] - 'A' + 1);return res;}};