LeetCode 168. Excel Sheet Column Title

168. Excel Sheet Column Title
My Submissions QuestionEditorial Solution
Total Accepted: 59275 Total Submissions: 273414 Difficulty: Easy
Given a positive integer, return its corresponding column title as appear in an Excel sheet.

For example:

1 -> A
2 -> B
3 -> C
…
26 -> Z
27 -> AA
28 -> AB
Credits:
Special thanks to @ifanchu for adding this problem and creating all test cases.

Subscribe to see which companies asked this question

把 A~Z 对应 0 ~ 25
满 26 进 1
只要看当前 n-1 的值是否 /26 != 0
如果是的 则 将 (n-1) % 26 + 'A' 存储在 s 之前
如果不是 则 退出 while 循环

class Solution {public:    string convertToTitle(int n) {        string s;        while(n) {            s = (char)((n - 1) % 26 + 'A') + s;            n = (n - 1) / 26;        }        return s;    }};