Leetcode Excel Sheet Column Title

1. Topics

Given a positive integer, return its corresponding column title as appear in an Excel sheet.

For example:

    1, A    2, B    3, C    ...    AA, Z        

2. Solution 1

Class Solution {public:    string converttotitle (int n) {        string result;        String array[26] = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", " U "," V "," W "," X "," Y "," Z "};        while (n > 0) {            int indexnum = n;            if (Indexnum = = 0) {                indexnum = +            ;            } result = Array[indexnum-1] + result;            n = (n-1)/+;        }        return result;}    ;

Idea: is the concept of 26, similar to the question "Reverse Integer inverse an int number"

http://www.waitingfy.com/archives/1611

Leetcode Excel Sheet Column Title