Excel Sheet Column Title

描述

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.

题解

package algorithms

func convertToTitle(n int) string {
	res := ""

	for n > 0 {
		n--
		res = string(byte(n%26)+'A') + res
		n /= 26
	}

	return res
}