Excel Sheet Column Title

LeetCode Q 168 - Excel Sheet Column Title

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

Example 1: Input: 1 ; Output: "A"

Example 2: Input: 28 ; Output: "AB"

Example 3: Input: 701 ; Output: "ZY"

Solution

Algorithm
Bases Convert

Code:

public String convertToTitle(int n) {
  StringBuilder sb = new StringBuilder();
  
  while (n != 0) {
    n--;
    sb.append((char) (n % 26 + 'A'));
    n /= 26;
  }

  return sb.reverse().toString();
}