168. Excel Sheet Column Title

难度: Easy

题目描述

Given an integer columnNumber, return its corresponding column title as it appears in an Excel sheet.

For example:

A -> 1
B -> 2
C -> 3
...
Z -> 26
AA -> 27
AB -> 28 
...

 

Example 1:

Input: columnNumber = 1
Output: "A"

Example 2:

Input: columnNumber = 28
Output: "AB"

Example 3:

Input: columnNumber = 701
Output: "ZY"

 

Constraints:

• 1 <= columnNumber <= 231 - 1

解题思路

代码实现

解决方案

java

class Solution {
    public String convertToTitle(int columnNumber) {
        
    }
}