168. Excel Sheet Column Title Easy

1/**
2 * [168] Excel Sheet Column Title
3 *
4 * Given an integer columnNumber, return its corresponding column title as it appears in an Excel sheet.
5 * For example:
6 * 
7 * A -> 1
8 * B -> 2
9 * C -> 3
10 * ...
11 * Z -> 26
12 * AA -> 27
13 * AB -> 28 
14 * ...
15 * 
16 *  
17 * Example 1:
18 * 
19 * Input: columnNumber = 1
20 * Output: "A"
21 * 
22 * Example 2:
23 * 
24 * Input: columnNumber = 28
25 * Output: "AB"
26 * 
27 * Example 3:
28 * 
29 * Input: columnNumber = 701
30 * Output: "ZY"
31 * 
32 *  
33 * Constraints:
34 * 
35 * 	1 <= columnNumber <= 2^31 - 1
36 * 
37 */
38pub struct Solution {}
39
40// problem: https://leetcode.com/problems/excel-sheet-column-title/
41// discuss: https://leetcode.com/problems/excel-sheet-column-title/discuss/?currentPage=1&orderBy=most_votes&query=
42
43// submission codes start here
44
45impl Solution {
46    pub fn convert_to_title(column_number: i32) -> String {
47        String::new()
48    }
49}
50
51// submission codes end
52
53#[cfg(test)]
54mod tests {
55    use super::*;
56
57    #[test]
58    fn test_168() {
59    }
60}
61