LeetCode-in-Java
2413. Smallest Even Multiple
Easy
Given a positive integer n, return the smallest positive integer that is a multiple of both 2 and n.
Example 1:
Input: n = 5
Output: 10
Explanation: The smallest multiple of both 5 and 2 is 10.
Example 2:
Input: n = 6
Output: 6
Explanation: The smallest multiple of both 6 and 2 is 6. Note that a number is a multiple of itself.
Constraints:
1 <= n <= 150
Solution
public class Solution {
public int smallestEvenMultiple(int n) {
return n % 2 == 0 ? n : n * 2;
}
}