Smallest Even Multiple

easy · verified · 88.3% accepted · 1,051 likes · top 99%

Description

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.

Solution