2413. Smallest Even Multiple
EasyLeetCodeGiven 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
How to solve the problem
Check the Given number is odd or even by n%2:
Even:Result : n Odd:Result : n*2
Code
Python
class Solution:
def smallestEvenMultiple(self, n: int) -> int:
if n % 2 == 0:
return n
else:
return 2 * n
Complexity
Time complexity: O(1)
Space complexity: O(1)
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