Package g0301_0400.s0326_power_of_three

Class Solution

java.lang.Object
g0301_0400.s0326_power_of_three.Solution
public class Solution extends Object
326 - Power of Three.

Easy

Given an integer n, return true if it is a power of three. Otherwise, return false.

An integer n is a power of three, if there exists an integer x such that n == 3x.

Example 1:

Input: n = 27

Output: true

Example 2:

Input: n = 0

Output: false

Example 3:

Input: n = 9

Output: true

Constraints:

  • -231 <= n <= 231 - 1

Follow up: Could you solve it without loops/recursion?

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • isPowerOfThree

      public boolean isPowerOfThree(int n)