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 Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
boolean	isPowerOfThree(int n)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

isPowerOfThree

public boolean isPowerOfThree(int n)