#342

Power of Four

pupil · 435 · lc easy +25 · verified · 51.8% accepted · 4,465 likes · top 41%

Description

Given an integer n, return true if it is a power of four, or false otherwise.

An integer n is a power of four if there exists an integer x such that n == 4^x.

Example 1:

Input: n = 16

Output: true

Example 2:

Input: n = 5

Output: false

Example 3:

Input: n = 1

Output: true

Code

1

2

3

class Solution:
    def isPowerOfFour(self, n: int) -> bool:

class Solution:
    def isPowerOfFour(self, n: int) -> bool: