Power of Four - Coder Playground

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v-1.2.10

Power of Four

time limit per test: 2 seconds
memory limit per test: 100 megabytes

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

Constraints:
`-2³¹ <= n <= 2³¹ - 1`

Date	Status	Language	Runtime	Memory

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Input: 16

Expected Output: true

Input: 5

Expected Output: false

Input: 1

Expected Output: true