[LeetCode 342] Power of Four
Given an integer (signed 32 bits), write a function to check whether it is a power of 4.
Example:
Given num = 16, return true.
Given num = 5, return false.
Follow up: Could you solve it without loops/recursion?
DiffcultyEasy
Similar Problems
[LeetCode 231] Power of Two Easy
[LeetCode 326] Power of Three Easy