Class Solution


  • public class Solution
    extends Object
    342 - Power of Four\. Easy 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 == 4x. **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 **Follow up:** Could you solve it without loops/recursion?
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • isPowerOfFour

        public boolean isPowerOfFour​(int n)