Package g0301_0400.s0342_power_of_four
Class Solution
- java.lang.Object
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- g0301_0400.s0342_power_of_four.Solution
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public class Solution extends Object
342 - Power of Four.Easy
Given an integer
n
, returntrue
if it is a power of four. Otherwise, returnfalse
.An integer
n
is a power of four, if there exists an integerx
such thatn == 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?
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Constructor Summary
Constructors Constructor Description Solution()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
isPowerOfFour(int n)
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