396 B
Executable File
396 B
Executable File
Given an integer n, return true if it is a power of three. Otherwise, return false.
An integer n is a power of three, if there exists an integer x such that n == 3x.
Example 1:
Input: n = 27 Output: true Explanation: 27 = 33 Example 2:
Input: n = 0 Output: false Explanation: There is no x where 3x = 0. Example 3:
Input: n = -1 Output: false Explanation: There is no x where 3x = (-1).