LeetCode Power Of Two

Description

Given an integer, write a function to determine if it is a power of two.

The original problem is here.

The original code is here.

My Solution

I solve this problem in C++, as below:

/*
*Power of Two
*Author: shuaijiang
*Email: zhaoshuaijiang8@gmail.com
*/

#include<iostream>
#include<vector>
#include <unordered_set>
#include<string.h>
#include<stdlib.h>
using namespace std;

class Solution {
public:
    bool isPowerOfTwo(int n) {
        if(n<=0)
            return false;
        if(n==1)
            return true;
        while(n>2&&n%2==0){
            if(n%2==0)
                n=n/2;
            else
                return false;
        }
        
        if(n%2==0)
            return true;
        else
            return false;
    }
};

Note

The input integer n must larger than zero. If n is equal to 1, return true.