Power of 2

//{ Driver Code Starts
//Initial Template for C++

#include<bits/stdc++.h>
using namespace std;


// } Driver Code Ends
//User function Template for C++

class Solution{
    public:
    // Function to check if given number n is a power of two.
    bool isPowerofTwo(long long n){
        if(n==1)
        return 1;
        if(n==0)
        return 0;
        while(n>1){
            if(n%2!=0)
            return 0;
            n=n/2; 
            
        }
        
       
       return 1;
        
    }
};