power of 2

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin >> n;

    if ((n & (n - 1)) == 0)
    {
        cout << "Given number is power of 2" << endl;
    }
    else
    {
        cout << "number is not power of 2" << endl;
    }
    return 0;
}