// Write a program to check whether a given number is a power of 2

#include<iostream.h>

#include<conio.h>

void main()

{

int n,m,status=1;

clrscr();

cout<<"Enter a number: ";

cin>>n;

m=n;

while(n>2)

if(n%2==1)

{

status=0;

break;

}

else

n=n/2;

if(status)

cout<<m<<" is power of 2";

else

cout<<m<<" is not power of 2";

getch();

}