if(num==0||num==1)
cout<<“Fibonacci Number”<<endl;
else
{
while(nth<=num)
{
nth=a+b;
a=b;
b=nth;
}
}
if(a==num)
cout<<"\nFibonacci Number";
else
cout<<"Not a Fibonacci Number";
I wrote the above code and it gave correct answer. Is there any better or simpler way to find out?