Fibonacci Matematika Diskrit

#include <iostream>
#include <conio.h>

using namespace std;
long int y,n;char in;
bool state=true;

int main()
{
    while(state){
    long int x=1,y,i,j,k;
    long int a=0,b=1,c;

    cout<<" n = ";
    cin>>y;

    cout<<a;
    for(i=0; i<=y-1; i++){
            c=a+b; b=a; a=c;
            if(i>=x-1)
            {
                cout<<" ";
                cout<<" "<<c;
                cout<<" ";
            }
        }
        cout<<endl;
       }
 }