Display first n terms of fibonacci series.

//Program to display first n terms of fibonacci series.
#include<iostream.h>
#include<conio.h>
void main()
{
    clrscr();
    long a,b=0,c=1,d=1;
    cout<<"Enter the number of terms of fibnoacci series to display: ";
    cin>>a;
    cout<<"The first "<<a<<" terms of fibonacci series are: "<<endl;
    for(int i=0;i<=a;i++)
    {
        d=b+c;
        b=c;
        c=d;
        cout<<d<<" ";
    }
    getch();
}