Fibonnaci series

NOTE :
              
// indicates comments.This wont get printed in the output.This is used for for documentation purpose.

PROGRAM:

#include<stdio.h>
#include<conio.h>
 int n1=0,n2=1,n3;     // global declaration of variables
 void printFibonacci(int n)     //global defination
    {
    if(n>0){
n3 = n1 + n2;
n1 = n2;
n2 = n3;
printf("%d ",n3);
printFibonacci(n-1);
    }
}
void main()
{
    int n;
    clrscr();
    printf("Enter the number of elements: ");
    scanf("%d",&n);

    printf("Fibonacci Series: ");
    printf("%d %d ",0,1);
    printFibonacci(n-2);//n-2 because 2 numbers are already printed

    getch();
}

OUTPUT :