/* Fibonacci (first n) - Program to print the first n terms of fibonacci series */

/* We assume that the fibonacci series starts with 1 1 */

#include  <stdio.h>
#include  <conio.h>

void main()
{
    long  a=1,b=1, c ;
    int  i, n ;
    clrscr() ;
    printf("Enter n: ") ;
    scanf("%d", &n) ;
    printf("Fibonacci series is as shown: \n") ;
    if(n==1)
        printf("%ld", a) ;
    else if(n==2)
        printf("%ld %ld", a, b) ;
    else if(n>2)
        {
            printf("%ld %ld", a, b) ;
            for(i=1 ; i<=n-2 ; i++)
                {
                    c=a+b ;
                    printf(" %ld", c) ;
                    a=b ;
                    b=c ;
                }
        }
    getch();
}

/*
Output 1:

Enter n: 1
Fibonacci series is as shown:
1

Output 2:

Enter n: 2
Fibonacci series is as shown:
1 1

Output 3:

Enter n: 6
Fibonacci series is as shown:
1 1 2 3 5 8
*/

/*
Note:
If the fibonacci series starts with 0 1 then all we need to do is initialize a=0 instead of a=1
*/