C Program to Generate Fibonacci Series of N Numbers using Command-Line Argument

This C Program generates fibonacci series of n numbers using command-line argument.

Here is source code of the C Program to generate fibonacci series of n numbers using command-Llne argument. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

1. /*  

2.  * C Program to Generate Fibonacci Series of N Numbers using 

3.  * Command-Line Argument

4.  */

5. #include <stdio.h>

7. void main(int argc, char * argv[])

8. {

9.     int n, last = 0, prev = 1, curr, cnt;

10.     n = atoi(argv[1]);

11.     printf("Printing first %d fibonacci nos. -> ", n);

12.     printf("%d ", last);

13.     printf("%d ", prev);

14.     cnt = 2;

15.     while (cnt< = n-1)

16.     {

17.         curr = last + prev;

18.         last = prev;

19.         prev = curr;

20.         cnt++;

21.         printf("%d ", curr);

22.     }

23.     printf("\n");

24. }

$ gcc arg5.c
$ a.out 10
Printing first 10 fibonacci nos. -> 0 1 1 2 3 5 8 13 21 34