fak.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Sat, 13 Dec 2008 17:58:13 +0100
changeset 20 5fec678f931b
parent 9 c3fecc82ade6
child 63 5a82f89d607e
permissions -rw-r--r--
getpass for windows does not work committer: Markus Bröker <mbroeker@largo.homelinux.org>

/**
 * test/demos/fak.c
 * Copyright (C) 2008 Markus Broeker
 */

#include <stdio.h>
#include <stdlib.h>

long fak (int i)
{
    if (i == 0)
        return 1;
    else if (i > 0)
        return (i * fak (i - 1));
    else
        return (i * fak (i + 1));
}

int main (int argc, char **argv)
{
    int number;

    printf ("Enter a number: ");
    if (scanf ("%d", &number) < 0) {
        printf ("READ ERROR\n");
        return EXIT_FAILURE;
    }

    printf ("The faktorial of %d is %ld\n", number, fak (number));

    return EXIT_SUCCESS;
}