87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* ft_iterative_factorial.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: lclerel- <lclerel-@learner.42.tech> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2026/03/09 10:08:57 by lclerel- #+# #+# */
|
|
/* Updated: 2026/03/09 10:33:07 by lclerel- ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include <unistd.h>
|
|
|
|
void ft_putnbr(int nb)
|
|
{
|
|
char value;
|
|
|
|
if (nb == -2147483648)
|
|
{
|
|
write(1, "-2147483648", 11);
|
|
return ;
|
|
}
|
|
if (nb < 0)
|
|
{
|
|
write(1, "-", 1);
|
|
nb = -nb;
|
|
}
|
|
if (nb > 9)
|
|
{
|
|
ft_putnbr(nb / 10);
|
|
}
|
|
value = nb % 10 + '0';
|
|
write(1, &value, 1);
|
|
}
|
|
|
|
int ft_iterative_factorial(int nb)
|
|
{
|
|
int res;
|
|
|
|
res = 1;
|
|
if (nb < 0)
|
|
return (0);
|
|
if (nb == 0 || nb == 1)
|
|
return (1);
|
|
while (nb > 1)
|
|
{
|
|
res = res * nb;
|
|
nb--;
|
|
}
|
|
return (res);
|
|
}
|
|
|
|
/*int main(void)
|
|
{
|
|
int nb;
|
|
|
|
write(1, "Test avec factoriel de 5:", 25);
|
|
write(1, "\n", 1);
|
|
nb = ft_iterative_factorial(5);
|
|
ft_putnbr(nb);
|
|
write(1, "\n", 1);
|
|
write(1, "Test avec factoriel de 10:", 26);
|
|
write(1, "\n", 1);
|
|
nb = ft_iterative_factorial(10);
|
|
ft_putnbr(nb);
|
|
write(1, "\n", 1);
|
|
write(1, "Test avec factoriel de 20:", 26);
|
|
write(1, "\n", 1);
|
|
nb = ft_iterative_factorial(20);
|
|
ft_putnbr(nb);
|
|
write(1, "\n", 1);
|
|
write(1, "(20 depasse l'int limit, resultat negatif)", 42);
|
|
write(1, "\n", 1);
|
|
write(1, "Test avec factoriel de 0:", 25);
|
|
write(1, "\n", 1);
|
|
nb = ft_iterative_factorial(0);
|
|
ft_putnbr(nb);
|
|
write(1, "\n", 1);
|
|
write(1, "Test avec aucune factoriel:", 27);
|
|
write(1, "\n", 1);
|
|
nb = ft_iterative_factorial(-14);
|
|
ft_putnbr(nb);
|
|
write(1, "\n", 1);
|
|
return (0);
|
|
}*/
|