Exos

ex3/ft_print_combn.c

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_print_combn.c                                   :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lclerel- <lclerel-@learner.42.tech>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/03/05 19:08:08 by lclerel-          #+#    #+#             */
+/*   Updated: 2026/03/05 19:08:53 by lclerel-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+
+void	ft_put_tab(int *tab, int n)
+{
+	int		i;
+	char	c;
+
+	i = 0;
+	while (i < n)
+	{
+		c = tab[i] + '0';
+		write(1, &c, 1);
+		i++;
+	}
+	if (tab[0] != (10 - n))
+	{
+		write(1, ", ", 2);
+	}
+}
+
+void	ft_recursive(int *tab, int n, int pos, int start)
+{
+	int	i;
+
+	if (pos == n)
+	{
+		ft_put_tab(tab, n);
+		return ;
+	}
+	i = start;
+	while (i <= 9)
+	{
+		tab[pos] = i;
+		ft_recursive(tab, n, pos + 1, i + 1);
+		i++;
+	}
+}
+
+void	ft_print_combn(int n)
+{
+	int	tab[10];
+
+	if (n > 0 && n < 10)
+	{
+		ft_recursive(tab, n, 0, 0);
+	}
+}
+
+/*int	main(void)
+{
+	write(1, "Test n = 2 :\n", 13);
+	ft_print_combn(2);
+	write(1, "\n\n", 2);
+	write(1, "Test n = 3 :\n", 13);
+	ft_print_combn(3);
+	write(1, "\n\n", 2);
+	write(1, "Test n = 9 :\n", 13);
+	ft_print_combn(9);
+	write(1, "\n\n", 2);
+}*/