diff --git a/Makefile b/Makefile
index 0c6fbfb..2718b7f 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,7 @@ clean:
 	@$(MAKE) -C $(FT_PRINTF_DIR) clean
 
 fclean: clean
-	rm -f $(NAME)
+	rm -f $(NAME) checker
 	@$(MAKE) -C $(LIBFT_DIR) fclean
 	@$(MAKE) -C $(FT_PRINTF_DIR) fclean
 
diff --git a/src/checker/checker.c b/src/checker/checker.c
index 02c16b8..67295b8 100644
--- a/src/checker/checker.c
+++ b/src/checker/checker.c
@@ -6,7 +6,7 @@
 /*   By: lgaudin <lgaudin@student.42malaga.com>     +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/06/08 14:58:28 by lgaudin           #+#    #+#             */
-/*   Updated: 2023/06/08 16:31:38 by lgaudin          ###   ########.fr       */
+/*   Updated: 2023/06/08 18:12:26 by lgaudin          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -19,32 +19,32 @@
  * @param    stack_a
  * @param    stack_b
  */
-void parse_instruction(char *instruction, t_stack *stack_a, t_stack *stack_b)
+void	parse_instruction(char *instruction, t_stack *stack_a, t_stack *stack_b)
 {
-		if (!ft_strncmp(instruction, "rr\n", 3))
-			rr(stack_a, stack_b, 0);
-		else if (!ft_strncmp(instruction, "ra\n", 3))
-			ra(stack_a, 0);
-		else if (!ft_strncmp(instruction, "rb\n", 3))
-			rb(stack_b, 0);
-		else if (!ft_strncmp(instruction, "rrr\n", 4))
-			rrr(stack_a, stack_b, 0);
-		else if (!ft_strncmp(instruction, "rra\n", 4))
-			rra(stack_a, 0);
-		else if (!ft_strncmp(instruction, "rrb\n", 4))
-			rrb(stack_b, 0);
-		else if (!ft_strncmp(instruction, "pa\n", 3))
-			pa(stack_a, stack_b, 0);
-		else if (!ft_strncmp(instruction, "pb\n", 3))
-			pb(stack_a, stack_b, 0);
-		else if (!ft_strncmp(instruction, "sa\n", 3))
-			sa(stack_a, 0);
-		else if (!ft_strncmp(instruction, "sb\n", 3))
-			sb(stack_b, 0);
-		else if (!ft_strncmp(instruction, "ss\n", 3))
-			ss(stack_a, stack_b, 0);
-		else
-			free(instruction);
+	if (!ft_strncmp(instruction, "rr\n", 3))
+		rr(stack_a, stack_b, 0);
+	else if (!ft_strncmp(instruction, "ra\n", 3))
+		ra(stack_a, 0);
+	else if (!ft_strncmp(instruction, "rb\n", 3))
+		rb(stack_b, 0);
+	else if (!ft_strncmp(instruction, "rrr\n", 4))
+		rrr(stack_a, stack_b, 0);
+	else if (!ft_strncmp(instruction, "rra\n", 4))
+		rra(stack_a, 0);
+	else if (!ft_strncmp(instruction, "rrb\n", 4))
+		rrb(stack_b, 0);
+	else if (!ft_strncmp(instruction, "pa\n", 3))
+		pa(stack_a, stack_b, 0);
+	else if (!ft_strncmp(instruction, "pb\n", 3))
+		pb(stack_a, stack_b, 0);
+	else if (!ft_strncmp(instruction, "sa\n", 3))
+		sa(stack_a, 0);
+	else if (!ft_strncmp(instruction, "sb\n", 3))
+		sb(stack_b, 0);
+	else if (!ft_strncmp(instruction, "ss\n", 3))
+		ss(stack_a, stack_b, 0);
+	else
+		free(instruction);
 }
 
 /**
@@ -79,11 +79,11 @@ int	main(int argc, char *argv[])
 		arguments = ft_split(argv[1], ' ');
 	else
 		arguments = argv + 1;
-	a = populate_stack(arguments);
+	a = populate_stack(arguments, argc);
 	if (get_array_length(arguments) == 1 || already_sorted(a) == 1)
 		exit_without_error(a, NULL, arguments);
 	if (!a)
-		print_error(a, arguments);
+		print_error(a, arguments, argc);
 	b = initialise_stack();
 	get_instructions(a, b);
 	if (already_sorted(a) == 1 && b->top < 0)
diff --git a/src/stack/free.c b/src/stack/free.c
index 8c53dc4..45cc5be 100644
--- a/src/stack/free.c
+++ b/src/stack/free.c
@@ -6,7 +6,7 @@
 /*   By: lgaudin <lgaudin@student.42malaga.com>     +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/06/05 14:59:36 by lgaudin           #+#    #+#             */
-/*   Updated: 2023/06/08 16:57:29 by lgaudin          ###   ########.fr       */
+/*   Updated: 2023/06/08 18:10:21 by lgaudin          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -18,23 +18,21 @@
  *
  * @param    arguments The arguments to free.
  */
-void free_arguments(char **arguments)
+void	free_arguments(char **arguments)
 {
-    int i;
+	int	i;
 
-    if (!arguments)
-        return;
-
-    i = 0;
-    while (arguments[i])
-    {
-        free(arguments[i]);
-        i++;
-    }
+	if (!arguments)
+		return ;
+	i = 0;
+	while (arguments[i])
+	{
+		free(arguments[i]);
+		i++;
+	}
 	free(arguments);
 }
 
-
 /**
  * @brief    Free the stack.
  *