diff --git a/builds/algo.o b/builds/algo.o
index b06c8b1..8011c09 100644
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diff --git a/builds/algo_bubble_sort.o b/builds/algo_bubble_sort.o
index d22287c..0118619 100644
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diff --git a/builds/minisort.o b/builds/minisort.o
index 4febd29..77a35e4 100644
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diff --git a/builds/minisort_2ways_bubble_sort.o b/builds/minisort_2ways_bubble_sort.o
index 6e11305..c0f9154 100644
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diff --git a/builds/minisort_by_rank.o b/builds/minisort_by_rank.o
index cbe2305..73164d2 100644
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diff --git a/builds/print.o b/builds/print.o
index e9e2f52..fa902f2 100644
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diff --git a/builds/push.o b/builds/push.o
index 4681227..42eb862 100644
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diff --git a/builds/push_swap.o b/builds/push_swap.o
index 30d043e..16c3d97 100644
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diff --git a/builds/reverse_rotate.o b/builds/reverse_rotate.o
index 2184f54..74d99f8 100644
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diff --git a/builds/rotate.o b/builds/rotate.o
index 805b948..a636273 100644
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diff --git a/builds/sort_utils.o b/builds/sort_utils.o
index b072987..6a57dae 100644
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diff --git a/builds/special_sorts_3_5.o b/builds/special_sorts_3_5.o
index 9aa3774..b9422cb 100644
Binary files a/builds/special_sorts_3_5.o and b/builds/special_sorts_3_5.o differ
diff --git a/builds/stop.o b/builds/stop.o
index 908a2e5..8f27a04 100644
Binary files a/builds/stop.o and b/builds/stop.o differ
diff --git a/builds/swap.o b/builds/swap.o
index 6b6af83..8894691 100644
Binary files a/builds/swap.o and b/builds/swap.o differ
diff --git a/includes/push_swap.h b/includes/push_swap.h
index 1dd5765..d2b993b 100644
--- a/includes/push_swap.h
+++ b/includes/push_swap.h
@@ -5,6 +5,8 @@
 # include <unistd.h>	// read(), write(), sleep()
 # include <stdlib.h>	// malloc(), free(), exit(), atoi()
 
+# define INT_MAX 2147483647
+# define INT_MIN -2147483648
 
 typedef struct		s_stack
 {
@@ -32,7 +34,7 @@ t_list		*launch_algo(t_stack **a, t_stack **b, int i);
 void		print_test(t_list *lst, char *s);
 void		ps_usage(void);
 void		ps_error(int i);
-void		ps_stop(t_stack *stack, t_list *lst, int i);
+void		ps_stop(t_list *lst, int i);
 
 /*
 ** algo.c // sort.c
@@ -42,7 +44,7 @@ int			find_pivot(t_stack *list, int size);
 int			divide_a(t_stack **a, t_stack **b, t_list *solution);
 int			divide_b(t_stack **a, t_stack **b, t_list *solution);
 void		send_sublist_to_a(t_stack **a, t_stack **b, t_list *solution);
-void		hugo_sort(t_stack **a, t_stack **b, t_list *lst);
+void		hugo_sort(t_stack **a, t_stack **b, t_list *solution);
 
 /*
 ** sort_recursif.c
@@ -95,28 +97,28 @@ void		print_result(t_list *lst, int i);
 /*
 ** swap
 */
-t_list		*sa(t_stack **a, t_list **lst);
-t_list		*sb(t_stack **b, t_list **lst);
-t_list		*ss(t_stack **a, t_stack **b, t_list **lst);
+t_list		*sa(t_stack **a, t_list **solution);
+t_list		*sb(t_stack **b, t_list **solution);
+t_list		*ss(t_stack **a, t_stack **b, t_list **solution);
 
 /*
 ** push
 */
-t_list		*pa(t_stack **dst, t_stack **src, t_list **lst);
-t_list		*pb(t_stack **dst, t_stack **src, t_list **lst);
+t_list		*pa(t_stack **a, t_stack **b, t_list **solution);
+t_list		*pb(t_stack **b, t_stack **a, t_list **solution);
 
 /*
 ** rotate
 */
-t_list		*ra(t_stack **stack, t_list **lst);
-t_list		*rb(t_stack **stack, t_list **lst);
-t_list		*rr(t_stack **a, t_stack **b, t_list **lst);
+t_list		*ra(t_stack **a, t_list **solution);
+t_list		*rb(t_stack **b, t_list **solution);
+t_list		*rr(t_stack **a, t_stack **b, t_list **solution);
 
 /*
 ** reverse rotate
 */
-t_list		*rra(t_stack **stack, t_list **lst);
-t_list		*rrb(t_stack **stack, t_list **lst);
-t_list		*rrr(t_stack **a, t_stack **b, t_list **lst);
+t_list		*rra(t_stack **a, t_list **solution);
+t_list		*rrb(t_stack **b, t_list **solution);
+t_list		*rrr(t_stack **a, t_stack **b, t_list **solution);
 
 #endif
diff --git a/push_swap b/push_swap
index c03bef8..a01a326 100755
Binary files a/push_swap and b/push_swap differ
diff --git a/srcs/algo.c b/srcs/algo.c
index b59bcac..c425bee 100644
--- a/srcs/algo.c
+++ b/srcs/algo.c
@@ -102,7 +102,7 @@ void	send_sublist_to_a(t_stack **a, t_stack **b, t_list *solution)
 	mark_step(solution, "send_sublist_to_a");
 }
 
-void	recursif_sort(t_stack **a, t_stack **b, t_list *solution)
+void	hugo_sort(t_stack **a, t_stack **b, t_list *solution)
 {
 	if (sublist_size(*a) > 4)
 		divide_a(a, b, solution);
@@ -119,16 +119,6 @@ void	recursif_sort(t_stack **a, t_stack **b, t_list *solution)
 		else
 			return ;
 	}
-	recursif_sort(a, b, solution);
-}
-
-void	hugo_sort(t_stack **a, t_stack **b, t_list *solution)
-{
-	if (sublist_size(*a) <= 3)
-		special_sort_3(a, solution);
-	else if (sublist_size(*a) <= 5)
-		special_sort_5(a, b, solution);
-	else
-		recursif_sort(a, b, solution);
+	hugo_sort(a, b, solution);
 }
 
diff --git a/srcs/push_swap.c b/srcs/push_swap.c
index 79d8810..e1d41e0 100644
--- a/srcs/push_swap.c
+++ b/srcs/push_swap.c
@@ -4,7 +4,7 @@
 void	is_valid(int ac, char **av)
 {
 	if (ac < 2)
-		ps_stop(NULL, NULL, 1);
+		ps_stop(NULL, 1);
 	(void)av;
 }
 
@@ -28,14 +28,23 @@ int	check_flag(int *ac, char ***av)
 t_stack	*fill_stack(t_stack *list, char *nb)
 {
 	t_stack	*new;
+	long	nbl;
 
 	new = ft_calloc(1, sizeof(t_stack));
 	if (!new)
-		ps_stop(NULL, NULL, 2);
-	new->n = ft_atoi(nb);
+		ps_stop((t_list *)list, 2);
+
+/*
+	if (ft_isnumber(nb) == 0)
+		ps_stop((t_list *)list, 2);
+	nbl = ft_atol(nb);
+	if (nbl < INT_MIN || nbl > INT_MAX)
+		ps_stop((t_list *)list, 2);
+	new->n = nbl;
 	new->limit = 0;
 	new->next = list;
 	list = new;
+*/
 	return (list);
 }
 
@@ -76,8 +85,13 @@ t_list	*launch_algo(t_stack **a, t_stack **b, int flag)
 		fill_solution(solution, "start");
 		mark_step(solution, "start");
 	}
-	hugo_sort(a, b, solution);
-//	bubble_sort(a, b, solution);
+	if (sublist_size(*a) <= 3)
+		special_sort_3(a, solution);
+	else if (sublist_size(*a) <= 5)
+		special_sort_5(a, b, solution);
+	else
+		hugo_sort(a, b, solution);
+//	bubble_sort_luke(a, b, solution);
 	return (solution);
 }
 
@@ -94,6 +108,6 @@ int	main(int ac, char **av)
 	b = NULL;
 	solution = launch_algo(&a, &b, flag);
 	print_result(solution, flag);
-	ps_stop(NULL, solution, 0);
+	ps_stop(solution, 0);
 	return (0);
 }
diff --git a/srcs/stop.c b/srcs/stop.c
index e8dafe2..bc3e803 100644
--- a/srcs/stop.c
+++ b/srcs/stop.c
@@ -1,28 +1,27 @@
 #include "push_swap.h"
 
-void	ps_usage(void)
-{
-	ft_printf("usage :\n");
-	ft_printf("launch executable : ./push_swap [flag -p] nb nb nb nb nb ...\n");
-}
-
 void	ps_error(int err)
 {
 	if (err == 1)
-		ps_usage();
+		ft_printf("usage :\nlaunch executable : ./push_swap [flag -p] nb nb nb nb nb ...\n");
 	if (err == 2)
-		ft_printf("error\n");
+		ft_putstr_fd("Error\n", 2);
 	exit(0);
 }
 
-void	ps_stop(t_stack *stack, t_list *lst, int err)
+/*
+** if err < 0, the parameter list is just a t_stack *list
+** if err = 0, the list are freed but the program doesn't stop
+** if err > 0, a message is printed and the program stop
+*/
+void	ps_stop(t_list *lst, int err)
 {
 	t_stack	**a;
 	t_stack	**b;
 
-	if (stack)
-		ft_lstclear((t_list **)&stack, NULL);
-	if (lst)
+	if (err < 0)
+		ft_lstclear(&lst, NULL);
+	else if (lst)
 	{
 		a = lst->content;
 		b = lst->next->content;
@@ -32,8 +31,6 @@ void	ps_stop(t_stack *stack, t_list *lst, int err)
 		lst->next->content = NULL;
 		ft_lstclear(&lst, free);
 	}
-	if (err < 0)
-		return ;
-	else if (err > 0)
+	if (err > 0)
 		ps_error(err);
 }