diff --git a/bonus/Makefile b/bonus/Makefile
deleted file mode 100644
index e69de29..0000000
diff --git a/bonus/check/check_error.c b/bonus/check/check_error.c
deleted file mode 100644
index e69de29..0000000
diff --git a/bonus/end_check/end_check.c b/bonus/end_check/end_check.c
deleted file mode 100644
index e69de29..0000000
diff --git a/bonus/main.c b/bonus/main.c
deleted file mode 100644
index e69de29..0000000
diff --git a/bonus/parsing/parsing.c b/bonus/parsing/parsing.c
deleted file mode 100644
index e69de29..0000000
diff --git a/bonus/utils/push.c b/bonus/utils/push.c
deleted file mode 100644
index 2bca761..0000000
--- a/bonus/utils/push.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   push.c                                             :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: mteriier <mteriier@student.42lyon.fr>      +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2025/12/08 15:09:40 by mteriier          #+#    #+#             */
-/*   Updated: 2026/01/08 13:57:56 by dgaillet         ###   ########lyon.fr   */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "push_swap.h"
-#include <stdlib.h>
-#include <unistd.h>
-
-void	pa(t_stacks *stacks)
-{
-	t_stack	*b_push;
-
-	if (!stacks || !stacks->b)
-		return ;
-	b_push = stacks->b;
-	if (stacks->b->next == stacks->b)
-		stacks->b = NULL;
-	else
-	{
-		stacks->b->next->previous = stacks->b->previous;
-		stacks->b->previous->next = stacks->b->next;
-		stacks->b = stacks->b->next;
-	}
-	stack_add_front(&(stacks->a), b_push);
-}
-
-void	pb(t_stacks *stacks)
-{
-	t_stack	*a_push;
-
-	if (!stacks || !stacks->a)
-		return ;
-	a_push = stacks->a;
-	if (stacks->a->next == stacks->a)
-		stacks->a = NULL;
-	else
-	{
-		stacks->a->next->previous = stacks->a->previous;
-		stacks->a->previous->next = stacks->a->next;
-		stacks->a = stacks->a->next;
-	}
-	stack_add_front(&(stacks->b), a_push);
-}
diff --git a/bonus/utils/rev_rotate.c b/bonus/utils/rev_rotate.c
deleted file mode 100644
index 7e1ccce..0000000
--- a/bonus/utils/rev_rotate.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   rev_rotate.c                                       :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2025/12/08 14:43:45 by dgaillet          #+#    #+#             */
-/*   Updated: 2026/01/08 13:57:27 by dgaillet         ###   ########lyon.fr   */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "push_swap.h"
-#include <unistd.h>
-
-void	rra(t_stacks *stacks)
-{
-	if (stacks && stacks->a && stacks->a->previous)
-		stacks->a = stacks->a->previous;
-}
-
-void	rrb(t_stacks *stacks)
-{
-	if (stacks && stacks->b && stacks->b->previous)
-		stacks->b = stacks->b->previous;
-}
-
-void	rrr(t_stacks *stacks)
-{
-	if (stacks && stacks->b && stacks->b->previous)
-		stacks->b = stacks->b->previous;
-	if (stacks && stacks->a && stacks->a->previous)
-		stacks->a = stacks->a->previous;
-}
diff --git a/bonus/utils/rotate.c b/bonus/utils/rotate.c
deleted file mode 100644
index fee4efa..0000000
--- a/bonus/utils/rotate.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   rotate.c                                           :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2025/12/08 14:32:10 by dgaillet          #+#    #+#             */
-/*   Updated: 2026/01/08 13:57:47 by dgaillet         ###   ########lyon.fr   */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "push_swap.h"
-#include <unistd.h>
-
-void	ra(t_stacks *stacks)
-{
-	if (stacks && stacks->a && stacks->a->next)
-		stacks->a = stacks->a->next;
-}
-
-void	rb(t_stacks *stacks)
-{
-	if (stacks && stacks->b && stacks->b->next)
-		stacks->b = stacks->b->next;
-}
-
-void	rr(t_stacks *stacks)
-{
-	if (stacks && stacks->a && stacks->a->next)
-		stacks->a = stacks->a->next;
-	if (stacks && stacks->b && stacks->b->next)
-		stacks->b = stacks->b->next;
-}
diff --git a/bonus/utils/stack_add.c b/bonus/utils/stack_add.c
deleted file mode 100644
index 5effe0f..0000000
--- a/bonus/utils/stack_add.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   stack_add.c                                        :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2025/12/08 15:52:40 by dgaillet          #+#    #+#             */
-/*   Updated: 2025/12/12 11:39:09 by dgaillet         ###   ########lyon.fr   */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "push_swap.h"
-#include <stdlib.h>
-
-t_stack	*new_stack(int value)
-{
-	t_stack	*new;
-
-	new = malloc(sizeof(t_stack));
-	if (!new)
-		return (NULL);
-	new->value = value;
-	new->next = NULL;
-	new->previous = NULL;
-	return (new);
-}
-
-void	stack_add_back(t_stack **stack, t_stack *new)
-{
-	if (!stack || !new)
-		return ;
-	if (*stack == NULL)
-	{
-		(*stack) = new;
-		new->next = new;
-		new->previous = new;
-	}
-	else
-	{
-		(*stack)->previous->next = new;
-		new->previous = (*stack)->previous;
-		(*stack)->previous = new;
-		new->next = *stack;
-	}
-}
-
-void	stack_add_front(t_stack **stack, t_stack *new)
-{
-	if (!stack || !new)
-		return ;
-	stack_add_back(stack, new);
-	*stack = new;
-}
diff --git a/bonus/utils/stack_remove.c b/bonus/utils/stack_remove.c
deleted file mode 100644
index cf19002..0000000
--- a/bonus/utils/stack_remove.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   stack_remove.c                                     :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2025/12/08 16:05:27 by dgaillet          #+#    #+#             */
-/*   Updated: 2025/12/12 11:39:02 by dgaillet         ###   ########lyon.fr   */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "push_swap.h"
-#include <stdlib.h>
-
-void	stack_clear_all(t_stack *stack, t_stack *first)
-{
-	if (!stack)
-		return ;
-	if (stack->next != first)
-		stack_clear_all(stack->next, first);
-	free(stack);
-}
-
-void	free_all(t_stacks *stacks)
-{
-	if (stacks->a)
-		stack_clear_all(stacks->a, stacks->a);
-	if (stacks->b)
-		stack_clear_all(stacks->b, stacks->b);
-	free(stacks);
-}
diff --git a/bonus/utils/stacks_len.c b/bonus/utils/stacks_len.c
deleted file mode 100644
index 6aa44f9..0000000
--- a/bonus/utils/stacks_len.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   stacks_len.c                                       :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2025/12/09 13:11:50 by dgaillet          #+#    #+#             */
-/*   Updated: 2025/12/09 13:19:21 by dgaillet         ###   ########lyon.fr   */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "push_swap.h"
-
-int	stack_a_len(t_stacks *stacks)
-{
-	t_stack	*first;
-	t_stack	*a_stack;
-	int		len;
-
-	a_stack = stacks->a;
-	first = a_stack;
-	if (!a_stack)
-		return (0);
-	len = 1;
-	while (a_stack->next != first)
-	{
-		a_stack = a_stack->next;
-		len++;
-	}
-	return (len);
-}
-
-int	stack_b_len(t_stacks *stacks)
-{
-	t_stack	*first;
-	t_stack	*b_stack;
-	int		len;
-
-	b_stack = stacks->b;
-	first = b_stack;
-	if (!b_stack)
-		return (0);
-	len = 1;
-	while (b_stack->next != first)
-	{
-		b_stack = b_stack->next;
-		len++;
-	}
-	return (len);
-}
-
-int	highest_stack_len(t_stacks *stacks)
-{
-	int	a_len;
-	int	b_len;
-
-	a_len = stack_a_len(stacks);
-	b_len = stack_b_len(stacks);
-	if (a_len > b_len)
-		return (a_len);
-	return (b_len);
-}
diff --git a/bonus/utils/swap.c b/bonus/utils/swap.c
deleted file mode 100644
index 2d2588b..0000000
--- a/bonus/utils/swap.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   swap.c                                             :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: mteriier <mteriier@student.42lyon.fr>      +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2025/12/08 14:48:44 by mteriier          #+#    #+#             */
-/*   Updated: 2026/01/08 13:58:13 by dgaillet         ###   ########lyon.fr   */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "push_swap.h"
-#include <unistd.h>
-
-void	sa(t_stacks *stacks)
-{
-	t_stack	*a;
-	int		stock;
-
-	if (!stacks || !stacks->a || !stacks->a->next)
-		return ;
-	a = stacks->a;
-	stock = a->value;
-	a->value = a->next->value;
-	a->next->value = stock;
-}
-
-void	sb(t_stacks *stacks)
-{
-	t_stack	*b;
-	int		stock;
-
-	if (!stacks || !stacks->b || !stacks->b->next)
-		return ;
-	b = stacks->b;
-	stock = b->value;
-	b->value = b->next->value;
-	b->next->value = stock;
-}
-
-void	ss(t_stacks *stacks)
-{
-	t_stack	*b;
-	t_stack	*a;
-	int		stock;
-
-	if (!stacks)
-		return ;
-	if (stacks->b && stacks->b->next)
-	{
-		b = stacks->b;
-		stock = b->value;
-		b->value = b->next->value;
-		b->next->value = stock;
-	}
-	if (stacks->a && stacks->a->next)
-	{
-		a = stacks->a;
-		stock = a->value;
-		a->value = a->next->value;
-		a->next->value = stock;
-	}
-}
diff --git a/checker/check_error.c b/checker/check_error.c
index fbdd341..c936923 100644
--- a/checker/check_error.c
+++ b/checker/check_error.c
@@ -18,7 +18,7 @@ int	verif_is_number(char **tab)
 	int	len;
 
 	len = len_split(tab);
-	if (tab[len - 1][0] == '-')
+	if (tab[len - 1][0] == '-' && !ft_isdigit(tab[len - 1][1]))
 		return (0);
 	return (1);
 }
diff --git a/checker/verif_overflow.c b/checker/verif_overflow.c
index 173680d..e0944b6 100644
--- a/checker/verif_overflow.c
+++ b/checker/verif_overflow.c
@@ -28,7 +28,7 @@ static int	verif_atoi(const char *nptr)
 	i = 0;
 	tmp = 0;
 	before = 0;
-	if (ft_strncmp("-2147483648", nptr, 15))
+	if (ft_strncmp(nptr, "-2147483648", 15))
 		return (1);
 	while ((nptr[i] >= 9 && nptr[i] <= 13) || nptr[i] == ' ')
 		i++;