I think It work

Makefile

@@ -6,11 +6,11 @@
 #    By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2022/11/28 16:34:37 by cchauvet          #+#    #+#              #
-#    Updated: 2022/11/28 17:17:40 by cchauvet         ###   ########.fr        #
+#    Updated: 2022/11/29 16:23:42 by cchauvet         ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
-SRCS = ft_swap.c ft_putstr.c ft_p.c ft_sort.c ft_tablen.c ft_get_max.c ft_get_min.c main.c ft_atoi.c ft_bit_finder.c ft_radix.c ft_isnum.c ft_get_bit_max.c ft_r.c
+SRCS = ft_swap.c ft_putstr.c ft_p.c ft_sort.c ft_tablen.c ft_get_max.c ft_get_min.c main.c ft_atoi.c ft_bit_finder.c ft_radix.c ft_isnum.c ft_get_bit_max.c ft_r.c ft_is_sorted.c ft_get_bit_min.c
 
 OBJS = ${SRCS:.c=.o}
 

ft_bit_finder.c

@@ -6,18 +6,29 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/23 17:31:10 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/23 18:35:41 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/29 15:06:00 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "pushswap.h"
 
-int	ft_bit_finder(int big, int tofind)
+int	ft_bit_finder_left(int big, int tofind)
 {
 	int	i;
 
 	i = (int) sizeof(int) * 8 - 1;
-	while (i > 0 && ((big >> i) & 1) != tofind)
+	while (i != 0 && ((big >> i) & 1) != tofind)
 		i--;
 	return (sizeof(int) * 8 - i - 1);
 }
+
+
+int	ft_bit_finder_right(int big, int tofind)
+{
+	int	i;
+
+	i = 0;
+	while (i != ((int) sizeof(int) * 8 - 1) && ((big << i) & 1) != tofind)
+		i++;
+	return (i);
+}

ft_get_bit_max.c

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/28 16:22:14 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/28 17:56:32 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/29 15:10:54 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -23,7 +23,7 @@ int	ft_get_bit_max(int *tab)
 	i = 1;
 	while (tab[i] != -1)
 	{
-		if (ft_bit_finder(tab[i], 1) < ft_bit_finder(max, 1))
+		if (ft_bit_finder_left(tab[i], 1) > ft_bit_finder_left(max, 1))
 			max = tab[i];
 		i++;
 	}

ft_get_bit_min.c

@@ -0,0 +1,31 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_get_bit_min.c                                   :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/11/28 16:22:14 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/11/29 15:10:03 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "pushswap.h"
+
+int	ft_get_bit_min(int *tab)
+{
+	int	i;
+	int	min;
+
+	if (tab[0] == -1)
+		return (INT_MIN);
+	min = tab[0];
+	i = 1;
+	while (tab[i] != -1)
+	{
+		if (ft_bit_finder_right(tab[i], 1) < ft_bit_finder_right(min, 1))
+			min = tab[i];
+		i++;
+	}
+	return (min);
+}

ft_is_sorted.c

@@ -0,0 +1,34 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_is_sorted.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/11/29 14:41:08 by cchauvet          #+#    #+#             */
+/*   Updated: 2022/11/29 19:02:34 by cchauvet         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "pushswap.h"
+
+int	ft_is_sorted(int *in)
+{
+	unsigned int	*tab;
+	unsigned int	prev;
+	unsigned int	i;
+	int				shift;
+
+	shift = ft_bit_finder_right(ft_get_bit_min(in), 1) - 1;
+	tab = (unsigned int *) in;
+	prev = tab[0];
+	i = 1;
+	while (in[i] != -1)
+	{
+		if (tab[i] >> shift != (prev >> shift) - 1)
+			return (0);
+		prev = tab[i];
+		i++;
+	}
+	return (1);
+}

ft_p.c

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/09 16:38:34 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/28 18:15:41 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/29 18:13:28 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -28,12 +28,12 @@ void	ft_p(int *tab_src, int *tab_dst)
 
 void	ft_pb(int *tab_a, int *tab_b)
 {
-	ft_p(tab_b, tab_a);
+	ft_p(tab_a, tab_b);
-	ft_putstr("pb");
+	ft_putstr("pb\n");
 }
 
 void	ft_pa(int *tab_a, int *tab_b)
 {
-	ft_p(tab_a, tab_b);
+	ft_p(tab_b, tab_a);
-	ft_putstr("pa");
+	ft_putstr("pa\n");
 }

ft_putstr.c

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/08 18:24:45 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/08 18:26:33 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/29 14:38:32 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 

ft_r.c

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/28 16:50:03 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/28 17:13:21 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/29 14:39:23 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -26,12 +26,12 @@ static void	ft_r(int *tab)
 
 void	ft_ra(int *tab)
 {
-	ft_putstr("ra");
 	ft_r(tab);
+	ft_putstr("ra\n");
 }
 
 void	ft_rb(int *tab)
 {
-	ft_putstr("rb");
 	ft_r(tab);
+	ft_putstr("rb\n");
 }

ft_radix.c

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/15 18:16:31 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/28 16:29:46 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/30 13:19:13 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -14,20 +14,22 @@
 
 void	ft_radix_sort(int *tab_a, int *tab_b)
 {
-	int		i;
+	int	i;
 
-	while (ft_bit_finder(ft_get_bit_max(tab_a), 1) != (int) sizeof(int) * 8 - 1)
+	while (!ft_is_sorted(tab_a))
 	{
-		i = 0;
+		i = ft_tablen(tab_a);
-		while (i < ft_tablen(tab_a))
+		while (--i >= 0 && !ft_is_sorted(tab_a))
 		{
-			if (((tab_a[i] >> (sizeof(int) * 8 - 1)) & 1) == 0)
+			if ((tab_a[i] >> (sizeof(int) * 8 -1) & 1) == 0)
-				ft_ra(tab_a);
+				ft_pb(tab_a, tab_b);
 			else
-				ft_pa(tab_a, tab_b);
+				ft_ra(tab_a);
-			i++;
 		}
-		while (0 < ft_tablen(tab_b))
+		while (tab_b[0] != -1)
-			ft_pb(tab_b, tab_a);
+			ft_pa(tab_a, tab_b);
+		i = ft_tablen(tab_a);
+		while (--i >= 0 && !ft_is_sorted(tab_a))
+			tab_a[i] = tab_a[i] << 1;
 	}
 }

ft_sort.c

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/08 19:47:56 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/28 18:08:15 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/29 16:19:48 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -25,7 +25,7 @@ static int	*ft_values_simplifier(int *tab, int size)
 		free(tab);
 		return (NULL);
 	}
-	shift = ft_bit_finder(size, 1);
+	shift = ft_bit_finder_left(size, 1);
 	i = 0;
 	while (i < size)
 	{

pushswap.h

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/08 18:19:44 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/28 16:30:39 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/29 16:22:26 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -27,9 +27,12 @@ int		ft_get_min_index(int *tab, int len);
 int		ft_get_min_index(int *tab, int len);
 
 int		ft_tablen(int *tab);
+int		ft_is_sorted(int *in);
 
-int		ft_bit_finder(int big, int tofind);
+int		ft_bit_finder_left(int big, int tofind);
+int		ft_bit_finder_right(int big, int tofind);
 int		ft_get_bit_max(int *tab);
+int		ft_get_bit_min(int *tab);
 void	ft_radix_sort(int *tab_a, int *tab_b);
 
 void	ft_swap(int *a, int *b);

test.c

@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/11/23 16:43:32 by cchauvet          #+#    #+#             */
-/*   Updated: 2022/11/28 17:15:24 by cchauvet         ###   ########.fr       */
+/*   Updated: 2022/11/29 17:11:41 by cchauvet         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -15,16 +15,38 @@
 
 int main()
 {
-	int	tab[] = {1,2,3,4,-1};
+	int tab_a[5] = {0,1,2,3,-1};
+	int tab_b[5] = {-1};
 	int	i;
 
-	i = -1;
+	i = 0;
-	while (tab[++i] != -1)
+	printf("a: ");
-		printf("%d, ", tab[i]);
+	while (tab_a[i] != -1)
+	{
+		printf("%d, ", tab_a[i]);
+		i++;
+	}
+	printf("\nb: ");
+	i = 0;
+	while (tab_b[i] != -1)
+	{
+		printf("%d, ", tab_b[i]);
+		i++;
+	}
 	printf("\n");
-	ft_ra(tab);
+	ft_pa(tab_a, tab_b);
-	printf("\n");
+	i = 0;
-	i = -1;
+	printf("a: ");
-	while (tab[++i] != -1)
+	while (tab_a[i] != -1)
-		printf("%d, ", tab[i]);
+	{
+		printf("%d, ", tab_a[i]);
+		i++;
+	}
+	printf("\nb: ");
+	i = 0;
+	while (tab_b[i] != -1)
+	{
+		printf("%d, ", tab_b[i]);
+		i++;
+	}
 }