diff --git a/algorithms/medium_utils/sort_utils.c b/algorithms/medium_utils/sort_utils.c
new file mode 100644
index 0000000..91b1ab1
--- /dev/null
+++ b/algorithms/medium_utils/sort_utils.c
@@ -0,0 +1,93 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   sort_utils.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: mteriier <mteriier@student.42lyon.fr>      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/01/05 14:11:49 by mteriier          #+#    #+#             */
+/*   Updated: 2026/01/05 14:11:52 by mteriier         ###   ########lyon.fr   */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "push_swap.h"
+
+void	push_range_to_b(t_stacks *piles, t_tab *one_preset, int range)
+{
+	t_stack	*a;
+	t_stack	*b;
+
+	a = piles->a;
+	b = piles->b;
+	while (one_preset->nb_in > 0)
+	{
+		if (wich_path(piles, one_preset->max_range, range, 'a'))
+		{
+			while (!in_range(a->value))
+				ra(piles);
+		}
+		else
+			while (!in_range(a->value))
+				rra(piles);
+		pb(piles);		
+	}
+}
+
+int	sort_path(t_stacks *piles, int value)
+{
+	int start_path;
+	int	end_path;
+
+	start_path = number_move_reverse(piles, value, 's');
+	end_path = number_move_reverse(piles, value, 'e');
+	if (start_path < end_path)
+		return (1);
+	return (0);
+}
+
+int	number_move_reverse(t_stacks *piles, int value, char start_end)
+{
+	int		i;
+	t_stack	*tmp;
+
+	i = 0;
+	tmp = piles->b;
+	if (start_end  == 's')
+	{
+		while(tmp->value > value)
+		{
+			tmp = tmp->next;
+			i++;
+		}
+	}
+	else
+	{
+		tmp = tmp->previous;
+		while(tmp->value < value)
+		{
+			tmp = tmp->previous;
+			i++;
+		}
+	}
+	return (i);
+}
+
+void	sort_little_pile(t_stacks *piles)
+{
+	int	i;
+
+	i = 0;
+	if (!piles->b)
+	{
+		pb(piles);
+		return ;
+	}
+	if (piles->b->previous->value < piles->a->value)
+	{
+		pb(piles);
+		rb(piles);
+		return ;
+	}
+	if (sort_path(piles, piles->a->value))
+		//you stop here
+}