diff --git a/README.md b/README.md
index 844c4c2..e161e52 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,10 @@ source des comparaisons ci-dessous : [https://www.youtube.com/watch?v=xoR-1KwQh2
          10    4 875 249    56 784 400  Bogo Sort
 
 
+---
+
+autre source de comparaison : [https://www.toptal.com/developers/sorting-algorithms](https://www.toptal.com/developers/sorting-algorithms)
+
 ---
 
 ## pour utiliser l'algorithme de tris de ce programme dans votre propre programme, il faut :
diff --git a/builds/algo.o b/builds/algo.o
index bb713ba..5195668 100644
Binary files a/builds/algo.o and b/builds/algo.o differ
diff --git a/builds/push_swap.o b/builds/push_swap.o
index aeea254..4dc54fc 100644
Binary files a/builds/push_swap.o and b/builds/push_swap.o differ
diff --git a/compare_pushswap.sh b/compare.sh
similarity index 100%
rename from compare_pushswap.sh
rename to compare.sh
diff --git a/push_swap b/push_swap
index 3bc14bd..edb7244 100755
Binary files a/push_swap and b/push_swap differ
diff --git a/srcs/algo.c b/srcs/algo.c
index f0411b6..866cb21 100644
--- a/srcs/algo.c
+++ b/srcs/algo.c
@@ -1,7 +1,61 @@
 #include "push_swap.h"
 
+/*
+** the nb compared to i in the while loop is the number
+** of elements of the list that are competiting
+*/
+int	match(t_stack **a)
+{
+	t_stack	*tmp;
+	int		smaller;
+	int		i;
+	int		j;
+
+	tmp = *a;
+	smaller = tmp->n;
+	i = 1;
+	j = 0;
+	while (i < 4)
+	{
+		tmp = tmp->next;
+		if (tmp->n < smaller)
+		{
+			smaller = tmp->n;
+			j = i;
+		}
+		i++;
+	}
+	ft_printf("%i [%i]\n", smaller, j);
+	return (j);
+}
+
+void	nb_to_top(t_stack **a, t_list *solution, int i)
+{
+	int	n;
+
+	if (!i)
+		return ;
+	n = i;
+	while (--n)
+		ra(a, &solution);
+	n = i;
+	sa(a, &solution);
+	while (--n)
+	{
+		rra(a, &solution);
+		sa(a, &solution);
+	}
+}
+
 void	hugo_sort(t_stack **a, t_stack **b, t_list *solution)
 {
+	int	i;
+
+	i = match(a);
+	nb_to_top(a, solution, i);
+	(void)b;
+}
+/*
 	sa(a, &solution);
 	pb(b, a, &solution);
 	pb(b, a, &solution);
@@ -18,4 +72,4 @@ void	hugo_sort(t_stack **a, t_stack **b, t_list *solution)
 	ra(a, &solution);
 	rb(b, &solution);
 	rr(a, b, &solution);
-}
+*/
diff --git a/srcs/push_swap.c b/srcs/push_swap.c
index 7203919..70cffa5 100644
--- a/srcs/push_swap.c
+++ b/srcs/push_swap.c
@@ -47,8 +47,8 @@ t_list	*launch_algo(t_stack **a, t_stack **b, int flag)
 	ft_lstadd_back(&solution, ft_lstnew(b));
 	if (flag)
 		fill_solution(solution, "start");
-	// hugo_sort(a, b, solution);
-	bubble_sort(a, b, solution);
+	hugo_sort(a, b, solution);
+	// bubble_sort(a, b, solution);
 	return (solution);
 }