diff --git a/srcs/push_ants.c b/srcs/push_ants.c
new file mode 100644
index 0000000..64ff3d0
--- /dev/null
+++ b/srcs/push_ants.c
@@ -0,0 +1,120 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   push_ants.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/04/06 11:37:56 by tmaze             #+#    #+#             */
+/*   Updated: 2019/04/08 13:40:41 by tmaze            ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "lem_in.h"
+
+t_ants	*add_ant(t_ants **ants, int *nb_ant, int nb_path, t_ind **paths)
+{
+	t_ants	*new;
+	t_ants	*it;
+
+	if ((new = (t_ants*)ft_memalloc(sizeof(t_ants))) != NULL)
+	{
+		new->nb_ant = *nb_ant++;
+		new->nb_path = nb_path;
+		new->nb_node = paths[nb_path]->index;
+		new->end = 0;
+		new->next = NULL;
+		if (*ants == NULL)
+			*ants = new;
+		else
+		{
+			it = *ants;
+			while (it->next)
+				it = it->next;
+			it->next = new;
+		}
+	}
+	return (new);
+}
+
+void	del_ants(t_ants **ants)
+{
+	t_ants	*tmp;
+
+	while (*ants)
+	{
+		tmp = *ants;
+		*ants = (*ants)->next;
+		ft_memdel((void**)&tmp);
+	}
+}
+
+t_node	*get_node(t_lmdata *data, int index)
+{
+	t_node	*it;
+
+	it = data->nodes_data;
+	while (it && it->ind != index)
+		it = it->next;
+	return (it);
+}
+
+void	push_ants(t_lmdata *data, t_ind **paths, int nb_paths, int nb_ants)
+{
+	t_ants	*ants;
+	t_ants	*it;
+	t_ants	*tmp;
+	int		i;
+	int		ant_c;
+	char	has_start[nb_paths];
+
+	ant_c = 1;
+	ft_bzero(has_start, nb_paths);
+	if (add_ant(&ants, &ant_c, 0, paths) == NULL)
+		return ;
+	has_start[0] = 1;
+	while (ants)
+	{
+		i = 0;
+		while (i < nb_paths)
+			if (ant_c <= nb_ants && !has_start[i])
+			{
+				if (add_ant(&ants, &ant_c, i, paths) == NULL)
+				{
+					del_ants(&ants);
+					return ;
+				}
+				has_start[i] = 1;
+				i++;
+			}
+		it = ants;
+		while (it)
+		{
+			ft_printf("L%d-%s", it->nb_ant, get_node(data, it->nb_node)->name);
+			if (get_node(data, it->nb_node)->next)
+				it->nb_node = get_node(data, it->nb_node)->next->ind;
+			else
+				it->end = 1;
+			if (it->next)
+				ft_putchar(' ');
+			else
+				ft_putchar('\n');
+			has_start[it->nb_path] = 0;
+			it = it->next;
+		}
+		it = ants;
+		while (ants && ants->end)
+		{
+			it = ants;
+			ants = ants->next;
+			ft_memdel((void**)&it);
+		}
+		it = ants;
+		while (it->next && it->next->end)
+		{
+			tmp = it->next;
+			it->next = tmp->next;
+			ft_memdel((void**)&tmp);
+		}
+	}
+}