diff --git a/includes/lem_in.h b/includes/lem_in.h
index 9c6af18..f1b3ddb 100644
--- a/includes/lem_in.h
+++ b/includes/lem_in.h
@@ -6,7 +6,7 @@
 /*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/03/23 17:31:19 by tmaze             #+#    #+#             */
-/*   Updated: 2019/04/11 10:50:04 by tmaze            ###   ########.fr       */
+/*   Updated: 2019/04/11 17:31:09 by tmaze            ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -66,6 +66,7 @@ typedef struct		s_syntax
 	int				e_error;
 	int				v_error;
 	int				l_error;
+	int				gr_status;
 	int				s_vert;
 	int				e_vert;
 	int				e_cmd;
@@ -97,6 +98,7 @@ int					lm_validate(t_syntax *synt, t_lmdata *lmdata);
 int					lm_parser(t_syntax *synt, t_lmdata *ldata
 							, t_holder *holder);
 int					lm_check_room_before(char **tab, t_syntax *synt);
+void				lm_clear_unv(t_holder *holder);
 int					lm_add_vertex(t_lmdata *ldata, char *raw, char flag
 							, t_syntax *synt);
 int					lm_ext_conn(t_holder *holder, t_lmdata *data
diff --git a/srcs/lm_graph_utils.c b/srcs/lm_graph_utils.c
index 832f819..f0ea7ad 100644
--- a/srcs/lm_graph_utils.c
+++ b/srcs/lm_graph_utils.c
@@ -6,13 +6,29 @@
 /*   By: mndhlovu <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2019/03/29 07:17:06 by mndhlovu          #+#    #+#             */
-/*   Updated: 2019/04/09 18:18:59 by tmaze            ###   ########.fr       */
+/*   Updated: 2019/04/11 20:34:58 by tmaze            ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "lem_in.h"
 
-int							lm_adj_parser(t_lmdata *lmdata, t_holder *holder)
+static int	is_link_in(t_lmdata *data, int src, int dest)
+{
+	t_ind	*it;
+	if (src < data->nb_nodes)
+	{
+		it = data->adj[src];
+		while (it)
+		{
+			if (it->index == dest)
+				return (1);
+			it = it->next;
+		}
+	}
+	return (0);
+}
+
+int			lm_adj_parser(t_lmdata *lmdata, t_holder *holder)
 {
 	t_temp					*data;
 
@@ -23,7 +39,8 @@ int							lm_adj_parser(t_lmdata *lmdata, t_holder *holder)
 		{
 			while (data)
 			{
-				lst_indadd_link(lmdata, data->src_ind, data->dest_ind);
+				if (!is_link_in(lmdata, data->src_ind, data->dest_ind))
+					lst_indadd_link(lmdata, data->src_ind, data->dest_ind);
 				data = data->next;
 			}
 			return (1);