From 79ad11afe316582a078caba074636d639e509dbf Mon Sep 17 00:00:00 2001
From: Maryna Kravtsova <mk757ye@omega.tuke.sk>
Date: Mon, 2 Nov 2020 14:50:13 +0100
Subject: [PATCH] add

---
 cv5/a_train.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cv5/a_train.c b/cv5/a_train.c
index a2d0d02..69cf5b4 100644
--- a/cv5/a_train.c
+++ b/cv5/a_train.c
@@ -46,6 +46,7 @@ void cancel_train(struct car* first) {
     else if(first->next != NULL){
        struct car* help = first->next;
        free(first);
+       first->next = NULL;
        cancel_train(help);
        //first->next = NULL;
     }