delete

cv5/a_train.c

@@ -32,27 +32,28 @@ void print_train(struct car* first) {
 }
 
 void cancel_train(struct car* first) {   
-    struct car* this;
+    //struct car* this;
     if(first == NULL){
         exit(0);
     }
-    else if(first->next == NULL){
+    if(first->next == NULL){
        //this = first;
        //first = first->next;
        free(first);
-       first = NULL;
+       //first = NULL;
     }
     else{
-        struct car* prev = first;
+        /*struct car* prev = first;
         while(prev->next->next != NULL){
             prev = prev->next;
         }
         this = prev->next;
         prev->next = NULL;
-        free(this);
+        free(this);*/
+    
+        cancel_train(first->next);
+        free(first);
     }
-    //cancel_train(first->next);
-    //free(first);
 
 }