Seemingly fixed the logic

du4/a_train.c

@@ -61,18 +61,19 @@ struct car* clear_train(struct car* first, const char* target) {
        return first;
 
     }
+    struct car* prev= NULL;
     struct car* temp = first;
-    struct car* next = first->next;
+    while (temp->next)
-    while (next->next)
+    { 
-    {if(strcmp(next->value, target) == 0){
+        prev = temp;
-        next->next = NULL;
+        temp = temp->next;
-        temp->next = next->next;
+        if(strcmp(temp->value, target) == 0){
-        free(next);
+        
+        prev->next = temp->next;
+        free(temp);
+        temp = prev->next;
 
     }
-    else{
-    temp = next;
-    next = next->next;}
     
     }