clear

cv5/a_train.c

@@ -63,31 +63,19 @@ struct car* clear_train(struct car* first, const char* target) {
         }
     }
     struct car* this = first;
-    while(this->next != NULL){
-        int x = strcmp(this->value, target);
+    while(this->next->next != NULL){
+        int x = strcmp(this->next->value, target);
         if(x == 0){ 
-            struct car* tmp = first;
-            struct car* prev = first;
+            struct car* third = this->next->next;
             if(first == this){
                 first = this->next;
                 free(this);
                 return first;
             }
-            if(first->next == this){
-                while(tmp->next != NULL){
-                    prev = tmp;
-                    tmp = tmp->next;
-                }
-                if(tmp == first){
-                    first = NULL;
-                }
-                else{
-                    prev->next = NULL;            
-                } 
-                free(tmp);   
+            else {
+                free(this->next);
+                this->next = third;   
            }
-
-
         }
         this = this->next;
    }