clear

cv5/a_train.c

@@ -62,24 +62,25 @@ struct car* clear_train(struct car* first, const char* target) {
             return first;
         }
     }
-    struct car* temp = first;
     struct car* prev = first;
-    while(temp != NULL){
-        int x = strcmp(temp->value, target);
-        if(x != 0){
-            prev = temp;
-            temp = temp->next;
+    while(prev->next->next != NULL){
+        int x = strcmp(prev->next->value, target);
+        if(x == 0){ 
+            struct car* third = prev->next->next;
+            free(prev->next);
+            prev->next = third;
+            return third;
         }
-        else{
-            break;
+        prev = prev->next;
    }
 
+
+   int x = strcmp(prev->next->value, target);
+   if(x == 0){
+       free(prev->next);
+       prev->next = NULL;
+       return first;
    }
-    if(temp == NULL){
-        return 0;
-    }
-    prev->next = temp->next;
-    free(temp);
    return first;
       
 }