public static void search_postings_list(NodeT L) {
        LinkedList<NodeT> s = new LinkedList<NodeT>();
        int order = 0;
        s.push(L);
        while(!s.isEmpty()) {
            NodeT curr = s.pop();
            if(curr != null && curr.getOrder() == -1) {
                curr.setOrder(order++);
                s.push(curr.getNext());
                s.push(curr.getJump());
            }
        }
    }