Q4

     // Q4
        public static Stack<int> BiggestInNode(Stack<Node<int>> stk)
        {
            Console.WriteLine("Biggest Numbers:");
            Stack<int> NumStack = new Stack<int>();
            Node<int> temp;

            while (stk.IsEmpty() == false)
            {

                temp = stk.Pop();
                int max = temp.GetInfo();
                while (temp != null)
                {
                    if (temp.GetInfo() > max)
                    {
                        max = temp.GetInfo();
                    }

                    temp = temp.GetNext();
                }

                NumStack.Push(max);
            }

            return NumStack;
        }