public T Pop()
{
var oldHead = Head;
Head = Head.Next;
// oldHead.Next = null;
return(oldHead.Value);
}
public void Push(T item)
{
var newCell = new LinkedStackNode <T>(item)
{
Next = Head
};
Head = newCell;
}
public LinkedStack(LinkedStackNode <T> head)
{
Head = head;
}