/// <summary>
/// Depth First Search tree traversal
/// </summary>
/// <param name="visitedNode">Takes a node which it will visit</param>
virtual protected void Visit(BinaryNode visitedNode)
{
Visit(visitedNode.Left);
Visit(visitedNode.Right);
}
protected override void Visit(BinaryNode visitedNode)
{
}
private BinaryNode _nodeDuplicator(BinaryNode oldNode) => new BinaryNode(oldNode.Left, oldNode.Right, oldNode.NodeType);
protected abstract T Visit(BinaryNode node);
