/// <summary>
/// Method used to add a new node to a binary search tree.
/// </summary>
/// <param name="node">The new node to add to the binary search tree.</param>
public void AddNode(BinarySearchTreeNode node)
{
AddNodeHelper(head, node);
}
/// <summary>
/// Initializes a new instance of the <see cref="BinarySearchTree"/> class.
/// </summary>
/// <param name="head">The head node of the binary search tree.</param>
public BinarySearchTree(BinarySearchTreeNode head)
{
this.head = head;
}