public Node populateTree(Node r, int[] data, int i)
{
if (i < data.Length)
{
r = new Node(data[i]);
r.SetLeft(populateTree(root.GetLeft(), data, i * 2 + 1));
r.SetRight(populateTree(root.GetRight(), data, i * 2 + 2));
}
return(r);
}
