Threaded Binary Tree - Types of Binary Trees

Types of Binary Trees

  1. Single Threaded: each node is threaded towards either the inorder predecessor or successor.
  2. Double threaded: each node is threaded towards both the inorder predecessor and successor.

In Python:

def parent(node): if node is node.tree.root: return None else: x = node y = node while True: if is_thread(y.right): p = y.right if p is None or p.left is not node: p = x while not is_thread(p.left): p = p.left p = p.left return p elif is_thread(x.left): p = x.left if p is None or p.right is not node: p = y while not is_thread(p.right): p = p.right p = p.right return p x = x.left y = y.right

Read more about this topic:  Threaded Binary Tree

Famous quotes containing the words types of, types and/or trees:

    “The wider the range of possibilities we offer children, the more intense will be their motivations and the richer their experiences. We must widen the range of topics and goals, the types of situations we offer and their degree of structure, the kinds and combinations of resources and materials, and the possible interactions with things, peers, and adults.”
    —Loris Malaguzzi (1920–1994)

    “The American man is a very simple and cheap mechanism. The American woman I find a complicated and expensive one. Contrasts of feminine types are possible. I am not absolutely sure that there is more than one American man.”
    —Henry Brooks Adams (1838–1918)

    “The fish in neighboring streams and lakes are so voracious, it is said, that fishermen have to stand out of sight behind trees while baiting their hooks.”
    —For the State of Florida, U.S. public relief program (1935-1943)