October 2014
Intermediate to advanced
218 pages
4h 38m
English
Now that you know how to work with BST, you can dive into the study of trees if you would like to.
BST has an problem: depending on how many nodes you add, one of the edges of tree can be very deep, meaning a branch of the tree can have a high level, and another branch can have a low level, as shown in the following diagram:

This can cause performance issues when adding, removing, and searching for a node on a particular edge of the tree. For this reason, there is a tree called Adelson-Velskii and Landis' tree (AVL tree). The AVL tree is a self-balancing BST tree, which means the height of both the left and right subtree of ...
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