C Program to implement AVL Tree and its operations

By | April 22, 2017

Implement AVL Tree and its operations


Write a C Program to implement AVL Tree and its operations. Here’s simple Program to implement AVL Tree and its operations like Insertion, Deletion, Traversal and Display in C Programming Language.


What is AVL Tree ?


AVL tree is a self-balancing Binary Search Tree (BST) where the difference between heights of left and right subtrees cannot be more than one for all nodes.

Why AVL Tree? 


Most of the BST operations (e.g., search, max, min, insert, delete.. etc) take O(h) time where h is the height of the BST. The cost of these operations may become O(n) for a skewed Binary tree.

If we make sure that height of the tree remains O(Logn) after every insertion and deletion, then we can guarantee an upper bound of O(Logn) for all these operations. The height of an AVL tree is always O(Logn) where n is the number of nodes in the tree


Below is the source code for C Program to implement AVL Tree and its operations which is successfully compiled and run on Windows System to produce desired output as shown below :


SOURCE CODE : :



OUTPUT : :



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  1. Pingback: C Program to check if a Binary tree is AVL Tree or Not

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