Searching in a Binary Search Tree (Implementation)

This lesson about Searching in Binary Search Tree and how to implement searching functionality in Python.

We'll cover the following

Introduction

We are going to implement a search function for binary search trees which will return a node from the tree if the value to be searched matches it. We’ll again, implement both an iterative and a recursive solution. Here is a high-level description of the algorithm:

  1. Set the ‘current node’ equal to root.

  2. If the value is less than the ‘current node’s’ value, then move on to the left-subtree otherwise move on to the right sub-tree

  3. Repeat until the value at the ‘current node’ is equal to the value searched or it becomes None.

  4. Return the current node

Iterative Search Implementation

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