Binary Trees

Binary Trees

A Dummy's Guide to Understanding Binary Trees in 10 minutes

Index

Introduction

Types of Binary Trees

Representation in Python

Traversal Techniques

Challenges/Quiz

Introduction

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Heirarchal Data Structure where each node has at most two children Consists of a root node and branches connecting child nodes Commonly used in searching and sorting algorithms

Types of Binary trees

There are multiple types, and it is important to understand each of them

Full

Every node has either 0 or 2 children

Complete

All levels are completely filled except possible the last

Balanced

Height difference between left and right subtrees is at most 1

BST

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Left subtree contains smaller values, right subtree contains larger values

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Types of Binary trees

There are multiple types, and it is important to understand each of them

Full

Complete

All levels are completely filled except possible the last

Balanced

BST

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Things to know

Representation

Implemented using Node and Binary Tree Each node stores a value, left child, and right child BinaryTree class maintains root node

Inorder

Used for BST sorting Left node -> Root -> Right node

Preorder

Used for copying trees Root -> Left node -> Right node

Postorder

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Used for deleting nodes Left node -> Right node -> Root

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Quiz and Recap Video

Test Your Knowledge

Hands-on Coding: Implement a function to insert a node in a BST. Ensure the Tree maintains BST Property. True/False: A Binary Tree node can have more than two children Multiple Choice: Which Traversal method visits nodes in sorted order? a. Preorder b. Inorder c. Postorder Short Answer: What is the key characteristic of a Balanced Binary Tree?

Quiz Continued

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