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Python Data Structures and Algorithms

You're reading from Python Data Structures and Algorithms

Product type Book

Published in May 2017

Publisher Packt

ISBN-13 9781786467355

Pages 310 pages

Edition 1st Edition

Languages

Concepts

Author (1):

Benjamin Baka

Table of Contents (20) Chapters

Title Page

Credits

About the Author

About the Reviewer

www.PacktPub.com

Customer Feedback

Preface

1. Python Objects, Types, and Expressions

2. Python Data Types and Structures

3. Principles of Algorithm Design

4. Lists and Pointer Structures

5. Stacks and Queues

6. Trees

7. Hashing and Symbol Tables

8. Graphs and Other Algorithms

9. Searching

10. Sorting

11. Selection Algorithms

12. Design Techniques and Strategies

13. Implementations, Applications, and Tools

Binary trees

A binary tree is one in which each node has a maximum of two children. Binary trees are very common and we shall use them to build up a BST implementation in Python.

The following figure is an example of a binary tree with 5 being the root node:

Each child is identified as being the right or left child of its parent. Since the parent node is also a node by itself, each node will hold a reference to a right and left node even if the nodes do not exist.

A regular binary tree has no rules as to how elements are arranged in the tree. It only satisfies the condition that each node should have a maximum of two children.

Binary search trees

A binary search tree (BST) is a special kind of a binary tree. That is, it is a tree that is structurally a binary tree. Functionally, it is a tree that stores its nodes in such a way to be able to search through the tree efficiently.

There is a structure to a BST. For a given node with a value, all the nodes in the left sub-tree are less than or equal...

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Authors (1)

Benjamin Baka

Benjamin Baka is a full-stack software developer and is passionate about cutting-edge technologies and elegant programming techniques. He has 10 years in different technologies, from C++, Java, Ruby, Python to Qt. Some of the projects he's working on can be found on his GitHub page. He is currently working on exciting technologies all from the camp of mPedigree Network.

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