Book Image

C++ Data Structures and Algorithm Design Principles

By : John Carey, Anil Achary, Shreyans Doshi, Payas Rajan
Book Image

C++ Data Structures and Algorithm Design Principles

By: John Carey, Anil Achary, Shreyans Doshi, Payas Rajan

Overview of this book

C++ is a mature multi-paradigm programming language that enables you to write high-level code with a high degree of control over the hardware. Today, significant parts of software infrastructure, including databases, browsers, multimedia frameworks, and GUI toolkits, are written in C++. This book starts by introducing C++ data structures and how to store data using linked lists, arrays, stacks, and queues. In later chapters, the book explains the basic algorithm design paradigms, such as the greedy approach and the divide-and-conquer approach, which are used to solve a large variety of computational problems. Finally, you will learn the advanced technique of dynamic programming to develop optimized implementations of several algorithms discussed in the book. By the end of this book, you will have learned how to implement standard data structures and algorithms in efficient and scalable C++ 14 code.
Table of Contents (11 chapters)

Tree – It's Upside Down!

As we discussed in the previous section, a tree is nothing but some objects or nodes connected to other nodes via a relationship that results in some sort of hierarchy. If we were to show this hierarchy in a graphical way, it would look like a tree, while the different edges would look like its branches. The main node, which is not dependent on any other node, is also known as a root node and is usually represented at the top. So, unlike an actual tree, this tree is upside down, with the root at its top!

Let's try to construct a structure for a very basic version of an organizational hierarchy.

Exercise 7: Creating an Organizational Structure

In this exercise, we will implement a basic version of the organizational tree we saw in the introduction to this chapter. Let's get started:

  1. First, let's include the required headers:

    #include <iostream>

    #include <queue>

  2. For simplicity, we'll assume that any person can have, at...