# The last word

You just reached the end of the last chapter of the book. First, the classification of data structures was presented, taking into account linear and non-linear data structures. In the first group, you can find arrays, lists, stacks, and queues, while the second group involves graphs and their subtypes, including trees and heaps. In the following part of this chapter, the diversity of applications of various data structures was taken into account. You saw a short summary of each described data structure, as well as information about some problems that can be solved with the use of a particular data structure, such as a queue or a graph. To make the content easier to understand, as well as to remind you of the various topics from the previous chapters, the summary was equipped with brief descriptions and illustrations of data structures.

In the introduction to this book, I invited you to start your adventure with data structures and algorithms. While reading the following...