Book Image

Hands-On Data Structures and Algorithms with Python - Third Edition

By : Dr. Basant Agarwal
Book Image

Hands-On Data Structures and Algorithms with Python - Third Edition

By: Dr. Basant Agarwal

Overview of this book

Choosing the right data structure is pivotal to optimizing the performance and scalability of applications. This new edition of Hands-On Data Structures and Algorithms with Python will expand your understanding of key structures, including stacks, queues, and lists, and also show you how to apply priority queues and heaps in applications. You’ll learn how to analyze and compare Python algorithms, and understand which algorithms should be used for a problem based on running time and computational complexity. You will also become confident organizing your code in a manageable, consistent, and scalable way, which will boost your productivity as a Python developer. By the end of this Python book, you’ll be able to manipulate the most important data structures and algorithms to more efficiently store, organize, and access data in your applications.
Table of Contents (17 chapters)
14
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15
Index

Choosing a search algorithm

Now that we’ve covered the different types of search algorithms, we can look into which ones work better and in what situations. The binary search and interpolation search algorithms are better in performance compared to both ordered and unordered linear search functions. The linear search algorithm is slower because of the sequential probing of elements in the list to find the search term.

Linear search has a time complexity of O(n). The linear search algorithm does not perform well when the given list of data elements is large.

The binary search operation, on the other hand, slices the list in two anytime a search is attempted. On each iteration, we approach the search term much faster than in a linear strategy. The time complexity yields O(logn). The binary search algorithm performs well but the drawback of it is that it requires a sorted list of elements. So, if the given data elements are short and unsorted then it is better to use the...