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C++ Data Structures and Algorithms

You're reading from  C++ Data Structures and Algorithms

Product type Book
Published in Apr 2018
Publisher Packt
ISBN-13 9781788835213
Pages 322 pages
Edition 1st Edition
Languages
Author (1):
Wisnu Anggoro Wisnu Anggoro
Profile icon Wisnu Anggoro

Table of Contents (16) Chapters

Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
1. Learning Data Structures and Algorithms in C++ 2. Storing Data in Lists and Linked Lists 3. Constructing Stacks and Queues 4. Arranging Data Elements Using a Sorting Algorithm 5. Finding out an Element Using Searching Algorithms 6. Dealing with the String Data Type 7. Building a Hierarchical Tree Structure 8. Associating a Value to a Key in a Hash Table 9. Implementation of Algorithms in Real Life 1. Other Books You May Enjoy Index

Jump search


Jump search is a searching algorithm to find the position of a searched value in a sorted list by dividing the array into several fixed-size blocks, jumping to the first index of the block, then comparing the value of the block's first index with the searched value. If the value of the block's first index is greater than the searched value, it jumps backward to the previous block, then starts a linear search of the block.

Developing jump search algorithm

Suppose we have an array containing {8, 15, 23, 28, 32, 39, 42, 44, 47, 48} elements, and we want to find the position of value 39. We will set the jump step by the square root elements number. Since the element number of the array is 10, the step will be √10 = 3. We will now compare the value of index 0, 3, 6, and 9. When the algorithm compares array[0] with 39, the value of array[0] is lower than the searched value. It then jumps to array[3] and compares its value with 39. Since the value is lower than the searched value, it...

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