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How to sort array with insertion sort?

C#  |  .NET  |  Algorithms

In the insertion sort, an array is divided into two parts, namely sorted and unsorted. At the beginning, the first element is included in the sorted part. In each iteration, the algorithm takes the first element from the unsorted part and places it in a suitable location within the sorted part, to leave the sorted part in the correct order. Such operations are repeated until the unsorted part is empty.

The code is as follows:

void Sort(int[] a)
    for (int i = 1; i < a.Length; i++)
        int j = i;
        while (j > 0 && a[j] < a[j - 1])
            (a[j], a[j - 1) = (a[j - 1], a[j]);

This entry can contain content, including parts of code, from one of my books, namely from the Second Edition of C# Data Structures and Algorithms, published by Packt Publishing in 2024. If you want to read more about the insertion sort algorithm, as well as about other kinds of sorting algorithms, I encourage you to take a look at the mentioned book. You can buy it here.

The content, including any part of code, is presented without warranty, either express or implied. The author cannot be held liable for any damages caused or alleged to have been caused directly or indirectly by any content shown on this website.

Hello, I am Marcin

Reliable entrepreneur with 10+ years of companies operation, such as CEO at a few IT companies. I was an author of a few software & hardware products, still open to new ideas & cooperation.

Helpful expert with 10+ years of experience, together with PhD and DSc in Computer Science. I was an author of books and publications, as well as an expert in international projects.

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If you want to learn data structures and algorithms in the context of C#, let's take a look at my newest book. It is the second edition of C# Data Structures and Algorithms. You can buy it here.


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