Welcome to Insertion Sort

Insertion Sort is a simple sorting algorithm that builds the sorted array one element at a time. It’s similar to how you might sort playing cards in your hand.

What You’ll Learn

By the end of this tutorial, you’ll be able to:

• ✅ Explain insertion sort and how it works
• ✅ Implement insertion sort in code
• ✅ Analyze performance and understand complexity
• ✅ Identify when to use insertion sort
• ✅ Compare with other sorting algorithms

Tutorial Structure

This tutorial is divided into 7 interactive pages (about 25 minutes):

1. Introduction (3 min) - What is insertion sort
2. How It Works (4 min) - Step-by-step algorithm
3. Visualization (4 min) - See it in action
4. Implementation (5 min) - Code it yourself
5. Complexity Analysis (4 min) - Time and space complexity
6. Optimizations (3 min) - Making it better
7. Practice & Quiz (2 min) - Test your knowledge

Interactive Features

Throughout this tutorial, you’ll use:

• 🎬 Animated Visualizations - Watch insertion sort step-by-step
• 🎯 Interactive Sorters - Sort arrays yourself
• 📊 Animated Diagrams - See how insertion works
• ✅ Knowledge Checks - Test your understanding
• 💻 Code Examples - Run and modify code

Prerequisites

Before starting, you should have:

• Basic understanding of arrays
• Familiarity with loops
• Understanding of time complexity concepts

Don’t worry if you’re not an expert - we’ll explain concepts as we go.

Estimated Time

⏱️ 25 minutes to complete all 7 pages

You can take breaks between pages and resume anytime. Your progress will be tracked as you navigate through the tutorial.

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What is Insertion Sort?

Quick Preview: Insertion Sort works by building a sorted array one element at a time. It takes each element and inserts it into its correct position in the already-sorted portion of the array.

Why learn it: Insertion sort is simple, stable, and efficient for small datasets or nearly sorted arrays. It’s how many people naturally sort cards.

Ready to start? Click the button above to begin!