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Quicksort: Divide And Conquer

Understand the elegant algorithm that powers most real-world sorting by breaking big problems into small ones

Part of Search & Sort Algorithms

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Quicksort: The Algorithm That Powers the Internet

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Quicksort: The Algorithm That Powers the Internet

The strategy:

  1. Pick a "pivot" element
  2. Partition: Move smaller elements left, larger right
  3. Recursively sort left half and right half

Python's .sort(): Uses quicksort variant (Timsort) JavaScript's .sort(): Uses quicksort variant Java's Arrays.sort(): Uses quicksort variant

If you've called .sort(), you've used quicksort.

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Quiz: 3 Questions

Test your understanding with this quiz.

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Why is quicksort dramatically faster than bubble sort for large datasets?

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Divide-and-Conquer Thinking

Complete this exercise and get AI-powered feedback.

Divide-and-Conquer Thinking

Quicksort's strategy of breaking problems into smaller pieces applies beyond sorting.

Think about: Complex projects, learning new skills, organizing information, or any overwhelming task.