15. Quicksort
The chapter focuses on the Quick sort algorithm, developed by Tony Hoare, which efficiently sorts an array by partitioning it into two subarrays based on a pivot element. It highlights the advantages of Quick sort over Merge sort, especially regarding memory usage, and explains the recursive nature of the algorithm. The chapter also elaborates on partitioning strategies and their significance in ensuring optimal sorting performance.
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What we have learnt
- Quick sort is an efficient sorting algorithm that works on the divide-and-conquer principle.
- The partitioning step is crucial for ensuring that the array is sorted correctly, with elements less than the pivot on one side and those greater on the other.
- Different partitioning strategies can be employed, influencing the algorithm's performance.
Key Concepts
- -- Quick Sort
- A sorting algorithm that utilizes a pivot to partition arrays into smaller subarrays which are then sorted recursively.
- -- Pivot Element
- An element selected from the array that is used to partition the array into two halves.
- -- Partitioning
- The process of rearranging the elements in an array so that elements smaller than the pivot come before it, and those greater come after.
- -- Recursive Sorting
- A technique where the algorithm calls itself with smaller subarrays until the base case is reached.
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