Which sorting algorithm is stable?

Practice Questions

Q1
Which sorting algorithm is stable?
  1. Quick Sort
  2. Heap Sort
  3. Merge Sort
  4. Selection Sort

Questions & Step-by-Step Solutions

Which sorting algorithm is stable?
  • Step 1: Understand what a sorting algorithm is. A sorting algorithm is a method used to arrange elements in a specific order, like ascending or descending.
  • Step 2: Learn about stability in sorting algorithms. A stable sorting algorithm keeps equal elements in the same order they appeared in the original list.
  • Step 3: Identify Merge Sort. Merge Sort is a specific type of sorting algorithm that divides the list into smaller parts, sorts them, and then merges them back together.
  • Step 4: Confirm that Merge Sort is stable. When Merge Sort combines the sorted parts, it preserves the order of equal elements, making it a stable sorting algorithm.
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