What is the primary advantage of using Merge Sort over Quick Sort?

Practice Questions

Q1
What is the primary advantage of using Merge Sort over Quick Sort?
  1. Faster for small datasets
  2. Stable sorting
  3. In-place sorting
  4. Less memory usage

Questions & Step-by-Step Solutions

What is the primary advantage of using Merge Sort over Quick Sort?
  • Step 1: Understand what sorting algorithms are. They are methods used to arrange data in a specific order.
  • Step 2: Learn about Merge Sort. It divides the data into smaller parts, sorts them, and then merges them back together.
  • Step 3: Learn about Quick Sort. It also sorts data but does it by selecting a 'pivot' and arranging other elements around it.
  • Step 4: Identify what 'stable sorting' means. A stable sorting algorithm keeps equal elements in the same order they appeared in the original list.
  • Step 5: Recognize that Merge Sort is stable, meaning it preserves the order of equal elements.
  • Step 6: Note that Quick Sort is not stable, which can change the order of equal elements.
  • Step 7: Conclude that the primary advantage of Merge Sort over Quick Sort is its stability.
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