Which sorting algorithm has the best average-case performance?

Practice Questions

Q1
Which sorting algorithm has the best average-case performance?
  1. Bubble Sort
  2. Quick Sort
  3. Selection Sort
  4. Insertion Sort

Questions & Step-by-Step Solutions

Which sorting algorithm has the best average-case performance?
  • Step 1: Understand what sorting algorithms are. They are methods used to arrange data in a specific order, like from smallest to largest.
  • Step 2: Learn about average-case performance. This refers to how well an algorithm performs on average, considering all possible inputs.
  • Step 3: Identify common sorting algorithms. Some examples are Bubble Sort, Merge Sort, and Quick Sort.
  • Step 4: Compare the average-case performance of these algorithms. Quick Sort has an average-case performance of O(n log n), which is better than Bubble Sort (O(n^2)) and similar to Merge Sort (O(n log n)).
  • Step 5: Conclude that Quick Sort has the best average-case performance among the common sorting algorithms listed.
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