Suppose you have an array where all elements are identical. Discuss the behavior of Quick Sort in this scenario and suggest a modification to improve its performance.

  • Quick Sort would efficiently partition the array but inefficiently sort it
  • Quick Sort would exhibit poor performance in this scenario
  • Quick Sort would sort the array with average efficiency
  • Quick Sort would terminate immediately due to a sorted array
Quick Sort's behavior in an array with identical elements is problematic as it often results in uneven partitions, leading to poor performance. To improve performance, a modification could involve implementing a pivot selection strategy that chooses a pivot intelligently, such as median-of-three or random pivot selection, to mitigate the issue of uneven partitions.
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