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In Quick Sort, what is the role of the pivot element?

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Question: In Quick Sort, what is the role of the pivot element?

Options:

  1. To divide the array
  2. To sort the array
  3. To merge the arrays
  4. To find the median

Correct Answer: To divide the array

Solution: 

The pivot element in Quick Sort is used to divide the array into two parts, elements less than the pivot and elements greater than the pivot.

In Quick Sort, what is the role of the pivot element?

Practice Questions

Q1
In Quick Sort, what is the role of the pivot element?
  1. To divide the array
  2. To sort the array
  3. To merge the arrays
  4. To find the median

Questions & Step-by-Step Solutions

In Quick Sort, what is the role of the pivot element?
  • Step 1: Choose a pivot element from the array. This can be any element, but it's often the first, last, or middle element.
  • Step 2: Compare each element in the array to the pivot element.
  • Step 3: Divide the array into two parts: one part with elements less than the pivot and another part with elements greater than the pivot.
  • Step 4: The pivot element is now in its correct position in the sorted array, separating the two parts.
  • Pivot Element in Quick Sort – The pivot element is a key component in the Quick Sort algorithm, as it helps partition the array into two sub-arrays: one with elements less than the pivot and another with elements greater than the pivot.
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