Which of the following sorting technique belongs to the divide-and-conquer approach?a.Selection sortb.Insertion sortc.Quick sortd.None of the above
Question
Which of the following sorting technique belongs to the divide-and-conquer approach?
a. Selection sort
b. Insertion sort
c. Quick sort
d. None of the above
Solution
c. Quick sort
Quick sort is a sorting algorithm that follows the divide-and-conquer approach. Here's a step-by-step explanation:
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Choose an element from the array to serve as a pivot. Usually, this is the first or last element in the array.
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Partition the other elements into two sub-arrays, according to whether they are less than or greater than the pivot. The pivot element is now in its final position.
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Recursively apply the above steps to the two sub-arrays.
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Repeat the process until the entire array is sorted.
Neither selection sort nor insertion sort follows the divide-and-conquer approach, so they are not correct answers.
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