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Select the correct answerWhich of the following stable sorting algorithms applies to an almost sorted array the quickest?OptionsSelection sortMerge sortQuick sortInsertion sort

Question

Select the correct answerWhich of the following stable sorting algorithms applies to an almost sorted array the quickest?OptionsSelection sortMerge sortQuick sortInsertion sort

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Solution

The correct answer is Insertion sort.

Insertion sort is an efficient algorithm for sorting a small number of elements and it works well on almost sorted arrays. It works by dividing the array into a sorted and an unsorted region. Each new item is then "inserted" back into the previous region, in its proper order.

Here are the steps of how Insertion sort works:

  1. Assume the first element of the array is sorted (i.e., the sorted region consists of the first element only).
  2. Take the next element from the unsorted region and 'insert' it into the sorted region, ensuring the sorted region remains sorted.
  3. Repeat step 2 until the unsorted region is empty and the sorted region contains all the elements in the array, now sorted.

The other options, Selection sort

This problem has been solved

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