Assume we want to sort integers into ascending order. To sort a small array that contains 42, 17, selection sort will perform one swap, or three assignments. How many assignments will it perform to sort an array that contains these 10 elements: 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 ? Group of answer choices 15 18 24 27 63
Question
Assume we want to sort integers into ascending order. To sort a small array that contains 42, 17, selection sort will perform one swap, or three assignments. How many assignments will it perform to sort an array that contains these 10 elements: 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 ? Group of answer choices
15
18
24
27
63
Solution
Selection sort works by repeatedly finding the minimum element from the unsorted part of the array and putting it at the beginning. The algorithm maintains two subarrays in a given array: the subarray which is already sorted and the remaining subarray which is unsorted.
In every iteration of selection sort, the minimum element from the unsorted subarray is picked and moved to the sorted subarray.
For an array of size n, the number of assignments selection sort will perform is 3n (because each swap operation can be implemented as three assignment operations).
So, for an array of 10 elements, selection sort will perform 3 * 10 = 30 assignments. However, this option is not given in your choices.
The closest option is 27, but this is not the correct answer according to the standard implementation of selection sort. It's possible that the question is based on a different implementation of selection sort, or there may be a mistake in the question or answer choices.
Similar Questions
Assume we want to sort integers into ascending order. To sort a small array that contains 42, 17, insertion sort will perform three assignments. How many assignments will insertion sort perform to sort an array that contains these 10 elements: 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 ? Group of answer choices 15 18 24 55 63
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If the array had been sorted in descending order initially, how many swaps would the Bubble Sort perform?*0/1A. 10B. 15C. 20D. 25 Correct answerA. 10
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