CONCEPT PRACTICE

Selection sort comparison range

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2024 Autumn · Subject A · Q7

Original 2024 Autumn · Subject A, question 7. Accessible description follows. — Original exam question · Select the image to enlarge

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Which of the following is the appropriate description of the “selection sort” algorithm?

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Choose your answerAAn intermediate reference value is determined, and then the elements are divided into two groups of “larger” values and “smaller” values. This operation is recursively repeated.BEach set of elements extracted at regular intervals is sorted, and then the interval is further decreased. The operation is repeatedly performed until the interval becomes 1.CThe element with the largest value is determined and swapped for the last element, and then the largest value of the unsorted elements is determined and swapped for the second-to-the-last element. This operation is repeated in the same way.DTwo adjacent elements are repeatedly compared and swapped if the first element is larger than the second. This operation is repeated until all elements are arranged in an orderly fashion.

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Source: 2024A_FE-A_Questions.pdf, PDF page 7. ID: 2024A-A-Q007. Explanation written for this textbook.