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Which of the following statements about selection sort are true? Note that you may select multiple statements. Group of answer choices Selection sort is a stable sorting algorithm. Selection sort is an in-place sorting algorithm. Selection sort has a worst case time complexity of O(nlogn). The default implementation of selection sort is not stable. Selection sort has a worst case time complexity of O(n2).

Question

Which of the following statements about selection sort are true? Note that you may select multiple statements. Group of answer choices

Selection sort is a stable sorting algorithm.

Selection sort is an in-place sorting algorithm.

Selection sort has a worst case time complexity of O(nlogn).

The default implementation of selection sort is not stable.

Selection sort has a worst case time complexity of O(n2).

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Solution

The correct statements about selection sort are:

  1. Selection sort is an in-place sorting algorithm. This is true because it only requires a constant amount O(1) of additional memory space.

  2. The default implementation of selection sort is not stable. This is true because it can change the relative order of equal elements.

  3. Selection sort has a worst case time complexity of O(n^2). This is true because for each element in the array, the algorithm needs to search through the rest of the array to find the smallest element. This results in a quadratic time complexity.

The statements "Selection sort is a stable sorting algorithm" and "Selection sort has a worst case time complexity of O(nlogn)" are not true.

This problem has been solved

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What is the worst case complexity of selection sort? a) O(nlogn) b) O(logn) c) O(n) d)

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Select the correct answerWhat is the advantage of selection sort over other sorting techniques?OptionsIt requires no additional storage spaceIt works best for inputs which are already sortedIt is faster than any other sorting techniqueIt is scalable

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A sorting algorithms is considered stable if it Group of answer choices preserves the relative order of any two equal elements in its input preserves the relative order of most two equal elements in its input perform its operations mostly in the same memory used by its input elements can change the relative order of equal elements in its input its worst case efficiency is in O(n log n)

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