In Quick Sort, which of the following is a common strategy for selecting the pivot element?
Quick Sort

Quiz
•
Information Technology (IT)
•
University
•
Medium
Amina Amina
Used 2+ times
FREE Resource
10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Choosing the first element
Choosing a random element
Choosing the median of the first, middle, and last elements
all of the above
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is Quick Sort?
A sorting algorithm that divides the array into smaller parts and sorts them independently.
(Алгоритм сортировки, который делит массив на меньшие части и сортирует их независимо.)
A divide-and-conquer algorithm that sorts items by partitioning an array into sub-arrays.
(Алгоритм «разделяй и властвуй», который сортирует элементы путем разделения массива на подмассивы.)
A linear search algorithm that finds the correct order of elements.
(Алгоритм линейного поиска, который находит правильный порядок элементов.)
An algorithm that sorts the array by repeatedly swapping adjacent elements.
(Алгоритм, который сортирует массив, постоянно меняя местами соседние элементы.)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the time complexity of Quick Sort in the best case
O(n)
O(log n)
O(n²)
O(n log n)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the time complexity of Quick Sort in the worst case?
O(n log n)
O(n)
O(n²)
O(log n)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which situation does the worst case time complexity of Quick Sort occur?
When the pivot divides the array into two nearly equal halves.
(Когда опорный элемент делит массив на две почти равные части.)
When the array is already sorted or reverse sorted.
(Когда массив уже отсортирован или отсортирован в обратном порядке.)
When a random pivot is chosen.
(Когда выбирается случайный опорный элемент.)
When the array contains only identical elements.
(Когда массив содержит только одинаковые элементы.)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the space complexity of Quick Sort?
O(log n)
O(n)
O(n log n)
O(1)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Stability yes or no
NO
YES
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