Data Structures Algorithms-II MCQs

Page No. 16

Randomized quick sort is a stable sort.


atrue

✖


bfalse

✓


cA & B

✖


dNone of these

✖


View Answer false

Randomized quick sort is an in place sort.


atrue

✓


bfalse

✖


cA & B

✖


dNone of these

✖


View Answer true

What is the auxiliary space complexity of randomized quick sort?


a O(1)

✖


bO(n)

✖


cO(log n)

✓


dO(n log n)

✖


View Answer O(log n)

What is the purpose of using randomized quick sort over standard quick sort?


a so as to avoid worst case time complexity

✓


bso as to avoid worst case space complexity

✖


cto improve accuracy of output

✖


d to improve average case time complexity

✖



What is a randomized quick sort?


aquick sort with random partitions

✖


bquick sort with random choice of pivot

✓


cquick sort with random output

✖


dquick sort with random input

✖



What will be the pivot for the array arr={8,2,4,9} for making the first partition when a median of three quick sort is implemented?


a8

✓


b2

✖


c4

✖


d9

✖


View Answer 8

Median of three quick sort is a stable sort.


atrue

✖


bfalse

✓


cA & B

✖


dNone of these

✖


View Answer false

Median of three quick sort is an in place sort.


atrue

✓


bfalse

✖


cA & B

✖


dNone of these

✖


View Answer true

Quick sort uses which of the following method to implement sorting?


amerging

✖


b partitioning

✓


cselection

✖


dexchanging

✖


View Answer partitioning

What is the auxiliary space complexity of a median of three quick sort?


a O(1)

✖


bO(n)

✖


cO(log n)

✓


d O(n log n)

✖


View Answer O(log n)

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