Data Structures Algorithms-II MCQs

Page No. 13

Bottom up merge sort is a stable sort.


a true


bfalse


cA & B


dNone of these


View Answer true

Bottom up merge sort uses recursion.


a true


b false


cA & B


dNone of these


View Answer false

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


amerging


b partitioning


cselection


dexchanging


View Answer merging

What is the auxiliary space complexity of bottom up merge sort?


a O(1)


b O(n)


cO(log n)


dO(n log n)


View Answer O(n)

What is the auxiliary space complexity of standard merge sort?


a O(1)


bO(log n)


cO(n)


dO(n log n)


View Answer O(n)

Which among the following is the best cut-off range to perform insertion sort within a quick sort?


a N=0-5


bN=5-20


cN=20-30


dN>30


View Answer N=5-20

Which is the worst method of choosing a pivot element?


afirst element as pivot


blast element as pivot


cmedian-of-three partitioning


drandom element as pivot



How many sub arrays does the quick sort algorithm divide the entire array into?


a one


btwo


cthree


dfour


View Answer two

Quick sort uses join operation rather than merge operation.


atrue


bfalse


cA & B


dNone of these


View Answer true

Which of the following sorting algorithms is used along with quick sort to sort the sub arrays?


aMerge sort


bShell sort


cInsertion sort


dBubble sort\


View Answer Insertion sort

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