Data Structures Algorithms-II MCQs

Page No. 30

The auxiliary array used in pigeonhole sorting is called ______________


abucket


bpigeon


c hole


dpigeonhole


View Answer pigeonhole

What is the space complexity of pigeonhole sort (k=range of input)?


a O(n*k)


bO(n)


cO(k)


dO(n+k)


View Answer O(n+k)

In which of the following case pigeonhole sort is most efficient?


awhen range of input is less than number of elements


b when range of input is more than number of elements


cwhen range of input is comparable to the number of elements


dwhen the given array is almost sorted



Which of the following is a non-comparison sort?


aheap sort


bquick sort


cmerge sort


dpigeonhole sort


View Answer pigeonhole sort

How many comparisons will be made to sort the array arr={1,5,3,8,2} using pigeonhole sort?


a5


b 7


c9


d0


View Answer 0

. LSD radix sort is in-place sorting algorithm.


aFalse


b True


cA & B


dNone of these


View Answer False

Which of the following is true for the LSD radix sort?


aworks best for variable length strings


baccesses memory randomly


cinner loop has less instructions


d sorts the keys in left-to-right order



Which of the following is a combination of LSD and MSD radix sorts?


aForward radix sort


b 3-way radix quick sort


cTrie base radix sort


d Flash sort


View Answer Forward radix sort

Which of the following should be used to sort a huge database on a fixed-length key field?


a) Insertion sort


bMerge sort


cLSD radix sort


dQuick sort


View Answer LSD radix sort

LSD radix sort is faster than comparison sorts.


aTrue


b False


cA & B


dNone of these


View Answer False

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