Data Structures Algorithms-II MCQs

Page No. 31

LSD radix sort requires _____ passes to sort N elements.


a(w/logR)

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b N(w/logR)

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c(w/log(RN))

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d (wN/log(N))

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View Answer (w/logR)

What is the worst case time complexity of LSD radix sort?


aO(nlogn)

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bO(wn)

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cO(n)

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dO(n + w)

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View Answer O(wn)

Which of the following is the distribution sort?


aHeap sort

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b Smooth sort

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cQuick sort

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dLSD radix sort

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View Answer LSD radix sort

What will be the order of elements of the array arr = {23, 67, 143, 654, 43} after first iteration of MSD sort is complete?


a23, 43, 67, 143, 654

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b23, 67, 43, 143, 654

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c23, 67, 143, 654, 43

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d23, 143, 43, 654, 67

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View Answer 23, 67, 43, 143, 654

What is the advantage of radix sort over quick sort?


aradix sort performs better than quick sort when we have log n bits for every digit

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bradix sort has lesser space complexity

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cradix sort is not a comparison based sorting technique

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dradix sort has better cache performance than quick sort

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Which of the following is not true about radix sort?


aRadix sort performs better than quick sort when we have log n bits for every digit

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bRadix sort has better cache performance than quick sort

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cRadix sort has higher values of constant factor in asymptotic notation

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dRadix sort takes more space than quick sort

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Which of the following statement is not a stable sorting algorithm?


aLSD radix sort

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bMSD radix sort

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c Counting sort

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d Pigeonhole sort

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View Answer MSD radix sort

MSD radix sort is an in place sorting algorithm.


aTrue

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bFalse

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cA & B

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dNone of these

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View Answer False

What is the average time complexity of MSD radix sort (w= bits required to store each key)?


aO(n + w)

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bO(n.w)

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cO(n2)

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d O(n log n)

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View Answer O(n.w)

MSD radix sort should be preferred over LSD radix sort when we have to maintain the original relative order.


aTrue

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b False

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cA & B

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dNone of these

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View Answer False

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