Data Structures Algorithms-II MCQs

Page No. 21

Why is heap sort preferred over merge sort for introsort implementation?


a Because heap sort is faster

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bBecause heap sort requires less space

✓


cBecause heap sort is easy to implement

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d Because heap sort is easy to understand

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Introsort sort is a comparison based sort.


atrue

✓


bfalse

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cA & B

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dNone of these

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View Answer true

Introsort begins sorting the given array by using which of the following sorting algorithm?


aselection sort

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bquick sort

✓


cinsertion sort

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dheap sort

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View Answer quick sort

Which of the following sorting algorithm is not a constituent of introsort?


a selection sort

✓


bquicksort

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c insertion sort

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dheap sort

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View Answer selection sort

Which of the following sorting algorithm is used by C++ internally?


aquicksort

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b introsort

✓


cmerge sort

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dheap sort

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View Answer introsort

What is the usual size of a run in tim sort?


a32

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bless than 32

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c 32-64 depending on size of the array

✓


d64

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In which case will tim sort will work as an insertion sort?


awhen no. of elements are less than 64

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bwhen no. of elements are greater than 64

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c when no. of elements are less than size of run

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d when no. of elements are less than 32

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Why is insertion sort preferred over other sorting algorithms (like selection sort, bubble sort etc.) for Tim sort implementation?


aBecause insertion sort is faster and adaptive

✓


bBecause insertion sort requires less space

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c Because insertion sort is easy to implement

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d Because insertion sort is easy to understand

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Which of the following algorithm is implemented internally in java when we use function arrays.sort()?


a intro sort

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bquick sort

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ctim sort

✓


dmerge sort

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View Answer tim sort

Tim sort is a comparison based sort.


atrue

✓


b false

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cA & B

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dNone of these

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View Answer true

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