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Organising Data

Which sorting...

Question

Which sorting algorithm fastest?

A

Selection sort

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B

Bubble sort

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C

Quick sort

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D

Heap Sort

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Solution

The correct option is A Selection sort
Selection sorting algorithm fastest.

The selection sort is a combination of searching and sorting. During each pass, the unsorted element with the smallest (or largest) value is moved to its proper position in the array. The number of times the sort passes through the array is one less than the number of items in the array.

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Q. Which of the following sorting algorithms are stable?

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Q. Consider a new sorting algorithm similar to the bubble sort algorithm, called Rumble Sort. Given an array as input, Rumble Sort attempts to sort the array and produces a sorted array as output. Here' s the pseudocode for RumbleSort (L).

Rumblesort(L):
let sorted = false
while not sorted:
sorted = true
for i = 0; i < len (L) - 2; i + + ;
if L(i) > L [i + 2];
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reverse the given list from L(i) to L [i + 2] (unclusive).

Consider running RumblesSort on the following inputs.
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(ii) [5 6 4 8 3]
(iii) [3 4 8 6 5]
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