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

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in Data Structures & Algorithms II by (111k points)
How many comparisons will be made to sort the array arr={1,5,3,8,2} using counting sort?

(a) 5

(b) 7

(c) 9

(d) 0

This question was posed to me in an interview for internship.

This question is from Sorting in chapter Sorting of Data Structures & Algorithms II

1 Answer

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Right answer is (d) 0

The best I can explain: As counting sort is an example of non comparison sort so it is able to sort an array without making any comparison.

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