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The given array is arr = {1,2,3,4,5}. (bubble sort is implemented with a flag variable)The number of iterations in selection sort and bubble sort respectively are __________

(a) 5 and 4

(b) 1 and 4

(c) 0 and 4

(d) 4 and 1

The question was posed to me in a job interview.

Query is from Selection Sort in chapter Sorting of Data Structures & Algorithms II

1 Answer

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Correct option is (d) 4 and 1

The best I can explain: Selection sort is insensitive to input, hence 4(n-1) iterations. Whereas bubble sort iterates only once to set the flag to 0 as the input is already sorted.

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