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ISRO | ISRO CS 2017 – May | Question 48

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The number of swappings needed to sort the numbers 8, 22, 7, 9, 31, 5, 13 in ascending order, using bubble sort is

(A)

11

(B)

12

(C)

13

(D)

10



Answer: (D)

Explanation:

1: 8, 7, 9, 22, 5, 13, 31 = 4 swaps 
2: 7, 8, 9, 5, 13, 22, 31 = 3 swaps 
3: 7, 8, 5, 9, 13, 22, 31 = 1 swap 
4: 7, 5, 8, 9, 13, 22, 31 = 1 swap 
5: 5, 7, 8, 9, 13, 22, 31 = 1 swap 

Total 10 swaps are required to sort the array.

Hence Option(D) is the correct answer.


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Last Updated : 21 Mar, 2018
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