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GATE | Quiz for Sudo GATE 2021 | Question 17
  • Last Updated : 15 Dec, 2020

Consider the following list of the integer:

19, 23, 40, 32, 91, 25, 100, 36 

Sort this list in increasing order using insertion sort and determine the number of passes, comparisons, and swaps. Here a pass means iteration of main loop. We may assume that we start checking from first element which is 19 here.

Note – This question is multiple select questions (MSQ).
(A) There will be total 8 passes for all 8 integers
(B) Number of comparisons and Swaps for each pass for given sequences to sort in increasing order are 14 and 7 respectively
(C) Number of comparisons for each pass for given sequences to sort in increasing order is 7
(D) Number of swaps for each pass for given sequences to sort in increasing order is 14


Answer: (A) (B)

Explanation: According to Insertion Sort, there will be total 8 passes for all 8 integers. Number of comparisons and Swaps for each pass for given sequences to sort in increasing order:

Comparisons: 0, 1, 1, 2, 1, 4, 1, 4 = 14 
Swaps: 0, 0, 0, 1, 0, 3, 0, 3 = 7 

So, options (A) and (B) are correct.

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