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If one uses straight two-way merge sort algorithm to sort the following elements in ascending order:
20,47, 15,8,9,4,40,30, 12, 17 
Then the order of these elements after second pass of the algorithm is
  • a)
    8, 9, 15, 20, 47, 4, 12, 17, 30, 40
  • b)
    8, 15, 20, 47, 4, 9, 30, 40, 12, 17
  • c)
    15, 20, 47, 4, 8, 9, 12, 30, 40, 17
  • d)
    4, 8, 9, 15, 20, 47, 12,17, 30, 40
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
If one uses straight two-way merge sort algorithm to sort the followin...
Given: 20, 47, 15, 8, 9, 4, 40, 30, 12, 17
2-way merge sort so group of 2 is taken at once.
2nd pass:

The order of elements after second pass of the algorithm is 8, 15, 20, 47, 4, 9, 30, 40, 12, 17.
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Most Upvoted Answer
If one uses straight two-way merge sort algorithm to sort the followin...
Explanation:

Initial Elements:
- 20, 47, 15, 8, 9, 4, 40, 30, 12, 17

First Pass of Merge Sort:
- Dividing the elements into pairs and sorting each pair
- 20, 47, 15, 8, 9, 4, 40, 30, 12, 17
- After first pass: 20, 47, 8, 15, 4, 9, 30, 40, 12, 17

Second Pass of Merge Sort:
- Merging pairs of sorted elements
- Merging (20, 47) and (8, 15) => 8, 15, 20, 47
- Merging (4, 9) and (30, 40) => 4, 9, 30, 40
- Merging (12, 17) => 12, 17
- Merging all together => 8, 15, 20, 47, 4, 9, 30, 40, 12, 17
Therefore, after the second pass of the algorithm, the elements will be in the order:

8, 15, 20, 47, 4, 9, 30, 40, 12, 17
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Question Description
If one uses straight two-way merge sort algorithm to sort the following elements in ascending order:20,47, 15,8,9,4,40,30, 12, 17Then the order of these elements after second pass of the algorithm isa)8, 9, 15, 20, 47, 4, 12, 17, 30, 40b)8, 15, 20, 47, 4, 9, 30, 40, 12, 17c)15, 20, 47, 4, 8, 9, 12, 30, 40, 17d)4, 8, 9, 15, 20, 47, 12,17, 30, 40Correct answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about If one uses straight two-way merge sort algorithm to sort the following elements in ascending order:20,47, 15,8,9,4,40,30, 12, 17Then the order of these elements after second pass of the algorithm isa)8, 9, 15, 20, 47, 4, 12, 17, 30, 40b)8, 15, 20, 47, 4, 9, 30, 40, 12, 17c)15, 20, 47, 4, 8, 9, 12, 30, 40, 17d)4, 8, 9, 15, 20, 47, 12,17, 30, 40Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If one uses straight two-way merge sort algorithm to sort the following elements in ascending order:20,47, 15,8,9,4,40,30, 12, 17Then the order of these elements after second pass of the algorithm isa)8, 9, 15, 20, 47, 4, 12, 17, 30, 40b)8, 15, 20, 47, 4, 9, 30, 40, 12, 17c)15, 20, 47, 4, 8, 9, 12, 30, 40, 17d)4, 8, 9, 15, 20, 47, 12,17, 30, 40Correct answer is option 'B'. Can you explain this answer?.
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