Given the following array, simulate merge sort.

Index:
0 1 2 3 4 5 6 7

Value:
34 6 89 55 7 42 9 1

Options:
A. 1 6 7 9 34 42 55 89
B. 89 55 42 34 9 7 6 1
C. 1 9 42 55 6 7 34 89
D. 89 34 55 1 42 7 9 6

Answer :

Final answer:

a) 1 6 7 9 34 42 55 89. To simulate merge sort on the given array, we split it into smaller arrays, then further split those until we get single-element arrays. We then merge these arrays back together by comparing elements, resulting in a fully sorted array: [1, 6, 7, 9, 34, 42, 55, 89].

Explanation:

To simulate merge sort on the given array Index [0 1 2 3 4 5 6 7] with Values [34, 6, 89, 55, 7, 42, 9, 1], we will follow the divide and conquer strategy employed by merge sort. Here is the step-by-step simulation:

  1. Split the array into smaller arrays:
    [34, 6, 89, 55] and [7, 42, 9, 1].
  2. Recursively divide these arrays until you have single-element arrays:
    [34, 6], [89, 55], [7, 42], and [9, 1]
    which further breaks down to
    [34], [6], [89], [55], [7], [42], [9], [1].
  3. Merge these single-element arrays by comparing elements and combining them back into sorted arrays:
    [6, 34], [55, 89], [7, 42], and [1, 9].
  4. Now merge these sorted arrays:
    [6, 34, 55, 89] and [1, 7, 9, 42].
  5. Finally, merge the last two sorted arrays into one sorted array:
    [1, 6, 7, 9, 34, 42, 55, 89].

The correct ordered sequence after applying merge sort to the given array is option (a) 1 6 7 9 34 42 55 89.