Answer:
The correct answer is "[tex]O (n\times Log n)[/tex]". A further explanation is given below.
Explanation:
- Throughout all the three instances (worst, average as well as best), the time complexity including its Merge sort seems to be [tex]O (n\times Log n)[/tex] as the merge form often splits the array into two halves together tends to linear time to combine multiple halves.
- As an unsorted array, it needs an equivalent amount of unnecessary capacity. Therefore, large unsorted arrays are not appropriate for having to search.