Question

A binary search algorithm is written (as in the modules, for example) which searches a pre-sorted array for some user-defined value, clientData. If clientData is stored in the array, it returns its array position, and if not found, it returns -1 (again, just like in the modules). Assume the array to be searched has 100 data elements in it. (Check all that apply):[NOTE: due to common off-by-one interpretations when counting such things, if your predicted answer is within one (+1 or -1) of a posted option below, you can assume your prediction and the choice you are looking at are equivalent and check that option.]A. It might return to the client with an answer after only one comparison of data.B. It may require as many as 99 comparisons of data before it returns.C. It will always return with an answer in 7 or fewer comparisons of data.D. It will always return with an answer in 3 or fewer comparisons of data.

Answer 1

Answer:

c) it will always return with an answer of 7 or fewer comparisons of data.

Explanation:

As maximum number of comparison in worst case for sorted binary search is log₂n, here n = 100, so maximum search is at least 6.6 which is approximately 7.