What is the worst-case scenario for binary search?a.The target element is in the middle of the array.b.The target element is not present in the array.c.The target element is the first element of the array.d.The target element is the last element of the array.
Question
What is the worst-case scenario for binary search?a.The target element is in the middle of the array.b.The target element is not present in the array.c.The target element is the first element of the array.d.The target element is the last element of the array.
Solution
The worst-case scenario for binary search is b. The target element is not present in the array.
Here's why:
Binary search is an efficient algorithm for finding an item from a sorted list of items. It works by repeatedly dividing in half the portion of the list that could contain the item, until you've narrowed down the possible locations to just one.
a. If the target element is in the middle of the array, this is actually the best-case scenario. Binary search will find it in the first comparison.
c. If the target element is the first element of the array, binary search will still find it quickly, although it will take a few more comparisons than in the best-case scenario.
d. If the target element is the last element of the array, binary search will also find it in a relatively small number of comparisons.
b. However, if the target element is not present in the array, binary search will end up examining half the array on average. This is because it has to keep dividing the search space in half until it has been reduced to one possible location, and then it can confirm that the target is not there. This is
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