What happens if the array is not sorted before performing a binary search?

₹0.0

Question: What happens if the array is not sorted before performing a binary search?

Options:

Correct Answer: It will give incorrect results

Solution:

If the array is not sorted, binary search will give incorrect results because it relies on the order of elements.

What happens if the array is not sorted before performing a binary search?

What happens if the array is not sorted before performing a binary search?

Step 1: Understand what binary search is. It is a method to find an item in a sorted array by repeatedly dividing the search interval in half.
Step 2: Know that binary search assumes the array is sorted. This means the elements are in a specific order (like smallest to largest).
Step 3: If the array is not sorted, the positions of the elements are mixed up. This means the binary search will not work correctly.
Step 4: When binary search checks the middle element, it may not be the correct one because the order is wrong.
Step 5: As a result, binary search may skip over the target element or give a wrong answer, leading to incorrect results.

Binary Search – A search algorithm that finds the position of a target value within a sorted array.
Array Sorting – The process of arranging the elements of an array in a specific order, typically ascending or descending.
Algorithm Assumptions – The underlying conditions that an algorithm relies on to function correctly, such as the order of elements in binary search.