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What happens if the element being searched for is not present in the array durin
Practice Questions
Q1
What happens if the element being searched for is not present in the array during a binary search?
It returns -1
It raises an error
It returns the last index
It returns None
Questions & Step-by-Step Solutions
What happens if the element being searched for is not present in the array during a binary search?
Steps
Concepts
Step 1: Start with a sorted array and the element you want to find.
Step 2: Set two pointers: one at the beginning of the array (left) and one at the end (right).
Step 3: Calculate the middle index of the array using the formula: middle = (left + right) / 2.
Step 4: Check if the element at the middle index is equal to the element you are searching for.
Step 5: If it is equal, return the middle index as the position of the element.
Step 6: If the element is less than the middle element, move the right pointer to middle - 1.
Step 7: If the element is greater than the middle element, move the left pointer to middle + 1.
Step 8: Repeat steps 3 to 7 until the left pointer is greater than the right pointer.
Step 9: If the left pointer exceeds the right pointer, it means the element is not in the array.
Step 10: Return -1 to indicate that the element is absent.
No concepts available.
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