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In a recursive implementation of binary search, what is the base case?
In a recursive implementation of binary search, what is the base case?
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Practice Questions
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Q1
In a recursive implementation of binary search, what is the base case?
When the array is empty
When the target is found
When the left index exceeds the right index
When the mid index is zero
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The base case for recursion in binary search is when the left index exceeds the right index, indicating the target is not found.
Questions & Step-by-step Solutions
1 item
Q
Q: In a recursive implementation of binary search, what is the base case?
Solution:
The base case for recursion in binary search is when the left index exceeds the right index, indicating the target is not found.
Steps: 5
Show Steps
Step 1: Understand that binary search is a method to find a target value in a sorted array.
Step 2: In a recursive function, we keep dividing the array into halves.
Step 3: We use two indices: 'left' (the start of the current search range) and 'right' (the end of the current search range).
Step 4: The base case is a condition that stops the recursion. For binary search, this happens when 'left' is greater than 'right'.
Step 5: When 'left' > 'right', it means the target value is not in the array, and we should stop searching.
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