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What is the result of binary search if the array is empty?

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Question: What is the result of binary search if the array is empty?

Options:

  1. Returns 0
  2. Returns -1
  3. Returns null
  4. Throws an error

Correct Answer: Returns -1

Solution:

If the array is empty, binary search will return -1, indicating that the target is not found.

What is the result of binary search if the array is empty?

Practice Questions

Q1
What is the result of binary search if the array is empty?
  1. Returns 0
  2. Returns -1
  3. Returns null
  4. Throws an error

Questions & Step-by-Step Solutions

What is the result of binary search if the array is empty?
  • Step 1: Understand what binary search is. It is a method to find a target value in a sorted array by repeatedly dividing the search interval in half.
  • Step 2: Consider the case when the array is empty. An empty array means there are no elements to search through.
  • Step 3: Since there are no elements in the array, the binary search cannot find the target value.
  • Step 4: Therefore, the result of the binary search in an empty array is -1, which indicates that the target is not found.
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