What will be the output of the following Python code: arr = [1, 2, 3, 4, 5]; bin

Practice Questions

Q1
What will be the output of the following Python code: arr = [1, 2, 3, 4, 5]; binary_search(arr, 3)?
  1. 0
  2. 1
  3. 2
  4. 3

Questions & Step-by-Step Solutions

What will be the output of the following Python code: arr = [1, 2, 3, 4, 5]; binary_search(arr, 3)?
  • Step 1: Understand what binary search is. It is a method to find an element in a sorted list by repeatedly dividing the search interval in half.
  • Step 2: Look at the given array: arr = [1, 2, 3, 4, 5]. This array is already sorted.
  • Step 3: Identify the element we are searching for, which is '3'.
  • Step 4: Start the binary search. Set the initial left index to 0 (first element) and the right index to 4 (last element).
  • Step 5: Calculate the middle index: (left + right) // 2 = (0 + 4) // 2 = 2.
  • Step 6: Check the value at index 2 in the array, which is '3'.
  • Step 7: Since the value at index 2 matches the element we are searching for, we have found it.
  • Step 8: The index of the element '3' in the array is 2.
No concepts available.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely