Implementing Binary Search – Part 1

The video tutorial explains how to implement a binary search algorithm. It begins by setting up the function with an array and target as inputs, and initializing left and right pointers. The process involves calculating the middle element and adjusting pointers based on comparisons with the target. The tutorial covers edge cases where the target is not found and demonstrates the function with examples. It concludes with advice to practice the algorithm step-by-step for better understanding.

What are the initial inputs required for the binary search function?

• Left and right pointers

• Target and index

• Array and index

• Array and target

How is the middle index calculated in the binary search algorithm?

• Left plus right divided by two

• Left minus right divided by two

• Right minus left divided by two

• Left multiplied by right

What should be done if the target is less than the middle element?

• Move the right pointer

• Move the left pointer

• Return the middle index

• End the search

What condition indicates that the target is not present in the array?

• Middle index is zero

• Left pointer equals right pointer

• Middle element equals target

• Left pointer is greater than right pointer

What value is returned if the target is not found in the array?

• The length of the array

• Zero

• Negative one

• One

In the example, what is the index position returned for the target value 30?

• Zero

• Tenth

• Fifth

• Third

What is the recommended approach if you do not understand the binary search process?

• Skip the topic

• Take a pen and paper and solve step by step

• Watch the video again

• Ask a friend for help