Which of the following scenarios is a real-world application of binary search?

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Question: Which of the following scenarios is a real-world application of binary search?

Options:

Correct Answer: Finding a name in a phone book

Solution:

Binary search is effectively used for finding a name in a sorted phone book.

Which of the following scenarios is a real-world application of binary search?

Which of the following scenarios is a real-world application of binary search?

Step 1: Understand what binary search is. It is a method used to find an item in a sorted list by repeatedly dividing the search interval in half.
Step 2: Think about a phone book. A phone book is a list of names that is sorted alphabetically.
Step 3: When you want to find a name in the phone book, you can open it to the middle page to see if the name is there.
Step 4: If the name you are looking for comes before the middle name, you can ignore the second half of the book and only look in the first half.
Step 5: If the name comes after the middle name, you ignore the first half and only look in the second half.
Step 6: Repeat this process until you find the name or determine that it is not in the book.

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