From 0 to 1 Data Structures & Algorithms in Java - Binary Search - search quickly through a sorted list

From 0 to 1 Data Structures & Algorithms in Java - Binary Search - search quickly through a sorted list

Assessment

Interactive Video

Information Technology (IT), Architecture, Mathematics

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains the inefficiency of linear search in sorted lists and introduces binary search as a more efficient alternative. It details how binary search works by repeatedly dividing the search area in half, using a midpoint to determine which half to continue searching. An example is provided to illustrate the process, followed by a walkthrough of the iterative code implementation of binary search. The tutorial emphasizes the importance of understanding binary search, especially for technical interviews.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is a linear search not ideal for finding an element in a sorted list?

It is too complex to implement.

It only works for unsorted lists.

It does not take advantage of the sorted order.

It requires additional memory.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of using binary search over linear search?

It can search unsorted lists.

It requires less memory.

It is faster due to halving the search area.

It is easier to implement.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In binary search, what is the first step after identifying the midpoint of the list?

Check if the midpoint is the largest element.

Sort the list again.

Remove the midpoint from the list.

Check if the midpoint is the element you are searching for.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During a binary search, if the search element is greater than the midpoint, what should you do next?

Restart the search.

Search the first half of the list.

Search the second half of the list.

Search both halves of the list.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the 'min' and 'max' variables in the binary search implementation?

To store the indices of the first and last elements.

To count the number of elements.

To track the current search range.

To store the smallest and largest elements.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does binary search determine the next search area?

By checking the entire list again.

By removing elements from the list.

By sorting the list.

By comparing the search element with the midpoint.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the time complexity of binary search?

O(n)

O(n^2)

O(log n)

O(1)

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