Practice Attack Representation Strategy - 32.1.1 | 32. Backtracking, N queens - Part B | Data Structures and Algorithms in Python
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβ€”perfect for learners of all ages.

games

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is represented by the attack array in the context of the N-Queens problem?

πŸ’‘ Hint: Think about the movements of the queen piece in chess.

Question 2

Easy

How can we reduce the space complexity from N squared to linear?

πŸ’‘ Hint: Consider which pieces of information are essential.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the main challenge when representing the attacks of queens on a chessboard?

  • To track the number of queens
  • To keep the representation space efficient
  • To visualize the board

πŸ’‘ Hint: Consider how large an N squared representation would be compared to a linear one.

Question 2

True or False: In the attack representation strategy, every square's attack status is stored in an N squared array.

  • True
  • False

πŸ’‘ Hint: Reflect on the methods discussed in reducing the attack representation.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Write a Python function to count all unique solutions to the N-Queens problem using the representation strategy discussed.

πŸ’‘ Hint: Consider modifying the placement function to count instead of just finding one solution.

Question 2

Design a test case for a 6x6 chessboard and validate the attack representation before placing each queen.

πŸ’‘ Hint: Use the understanding of attack representation for validation.

Challenge and get performance evaluation