Practice Adding And Undoing Queens (32.3.4) - Backtracking, N queens - Part B
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Adding and Undoing Queens

Practice - Adding and Undoing Queens

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What are the four directions from which a queen can attack?

💡 Hint: Think about how queens move on a chessboard.

Question 2 Easy

How can you tell if a square (i,j) is under attack?

💡 Hint: Remember the representation we discussed.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the main goal of the N-Queens problem?

To place N queens on a board
To eliminate queens
To create patterns with queens

💡 Hint: Think about what the challenge is centered around.

Question 2

True or False: A queen can attack only diagonally.

True
False

💡 Hint: Recall how a queen moves.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a configuration where queens are placed, propose an algorithm to generate all valid configurations for a board size N.

💡 Hint: Focus on extending the valid paths rather than getting stuck.

Challenge 2 Hard

Determine the optimality of using a nested dictionary for the N-Queens problem compared to a simple list or array.

💡 Hint: Consider how different data structures affect implementation clarity.

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Reference links

Supplementary resources to enhance your learning experience.