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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does it mean for a square on the board to be 'under attack'?
💡 Hint: Consider the positions from where the queen could attack.
Question 2
Easy
How can we represent whether a specific row is under attack?
💡 Hint: Think of a binary value: 0 or 1.
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 purpose of the attack array in the N-Queens problem?
- To track points where queens can be placed
- To identify which squares are under attack
- To list all possible queen configurations
💡 Hint: Think about the safety of each square regarding queen placements.
Question 2
True or False: A square is free if its row, column, and both diagonals are all set to 1.
- True
- False
💡 Hint: Refresh your understanding of attack markers.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a 5x5 board. Outline a method to check placements of multiple queens and identify the recursion needed to ensure no queens can attack each other.
💡 Hint: Remember how to reset the markers when backtracking.
Question 2
Implement a Python function that takes an N value and returns all valid queen placements on an N x N board using the discussed strategies.
💡 Hint: Your function should be efficient; ensure you're using the right conditions to add or remove queens.
Challenge and get performance evaluation