Practice Simplified Search Process (32.4.1) - Backtracking, N queens - Part B
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Simplified Search Process

Practice - Simplified Search Process

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Practice Questions

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Question 1 Easy

What are the four ways a queen can attack a square?

💡 Hint: Think about the movements of a queen in chess.

Question 2 Easy

How is the status of a row under attack represented?

💡 Hint: Consider how we track attacked squares with arrays.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the attack representation help with?

Reducing time complexity
Simplifying problem statement
Visualizing the chessboard

💡 Hint: Consider what factors play a crucial role in making algorithms run faster.

Question 2

True or False: A queen can attack squares in all directions on the board.

True
False

💡 Hint: Recall the movement ability of a queen in chess.

2 more questions available

Challenge Problems

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Challenge 1 Hard

Design a linear representation for an N-Queens problem with N=5 and outline the steps needed to check if a position (3, 2) is free for placing a queen.

💡 Hint: Ensure that you apply the correct indices to your checks.

Challenge 2 Hard

Implement a function in Python that initializes attack arrays for a given N in the N-Queens problem and explain its complexity.

💡 Hint: Consider how many iterations you need to cover array creation.

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