Java LLD: Design Tic-Tac-Toe with O(1) Win Detection

📰 Dev.to · Machine coding Master

Learn to design a Tic-Tac-Toe game with O(1) win detection in Java, improving your system design skills

intermediate Published 23 Jun 2026
Action Steps
  1. Design a Tic-Tac-Toe game board using a 2D array in Java
  2. Implement O(1) win detection by maintaining separate variables for row, column, and diagonal wins
  3. Write a function to handle player moves and update the game state
  4. Create a function to check for wins after each move
  5. Test the implementation with sample inputs to ensure correctness
Who Needs to Know This

Software engineers and developers can benefit from this lesson to improve their system design and problem-solving skills, especially when working on game development or competitive programming projects

Key Insight

💡 Use separate variables to track row, column, and diagonal wins for efficient O(1) detection

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🚀 Design Tic-Tac-Toe with O(1) win detection in Java! 💻

Key Takeaways

Learn to design a Tic-Tac-Toe game with O(1) win detection in Java, improving your system design skills

Full Article

Java LLD: Design Tic-Tac-Toe with O(1) Win Detection Designing Tic-Tac-Toe is a classic...
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