Langton's Ant: Simulate Grid Cellular Automata Ant Traversal (CTCI 16.22)

TL;DR

• The Problem: CTCI problem 16.22 technical mechanics.
• The Approach: CTCI problem 16.22: simulate K steps of Langton's Ant cellular automata on an infinite grid.
• Complexity: Optimal Time and Memory bounds.

This article provides a clear breakdown of CTCI problem 16.22.

1. Context and Problem Statement

CTCI problem 16.22: simulate K steps of Langton's Ant cellular automata on an infinite grid.

2. Technical Code & Mechanics

public class LangtonsAnt {
    private final Set<String> blackCells = new HashSet<>();
    // Simulate ant orientation turn and step
}

3. Key Takeaways and Edge Cases

Always test boundary conditions and invalid input states.