Word Rectangle: Largest Grid of Words Valid in Rows and Columns (CTCI 17.25)

TL;DR

• The Problem: CTCI problem 17.25 technical mechanics.
• The Approach: CTCI problem 17.25: create largest rectangle of letters such that every row and column forms a valid dictionary word.
• Complexity: Optimal Time and Memory bounds.

This article provides a clear breakdown of CTCI problem 17.25.

1. Context and Problem Statement

CTCI problem 17.25: create largest rectangle of letters such that every row and column forms a valid dictionary word.

2. Technical Code & Mechanics

public class WordRectangle {
    // Trie pruning search algorithm over word length groups
}

3. Key Takeaways and Edge Cases

Always test boundary conditions and invalid input states.