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Grokking the Coding Interview Patterns in C#

Solution: Word Ladder

Explore how to solve the Word Ladder problem by implementing breadth-first search to find the shortest transformation sequence between words. Understand the step-by-step BFS approach, including word adjacency, queue management, and optimization. This lesson equips you to handle similar graph traversal problems in coding interviews effectively.

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Statement

Given two words, src and dest, and a list, words, return the number of words in the shortest transformation sequence from src to dest. If no such sequence could be formed, return 00.

A transformation sequence is a sequence of words ((src →\to word1word_1 →\to word2word_2 ...