hithotcogpath
hardNeetCode 150

Word Ladder

Transform one word into another, changing one letter at a time, using only valid dictionary words. It's a shortest-path problem hiding behind a word puzzle—BFS finds the minimum steps. The insight is modeling words as graph nodes where edges connect words that differ by exactly one letter.

Arrays & HashingStringGraphsBFS / DFS
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1Shortest Transformationhard
Based onLeetCode

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