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Leetcode Problem 126. Word Ladder II

126. Word Ladder II

Leetcode Solutions

Breadth-First Search (BFS) + Backtracking

  1. Store wordList in a set for efficient access.
  2. Perform BFS to build the DAG, adding edges to an adjacency list adjList and removing visited words from the wordList.
  3. Once BFS is complete, use backtracking to traverse the DAG and find all shortest paths from beginWord to endWord, storing them in shortestPaths.
  4. Return the list of shortest paths.
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Bidirectional Breadth-First Search (BFS) + Backtracking

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