Word Ladder II
Understand how to apply backtracking to solve the Word Ladder II problem by finding all shortest transformation sequences between two words. Learn to manipulate strings and efficiently explore valid transformations within constraints, enhancing your problem-solving skills for coding interviews.
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Statement
You are given two words, beginWord and endWord, and a dictionary of words called wordList. Your task is to find all the shortest transformation sequences from beginWord to endWord, such that:
Only one letter can be changed at a time.
Each transformed word must exist in the given
wordList.The transformation sequence must begin with
beginWordand end withendWord.
Return all the shortest transformation sequences as a list of lists. If no valid transformation exists, return an empty list.
Constraints:
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