Ola Route Code Word Ladder Transform
Ola Route Code Word Ladder Transform
HardGraphs100% accepted
Ola route codes are 4-letter words. Transform beginWord to endWord by changing one letter at a time. Each intermediate word must exist in wordList. Find the length of the shortest transformation sequence.
Approach
Word Ladder: shortest transformation sequence length using BFS.
Input
hit cog
hot dot dog lot log cog
Output
5
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