Leetcode Problem 127. Word Ladder

127. Word Ladder

Leetcode Solutions

Pre-process the wordList to create a dictionary that maps generic states to the original words.
Initialize a queue for BFS and add a tuple containing beginWord and 1 (representing the level or distance from the start).
Use a visited set to keep track of visited words to avoid cycles.
While the queue is not empty, dequeue the front element, and for each word, generate all possible generic states.
For each generic state, get the list of all words that share the same state from the pre-processed dictionary.
For each word in this list, if it is not visited, add it to the queue with the level incremented by 1.
If the endWord is found, return the current level as the answer.
If the queue gets empty and endWord is not found, return 0.

Programming Language

Purpose:

General Question

Debug My Code

image/screenshot of info(optional)

Full Screen