Leetcode 2135: Count Words Obtained After Adding a Letter

In this Leetcode problem, we are asked to transform some words from an array of words to target words. Any word from the initial array can be used to be transformed in a target word using a specific transformation rule.

You are given two 0-indexed arrays of strings startWords and targetWords. Each string consists of lowercase English letters only.
For each string in targetWords, check if it is possible to choose a string from startWords and perform a conversion operation on it to be equal to that from targetWords.
The conversion



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