DIY: Expressive words
Explore how to determine the number of stretchy words relative to a given string. Understand how to extend character groups and implement a function that counts these words, preparing you for coding interview scenarios involving string manipulation and pattern matching.
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Problem statement
Given a string, S, and a list of words, return the number of words that are stretchy.
A word in words is stretchy with respect to S if S can be derived by extending the letters of the word. Here is the extend rule:
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