Implement scalable word count locally

Q: Implement scalable word count locally

This question evaluates understanding of scalable word-count processing, including tokenization and normalization rules, streaming or external-memory techniques for inputs larger than RAM, and efficient top‑K frequency computation.

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Question

Write a function that reads a very large text file and outputs the frequency of each word. Define your tokenization and normalization rules (case folding, punctuation, Unicode handling), and explain how to process inputs larger than RAM using streaming, chunking, or external sorting. Discuss producing the top‑K most frequent words efficiently and analyze time and space complexity.

Implement scalable word count locally

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