Implement file word count

Q: Implement file word count

This is a Coding & Algorithms interview question from Adobe for Software Engineer roles. View the full question and solution on PracHub.

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Question

Write a function that reads a large text file and returns the frequency count of each word. Define how you will normalize tokens (case, Unicode, punctuation, contractions), handle memory limits (streaming, chunking), and output the top-k most frequent words efficiently. Analyze time and space complexity and discuss trade-offs between hash maps, tries, and external sorting when the file barely fits in memory.

Implement file word count

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