Check strings against dictionary efficiently

Q: Check strings against dictionary efficiently

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

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Question

Given a large dictionary of unique words and a list of query strings, return for each query whether it exists in the dictionary. The dictionary may contain up to 1,000,000 words and the query list up to 100,000 strings. Optimize for many queries and minimal memory overhead. Describe your chosen data structure(s), expected time and space complexity, and how you would handle case sensitivity, Unicode normalization, and duplicate queries.

Check strings against dictionary efficiently

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