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Top-k prefix suggestions filtered by department

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GleanCodingLast asked Sep 2026

A service has a fixed list of suggestions, each (ngram, department, score). Implement getTopSuggestions(query, userDept, k), returning the k best-scoring suggestions that match the typed prefix and are allowed for the user's department, highest score first. Memory is tight, so think about how to index the list.

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