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Quick Summary
Implement an in-memory key-value store supporting exact CRUD operations.
Enable efficient retrieval of all values whose keys share a common prefix.
Balance constant-time exact lookups with fast prefix-based traversal.
What This Tests
Hash table implementation for O(1) exact key management
Trie construction and traversal for prefix queries
Maintaining synchronization between multiple data structures
Error handling for invalid states like duplicate keys
Common Patterns
Hashing
Trie
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