Implement lazy array and KV store

Company: Databricks

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Onsite

Quick Answer: This question evaluates understanding of lazy evaluation and functional transformation chaining for a LazyArray alongside in-memory data structure design and stateful API behavior for a key-value store with hit counting, within the Coding & Algorithms domain covering functional programming, data structures, and API design.