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Implement flat_map, redistribute wealth evenly

Qube Research & TechnologiesSoftware Engineer · Technical Screen
MediumSoftware EngineerTechnical ScreenCoding & Algorithms

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This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Implement flat_map, redistribute wealth evenly states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

Question

Implement std::flat_map in C++, including its iterator; explain design choices and add thorough test cases. Given an array of integers representing individual wealth (negative, zero, or positive), redistribute the wealth so that every person’s wealth is as close as possible; describe your approach aloud while coding.