The Category Ranker

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Seniority

L5

Problem

Given a list of records (dicts each with 'category' and 'value') and integer n, return a dict mapping each category to the top n records by value descending. Break ties by preserving original insertion order. If a category has fewer than n records, include all of them.

Summary

Categories have standing. Rows get theirs.

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