Batch Partitioner

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

Domain

Python

Difficulty

medium

Seniority

L4

Problem

Given a list of dicts and a key name, return a dict mapping each distinct value of records[i][key] to the list of records with that value (in original order).

Summary

One pile becomes many. Split wisely.

Practice This Problem

Solve this Python problem with real code execution. DataDriven runs your Python code in a real environment and grades it automatically.