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The Number Miner

A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
Python
Difficulty
medium
Seniority
junior, mid

Interview Prompt

You receive a list of JSON-formatted strings, each containing various fields. Extract every numeric value (integers only) from all strings combined and return a dictionary mapping each number to its total count across all strings. Ignore any non-numeric values.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your python solution with real code execution
  4. Get instant feedback and a hire/no-hire decision