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The Character Map

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

Domain
Python
Difficulty
easy
Seniority
staff

Interview Prompt

Our text analytics pipeline needs a character distribution analyzer. Write a function called char_count that takes a string and returns a dictionary mapping each character to its frequency - the NLP team uses this as a preprocessing step for language detection.

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