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The Squeeze

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
junior

Interview Prompt

Our message queue applies lightweight compression before transmission. Write a function that compresses a string using run-length encoding - 'aabcccaaa' becomes 'a2b1c3a3'. If the compressed version isn't shorter, return the original string unmodified.

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