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The Forgetful Machine

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
senior, staff

Interview Prompt

Implement an LRU (Least Recently Used) cache class with a fixed capacity. It should support get(key) returning the value or -1 if not present, and put(key, value) which inserts or updates. When capacity is exceeded, evict the least recently used key.

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