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The Mirror Flip

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, mid

Interview Prompt

A UI rendering engine needs to mirror binary tree structures for right-to-left display modes. Write a function that takes the root of a binary tree and inverts it by swapping every left and right child recursively. Return the root of the inverted tree.

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