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The Self-Portrait Number

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 data validation service needs to flag numbers with a special self-referential property for auditing. Write a function that takes a positive integer and returns True if it is an Armstrong number - one where the sum of each digit raised to the power of the total number of digits equals the original number.

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