The Staircase Problem

A medium Python mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.

Domain
Python
Difficulty
medium
Seniority
L4

Interview Prompt

On our staircase, a climb is a series of moves of 1 or 2 stairs at a time. Return how many climbs reach the top of `n` stairs.

Summary

One step or two, the choices add up.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your Python against test cases
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision