The Step Counter

An easy 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
easy
Seniority
L3

Interview Prompt

For a staircase of `n` steps where each move covers 1 or 2 of them, return how many different climbs reach the top.

Summary

You can hop one step or two - how many ways to reach the top?

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