The Window Cleaner
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
Each user session is captured as one string of single-character event codes, with `s` holding the codes for one replay. Find the length of the longest unbroken stretch of `s` in which no event code repeats.
Summary
Keep it fresh, keep it unique.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your Python against test cases
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision