The Unbroken Line
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
- L5
Interview Prompt
You're scanning one column of id values pulled from a data export, where each cell is raw text, the ids arrive in the order they were written, and values repeat. Return the length of the longest unbroken stretch of the column in which no id appears more than once.
Summary
The longest stretch that never repeats itself.
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