The Water Collector
A hard Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- hard
- Seniority
- L5
Interview Prompt
A survey gives you the `heights` of a row of vertical walls. Any two walls, together with the ground between them, form a container whose capacity is the shorter wall's height times the distance between them. Return the greatest capacity any pair of walls can hold.
Summary
Two walls, one sky, and a very important question.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision