Familiar Ground
A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- medium
- Seniority
- L3
Interview Prompt
A linked list is stored compactly as an array where `next_pointers[i]` holds the index of node `i`'s successor. Starting at index 0 and following these pointers, return whether the walk ever returns to a node it already visited instead of eventually terminating.
Summary
Keep walking. Sooner or later you may recognize where you're standing.
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