The Link Shrinker
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
- L4
Interview Prompt
Given a URL string and a mutable dict code_map, generate a 6-character lowercase hex short code from the MD5 hash of the URL (first 6 hex chars), store code_map[code] = url, and return the code. If the code collides with an existing different URL, extend to the next 6 hex chars; keep extending until a unique code (for simplicity tests will not collide).
Summary
Long addresses have aliases - you give them out, you keep the map.
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