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The Letter Mapper
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
- mid, senior
Interview Prompt
Write a function that takes two strings of equal length and returns True if they are isomorphic. Two strings are isomorphic if each character in one maps to exactly one character in the other with no two characters mapping to the same target.
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