The Character Map
A easy Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- easy
- Seniority
- L6
Interview Prompt
Each record in `records` is a parsed log line: a single-character channel tag paired with the number of bytes that line carried. Return a dict mapping each channel tag to the total bytes across all lines that carried it.
Summary
Every character leaves a trace. Add them up.
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