The Letter Tally
An easy Python mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- Python
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
We're tallying character frequencies across free-text fields coming out of a data feed. Implement a `CharCounter` class built from a string `text`, plus a top-level `char_counter_demo(text)` that constructs it and returns its `get_counts()`: one `[char, count]` pair per distinct character it saw.
Summary
Each character in the string has a count to answer for.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your Python against test cases
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision