The Number Miner
A medium 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
- medium
- Seniority
- L3
Interview Prompt
You're auditing a batch of JSON event payloads whose objects and arrays nest arbitrarily deep, and you need a tally of the integers buried inside them. Count how many times each integer appears anywhere across the batch, returned as a map from the integer's string form to its total.
Summary
JSON strings are hiding numeric secrets. Dig them out.
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