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The List Merger
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
- mid
Interview Prompt
Two data pipelines each produce a sorted stream of integer IDs. The downstream consumer needs a single merged stream that is also sorted, but calling sort() on the combined output is not allowed because the data may be too large to fit in memory at once. Write a function that merges two already-sorted lists into one sorted list using only the two-pointer technique.
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