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Flatten the Feed
A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.
- Domain
- Python
- Difficulty
- easy
- Seniority
- junior, mid
Problem
The event feed API returns data nested to unpredictable depths, and the downstream consumer expects a flat array. Write a function that takes a nested list of any depth and produces a single flat list with all leaf elements in order.
Practice This Problem
Solve this Python problem with real code execution. DataDriven runs your Python code in a sandboxed Docker environment and grades it instantly.