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The Merge Champion
A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.
- Domain
- Python
- Difficulty
- medium
- Seniority
- mid, senior
Problem
A log aggregation service receives sorted event streams from multiple sources and needs to merge them into a single chronological feed. Write a function that takes a list of sorted lists and returns a single sorted list containing all elements.
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.