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The Peak Finder

A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain
Python
Difficulty
easy
Seniority
junior

Problem

Our embedded analytics module can't use Python built-ins due to sandbox restrictions. Write a function called find_max that takes a list of integers and returns the largest value without using max(). Return None for empty lists.

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.