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The Rolling Peak

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

Write a function that takes a list of numbers and an integer k. Return the maximum average of any contiguous subarray of length k, rounded to 5 decimal places. If the list is shorter than k, return None.

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.