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

L4

Problem

A monitoring export hands you per-minute throughput readings in `nums`, and you want the busiest sustained stretch of exactly `k` consecutive minutes. Return the highest average over any contiguous block of `k` readings, which can run negative when traffic dips below baseline. Return `None` when there are fewer than `k` readings to fill a single block.

Summary

The sweetest stretch in the sequence.

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