Max Sum Subarray of Length | Dataford Interview Questions

Dell OpenManage Enterprise processes sequences of server telemetry readings. Given an integer array readings and a desired window length k, return the maximum sum of any contiguous subarray containing exactly k readings.

Use a sliding-window approach rather than recomputing every window from scratch.

Formal Specification

Implement max_window_sum(readings, k).

Input: readings, a list of integers, and k, a positive integer.
Output: An integer representing the largest sum among all contiguous subarrays of length k.
Every valid window must contain exactly k consecutive elements. The array may contain negative values.

Constraints

1 <= k <= len(readings)
1 <= len(readings) <= 10^5
-10^6 <= readings[i] <= 10^6
The result may be negative

Function Signature

def max_window_sum(readings, k):

Your question is Max Sum Subarray of Length. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem