Sliding Window: Find Maximum Sum of Subarray of Size K

The Sliding Window pattern is 1 of the 14 most common patterns in coding interview questions. These patterns are documented in this article.

In this article, I’ll be going over the Find Maximum Sum of Subarray of Size K problem in detail and how I would approach it if it came up during an interview. By using the sliding window pattern, you’ll be able to optimally solve this problem.

Problem Description

Given an array of numbers and a number k, find the maximum sum of any contiguous…