First Sliding window example and the question in leetcode does not correlate

[jerrycaffe]

I discovered that while talking about the brute force solution i.e naive solution while explaining the sliding window patter, the leetcode example https://leetcode.com/problems/maximum-average-subarray-i/description/ is expected to return a single result of the maximum average, but the code example within the tutrorial returned the average of all k values.