Search⌘ K
AI Features

Solution: Count Subarrays With Score Less Than K

Understand how to apply the sliding window technique to count non-empty subarrays of an array where the score, defined as the sum of elements times the subarray length, is less than a given threshold. This lesson teaches you to efficiently calculate valid subarrays in linear time by maintaining a running sum and adjusting window boundaries.

Statement

An array score is defined as the sum of the array elements multiplied by its length. For example, if the array is [2,1,5][2, 1, 5] ...