Solution: Count Pairs Whose Sum is Less than Target

Explore how to efficiently count distinct pairs in an integer array whose sums are less than a given target by applying the two-pointer approach. Understand how sorting the array and moving pointers can reduce complexity, allowing you to solve the problem with O(n log n) time and O(n) space. This lesson helps you implement a structured method to handle sum-based pair counting by leveraging order and traversal techniques.