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Solution: Count Pairs Whose Sum is Less than Target

Solution: Count Pairs Whose Sum is Less than Target

Let’s solve the Count Pairs Whose Sum is Less than Target problem using the Two Pointers pattern.

Statement

You are given a 0-indexed integer array, nums, of length nn, and an integer target. Your task is to determine the number of distinct pairs of indexes (i,j)(i, j) such that:

  • 0≤i<j<n0 \leq i < j < n (i.e., ii comes before jj ...

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