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Dsa Two Pointers Warm-up

Count Unique Pairs

Given a sorted array of integers, write a function that counts the number of unique pairs (i, j) such that i < j and arr[i] + arr[j] is equal to a target value. Input: The first line contains space-separated integers of the array, followed by a single integer (the target value). Output: An integer representing the count of unique pairs. Example: Input: 1 2 3 4 5 6 Output: 2 (Pairs are (1, 5) and (2, 4).)

Key concepts

two_pointersarraysorting

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