1865. Finding Pairs With a Certain Sum

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You are given two integer arrays nums1 and nums2. You are tasked to implement a data structure that supports queries of two types: - Add a positive integer to an element of a given index in the array nums2. - Count the number of pairs (i, j) such that nums1[i] + nums2[j] equals a given value (0 <= i < nums1.length and 0 <= j < nums2.length). Implement the FindSumPairs class: - FindSumPairs(int

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solution.cppC++17

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