2363. Merge Similar Items

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You are given two 2D integer arrays, items1 and items2, representing two sets of items. Each array items has the following properties: - items[i] = [valuei, weighti] where valuei represents the value and weighti represents the weight of the ith item. - The value of each item in items is unique. Return a 2D integer array ret where ret[i] = [valuei, weighti], with weighti being the sum of weights

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solution.cppC++17

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