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Consider a string of the form A * B * C = D where A, B, C, D are integers and * could be “+” or “-” (without quotes). You have to figure out whether the equation is valid or not. ### Input:- The first line contains T test cases.Each test case will contain a string comprised of characters belonging to the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, +, -, =} only and no white spaces. The string will be stri

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solution.cppC++17

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