Brackets

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In this problem we have to check whether there is proper usage of brackets or not. In a properly netsted expression , the left one an opening and the right one a closing bracket should be in pairs. ( a + $ ( b = ) ( a ) ) is properly nested ( a + $ ) b = ) ( a ( ) is not In this problem we have many pair of brackets, so we have to put a second condition on the expression: the matching brackets

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solution.cppC++17

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