missing element in array

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Ramu was given an unsorted array $A$ of size $N$ of positive integers. One number $B$ from set ${1, 2, …N}$ is missing and one number $C$ occurs twice in array. Help him to find these two numbers. ### Input - The first line of input will contain a single integer $T$, denoting the number of test cases. - Each test case consists of multiple lines of input. - The first line of each test case con

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solution.cppC++17

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