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There is a city with $N$ numbered $0 - N-1$ shops. A market is a place where we can reach from one shop to another using some road. There are $M$ roads in this city connecting each connecting any two shops. Find the number of markets in the city. NOTE: A market having only one shop is also a valid market. ###Input: - First line will contain $T$, number of testcases. Then the testcase

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solution.cppC++17

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