Metro

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The city of Chefland has a metro network of $n$ stations where there are metro tunnels between certain pairs of stations. The budget was tight during construction, so the $n$ stations are connected using only $n - 1$ tunnels. Every station is still reachable from every other station. Being initially constructed with such a tight budget, it is no surprise that they have fallen into disrepair ove

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solution.cppC++17

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