Alien Invasion

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Evil aliens from Alpha Centauri are planning to invade the Earth. They thought of invading New York City first, but that is a pretty popular target, and their colleagues from Proxima Centauri are already invading it. Thus, Alpha Centauriens had to figure out another target and the country of Treeland was their choice. The country of Treeland consists of $n$ cities connected with $n - 1$ bidirecti

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solution.cppC++17

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