TreeLand Journey

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Sergey recently got back from his TreeLand journey. As you might have probably guessed, TreeLand is a country located far to the east from ByteLand, the country he lives in. As you might have also probably guessed, it is called TreeLand, because historically the road system of the country forms a tree. So, there are N cities in the country and N-1 bidirectional roads, connecting them. The cities

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solution.cppC++17

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