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Chef is the king of the kingdom named Chefland. Chefland consists of $N$ cities numbered from $1$ to $N$ and $(N-1)$ roads in such a way that there exists a path between any pair of cities. In other words, Chefland has a [tree](https://en.wikipedia.org/wiki/Tree_(graph_theory)) like structure. Out of the $N$ cities in Chefland, $K$ $(1 \leq K \leq N)$ are considered *tourist attractions*. Chef

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solution.cppC++17

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