Travel love

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Luffy is a pirate who loves to travel in the unknown sea. There are different island in this ocean. Some islands have good restaurants and some don't. Being a foody Luffy get's happy when the island have a good restaurant and gets sad when there is no good place to eat. $N$ number of islands are given to you that are connected in the form of a tree. Each vertex v of this tree has a value assigned

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solution.cppC++17

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