Xor queries

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Once upon a time in... and we don't remember the rest of the story. You are given a weighted undirected acyclic graph with $N$ vertices ($1$ to $N$) and $Q$ queries. Per query, you are given vertices $X, Y$ output the [XOR] (https://en.wikipedia.org/wiki/Exclusive_or) of all the weights of edges between $X$ and $Y$. ###Input: - The first line contains three integers $N$ number of vertice

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solution.cppC++17

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