Chef and XOR Queries

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Mr. X has given the Chef an undirected tree \( T \) with \( n \) nodes numbered from 1 to \( n \). Each edge \( e_i \) of the tree has a non-negative integer \( w_i \) written on it. But the edge weights are hidden from you. You have access only to the structure of the tree, i.e., you know all the edges \( e_i \). Mr. X has taught Chef how to compute the function \( f(u, v) = \) Bitwise \( XOR \)

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solution.cppC++17

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