Chef And Fibonacci Tree

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Chef likes to play with trees a lot. This time, he has a rooted tree T consisting of N nodes labelled uniquely with the integers from {1, … N}. The node labelled 1 is the root of the tree. Each node in the given tree T stores a non-negative integer, initially all of which are zeros. Chef wants to perform 2 types of operations over the tree accurately and efficiently. - U X K: Update the subtree

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solution.cppC++17

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