LOL QUERIES ON A TREE

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During Codechef’s December Long Challenge, Abdullah tried solving the problem “CHEFFIB” using centroid decomposition and fenwick tree but his approach was too slow. Frustrated by it, he came up with an easier (maybe?) version of the problem. Given a rooted tree T (root = node 1) with N vertices (all containing value 0), Perform Q queries of the following type and output the final tree (nodes 1 to

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L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

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L5 Full solution

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solution.cppC++17

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