Query on a Tree - VII
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On her B'day, Ira got a Tree containing N nodes as a gift from her best friend. All the nodes of the tree, number from 1 to N, contains light bulb, which can glow either white or black. Initially all the bulbs are glowing white. All the nodes also contain some integer value, say ith one contains vali. These initial values will be given in the input. In order to add more joy to the occasion, she st
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solution.cppC++17
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