Nuttela loves trees

help
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Problem : CodeChef: Practical coding for everyone

Pls share approach for the above problem

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1)Flatten the tree using Euler Tour of the tree into an array .
2)Now use segment tree operations on the array to answer each query in O(logN) time.

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can u share your solution

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Karan bro can you help me in a problem?

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Will upload the editorial of this problem by tonight.

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editorial ??..@nuttela

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Nuttela Loves Trees - Editorial