Email Cost

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Consider N students of IIT - Jodhpur. Each student i have information A[i] - a positive integer, stored which he/she needs to send. Every student i sends this information to student j such that i is a friend of j and the friendship is bidirectional. It is guaranteed that the path on this friendship network between any two students i and j is unique. Now every student i needs to send information A

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solution.cppC++17

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