Snowy Hills

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Hyder's summer vacation is about to begin, and he has planned a trip to the Snowy Hills. Unfortunately, since he does not have a personal accountant yet, he needs your help to calculate the total cost of his journey. There are infinitely many checkpoints in the snowy hills, numbered $1, 2, 3, \ldots$ in increasing order of altitude. Hyder wants to visit some of these checkpoints in a given order

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solution.cppC++17

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