Mysterious Sequence

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Chef has invited Alice for his birthday party. Now, Alice is thinking about what to give Chef as a present. She should obviously choose a sequence ― what could possibly be a better birthday gift than a sequence! After some thinking, Alice chose a sequence of integers $A_1, A_2, \ldots, A_N$. However, she does not want to simply give this sequence to Chef. Instead, she decided to give Chef a seq

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solution.cppC++17

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