Chef and Mean

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Chef has invested his savings into $N$ coins (numbered $1$ through $N$). For each valid $i$, the $i$-th coin has value $A_i$. Chef does not want to know how much money he has, so he remembers the mean value of the coins instead of the sum of their values. A waiter from Chef's restaurant plans to steal exactly one of Chef's coins, but he does not want Chef to know about this, so he can only stea

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solution.cppC++17

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