Alan and Marbles

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Alan has $N$ cylindrical tubes placed in a sequence. In $i^{th}$ cylinder there are $a_i$ marbles. All the cylinders have the same diameter and all the marbles have the same diameter. The diameter of the cylinders is just slightly greater than that of the marbles, thus the marbles will form a **queue** in the cylinders. In **one minute**, **one marble exits** through the bottom of the cyli

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solution.cppC++17

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