PEKKA Vs Defences

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Esports Ethan's Mom is screaming for him to come for dinner, but as usual he is busy attacking in Clash of Clans. Ethan needs to tell his mom when the attack will end so he can have dinner after that. He is busy attacking so he asks you for help to tell him when the attack will end. There are n defences remaining on the base in a straight line and you know that $i^{th}$ defence shoots bullets at

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solution.cppC++17

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