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ISLAND HOPPING

Ankit is on a vacation and wants to make the most of his annual summer trip. There are n islands arranged in a circular pattern on his itinerary that he really wants to visit. He has already decided his expenditure per island which is given as $island[i]$. $$ $$ Ankit usually travels cheap to save on unnecessary expenses and so he rents a motorboat with an unlimited oil tank and it costs $oil[i]$

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solution.cppC++17

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