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You are given an array $A$ of $N$ integers that denotes the lucky numbers of passengers that want to board the flight. There are 4 planes available and all of them are designed by Airbus. You need to assign each passenger to one of these flights (it may be possible that flight remains empty) such that the sum of the happiness value of all the four flights combined is maximum possible. The happines

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solution.cppC++17

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