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Vinod is bored, so he decided to play a quick game. He has a sequence 'S' consisting of N integers and an empty array A. In each step Vinod removes either first or last number of sequence S and adds it at the end of the array A. This game continues till there are no more numbers left in S. In the end of the game, array A has N numbers. Now maximum of 2n-1 permutations of array A are possible depe

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solution.cppC++17

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