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Introduction
I have used Swift for windows 1.9 for debugging purpose. But you can use any Swift programming language compiler as per your availability.
func rotate_left_3(_ arra: [Int]) -> [Int] { var new_arra = arra new_arra.removeFirst() new_arra.append(arra.first!) return new_arra } print(rotate_left_3([7, 8, 9])) print(rotate_left_3([-2, 0, 2])) print(rotate_left_3([0, 20, 0]))