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| import Foundation | |
| func sumOfElements(_ array: [Int], _ sum: Int) -> Int { | |
| if array.count <= 0 { | |
| return sum | |
| } | |
| let newArray = Array(array.dropFirst(1)) | |
| return sumOfElements(newArray, sum + array.first!) | |
| } | |
| print("Sum of elements in array is: \(sumOfElements([10, 20, 30], 0))") |
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