u2s3-codingChallenge - Sum

Sum.swift

func indicesToSum(from array: [Int], to target: Int) -> [Int] {
    for i in 1 ..< array.count {
        for j in 0 ..< i {
            if array[i] + array[j] == target { return [j,i] }
        }
    }
    print("ERROR: No sum possible!")
    return []
}

indicesToSum(from: [2,7,11,15], to: 9)
indicesToSum(from: [3,2,4], to: 6)
indicesToSum(from: [3,3], to: 6)
indicesToSum(from: [9,3,6,23,78,2,45,123,6,17], to: 140)