MultiplesOfThreeAndFive

multiples.swift

// Ghetto Way
var numbers : [Int] = []
func multiplesOfThreeAndFive(range1: Int, range2: Int) -> Int {
    for i in range1..<range2 {
        if i % 3 == 0 || i % 5 == 0 {
            numbers.append(i)
        }
    }
    let sumOfMultiples = numbers.reduce(0, combine: +)
    return sumOfMultiples
}

multiplesOfThreeAndFive(1, range2: 1000)

// Fancy Pants Way
var newNumbers = Array((1..<1000))

let multiples = newNumbers
    .filter { $0 % 3 == 0 || $0 % 5 == 0 }
    .map { $0 }
    .reduce(0, combine: +)

print(multiples)