class FibonacciSequence {
    let values: [Int]

    init(maxNumber: Int, includesZero: Bool) {
        var tempValues = includesZero ? [0, 1] : [1, 1]
        var i = tempValues.count

        while tempValues.last! <= maxNumber {
            let nMinus2 = tempValues[i - 2]
            let nMinus1 = tempValues[i - 1]

            let current = nMinus2 + nMinus1

            tempValues.append(current)

            i++
        }
        tempValues.removeLast()

        self.values = tempValues
    }
}

let fibanocciSequence = FibonacciSequence(maxNumber:4000000, includesZero: true)
println(fibanocciSequence.values)
let sum = fibanocciSequence.values.filter({ $0 % 2 == 0 }).reduce(0, combine: +)
println(sum)