func Euler19() {

    var dayOfWeek = 3
    var count = 0
    var febDays = 28
    let daysInMonth = [31, febDays, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]



        for y in 1901...2000 {
        for m in 1...12 {
        for d in 1...7 {

            if m == 2 && y % 4 == 0 {
                febDays = 29
            }
            else {
                febDays = 28
            }

            dayOfWeek = (d+daysInMonth[m]) % 7

            if dayOfWeek == 0 {
                count += 1
            }

            }
            }
    }

    print(count)

}

Euler19()