// Bad words set... Place all nasty words in this set...

let badWords: Set=["shit", "Shit", "SHIT", "Sh1t"]

//

// Function to check for badwords in the badWords Set

//

func checkForBadWord(_in: String) -> Bool {

    let temp: Set=[_in]

    var check: Bool!

    if temp.isDisjoint(with: badWords) == false

    {

        check = true

    } else {

        check = false

    }

    return check

}

//

// Fun function to print your name!

//

func sayHi(to: String) {

    print("Hi \(to)!")

}

//

// Main program starts here!

//

let yourName = "coty"

if checkForBadWord(_in: yourName)

{

    print("Please don't use bad words!")

}

else

{

    sayHi(to: yourName)

}