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iOS Swift 2.0 Collections and Control Flow Control Flow With Conditional Statements FizzBuzz

Posted by Alia Khan
Alia Khan
3,733 Points

Swift FizzBuzz Challenge

Hi I completed the challenge in playground and there are no errors however when I paste that into the compiler it won't accept my answer. I have made the changes and changed the number variable to n like it asked but I'm a bit confused as to what it wants me to do with the last bit. Ive gotten rid of the last else statement and it still won't compile.

This is my code

fizzBuzz.swift 
func fizzBuzz(n: Int) -> String {
  // Enter your code between the two comment markers

  var n = 10



if (n % 3 == 0 && n % 5 == 0) {
    print("FizzBuzz") } else if (n % 3 == 0) {
        print("Fizz")
    } else if (n % 5 == 0) {
    print("Buzz") } else { (n % 3 != 0 && n % 5 != 0)
    print("\(n)")

}

  // End code
  return "\(n)"
}

1 Answer

miikis
miikis
44,957 Points

Hi Alia,

The Challenge says to use return statements instead of the print() function. Your code should look something like this:

func fizzBuzz(n: Int) -> String {
  // Enter your code between the two comment markers
  if (n % 3 == 0 && n % 5 == 0) {
    return "FizzBuzz"
  }

  if (n % 3 == 0) {
    return "Fizz"
  }

  if (n % 5 == 0) {
    return "Buzz"
  }
  // End code
  return "\(n)"
}
Alia Khan
Alia Khan
3,733 Points

Hi what about this line (n % 3 != 0 && n % 5 != 0) there was no error in playground when I wrote this, is is wrong

Thanks for your help :)

miikis
miikis
44,957 Points

Yeah, that's wrong.

The modulo operator (%) is equal to the remainder of a division. And if the remainder of a division is zero, then that means that the second number of that division goes into the first number evenly. Which is just another way of saying that the second number is a multiple of the first, right? So that's what we're looking for in the FizzBuzz problem: I give you an arbitrary number and you tell me if that number is a multiple of 3, a multiple of 5 or a multiple of both 3 and 5. In other words: When does n % 3 = 0? When does n % 5 = 0? And when does n % 3 = 0 and n % 5 = 0?

Does that answer your question?

finndieckhoff2
finndieckhoff2
1,547 Points

In my case, they never managed the return statement in the videos before this challenge. How should I know about it ? Works return in the same way as print()?