swift algorithm is simple 72.FizzBuzz

Writing a program, it outputs a number from 1 to n strings.

1. If n is a multiple of 3, the output "Fizz";

2. If n is a multiple of 5, the output "Buzz";

3. If n is a multiple of 3 and 5 at the same time, the output "FizzBuzz".

Example:

n = 15,

返回:
[
    "1",
    "2",
    "Fizz",
    "4",
    "Buzz",
    "Fizz",
    "7",
    "8",
    "Fizz",
    "Buzz",
    "11",
    "Fizz",
    "13",
    "14",
    "FizzBuzz"
]

 

solution:

    func fizzBuzz(_ n: Int) -> [String] {
                guard n > 0 else {
            return [""]
        }
        var array = [String]()
        
        for item in 1...n {
            if item % 3 == 0 && item % 5 == 0 {
                array.append("FizzBuzz")
            }else if item % 5 == 0{
                array.append("Buzz")
            }else if item % 3 == 0{
                array.append("Fizz")
            }else{
                array.append(String(item))
            }
        }
        
        return array

    }