(swift) [백준/boj] - 4673번: 셀프 넘버

https://www.acmicpc.net/problem/4673

4673번: 셀프 넘버

 

import Foundation

func d(_ n:String)->Int{
    var num = Int(n)!
    for i in n{
        num += Int("\(i)")!
    }
    return num
}

var arr = [Int]()
var answer = Set<Int>()

for i in 1...10000{
    answer.insert(i)
    arr.append(d(String(i)))
}
var TempSet = Set(arr)
answer.subtract(TempSet)
for i in answer.sorted(){
    print(i)
}