https://programmers.co.kr/learn/courses/30/lessons/12910
func solution(_ arr:[Int], _ divisor:Int) -> [Int] {
var collection : [Int] = []
for i in arr {
if i % divisor == 0 {
collection.append(i)
}
}
if collection.count == 0 {
collection.append(-1)
}
return collection.sorted()
}