45. 접미사인지 확인하기

import Foundation

func solution(_ my_string:String, _ is_suffix:String) -> Int {
    
    var arr : [String] = []
    var my_String : String = ""
    var answer : Int = 0
    
    my_String = my_string
    
    arr.append(my_String)
    
    if my_String.count > 1 {
    
        for i in 1...my_string.count-1{
            my_String.removeFirst()
            arr.append(my_String)
        }
    } 
    
    answer = arr.contains(is_suffix) ? 1 : 0
    
    
    return answer
}