[Swift] K번째 수

import Foundation

func solution(_ array:[Int], _ commands:[[Int]]) -> [Int] {
    
    var answer = [Int]()
    var new_array = [Int]()
    
    for command in commands {
        
        
        for i in command[0]-1..<command[1] {
            new_array.append(array[i])
        }
        new_array.sort()
        answer.append(new_array[command[2]-1])
        new_array.removeAll()
    }
    return answer
}