프로그래머스 - 카펫 feat. 완전탐색

import Foundation

func solution(_ brown:Int, _ yellow:Int) -> [Int] {
    
    let sum = brown + yellow
    let b = brown / 2
    var answer: [Int] = []
    
    for i in (3...b) {
        if sum % i == 0 {
            for j in (3...b) {
                if i*j == sum && i >= j && (i-2)*(j-2)==yellow {
                    answer = [i, j]
                }
            }
        }
    }
    
    return answer
}