[프로그래머스][Lv. 1] 체육복 Swift 풀이

https://programmers.co.kr/learn/courses/30/lessons/42862

코딩테스트 연습 - 체육복

풀이는 추후에 차차 올리도록 하겠습니다...

 

 

 

import Foundation
 
func solution(_ n:Int, _ lost:[Int], _ reserve:[Int]) -> Int {
    var _lost: [Int] = lost.filter{!reserve.contains($0)}.sorted()
    var _reserve: [Int] = reserve.filter{!lost.contains($0)}.sorted()
    
    for savior in _reserve {
        if let index = _lost.index(of: savior - 1) {
            _lost.remove(at: index)
            continue
        }
        if let index = _lost.index(of: savior + 1) {
            _lost.remove(at: index)
        }
    }
    return n - _lost.count
}