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deok-beom
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Nov 24, 2023
| import java.util.*; | ||
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| public class Deck { | ||
| private static final Deque<Card> cards = new ArrayDeque<>(); |
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과연 LinkedList보다 ArrayDeque가 더 효율적이겠네요 🤔
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| public void shuffle() { | ||
| List<Card> cardList = new ArrayList<>(cards); | ||
| Collections.shuffle(cardList); | ||
| cards.clear(); | ||
| cards.addAll(cardList); | ||
| } |
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이 로직을 보고 처음에 만들어지는 정렬된 카드 배열을 캐싱하면 어떨까 생각해보았습니다.
최초 초기화 블록에서 생성한 카드 뭉치를 별도로 저장해놓고 섞인 새로운 카드 뭉치가 필요할 때 복사해서 셔플만 하면 카드 뭉치를 다시 생성하는 시간을 아낄 수 있겠네요.
문제에서는 게임을 단 한 번밖에 진행하고 있어서 이러한 로직은 필요 없지만... 추후에 게임을 여러번 반복해서 진행하도록 패치한다면 실행 시간을 줄이는데 큰 도움이 될 것 같습니다. 👍
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