Question

我只是在Linq和IEnumerable中弄湿了，我需要帮助才能确定我的对象是否包含纸牌游戏的匹配项。我想如果我弄清楚了第一个问题，我需要做的另一个匹配检查将会落实到位。

public class Card
{
    pubic int Value { get; set; }
    public Card(int value)
    {
        this.Value = value;
    }
}

public bool IsCompletedSet(List<Card> cards)
{
    var cardValueGroups = cards.GroupBy(card => card.Value);
    //How do I determine that there are now exactly two groups of cards
    //and that each group contains exactly 3 cards each?
}

Answer 1

获取组数：

cardValueGroups.Count()

确保他们都有三张牌：

cardValueGroups.All(g => g.Count() == 3)

System.Linq和IEnumerable Group帮助

1 个答案: