samedi 13 avril 2019

Generating Random Unique items from a string list

I have string list of a deck of card the strings are as such, A-DIAMONDS, 2-CLUBS, etc.

I want to be able to generate 5 unique items from this list randomly.

I know how to do this in python with Random.sample(5) but in trying to find a solution in C#. everything seems to be generating a random, put it in a list, generate another random, check it against the list and it is working fine.

Is there a more compact way of doing this in C#?

Here is my full code after using Linq for shuffling.

    class Program
{
    static void Main(string[] args)
    {
        string [] cardValues = { "A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K" };
        string [] cardSuites = { "HEARTS", "CLUBS", "DIAMONDS", "SPADES" };
        List<string> deckOfCards = new List<string>();

        foreach(string cardsuit in cardSuites)
        {
            foreach(string cardvalues in cardValues)
            {
                deckOfCards.Add(cardvalues + "-" + cardsuit);
            }

        }

        for(int i = 0; i <= 10; i++)
        {
            List<string> pokerHand = new List<string>();
            Random rand = new Random();
            deckOfCards = deckOfCards.Select(x => new { card = x, rand = rand.Next() }).OrderBy(x => x.rand).Select(x => x.card).ToList();
            for(int x = 0; x < 5; x++)
            {
                pokerHand.Add(deckOfCards[x]);
            }
            Console.WriteLine(String.Join(", ", pokerHand));
        }


        Console.ReadLine();
    }
}

}




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