How Can I Efficiently Shuffle a Deck of Cards Multiple Times in C# Based on User Input?

Card Shuffling in C#

Shuffling cards is a crucial aspect in card games to introduce randomness. This article delves into the topic of card shuffling in C#, addressing a specific scenario where you need to repeatedly shuffle a deck based on user input.

In the provided code, you have defined classes for representing a deck of cards, individual cards, and various enumerations. To incorporate card shuffling, we suggest employing the Fisher-Yates shuffle algorithm, which efficiently randomizes the elements in a collection.

Here's how you can add the Fisher-Yates shuffle functionality to your code:

Helper Class for Shuffling:

Create a static helper class called FisherYates to implement the shuffle algorithm.

static public class FisherYates
{
    static Random r = new Random();

    static public void Shuffle(int[] deck)
    {
        for (int n = deck.Length - 1; n > 0; --n)
        {
            int k = r.Next(n+1);
            int temp = deck[n];
            deck[n] = deck[k];
            deck[k] = temp;
        }
    }
}

Applying the Shuffle to the Deck:

In your Program.cs class, obtain the number of shuffles the user wants and utilize the FisherYates shuffle method to shuffle the deck accordingly.

int numOfShuffles = int.Parse(Console.ReadLine());
for (int i = 0; i < numOfShuffles; i++)
{
    FisherYates.Shuffle(mydeck.Cards);
}

Displaying the Shuffled Cards:

After shuffling, you can display the updated deck of shuffled cards.

foreach (Card c in mydeck.Cards)
{
    Console.WriteLine(c);
}

By leveraging the Fisher-Yates shuffle algorithm, your program can now shuffle the deck of cards as many times as the user specifies and display the resulting shuffled deck.

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