C#: Generate a cartesian product of three sets

C# Sharp LINQ : Exercise-24 with Solution

Write a program in C# Sharp to generate a cartesian product of three sets.

Sample Solution:

C# Sharp Code:

using System;
using System.Linq;
using System.Collections.Generic;

class LinqExercise24
{
    public static void Main(string[] args)
    {
        // Declaring arrays of characters, integers, and strings
        char[] charset1 = { 'X', 'Y', 'Z' };
        int[] numset1 = { 1, 2, 3 };
        string[] colorset1 = { "Green", "Orange" };

        // Printing a prompt for the Cartesian product generation
        Console.Write("\nLINQ : Generate a cartesian product of three sets : ");
        Console.Write("\n----------------------------------------------------\n");

        // Using LINQ to generate the Cartesian product of the three sets
        var cartesianProduct = from letter in charset1
                               from number in numset1
                               from colour in colorset1
                               select new { letter, number, colour };

        // Displaying the generated Cartesian product
        Console.Write("The Cartesian Product are : \n");
        foreach (var ProductList in cartesianProduct)
        {
            // Printing each element of the Cartesian product
            Console.WriteLine(ProductList);
        }

        // Waiting for user input before closing the console application
        Console.ReadLine();
    }
}

OR

using System;
using System.Linq;
using System.Collections.Generic;
 
class  LinqExercise24
{
    public static void Main(string[] args)
        {

            char[] set1 = { 'X', 'Y', 'Z' };
            int[] set2 = { 1, 2, 3 };
            string[] set3 = { "Green", "Pink" };
	
            Console.Write("\nLINQ : Generate a cartesian product of three sets: "); 
            Console.Write("\n---------------------------------------------------\n");		

            var set12CartesianProduct = set1.SelectMany(
                letterList => set2.Select(numList => 
                new { letterList, numList }));

            var cartesianProduct = set12CartesianProduct.SelectMany(
                (set1and2) => set3.Select(colorList =>
                new { set1and2.letterList, set1and2.numList, colorList }));

			Console.Write("The Cartesian Product are : \n");
            foreach (var ProductList in cartesianProduct)
                {
                Console.WriteLine(ProductList);
                }
            Console.ReadLine();
        }    
}

Sample Output:

LINQ : Generate a cartesian product of three sets :                                                           
----------------------------------------------------                                                          
The Cartesian Product are :                                                                                   
{ letter = X, number = 1, colour = Green }                                                                    
{ letter = X, number = 1, colour = Orange }                                                                   
{ letter = X, number = 2, colour = Green }                                                                    
{ letter = X, number = 2, colour = Orange }                                                                   
{ letter = X, number = 3, colour = Green }                                                                    
{ letter = X, number = 3, colour = Orange }                                                                   
{ letter = Y, number = 1, colour = Green }                                                                    
{ letter = Y, number = 1, colour = Orange }                                                                   
{ letter = Y, number = 2, colour = Green }                                                                    
{ letter = Y, number = 2, colour = Orange }                                                                   
{ letter = Y, number = 3, colour = Green }                                                                    
{ letter = Y, number = 3, colour = Orange }                                                                   
{ letter = Z, number = 1, colour = Green }                                                                    
{ letter = Z, number = 1, colour = Orange }                                                                   
{ letter = Z, number = 2, colour = Green }                                                                    
{ letter = Z, number = 2, colour = Orange }                                                                   
{ letter = Z, number = 3, colour = Green }
{ letter = Z, number = 3, colour = Orange }

Flowchart:

C# Sharp Code Editor:

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