using System;

public class Program

{

    public static void Main()

    {

        // array consists of three rows

        int[][] intArray = new int[3][];

        // Assign values to the elements of a jagged array. Jagged array is composed of three separate single-dimensional arrays—one per row

        intArray[0] = new int[] { 1, 2 };

        intArray[1] = new int[] { 3, 4, 5 };

        intArray[2] = new int[] { 6, 7, 8, 9 };

        // Alternatively, array initializer syntax

        int[][] intArray1 = { new[] { 1, 2 }, new[] { 3, 4, 5 }, new[] { 6, 7, 8, 9 } };

        Console.WriteLine("\n**********Access each element of the arrays**********\n");

        Console.WriteLine(intArray[0][0]); // return 1

        Console.WriteLine(intArray[1][2]); // return 5

        Console.WriteLine(intArray[2][1]); // return 7

        Console.WriteLine("\n**********Access a value of an indexed array element and then assign a value to it with assignment operator (=)**********\n");

        intArray[0][0] = 10;

        intArray[1][2] = 50;

        intArray[2][1] = 70;

        Console.WriteLine(intArray[0][0]);

        Console.WriteLine(intArray[1][2]);

        Console.WriteLine(intArray[2][1]);

​

    }

}