public static OrdArray merge(OrdArray arr1, OrdArray arr2)
        {
            int      size = arr1.size() + arr2.size();
            OrdArray arr  = new OrdArray(size);

            int i = 0;
            int j = 0;
            int k = 0;

            while (j < arr1.size() && k < arr2.size())
            {
                if (arr1.getVal(j) < arr2.getVal(k))
                {
                    arr.setVal(i, arr1.getVal(j));
                    j++;
                }
                else if (arr1.getVal(j) > arr2.getVal(k))
                {
                    arr.setVal(i, arr2.getVal(k));
                    k++;
                }
                else
                {
                    arr.setVal(i, arr1.getVal(j));
                    arr.setVal(i, arr2.getVal(k));
                    j++;
                    k++;
                }
                arr.nElems++;
                i++;
            }
            //ostatni warunek jeżeli któraś tablica jest dłuższa

            while (j < arr1.size())
            {
                arr.setVal(i, arr1.getVal(j));
                j++;
                i++;
                arr.nElems++;
            }

            while (k < arr2.size())
            {
                arr.setVal(i, arr2.getVal(k));
                k++;
                i++;
                arr.nElems++;
            }

            return(arr);
        }
        static void Main(string[] args)
        {
            int      maxSize = 100;        // array size
            OrdArray arr1;                 // reference to array
            OrdArray arr2;

            arr1 = new OrdArray(maxSize);   // create the array
            arr2 = new OrdArray(maxSize);

            arr1.insert(77);                // insert 10 items
            arr1.insert(8);
            arr1.insert(44);
            arr1.insert(55);
            arr2.insert(22);
            arr2.insert(88);
            arr2.insert(11);
            arr2.insert(00);
            arr2.insert(66);
            arr2.insert(33);

            arr1.display();
            arr2.display();

            OrdArray arr3 = OrdArray.merge(arr1, arr2);

            Console.WriteLine("After merge: ");
            arr3.display();

            int searchKey = 55;            // search for item

            if (arr1.find(searchKey) != arr1.size())
            {
                Console.WriteLine("Found " + searchKey);
            }
            else
            {
                Console.WriteLine("Can't find " + searchKey);
            }

            arr1.display();                 // display items

            arr1.delete(00);                // delete 3 items
            arr1.delete(55);
            arr1.delete(99);

            arr1.display();                 // display items again
        }