public static void TestLl() { var list = new LinkedList <int>(); list.PushBack(5); list.PushBack(4); list.Push(11); list.PushBack(7); list.PushBack(1); Output(list); list.Insert(4, 6); Output(list); var list2 = new LinkedList <int>(); list2.PushBack(11); list2.PushBack(12); list2.Push(19); list.AddAll(list2); Output(list); new Sorter <int>(SortType.Dsc).MergeSort(list); Output(list); Console.WriteLine("Complete."); }