linq Distinct

  private static void D1()
        {
            int[] ints = new int[] { 1, 1, 11, 3, 2, 4, 5, 6, 7, 5, 12, 3, 32, 4, 5, 8 };
            var s = ints.Select(o => o).AsEnumerable().Distinct().ToList();
        }