private int[][] SplitToContinuousSequences(int[] numbers)

        {

            Debug.Assert(numbers!=null);

            Debug.Assert(numbers.Any());    

​

            var res = new List<int[]>();

            var currentSeq = new List<int>(new[] {numbers.First()});

            foreach (var number in numbers.Skip(1))

            {

                if (number - currentSeq.Last() == 1)

                {

                    currentSeq.Add(number);

                }

                else

                {

                    res.Add(currentSeq.ToArray());

                    currentSeq = new List<int>(new[] {number});

                }

            }

            res.Add(currentSeq.ToArray());

            return res.ToArray();

        }