Find Second highest number from a Integer List.

 For example we have a integer list like below.

List<int> lst = new List<int> { 1, 2, 4, 3, 5, 6, 7, 8,11,13,23,10,9,18 };

            int first = int.MinValue; 

            int second = int.MinValue;

            int result;

            foreach (int i in lst)

            {

                if (i > first && i > second)

                {

                    second = first;

                    first = i;

               

                }

                else if (i > second)

                {

                    second = i;

                }

           

           

            }

            result = second;