static void Main(string[] args)
{
int[] array = new int[] { 0, 6, 2, 7, 2, 6 };
int first = int.MinValue;
int second = int.MinValue;
for (int i = 0; i < array.Length; i++)
{
if (array[i] > first)
{
second = first;
first = array[i];
}
else if (array[i] < first && array[i] > second)
{
second = array[i];
}
}
Console.WriteLine(second);
Console.ReadKey();
}
Output:
6