public static void Main(string[] args)
int[] numbers = { 1, 2, 3, 4, 2, 5, 3, 6, 7, 8, 5 };
Console.WriteLine("Tal som finns mer än en gång:");
for (int i = 0; i < numbers.Length - 1; i++)
for (int j = i + 1; j < numbers.Length; j++)
if (numbers[i] == numbers[j])
Console.WriteLine(numbers[i]);