gistfile1.txt

namespace ConsoleApp1
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int[] array = new int[30];
            int lastNumber = 10;
            int repeatingNumber = 0;
            int currentAmountOfRepetitions = 0;
            int amountOfRepetitions = 0;
            int currentNumber = array[0];

            Random random = new Random();

            for (int i = 0; i < array.Length; i++)
            {
                array[i] = random.Next(0, lastNumber);
                Console.Write($"{array[i]} ");
            }

            foreach (var number in array)
            {
                if (number == currentNumber)
                {
                    currentAmountOfRepetitions++;
                }
                else
                {
                    currentAmountOfRepetitions = 1;
                    currentNumber = number;
                }

                if (currentAmountOfRepetitions > amountOfRepetitions)
                {
                    amountOfRepetitions = currentAmountOfRepetitions;
                    repeatingNumber = currentNumber;
                }
            }

            Console.WriteLine($"\nЧисло {repeatingNumber} повторяется больше всех, количество повторений - {amountOfRepetitions}.");
        }
    }
}