ЯсноПонятно24

using System; using System.Collections.Generic; using System.Linq;

class Program { static void Main() { int[] array = { 1, 2, 3, 4, 2, 2, 3, 4, 4, 4, 5 };

    Dictionary<int, int> frequency = new Dictionary<int, int>();

    foreach (int num in array)
    {
        if (frequency.ContainsKey(num))
        {
            frequency[num]++;
        }
        else
        {
            frequency[num] = 1;
        }
    }

    int mostFrequentElement = frequency.Aggregate((x, y) => x.Value > y.Value ? x : y).Key;

    Console.WriteLine("Most frequently occurring element: " + mostFrequentElement);
}

}