kasua

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            // elso feladat
            int[] eszam = new int[20];
            Random rnd = new Random();

            for (int i = 0; i < eszam.Length; i++)
            {
                eszam[i] = rnd.Next(-51, 50);
                Console.Write("{0,4}", eszam[i]);
            }

            // masodik
            bool van = false;
            for (int j = 0; j < eszam.Length; j++)
            {
                if (eszam[j] % 3 == 0)
                {
                    van = true;
                }
            }
            Console.WriteLine(van);
            // harmadik
            int negativ = 0;
            for (int e = 0; e < eszam.Length; e++)
            {
                if (eszam[e] < 0)
                {
                    negativ++;
                }
            }

            Console.ReadLine();
        }
    }
}