ue4

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

namespace Kreuzerluebung_4
{
    class Program
    {
        static void Main(string[] args)
        {
            //eins();
            //zwei();
            //drei();
            vier();
            //fuenf();

            Console.ReadLine();
        }

        static void eins()
        {
            int[,] ar = new int[10, 10];
            Random r = new Random();
            int generalsum = 0;
            int unsum = 0;

            for (int i = 0; i < 10; i++)
            {
                for (int j = 0; j < 10; j++)
                {
                    ar[i, j] = r.Next(1, 100);
                    generalsum += ar[i, j];
                    Console.Write(ar[i, j]+" ");
                    if(ar[i, j]<10)
                        Console.Write(" ");
                }
                Console.WriteLine();
            }
            Console.WriteLine();

            for (int i = 0; i < 10; i++)
            {
                for (int j = 0; j < 10; j++)
                {
                    if (ar[i, j] % 2 == 1)
                    {
                        if (ar[i, j] < 10)
                            Console.Write(" ");
                        unsum += ar[i, j];
                        Console.Write(ar[i, j] + " ");
                    }
                    else if (ar[i, j] % 9 == 0)
                    {
                        if (ar[i, j] < 10)
                            Console.Write(" ");
                        Console.Write(ar[i, j] + " ");
                    }
                    else
                        Console.Write("   ");
                }
                Console.WriteLine();
            }

            Console.WriteLine("\nSumme Array: {0}\nSumme ungerade Zahlen: {1}", generalsum, unsum);
        }

        static void zwei()
        {
            int[] einar = new int[5];
            int[] zufar = new int[5];
            bool[] verglar = new bool[5];

            Random r = new Random();

            for (int i = 0; i < einar.Length; i++)
            {
                einar[i] = 0;
                while (einar[i] < 10 || einar[i] > 20)
                {
                    einar[i] = Convert.ToInt32(Console.ReadLine());
                    if(einar[i]<10)
                        Console.WriteLine("Zahl ist zu klein!");
                    if(einar[i]>20)
                        Console.WriteLine("Zahl ist zu groß!");
                }

            }

            for (int i = 0; i < zufar.Length; i++)
            {
                zufar[i] = r.Next(10, 20);
            }

            for (int i = 0; i < einar.Length; i++)
            {
                if (zufar[i] > einar[i])
                    verglar[i] = true;
                else
                    verglar[i] = false;
            }

            foreach (bool item in verglar)
            {
                Console.WriteLine(item);
            }
        }

        static void drei()
        {
            int erg = 0;
            int counter = 0;
            int hlp = 0;
            Random r = new Random();

            while (erg < 500)
            {
                Console.WriteLine("Geben Sie eine Zahl größer 500 ein!");
                erg = Convert.ToInt32(Console.ReadLine());
            }

            while(counter<25 && erg!=1)
            {
                hlp = r.Next(1, 10);
                if (erg % hlp == 0)
                {
                    erg = erg / hlp;
                    Console.WriteLine(erg);
                }
                counter++;
            }
        }

        static void vier()
        {
            Random r = new Random();
            int hlp = 0;
            int prod = r.Next(1, 10);

            while(prod<1000)
            {
                hlp = r.Next(1, 10);
                Console.WriteLine(prod+"*"+hlp+"="+(prod*hlp));
                prod *= hlp;
            }
        }

        static void fuenf()
        {
            int[] ar = new int[3];
            for (int i = 0; i < ar.Length; i++)
            {
                ar[i] = i;
            }
            foreach (int item in ar)
            {
                Console.WriteLine(item);
            }
        }
    }
}