using System;

public class Program

{

    public static void Exo1()

    {

        int[] tab = new int[6] {5,8,3,2,6,4};

            foreach ( int element in tab )

            {

                Console.WriteLine (element);

            }

    }

    public static void Exo2()

    {

        int[] tab = new int[6] {5,8,3,2,6,4};

        for (int index = 0 ; index < tab.Length -1 ; index ++)

        {

            Console.Write(tab[index] + " ; ");

        }

            Console.Write(tab.Length -1);

    }

    public static void Exo3()

    {

        int[] tab = new int[6] {5,8,3,2,6,4};

        for (int index = tab.Length -1; index >= 0 ; index --)

        {

            Console.Write(tab[index] + " ");

        }

    }

    public static void Exo4()

    {

        int[] tab = new int[6] {5,8,3,2,6,4};

        for (int index = 0 ; index<tab.Length ; index++)

        {

            double pair = index %2;

            if (pair ==0)

            {

                    Console.Write(tab[index] + " ");

            }

            else

            {

            }

        }

    }

    public static void Exo5()

    {

        int[] tab = new int[6] {5,8,3,2,6,4};

        for (int index = 0 ; index<tab.Length ; index++)

        {

            double pair = tab[index] %2;

            if (pair ==0)

            {

                    Console.Write(tab[index] + " ");

            }

            else

            {

            }

        }

    }

    public static void Exo6()

    {

        Console.WriteLine("Saisir la taille du tableau voulu");

        int a = Convert.ToInt32(Console.ReadLine());

        int []tab = new int [a];

        int u = a;

        for ( int i = 0 ; i < a ; i++)

        {

            tab[i] = u;

            u--;

            Console.Write (tab[i] + " " );

        }

    }

    public static void Exo7()

    {

        Console.WriteLine("Taille du tableau ?");

        int a = Convert.ToInt32(Console.ReadLine());

        int []tab = new int [a];

        int u = 2;

        for (int i = 0 ; i < a ; i++)

        {

            tab[i] = u ;

            u = u + 2 ;

            Console.Write ( tab[i] + " ");

        }

    }

    public static void Exo8()

    {

        Console.WriteLine("Taille du tableau ?");

        int a = Convert.ToInt32(Console.ReadLine());

        int []tab = new int [a];

        int u = 2 ;

        for (int i = 0 ; i < a ; i++)

        {

            tab [i] = u ;

            u = 2*u ;

            Console.Write(tab [i] + " ");

        }

    }

    public static void Exo9()

    {

        int taille = 0;

        do

        {

         Console.WriteLine("Saisir une taille entre 2 et 5");

         taille = Convert.ToInt32(Console.ReadLine());

        } while ( taille < 2 || taille > 5 );

        double[]tab = new double [taille];

        double s = 0;

        for ( int index = 0 ; index < tab.Length ; index++)

        {

            Console.WriteLine ("Saisir un nombre");

            double a = Convert.ToDouble(Console.ReadLine());

            s = s + a;      

        }

        double moyenne = (s)/(taille);

        Console.WriteLine("La moyenne est : " + moyenne);

    }

    public static void Exo10()

    {

        int[] tab = {1 , 23 , 45 , 6 , 7};

        for (int i = 0 ; i < tab.Length ; i ++)

        {

            Console.WriteLine("----");

            if (tab[i]<10)

            {

                Console.WriteLine( "|0" + tab[i] + "|");

            }

            else

            {

                Console.WriteLine( "|" + tab[i] + "|");

            }

        }

        Console.WriteLine("----");  

    }

    public static void Exo11()

    {

        int [] tab = {1,23,45,6,7};

        Console.WriteLine("--------------------");

        for ( int i = 0 ; i < tab.Length ; i++)

        {

            if (tab[i]<10)

            {

                Console.Write("|0" + tab [i] + "|");

            }

            else

            {

                Console.Write("|" + tab [i] + "|");

            }

        }

        Console.WriteLine(" ");

        Console.WriteLine("--------------------");  

    }

    public static void Main()

    {

        //Exo1();

        //Exo2();

        //Exo3();

        //Exo4();

        //Exo5();

        //Exo6();

        //Exo7();

        //Exo8();

        //Exo9();

        //Exo10();

        Exo11();

    }

}