1)
C++
#include "stdafx.h"
#include "iostream"
using namespace std;


int main()
{
	int x[10];
	int a = 0;
	for (int i = 1;i <= 10;i++)
	{
		if (i % 2 == 0)
		{
			x[a] = i;
			a++;
		}
	}
	for (int j = 0;j < a;j++)
	{
		cout << x[j] <<endl;
	}
	system("pause");
    return 0;
}

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

namespace Zad1_Csharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] x = new int[10];
            int a = 0;
            for(int i=1; i<=10;i++)
            {
                if(i%2==0)
                {
                    x[a] = i;
                    a++;
                }
            }
            for(int j=0; j<a;j++)
            {
                Console.WriteLine(x[j]);
            }
            Console.ReadKey();
        }
    }
}

3)
C++
#include "stdafx.h"
#include "iostream"
#include "fstream"
#include "string"
using namespace std;


int main()
{
	string x[5];
	x[0] = "Osnove programiranja";
	x[1] = "Racunalni engleski 1";
	x[2] = "Matematika";
	x[3] = "Uvod u ICT";
	x[4] = "Algoritmi i strukture podataka";
	ofstream oDat;
	oDat.open("D:\\Games\\Kolegiji_polje.txt");
	for (int i = 0; i < 5;i++)
	{
		oDat << x[i] << endl;
	}
	oDat.close();
    return 0;
}

C#
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace Zad3_Csharp
{
    class Program
    {
        static void Main(string[] args)
        {
            string [] x = new string[5];
            x[0] = "Osnove programiranja";
            x[1] = "Racunalni engleski 1";
            x[2] = "Matematika";
            x[3] = "Uvod u ICT";
            x[4] = "Algoritmi i strukture podataka";
            string path = @"D:\Games\Kolegiji_polje2.txt";
            StreamWriter oDat = new StreamWriter(path, true);
            for (int i = 0; i < 5; i++)
            {
                oDat.WriteLine(x[i]);
            }
            oDat.Flush();
            oDat.Close();
        }
    }
}


4)
C++
#include "stdafx.h"
#include "iostream"
using namespace std;

int main()
{
	int brojevi[10];
	for (int i = 0; i < 10;i++)
	{
		cin >> brojevi[i];
	}
	for (int j = 0; j < 10;j++)
	{
		if (j % 2 != 0)
		{
			cout << brojevi[j] << endl;
		}
	}
	system("pause");
    return 0;
}

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

namespace Zad4_Csharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] brojevi = new int[10];
            for(int i=0; i<10;i++)
            {
                brojevi[i] = Convert.ToInt32(Console.ReadLine());
            }
            for (int j = 0; j < 10; j++)
            {
                if (j % 2 != 0)
                {
                    Console.WriteLine(brojevi[j]);
                }
            }
            Console.ReadKey();
        }
    }
}

7)
C#
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Zad7_Csharp
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> x = new List<string>();
            x.Add("B");
            x.Add("C");
            x.Add("A");
            x.Sort();
            foreach (string value in x)
            {
                Console.WriteLine(value);
            }
            Console.ReadKey();
        }
    }
}

8)
C++
#include "stdafx.h"
#include "iostream"
#include "vector"
#include "string"
#include "fstream"
using namespace std;

int main()
{
	vector<string> x;
	x.push_back("Osnove programiranja");
	x.push_back("Racunalni engleski 1");
	x.push_back("Matematika");
	x.push_back("Uvod u ICT");
	x.push_back("Algoritmi i strukture podataka");
	ofstream oDat;
	oDat.open("D:\\Games\\Kolegiji_vektor.txt");
	for (int i = 0; i < x.size();i++)
	{
		oDat << x[i] << endl;
	}
	oDat.close();
    return 0;
}