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

namespace randomgen
{
    class Vrednost
    {
        public int z;
        public float sr;

        public Vrednost()
        {
            z = 0;
            sr = 0;
        }

        public int zbir(int[] niz, int br_cl)
        {
            for (int i = 0; i <= br_cl - 1; i++)
            {
                z += niz[i];
            }
            return z;
        }


        public float srednja(int[] niz, int br_cl)
        {
            for (int i = 0; i <= br_cl - 1; i++)
            {
                z += niz[i];
                sr = z / br_cl;
            }



            return sr;


        }
    }

}


/// FORM



using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace randomgen
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();



        }

        private void button1_Click(object sender, EventArgs e)
        {

           listBox1.Items.Clear();

            if (this.textBox1.Text != "")
            {
                int i = 0;

                Int32.TryParse(textBox1.Text, out i);

                Random rnd = new Random();

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

                    listBox1.Items.Add(rnd.Next(i + 1).ToString());


            }



            int r;
             int zb;



            Vrednost suma = new Vrednost();

            r = listBox1.Items.Count;




            int[] brojevi = new int[r];


            for (int i = 0; i < r; i++)
            {
                brojevi[i] = Convert.ToInt32(listBox1.Items[i].ToString());
            }

            zb = suma.zbir(brojevi, r);

            label8.Text = zb.ToString();

            float srednjavred;


            Vrednost srednja = new Vrednost();

            srednjavred = srednja.srednja(brojevi, r);

            label7.Text = srednjavred.ToString();

            label5.Text = brojevi.Max().ToString();
            label6.Text = brojevi.Min().ToString();




        }



    }

}