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

namespace C__lesson_classes
{
    class Gun
    {
        private bool isLoaded = true;
        private void Reloaded()
        {
            Console.WriteLine("O'qlanmoqda...");
            isLoaded = false;
            Console.WriteLine("O'qlanyapdi!");
        }
        public void Shoot()
        {
            if ( !isLoaded )
            {
                Console.WriteLine("Qurol o'qlanmagan!");
                Reloaded();
            }
            if ( isLoaded )
            {
                Console.WriteLine("Hujumga O'q uz...");
                Console.Write("Bummm...Bummm...");
                isLoaded= false;
            }
        }
    }

    internal class Program
    {
        static void Main( string[] args )
        {
            Gun gun = new Gun();
            gun.Shoot();


            Console.WriteLine( "Ixtiyoriy tugmani bosing ... \n" );
            
            Console.ReadKey( true );
        }
    }
}

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

using System;

namespace C__lesson_classes
{
    class hayvon
    {
        public int leg;//maydon
        public int hand;
        public string name;

        public hayvon(int oyoq ) { leg = oyoq;} // 1- konstruktor // oyoq => qiymat
        public hayvon(int oyoq, int qol ) { leg = oyoq; hand =  qol;} // 2-konstruktor
        public hayvon(int oyoq , int qol , string ism ) // 3-konstruktor
        {
            leg = oyoq; hand = qol; name = ism;
        }
        public void GetInfo()
        {
            if ( hand == 0 && name == null )
            {
                Console.WriteLine($"Oyoqlar soni: {leg}");
            } else if (name == null )
            {
                Console.WriteLine( $"Oyoqlari soni: {leg} Qollari soni : {hand}" );
            } else
            {
                Console.WriteLine( $"Ism: {name} Oyoqlari soni: {leg} Qollari soni : {hand}" );
            }        }
    }

    internal class Program
    {
        static void Main( string[] args )
        {
            hayvon tovuq = new hayvon (2);
            hayvon odam = new hayvon (2,3);
            hayvon Inson = new hayvon (2,2,"Dilshod");

            tovuq.GetInfo();
            odam.GetInfo();
            Inson.GetInfo();

            Console.WriteLine("Ixtiyoriy tugmani bosing ... ");
            Console.ReadKey(true);
        }
    }
}

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

namespace C__lesson_classes
{
    class Person
    {
        public string name;
        public int age;

        public Person() { name = "Nomalum"; age = 18; }      // 1-konstruktor

        public Person( string n ) { name = n; age = 18; }         // 2 -konstruktor

        public Person( string n , int a ) { name = n; age = a; }   // 3 -konstruktor

        public void GetInfo()
        {
            Console.WriteLine( $"Name: {name}  Age: {age}" );
        }
    }
    internal class Program // asosiy sinf 
    {
        static void Main( string[] args )
        {
            Person Ali = new Person();              // 1-konstruktor chaqirilyapdi
            Person Vali = new Person( "Vali" );          //2-konstruktor chaqirilyapdi 
            Person Gani = new Person( "G’ani" , 25 );   // 3-konstruktor chaqirilyapdi 


            Ali.GetInfo();             // Name: Nomalum  Age: 18
            Vali.GetInfo();           // Name: Vali  Age: 18
            Gani.GetInfo();          // Name: G’ani  Age: 25

            Console.WriteLine( "Ixtiyoriy tugmani bosing ... " );
            Console.ReadKey( true );
        }
    }
}

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

namespace C__lesson_classes
{
    class Xizmatchi
    {
        private string Xiz_Nom;
        // Konstruktor public atributiga ega bo'lishi lozim
        public Xizmatchi(string Nom )
        {
            Xiz_Nom = Nom;
        }
        // Sinfning metodi
        public string GetNom()
        {
            return Xiz_Nom;
        }

        public int SetNom( string Nom )
        {
            if(Nom.Length > 9) 
            { 
                Console.WriteLine("Xato Uzunligi " + " 9 tadan oshib ketdi = {0}",Nom);
                return 0;
            } else
            {
                Xiz_Nom = Nom;
                return 1;
            }

        }
    }
    internal class Program // asosiy sinf 
    {
        static void Main( string[] args )
        {
            // Sinf obyektini yaratamiz
            Xizmatchi Xizmat = new Xizmatchi("Sobirov I.I.");
            string s = Xizmat.GetNom();
            Console.WriteLine("Nom maydoni = {0}",s);
            Console.WriteLine("Davom etish uchun <Enter> ni bosing");
            // Nom maydoni qiymatini o'zgartirish
            if(Xizmat.SetNom("Odilov I.B.") == 0)
                Xizmat.SetNom("Odilov I.");

            s = Xizmat.GetNom();
            Console.WriteLine( "Nom maydoni = {0}" , s );
            Console.WriteLine( "Davom etish uchun <Enter> ni bosing" );

            Console.WriteLine( "Ixtiyoriy tugmani bosing ..." );
            Console.ReadKey( true );
        }
    }
}

using System;

class Program
{
    static double ConvertToMeter(double length, int unit)
    {
        switch (unit)
        {
            case 1:
                return length / 10.0; // 1 desimetr = 0.1 metr
            case 2:
                return length * 1000.0; // 1 kilometr = 1000 metr
            case 3:
                return length; // 1 metr = 1 metr
            case 4:
                return length / 1000.0; // 1 millimetr = 0.001 metr
            case 5:
                return length / 100.0; // 1 santimetr = 0.01 metr
            default:
                Console.WriteLine("Noto'g'ri uzunlik birligi kiritildi!");
                return 0.0;
        }
    }
    
    static void Main(string[] args)
    {
        Console.Write("Uzunlik birligini (1-desimetr, 2-kilometr, 3-metr, 4-millimetr, 5-santimetr): ");
        int unit = int.Parse(Console.ReadLine());

        Console.Write("Kesmaning uzunligi: ");
        double length = double.Parse(Console.ReadLine());

        double result = ConvertToMeter(length, unit);
        Console.WriteLine($"Natija: {result} metr");
    }
}

using System;

class Program
{
    public static double Factorial(double n)
    {
        if(n == 0)
        {
            return 1;
        }
        else
        {
            return n * Factorial(n - 1);
        }
    }

    public static double Daraja(double x, double n)
    {
        if(n == 1)
        {
            return x;
        }
        else
        {
            return x * Daraja(x, n - 1);
        }
    }

    public static double Yigindi(double x, double n)
    {
        return Daraja(x, n) / Factorial(n);
    }

    public static void Main()
    {
        double x, n;

        Console.WriteLine("x = ");
        x = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("n = ");
        n = Convert.ToDouble(Console.ReadLine());
        
        if( x == 0 && n == 0){
            Console.WriteLine("Natija = 0");
        } else if ( x == 1 && n == 0){
            Console.WriteLine("Natija = 1");
        } else {
            Console.WriteLine("Natija = " + Yigindi(x, n));
        }
        
    }
}