roz_2

using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Diagnostics.CodeAnalysis;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Security.Cryptography.X509Certificates;
using static System.Net.Mime.MediaTypeNames;

namespace ZadaniaNaCwiczenia
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Cw2_1();
            //Cw2_2();
            //Cw2_3();
            //Cw2_4();
            //Cw2_5();
            //Cw2_6();
            //Cw2_7();
            //Cw2_8();
            //Cw2_9();
            //Cw2_10();
          
        }
        public static void Cw2_1()
        {
            double C, F;
            Console.WriteLine("Podaj temperature w stopniach Fahrenheita");
            F = double.Parse(Console.ReadLine());
            C = 5 / 9d * (F - 32);
            Console.WriteLine(C);
        }
        public static void Cw2_2()
        {
            Console.WriteLine("podaj liczbe a");
            var a = double.Parse(Console.ReadLine());
            Console.WriteLine("podaj liczbe b");
            var b = double.Parse(Console.ReadLine());
            Console.WriteLine("podaj liczbe c");
            var c = double.Parse(Console.ReadLine());
            double delta = (b * b) - 4 * a * c;
            Console.WriteLine("Wynik Delty: " + delta);
        }
        public static void Cw2_3()
        {
            Console.WriteLine("Podaj wage w kg:");
            var waga = double.Parse(Console.ReadLine());
            Console.WriteLine("Podaj wzrost w metrach: ");
            var wzrost = double.Parse(Console.ReadLine());
            double BMI = waga / (wzrost * wzrost);
            Console.WriteLine("Twoje BMI wynosi: " + BMI);
            if (BMI < 18.5)
            {
                Console.WriteLine("NIEDOWAGA");
            }
            else if (BMI > 18.5 && BMI < 24.99)
            {
                Console.WriteLine("PRAWIDLOWA WAGA");
            }
            else
            {
                Console.WriteLine("NADWAGA");
            }
        }
        public static void Cw2_4()
        {
            int X = 100;
            Console.WriteLine(++X * 2);//202;-)

        }
        public static void Cw2_5()
        {
            int x = 2, y = 3;
            Console.WriteLine(x *= y * 2);
        }
        public static void Cw2_6()
        {
            int x, y = 4;
            x = (y -= 2);
            x = y++;
            x = y--;
        }
        public static void Cw2_7()
        {
            int x, y = 5;
            x = ++y * 2;
            x = y++;
            x = y--;
            Console.WriteLine(++y);
        }
        public static void Cw2_8()
        {
            bool x;
            int y = 1;
            int z = 1;
            x = (y == 1 && z++ == 1);
            Console.WriteLine(x);//True
            Console.WriteLine(y);//1
            Console.WriteLine(z);//2
        }
        public static void Cw2_9()
        {  //a
            int x = 1, y = 4, z = 2;
            bool wynik1 = (x++ > 1 && y++ == 4 && z-- > 0);
            Console.WriteLine("wynik={0} x={1} y={2} z={3}", wynik1, x, y, z);
            //b
            bool wynik2 = (x++ > 1 & y++ == 4 && z-- > 0);
            Console.WriteLine("wynik={0} x={1} y={2} z={3}", wynik2, x, y, z);
            //c
            bool wynik3 = (x++ > 1 & y++ == 4 & z-- > 0);
            Console.WriteLine("wynik={0} x={1} y={2} z={3}", wynik3, x, y, z);
            //d
            bool wynik4 = (x++ > 1 || y++ == 4 || z-- > 0);
            Console.WriteLine("wynik={0} x={1} y={2} z={3}", wynik4, x, y, z);
            //e
            bool wynik5 = (x++ > 1 | y++ == 4 || z-- > 0);
            Console.WriteLine("wynik={0} x={1} y={2} z={3}", wynik5, x, y, z);
            //f
            bool wynik6 = (x++ > 1 | y++ == 4 | z-- > 0);
            Console.WriteLine("wynik={0} x={1} y={2} z={3}", wynik6, x, y, z);

        }
        public static void Cw2_10()
        {
            int powierzchnia = 100;
            int osoby = 10;
            double gestoscZaludnienia = (double)osoby / powierzchnia;
            Console.WriteLine(gestoscZaludnienia);
        }
        
}