using System;

public class Program

{

    public static void Main()

    {

        //ข้อ4

/*      Console.WriteLine("\t\t\t\t\t\tMENU");

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

        Console.WriteLine("\t\t\t\t[1] Bubble Milk Tea \n\t\t\t\t[2] Iced Tea");

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

        Console.WriteLine("How many order do you want : ");

        int order = int.Parse(Console.ReadLine());

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

        int x = 1;

        int total = 0;

        int m1 = 0;

        int m2 = 0;

        while(x<=order){

            Console.WriteLine("Please select menu order {0} : ",x);

            int menu = int.Parse(Console.ReadLine());

            while(menu != 1 && menu != 2 ){

                Console.WriteLine("Please select menu order {0} again : ",x);

                menu = int.Parse(Console.ReadLine());

            }

            switch(menu){

                case 1 : 

                    m1 += 50;

                    break;

                case 2 : 

                    m2 += 40;

                    break;

            }

            x++;

            total = m1 * menu + m2 * menu;

          }

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

        Console.WriteLine("Your {0} Order",order);

        Console.WriteLine("Price = {0:F} Bath",total);

*/

/*

//ข้อ2

        int pen ;

        float pay = 0;

        char mem, con;

        do

        {

            Console.Write("Number of pens : ");

            pen = int.Parse(Console.ReadLine());

                if(pen > 50){

                pay = pen * 7;

            }

            else if(pen >= 21 && pen <= 50){

                pay = pen * 8;

            }

            else if(pen >= 11 && pen <= 20){

                pay = pen * 9;

            }

            else if(pen >= 6 && pen <= 10){

                pay = pen * 10;

            }

            else if(pen <= 5){

                pay = pen * 12; 

            }

            Console.Write("You Member [y/n] : ");

            mem = char.Parse(Console.ReadLine());

            if(mem == 'y'){

                pay = pay - (pay  * 0.15f)  ;        //จำวิธีการหาส่วนลดร้อยละให้ดีๆๆๆๆๆๆๆๆ

            }

        Console.WriteLine("Amount paid is {0:F} Baht",pay);

        Console.Write("do you want to continue [y/n] : ");

        con = char.Parse(Console.ReadLine());

        Console.WriteLine("======================================");

        }while(con == 'y');

*/

​

//ข้อ3

        char member = ' ' ;

        string name = " ";

        int buf = 99;

        int buf_per;

        int water;

        int water_bot = 15;

        int ice;

        int ice_can = 15;

        float dis = 0;

        float total_1 = 0;

        Console.Write("Member Y/N? :");

        member = char.Parse(Console.ReadLine());

        while (member !='y' && member !='n'&&member !='Y' && member !='N')

            member = char.Parse(Console.ReadLine());

        if (member =='y' || member =='Y')

        {

            Console.Write("Enter Member Name :");

            name = Console.ReadLine();

        }

​

        Console.Write("Enter Member of Buffet :");

            buf_per = int.Parse(Console.ReadLine());

        Console.Write("Enter Member of Water :");

            water = int.Parse(Console.ReadLine());

        Console.Write("Enter Member of Ice :");

            ice = int.Parse(Console.ReadLine());

        Console.Clear();

        int total =buf*buf_per+water*water_bot+ice*ice_can;

        if (member =='y' || member =='Y'){

                dis = total*0.10f;

                total_1 = total - dis;  

        }

        Console.WriteLine("Bill");

        if (member =='n' || member =='N')

        {

            Console.WriteLine("Not Member");        

        }

        else if (member =='y' || member =='Y'){

        Console.WriteLine("Name : {0}",name);

        }

        Console.WriteLine("======================================");

        Console.WriteLine("Menu\t\t\t\t Unit Price\t\t\t\t Quantity\t\t Amount");

        Console.WriteLine("======================================");

        Console.WriteLine("Buffer\t\t\t\t\t{0:F}\t\t\t\t\t{1:F}\t\t\t{2:F}",buf,buf_per,buf*buf_per);

        Console.WriteLine("Water\t\t\t\t\t{0:F}\t\t\t\t\t{1:F}\t\t\t{2:F}",water_bot,water,water*water_bot);

        Console.WriteLine("Ice\t\t\t\t\t\t{0:F}\t\t\t\t\t{1:F}\t\t\t{2:F}",ice_can,ice,ice*ice_can);

        Console.WriteLine("======================================");

        Console.WriteLine("Total\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t{0:F}",total);

        Console.WriteLine("Discount\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t{0:F}",dis);

        if (member =='y' || member =='Y')

            Console.WriteLine("Total\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t{0:F}",total_1);

        if (member =='n' || member =='N')

            Console.WriteLine("Total\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t{0:F}",total);

    }

}