using System;

public class Program

{

    public static void Main()

    {

        Console.Clear(); 

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

        Console.WriteLine("A : หาผลรวมของเลข 5 เลข");

        Console.WriteLine("B : แสดงพีระมิด (ขนาดตามที่กรอก)");

        Console.WriteLine("C : แสดงพีระมิดกลับหัว (ขนาดตามที่กรอก)");

        Console.WriteLine("D : หาค่ามากที่สุด 5 ค่า");

        Console.WriteLine("E : หาค่าน้อยที่สุด 5 ค่า");

        Console.WriteLine("X : จบโปรแกรม");

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

        Console.Write("Select Program : ");

        string menu = Console.ReadLine();

        if(menu == 'A'.ToString()){

            number();

        }

        else if(menu == 'B'.ToString()){

            pyramid1();

        }

        else if(menu == 'C'.ToString()){

            pyramid2();

        }

        else if(menu == 'D'.ToString()){

            Max();

        }

        else if(menu == 'E'.ToString()){

            Min();

        }

        else {

            Console.Clear(); 

            Console.WriteLine("End Program");

            Console.WriteLine("Go Home Good Bye");

        }

    }

    public static void number()

    {   

        Console.Clear(); 

        int[] array = new int[5];

        for (int i =0; i < array.Length; i++)

        { 

        array[i] = int.Parse(Console.ReadLine());

        }

        int sum = 0;

        foreach(int num in array)

        sum += num;

        Console.WriteLine("Score Sum : {0}" ,sum);

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

        Console.Write("กลับสู่เมนูหลักหรือไม่ Y or N");

        string back = Console.ReadLine();

        if(back == 'Y'.ToString()){

        Main();

        }

        else {

            End();

        }

    }

    public static void pyramid1()

    {

        Console.Clear(); 

        int number , space , i ,j;

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

        int.TryParse(Console.ReadLine(), out number);

        for(i = 1; i<= number; i++)

        {

        for (space = 1; space <= number-i ; space++)

            Console.Write(" ");

            for(j =1; j<= i; j++)

                Console.Write("1");

            for(j = i-1; j >= 1; j--)

                Console.Write("1");

            Console.WriteLine();

        }

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

            Console.Write("กลับสู่เมนูหลักหรือไม่ Y or N");

            string back = Console.ReadLine();

            if(back == 'Y'.ToString()){

            Main();

            }

            else {

            End();

        }

    }

    public static void pyramid2(){

        Console.Clear(); 

        int number , space , i ,j;

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

        int.TryParse(Console.ReadLine(), out number);

        for(i = 1; i<= number; i++)

        {

        for (space = 1; space <= i; space++)

            Console.Write(" ");

            for(j =1; j<= number - i; j++)

                Console.Write("1");

            for(j = 0; j <= number - i; j++)

                Console.Write("1");

            Console.WriteLine();

        }

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

            Console.Write("กลับสู่เมนูหลักหรือไม่ Y or N");

            string back = Console.ReadLine();

            if(back == 'Y'.ToString()){

            Main();

        }

        else {

            End();

        }

}

    public static void Max()

    {   

        Console.Clear();

        int a;

        int[] array = new int[5];

        for (int i =0; i < array.Length; i++)

        { 

        array[i] = int.Parse(Console.ReadLine());

        }

        int max = 0;

        for(int i=0; i < array.Length; i++)

        {

            a = array[i] ;

            if ( a > max)

                max = a ;

        }

        Console.WriteLine("Score max : {0}" ,max); 

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

        Console.Write("กลับสู่เมนูหลักหรือไม่ Y or N");

        string back = Console.ReadLine();

        if(back == 'Y'.ToString()){

        Main();

        }

        else {

            End();

        }

    }

    public static void Min()

    {   

        Console.Clear();

        int a;

        int[] array = new int[5];

        for (int i =0; i < array.Length; i++)

        { 

        array[i] = int.Parse(Console.ReadLine());

        }

        int min = array[0];

        for(int i=0; i < array.Length; i++)

        {

            a = array[i] ;

            if ( a < min)

                min = a ;

        }

        Console.WriteLine("Score min : {0}" ,min); 

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

        Console.Write("กลับสู่เมนูหลักหรือไม่ Y or N");

        string back = Console.ReadLine();

        if(back == 'Y'.ToString()){

        Main();

        }

        else {

            End();

        }

    }

    public static void End()

    {

        Console.Clear(); 

        Console.WriteLine("End Program");

        Console.WriteLine("Go Home Good Bye");

    }

}