using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var source = new int[] { -5, 12, 1, 0, 6, -8, 7 };

        int a = Method1(source);

        int b = Method2(source);

        Console.WriteLine(a);

        Console.WriteLine(b);

    }

    public static int Method1(int[] table) 

    { 

        int result = 0; 

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

        { 

            for (int j = 0; j < table.Length; j++) 

            { 

                int val1 = table[i]; 

                int val2 = table[j]; 

                int diff = Math.Abs(val1 - val2); 

                if (diff > result) 

                { 

                    result = diff; 

                } 

            } 

        } 

        return result; 

    }

     public static int Method2(int[] table) 

     { 

         int min = int.MaxValue; 

         int max = int.MinValue; 

​

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

         { 

             int v = table[i]; 

             if (v < min) 

             {

                 min = v; 

             } 

             if (v > max) 

             { 

                 max = v; 

             } 

         } 

         return Math.Abs(max - min); 

    } 

}