Billige Türme von Hanoi

hanoi

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

namespace ConsoleApplication1
{
    class Program
    {
        static int[] r1 = new int[4];
        static int[] r2 = new int[4];

        static int[] t1 = new int[4];
        static int[] t2 = new int[4];


        static void show()
        {
            System.Console.WriteLine("");
            for (int i = 0; i < 4; i++)
            {
                if (r2[i] != 0)
                    System.Console.Write(" " + r2[i] + " ");
                else
                    System.Console.Write("   ");
            }
            System.Console.WriteLine("");
            for (int i = 0; i < 4; i++)
            {
                if (r1[i] != 0)
                    System.Console.Write(" " + r1[i] + " ");
                else
                    System.Console.Write(" x ");
            }
            System.Console.WriteLine("");
            System.Console.ReadLine();
        }
        static void Main(string[] args)
        {
            r1[0] = 1;
            r1[1] = 2;
            r1[2] = 3;
            r1[3] = 4;

            r2[0] = 0;
            r2[1] = 0;
            r2[2] = 0;
            r2[3] = 0;

            t1[0] = 4;
            t1[1] = 2;
            t1[2] = 3;
            t1[3] = 1;

            t2[0] = 0;
            t2[1] = 0;
            t2[2] = 0;
            t2[3] = 0;

            solve();
            System.Console.ReadLine();

        }
        static void solve()
        {
            if (fertig())
            {
                System.Console.WriteLine("Fertig");
                show();
                return;
            }

            //can we do a swap

            for (int i = 0; i < 4; i++)
            {
                for (int j = 0; j < 4; j++)
                {
                    if (r1[i] == t1[j] && r1[j] == t1[i])
                    {
                        System.Console.WriteLine("Jo we can swap");
                    }
                }
            }

        }
        static void swap(int i, int j)
        {
            //move i to !j
            int newpos;
            
        }
        static bool fertig()
        {
            for (int i = 0; i < 4; i++)
            {
                if (r1[i] != t1[i])
                    return false;
            }
            for (int i = 0; i < 4; i++)
            {
                if (r2[i] != t2[i])
                    return false;
            }
            return true;
        }
    }
}