Tower Of Hanoi Alogithm Using Recursion.

Tower Of Hanoi Alogithm Using Recursion.

   #include<iostream.h>
   #include<stdio.h>
   #include<conio.h>
   class tower
   {
     int *t1,*t2,*t3;
     int x,y,z;
     public:
     void disp_tower();
     void move_disk(int tx,int ty);
     void toh(int n,int a,int b,int c);
     tower(int no);
     ~tower();
   };
   tower :: tower(int no)
   {
     t1 = new int[no+1];
     t2 = new int[no+1];
     t3 = new int[no+1];
     x = no;
     y = z = 0;
     for(int i=0,j=no ; i     {
       t1[i] = j;
       t2[i] = t2[i] = 0;
     }
     t1[no] = t2[no] = t3[no] = 0;
   }
   tower :: ~tower()
   {
     delete []t1;
     delete []t2;
     delete []t3;
   }
   void tower :: disp_tower()
   {
     clrscr();
     cout<<"
     X :: ";
     for(int i=0;i     {
       cout<<" "<     }
     cout<<"
     Y :: ";
     for(i=0;i     {
       cout<<" "<     }
     cout<<"
     Z :: ";
     for(i=0;i     {
       cout<<" "<     }
     getch();
   }
   void tower :: toh(int n,int tx,int ty,int tz) //x to y using z
   {
     if(n>=1)
     {
       toh(n-1,tx,tz,ty);
       move_disk(tx,ty); //x to y
       disp_tower();
       toh(n-1,tz,ty,tx);
     }
   }
   void tower :: move_disk(int tx,int ty)
   {
     switch(tx)
     {
       case 1:
       {
         if(ty==2)
           t2[y++] = t1[--x];
         else
           t3[z++] = t1[--x];
       }break;
       case 2:
       {
         if(ty==1)
           t1[x++] = t2[--y];
         else
           t3[z++] = t2[--y];
       }break;
       case 3:
       {
         if(ty==1)
           t1[x++] = t3[--z];
         else
           t2[y++] = t3[--z];
       }break;
     }//end of switch
   }