ĐA CTDL trong C,cần giúp đỡ!!

[langtutcs]

#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<string.h>
#include<dos.h>
#include<ctype.h>
#include<graphics.h>
#include<stdlib.h>
#include<alloc.h>
//====================================
 
//CHUONG TRINH TAO  VA SO SANH HAI CAY NHI PHAN
 
struct Tree2
    {
      int So;
      Tree2  *Left,*Right;
     };
      typedef Tree2 *PTree2;
      PTree2 Root1,Root2,p;
      int y;
      int nd,nd2,cv,k;
 //==================================
 //ve cay do hoa
 void ve(PTree2 root,int cot,int dong,int i,int j)
    {
         setcolor(14);
         outtextxy(20,20," DAI HOC BACH KHOA DA NANG  ");
         setcolor(10);
         outtextxy(165,130,"Cay I");
         outtextxy(430,130,"Cay II");
          {
             i=2*i/3;
             moveto(cot,dong);
             setcolor(j);
             setfillstyle(SOLID_FILL,j);
             circle(cot,dong,6);
             floodfill(cot,dong+5,j);// i=i/2;
           }
 
              if((*root).Left!=NULL)
                 {
                    line(cot,dong,cot-i,dong+i) ;
                    ve((*root).Left,cot-i,dong+i,i,j);
                  }
             if((*root).Right!=NULL)
                 {
                    line(cot,dong,cot+i,dong+i) ;
                   ve((*root).Right,cot+i,dong+i,i,j);
                 }
      }
 //==================================
 //   dich cay
 void dich_cay()
 {
      void  *buf;
      int x=60,i,z;
      unsigned size;
      size=imagesize(45,144,300,400);
      buf=malloc(size);
      getimage(45,144,300,400,buf);
      putimage(45,144,buf,COPY_PUT);delay(200);
      cleardevice();
      for(i=0;i<124;i++)
      {
            x=x+2;
            z=30;
            putimage(x,144,buf,COPY_PUT);
            ve(Root2,450,150,80,11);
            delay(z);
       }
            free(buf);
  }
 
 //==================================
 //cap phat mot nut la cho cay nhi phan
 PTree2 makenode (int x)
 {
     PTree2 p;
     p= new Tree2;
     (*p).So=x;
     (*p).Left=NULL;
     (*p).Right=NULL;
     return (p);
  }
 //==================================
 //tim mot nut co noi dung x
    PTree2 search(PTree2 root ,int x)
   {
       PTree2 p;
       if((*root).So==x) return (root);
       if(root==NULL) return NULL;
       p=search((*root).Left,x);
       if(p==NULL)
       p=search((*root).Right,x);
       return p;
   }
//Kiem tra 2 cay
int Test(PTree2 Root1,PTree2 Root2)
  {
     if(Root1 != NULL && Root2 != NULL)
     if(Test((*Root1).Left,(*Root2).Left) &&Test((*Root1).Right,(*Root2).Right))return(1);
     else return(0);
       else
             if(Root1==NULL && Root2==NULL)return(1);
             else return(0);
  }
//==================================
 
int ChieuCao(PTree2 Root)
 {
     int trai,phai;
     if (Root==NULL)  return 0;
     else
    {
       trai=ChieuCao((*Root).Left);
       phai=ChieuCao((*Root).Right);
       if(trai>phai) return (trai+1);
       else return (phai+1);
    }
 }
//==================================
 
void VeCay(PTree2 Root,int col,int row,int nhanh)
 {
    int i,x;
    if(Root==Root1 || Root==Root2)
      {
        gotoxy(col,row);
        textcolor(LIGHTCYAN);
        cprintf("%d",(*Root).So);
        textcolor(WHITE);
      }
   else
      {
         gotoxy(col,row);printf("   ");
         gotoxy(col,row);
        textcolor(LIGHTMAGENTA);
        cprintf("%d",(*Root).So);
        textcolor(WHITE);
     }
    x=wherex(); 
    if((*Root).Left != NULL)
        {
          for(i=col-2;i>col-ceil(nhanh/2);i--)
           {
               gotoxy(i,row);
               delay(15);
               printf("%c",196);
             }
           gotoxy(i,row); delay(30); printf("%c",218);
          VeCay((*Root).Left,col-ceil(nhanh/2),row+1,nhanh/2);
         }
   
    else
       {
          for(i=col-2;i>col-ceil(nhanh/2);i--)
           {
              gotoxy(i,row);
              delay(15);
               printf(" ");
             }
          gotoxy(i,row); delay(30); printf(" ");
          gotoxy(i,row+1);printf("   ");
        }
 
   if((*Root).Right!=NULL)
       {
           for(i=x+1;i<col+ceil(nhanh/2);i++)
              {
                   gotoxy(i,row);
                   delay(15);
                   printf("%c",196);
              }
            gotoxy(i,row);
            delay(100);printf("%c",191);
            VeCay((*Root).Right,col+ceil(nhanh/2),row+1,nhanh/2);
         }
   else
         {
            for(i=x+1;i<col+ceil(nhanh/2);i++)
                {
                    gotoxy(i,row);
                   delay(15);
                    printf(" ");
                  }
               gotoxy(i,row);
              delay(100);printf(" ");
              gotoxy(i,row+1);printf("   ");
          }
    }
 
//==================================
 //ham tao cay nhi phan
  void Create(PTree2 &root)
  {   
        PTree2 k,h;
         int nd,nd2,cv;
 
          {
                 gotoxy(2,2);
                 printf(" NHAP NUT GOC:");
                 scanf("%d",&nd); //printf("  ");
                 root=makenode(nd);
                 if (root!=NULL)
 
                 VeCay(root,50,y+2,30); }
 
            do {
                      gotoxy(16,4);printf("   ");
                      gotoxy(15,5);printf("   ");
                      gotoxy(16,3);printf("    ");
                      gotoxy(2,3);
                      printf(" YOUR SECLECT:");
                      scanf("%d",&cv);  //printf("  ");
                      gotoxy(2,6);printf("                  ");
                      gotoxy(2,8);printf("                 ");
                      gotoxy(2,9);printf("                                    ");
                      if(cv>0&&cv<4)
                         {
                             gotoxy(2,4);
                             printf(" Nhap nut cha:");
                             scanf("%d",&nd2);
                             p=search(root,nd2);
                             if (p==NULL)
                               {
                                 gotoxy(2,6);
                                 textcolor(LIGHTGREEN);
                                 printf (" Khong co nut cha");
                                }
                            else if(cv==1)
                                   {
                                       gotoxy(2,5);
                                       printf(" Nhap nut la:");
                                       scanf("%d",&nd);
                                       if((*p).Left!=NULL)
                                          {
                                               k=(*p).Left;
                                               (*p).Left=makenode(nd);
                                                h=(*p).Left;
                                               (*h).Left=(*k).Left;
                                               (*h).Right=(*k).Right;
                                           }
                                     else  if((*p).Left==NULL)
                                       (*p).Left=makenode(nd);
 
                                 }
                         else if(cv==2)
                                  {
                                       gotoxy(2,5);
                                       printf(" Nhap nut la:");
                                       scanf("%d",&nd);  // printf("  ");
                                        if((*p).Right!=NULL)
                                          {
                                              k=(*p).Right;
                                             (*p).Right=makenode(nd);
                                             h=(*p).Right;
                                             (*h).Left=(*k).Left;
                                             (*h).Right=(*k).Right;
                                           }
                                       else if ((*p).Right==NULL)
                                            (*p).Right=makenode(nd);
                                     }
                         else if(cv==3)
                                {
                                    gotoxy(2,5);
                                    printf(" Nhap nut la:");
                                    scanf("%d",&nd);
                                    k=search(root,nd);
                                    if(k==NULL)
                                         {
                                           gotoxy(2,8);
                                           printf(" khong co nut nay");
                                         }
                                    else  if((*k).Left!=NULL||(*k).Right!=NULL)
                                              {
                                                  gotoxy (2,9);
                                                   printf(" %d khong phai nut la khong xoa duoc",(*k).So);
                                               }
                                            else if(k==(*p).Left)
                                                 (*p).Left=NULL;
                                                    else if(k==(*p).Right)
                                                      (*p).Right=NULL;
                                 }
                          }
 
                        VeCay(root,50,y+2,30);
                  }while (cv!=0);
            }
 
 
//==================================
//tao chu chay
void chuchay( int xg , int yg ,int xm , int ym , char xau[] , int time)
 
            // xg , yg   : toa do sinh van ban
            // xm , xm : toa do cuoi cua van ban se di chuyen den
            // time : delay time
 
    {
            int i,j=0;
            if (xg==xm)
            {
                for (j=0 ; j<=strlen(xau) ; j++)
                 {
                     if (xau[j]!=32)
                     for (i=yg ; i>= ym ; i--)
                         {
                           gotoxy(xg,i);putch(xau[j]);
                           gotoxy(xg,i+1);putch(' ');
                           delay(time);
                          }
                      else {
                                  gotoxy(xg,ym);putch(' ');
                               }
                         xg++;
               }
        }
 
    }
//===============================================================
 
       union REGS in,out;
 
       int callmouse()
       {
                  in.x.ax=1;
                  int86(51,&in,&out);
                  return 1;
       }
       void mouseposi(int &xpos,int &ypos)
       {
                  in.x.ax=3;
                  int86(51,&in,&out);
                 // click=out.x.bx;
                  xpos=out.x.cx;
                  ypos=out.x.dx;
            }
       int mousehide()
       {
                  in.x.ax=2;
                  int86(51,&in,&out);
                  return 1;
       }
 
 //===============================================================
 //lay toa do khi click
  int showmousegraphics ()
 {
 
    int x;
    in.x.ax = 1;
    int86 (0X33,&in,&out);
 
    while (!kbhit ())
         {
     in.x.ax = 3;
     int86 (0X33,&in,&out);
     if (out.x.bx == 1)
       {
    x=out.x.dx;
             //printf ("\nLeft || X - %d ", x);
             if(x!=0) goto kt;
       }
   }
   getch ();
   closegraph ();
   kt:return x;
 }
 
 //===============================================================
     int main()
      {
 
                 a2:int x,y,a,b;
                 char chon;
                 clrscr();
                 int g=DETECT,m;
 
                 //clrscr();
                 initgraph(&g,&m,"c:\\tc\\bgi");
                 callmouse();
                 a1:settextstyle(4,HORIZ_DIR,4);
                 outtextxy(230,15,"MENU");
                 settextstyle(3,HORIZ_DIR,2);
                 outtextxy(250,50,"Play");
                 outtextxy(250,80,"Contact");
                 outtextxy(250,110,"View EX");
                 outtextxy(250,140,"Help") ;
                 outtextxy(250,170,"Exit");
                 while(1)
            {
                            mouseposi(x,y);
                            gotoxy(10,9);
                            printf("\n\tX = %3d||Y = %3d",x,y);
 
                          if((y>55)&&(y<75)&&(x>249)&&(x<350))
                               {
                                               
                                                    gotoxy(30,16);printf("Ban Da Chon : Play             ");
                                                    delay(1000);gotoxy(55,16);printf("3");
                                                    delay(1000);gotoxy(55,16);printf("2");
                                                    delay(1000);gotoxy(55,16);printf("1");;
                                                    mouseposi(x,y);
                                                    if((y>55)&&(y<75)&&(x>249)&&(x<350))goto play;
                                                    else goto a1;
 
                                       }
                         else if((y>85)&&(y<100)&&(x>249)&&(x<350))
                               {
                                                           
                                                            gotoxy(30,16);printf("Ban Da Chon : Contact        ");
                                                            delay(1000);gotoxy(55,16);printf("3");
                                                            delay(1000);gotoxy(55,16);printf("2");
                                                            delay(1000);gotoxy(55,16);printf("1");
                                                            mouseposi(x,y);
                                                            if((y>85)&&(y<100)&&(x>249)&&(x<350))goto contact;
                                                    else goto a1;
                                       }
                         else if((y>115)&&(y<135)&&(x>249)&&(x<350))
                               {
                                                           
                                                            gotoxy(30,16);printf("Ban Da Chon : View EX      ");
                                                            delay(1000);gotoxy(55,16);printf("3");
                                                            delay(1000);gotoxy(55,16);printf("2");
                                                            delay(1000);gotoxy(55,16);printf("1");
                                                            mouseposi(x,y);
                                                            if((y>115)&&(y<135)&&(x>249)&&(x<350))goto view;
                                                            else goto a1;
                                       }
                         else if((y>145)&&(y<165)&&(x>249)&&(x<350))
                               {
                                                            gotoxy(30,16); printf("Ban Da Chon : Help                  ");
                                                            gotoxy(30,20);
                                                            printf("* Hay re chuot vao muc muon chon          \n                               (Chu y : Cho vai giay de thuc hien lenh)                       ");
 
                                     }
 
                         else if((y>175)&&(y<195)&&(x>249)&&(x<350))
                               {
                                                           
                                                            gotoxy(30,16);printf("Ban Da Chon : Exit                ");
                                                            delay(1000);gotoxy(55,16);printf("3");
                                                            delay(1000);gotoxy(55,16);printf("2");
                                                            delay(1000);gotoxy(55,16);printf("1");
                                                            mouseposi(x,y);
                                                            if((y>175)&&(y<195)&&(x>249)&&(x<350))
                                                                        {
                                                                          gotoxy(30,20);printf("Ban chon Exit(c/k ?)                               ");
                                                                          chon=getch();
                                                                          if(chon=='c'||chon=='C')goto ketthuc;
                                                                          else if(chon=='k'||chon=='K')goto a1;
                                                                        }
                                                            else goto a1;
                                                }
                 else {gotoxy(30,16);
                          printf("Ban chon : Ban chua chon                           ");
                  }
    }
 
     contact:
   {
             closegraph ();
 
 
              {
       struct time t;
       int i,j;
       j=1;
       struct date d;
       gotoxy(35,4);
       printf("Xin Chao ^_^ ");
       gotoxy(35,5);
       getdate(&d);
       while(i<32000)
             {
              laplai:gotoxy(35,2);
              printf("Ngay:%2d Thang:%2d Nam:%2d\n",d.da_day,d.da_mon,d.da_year);
              gettime(&t);
              gotoxy(35,3);
              printf("%2d:%2d:%2d\n",t.ti_hour,t.ti_min,t.ti_sec);
              delay(1000);
              i++;
              j++;
              if(j%10==0)
                              {
                                                textcolor(2);
                                        chuchay(20,20,20,20,"press B to Back or E to Exit : ",10);
                                        chon=getch();
                                                if(chon=='b'||chon=='B') goto a2;
                                                else if(chon=='e'||chon=='E') goto ketthuc;
                                       }
               else if(j==2) goto tt;
               else goto laplai;
               tt:textcolor(10);
            chuchay(42,16,42,10,"Truong Dai Hoc Bach Khoa Da Nang" , 10);
            chuchay(42,16,42,11,"Lop 06T4",10);
            chuchay(42,16,42,12,"Giang Vien Huong Dan : Phan Thanh Tao",10);
            chuchay(42,16,42,13,"Sinh Vien Thuc Hien  : Dang Van Tuan",10);
            chuchay(42,16,42,14,"                     : Le Minh Long",10);
            textcolor(5);
            chuchay(35,16,35,15,"(Vui long cho vai giay de chuyen cong viec)",2);
             }
              }
            }
 
  view:
  {
             closegraph ();
 
 
            {
       struct time t;
       int i,j;
       j=1;
       struct date d;
       gotoxy(35,4);
       printf("Xin Chao ^_^ ");
       gotoxy(35,5);
       getdate(&d);
       while(i<32000)
       {
              laplai1:gotoxy(35,2);
              printf("Ngay:%2d Thang:%2d Nam:%2d\n",d.da_day,d.da_mon,d.da_year);
              gettime(&t);
              gotoxy(35,3);
              printf("%2d:%2d:%2d\n",t.ti_hour,t.ti_min,t.ti_sec);
              delay(1000);
              i++;
              j++;
              if(j%10==0)
                             {
                                       textcolor(2);
                                        chuchay(20,20,20,20,"press B to Back or E to Exit : ",20);
                                        chon=getch();
                                                if(chon=='b'||chon=='B') goto a2;
                                                else if(chon=='e'||chon=='E')goto ketthuc;
                                     }
              else if(j==2) goto tt1;
              else goto laplai1;
              tt1:textcolor(10);
                  chuchay(15,15,15,15,"Bai Tap : So sanh cau truc hai cay nhi phan",50);
              textcolor(5);
              chuchay(17,17,17,17,"(Vui long cho vai giay de chuyen cong viec)",2);
       }
    }
 }
 
 
    play:
             {
                        //x=0;
                        //y=0;
              closegraph ();
 
              clrscr();
      textcolor(LIGHTRED);
      cprintf("\n\n\n\n            HUONG DAN CACH NHAP CAY NHI PHAN");
     // printf("\n\n");
      textcolor(YELLOW);
     // printf("\n\n");
      gotoxy(7,7);
      cprintf("1. Chon 1 de nhap nut con ben trai");
      gotoxy(7,8);
      cprintf("2. Chon 2 de nhap nut con ben phai");
      gotoxy(7,9);
      cprintf("3. Chon 3 de xoa nut la");
      gotoxy(7,10);
      cprintf("4. Chon 0 de dung nhap");
      textcolor(WHITE);
      gotoxy(7,12);
      cprintf("==> PRESS ANY BUTTON!! ") ;
      getch();
      clrscr();
      Root1=NULL;
      Root2=NULL;
      textcolor(YELLOW);
      gotoxy(2,1);
      cprintf(" NHAP CAY NHI PHAN THU I (seclect: 0,1,2,3)");
      textcolor(WHITE);
      Create(Root1);
      clrscr();
      textcolor(YELLOW);
      gotoxy(2,1);
      cprintf(" NHAP CAY NHI PHAN THU II (seclect: 0,1,2,3)");
      textcolor(WHITE);
      Create(Root2);
      clrscr();
      textcolor(YELLOW);
      if(Test(Root1,Root2))cprintf("\n\n     -->       HAI CAY NHI PHAN CO CAU TRUC TUONG TU NHAU\n");
      else cprintf("\n\n     -->       HAI CAY NHI PHAN CO CAU TRUC KHONG TUONG TU NHAU\n");
      printf("\n Minh hoa -->");
      textcolor(WHITE);
      printf("\n\t\t\t    Cay nhi phan thu nhat\n");
      delay(400);
      y=wherey();  // printf("%d",y); tai vi tri nay y=9
      if(Root1!=NULL)
 
     VeCay(Root1,40,y+1,40);
   else
     {
       gotoxy(38,y+1);
       textcolor(GREEN);
       cprintf("NULL");
       textcolor(WHITE);
     }
   y=y+ChieuCao(Root1)+2;
   gotoxy(1,y+1);
   printf("                            Cay nhi phan thu hai");
   delay(400);
   y+=2 ;
   if(Root2!=NULL)
     VeCay(Root2,40,y+1,40);
   else
     {
       gotoxy(38,y+1);
       textcolor(GREEN);
       cprintf("NULL");
       textcolor(WHITE);
     }
   y=y+ChieuCao(Root2)+3;
   gotoxy(26,y);
   delay(200);
   textcolor(YELLOW);
   cprintf(" PRESS ENTER !! TO CONTINUE ");
   getch();
   int gdriver =DETECT,gmode ;
   initgraph(&gdriver,&gmode,"C:\\TC\\BGI") ;
   ve(Root1,180,150,80,12);
   delay(200);
   ve(Root2,450,150,80,11);
   delay(2500);
   dich_cay();
   outtextxy(200,400,"Press anykey to continue !");
   getch();
 
  closegraph();
        do{
                msg:textcolor(8);
                chuchay(20,20,20,20,"  An E de Exit va B de tro lai MENU",100);//goto nhay;
              msg1:textcolor(10);
              chuchay(20,20,20,20,"  An E de Exit va B de tro lai MENU",100);
              chon=getch();
             }  while((chon!='e')&&(chon!='E')&&(chon!='b')&&(chon!='B'));
                if(chon=='e'||chon=='E') goto ketthuc;
                  else if(chon=='b'||chon=='B') goto a2;
       } getch();
       ketthuc:
       return 0;
}

ai giỏi về đồ hoạ trong C thì giúp mình với, mình chạy nó ko thực hiện đồ hoạ được gì hết,cứ báo lỗi hoài à.mong các pro giúp mình vơi.
cám ơn nhiều!