Coding PBO_ Menghitung Tinggi badan dan Luas Lingkaran

#include <iostream.h>
#include <conio.h>

void main()
{    int kode; //tampilan utama
cout<<"|*****************************************|"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"| Nama  : Khoirul As Ari                  |"<<endl;
cout<<"| Nim   : 120103119                       |"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"|          PROGRAM PERHITUNGAN            |"<<endl;
cout<<"|=========================================|"<<endl;
cout<<"|             PILIHAN KODE                |"<<endl;
cout<<"|=========================================|"<<endl;
cout<<"|1. Menghitung luas lingkaran             |"<<endl;
cout<<"|2. Menghitung ukuran tinggi badan        |"<<endl;
cout<<"|=========================================|"<<endl;
cout<<"MASUKKAN PILIHAN ANDA :";cin>>kode; //pemasukan kode
 if (kode==1)
 {
   clrscr();
   float j,luas; //penghitungan luas lingkaran
cout<<"|*****************************************|"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"| Nama  : Khoirul As Ari                  |"<<endl;
cout<<"| Nim   : 120103119                       |"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"|       MENGHITUNG LUAS LINGKARAN         |"<<endl;
cout<<"|=========================================|"<<endl;
cout<<"MASUKKAN JARI-JARI :";cin>>j;
   luas=3.14*j*j;
   cout<<luas;
 }
 else if (kode==2)
 {
     clrscr();
   int u;   //penentuan ukuran badan
cout<<"|*****************************************|"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"| Nama  : Khoirul As Ari                  |"<<endl;
cout<<"| Nim   : 120103119                       |"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"|*****************************************|"<<endl;
cout<<"|        MENENTUKAN UKURAN BADAN ANDA     |"<<endl;
cout<<"|=========================================|"<<endl;
cout<<"MASUKKAN UKURAN BADAN ANDA :";cin>>u;
   if (u>=180)
   {
   cout<<"ANDA MEMILIKI UKURAN BADAN YANG TINGGI";
   }
   else if (u>=155&&u<=179)
   {
   cout<<"ANDA MEMILIKI UKURAN BADAN YANG SEDANG";
   }
   else if (u<155)
   {
   cout<<"ANDA MEMILIKI UKURAN BADAN YANG RENDAH";
   }
}
else    //jika kode yang dimasukkan salah
    {
    cout<<"\nMaaf kode yang anda masukkan salah..!!"<<endl<<endl;
    }
 getch();
 }