C++ Programming

# include <conio.h>
# include <iostream.h>
# include <stdio.h>
main()
{
int pil,s,p,l,a,t,LP,LPP;
float LS;
char ulang;

clrscr();

do{
cout <<"\n******************************";
cout <<"\n* PROGRAM PERHITUNGAN LUAS *";
cout <<"\n******************************";
cout <<"\n";
cout <<"\n1.Luas Persegi";
cout <<"\n2.Luas Persegi Panjang";
cout <<"\n3.Luas Segitiga";
cout <<"\n4.Exit";
cout <<"\n";
cout <<"\nMasukkan pilihan Anda ! : "; cin >>pil;

switch(pil){

case 1:
clrscr();
cout <<"\n==============================";
cout <<"\n= Perhitungan Luas Persegi =";
cout <<"\n==============================";
cout <<"\n";
cout <<"\nMasukkan sisi ! = "; cin >>s;

LP=s*s;

cout <<"\nLuas Persegi = " <<LP;
cout <<"\n\n\n";
break; /*break, berfungsi untuk keluar dari struktur switch*/

case 2:
clrscr();
cout <<"\n======================================";
cout <<"\n= Perhitungan Luas Persegi Panjang =";
cout <<"\n======================================";
cout <<"\n";
cout <<"\nMasukkan panjang ! = "; cin >>p;
cout <<"\nMasukkan lebar ! = "; cin >>l;

LPP=p*l;

cout <<"\nLuas Persegi Panjang = " <<LPP;
cout <<"\n\n\n";
break;

case 3:
clrscr();
cout <<"\n===============================";
cout <<"\n= Perhitungan Luas Segitiga =";
cout <<"\n===============================";
cout <<"\n";
cout <<"\nMasukkan alas ! = "; cin >>a;
cout <<"Masukkan tinggi ! = "; cin >>t;

LS=0.5*a*t;

cout <<"\nLuas Segitiga = " <<LS;
cout <<"\n\n\n";
break;

case 4:
clrscr();
break;

}
cout <<"Apakah Anda ingin mengulang ? [Y/T] : ";
cin >>ulang;
}
while(ulang=='Y'||ulang=='y');

cout <<"\2\2\2 TERIMA KASIH \2\2\2";
getch();

}