Ilmu Komputer

#include<stdio.h>
#include<conio.h>
#include<iostream.h>
main()
{
char kd_k,nm_k[20],ptgs[20],cst[20],tgl[20];
int hrg,ttl,lm,jmb,kmb;
cout<<"+++++++++++PENGINAPAN+++++++++++"<<endl;
cout<<"Daftar Kode Dan Nama Kamar Penginapan::\n\ti. Kamar A\n\ts. Kamar B\n\tl. Kamar C"<<endl;
cout<<"\nNama Petugas :";gets(ptgs);
cout<<"\nNama Customer :";gets(cst);
cout<<"\nTanggal Chek In :";cin>>tgl;
cout<<"\nMasukan Kode Kamar :";cin>>kd_k;
cout<<"\nLama Menginap :";cin>>lm;
if(kd_k=='i')
{
strcpy(nm_k,"Kamar A");hrg=1000000;
}
else if(kd_k=='s')
{
strcpy(nm_k,"Kamar B");hrg=2000000;
}
else if(kd_k=='m')
{
strcpy(nm_k,"Kamar C");hrg=3000000;
}
else
{
hrg=0;
}
ttl=hrg*lm;
clrscr();
cout<<"+++++++++++PENGINAPAN+++++++++++"<<endl;
cout<<"Daftar Kode Dan Nama Kamar Penginapan::\n\ti. Kamar A\n\ts. Kamar B\n\tl. Kamar C"<<endl;
cout<<"Nama Penginap :"<<cst<<endl;
cout<<"Tanggal Chek In :"<<tgl<<endl;
cout<<"Total Bayar Penginapan :"<<ttl<<endl;
cout<<"\nJumlah Bayar Customer :";cin>>jmb;
kmb=jmb-ttl;
cout<<"Kembalian :"<<kmb<<endl;

getch();
}