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Program Diskon Dengan Fungsi
/*PROGRAM DISCOUNT DENGAN FUNGSI*/
#include<conio.h>
#include<iostream.h>
#pragma argsused
double price;
double discount(double rp)
{
double disc=rp*20/100;
price=rp-disc;
cout<<"Discount : Rp "<<disc<<endl;
cout<<"Harga setelah discount : Rp "<<price<<endl;
}
double sisauang(double pay)
{
double sisa=pay-price;
cout<<"Sisa uang : Rp "<<sisa<<endl;
}
int main()
{
double rp,pay;
cout<<"PROGRAM DISKON"<<endl;
cout<<"=============="<<endl;
cout<<endl;
cout<<"***********************************************"<<endl;
cout<<"*Diskon 20% untuk pembelian Rp100.000 keatas !*"<<endl;
cout<<"***********************************************"<<endl;
cout<<endl;
cout<<"-----------------------------------------------"<<endl;
cout<<"Masukkan harga barang : Rp "; cin>>rp;
cout<<"Jumlah nominal yang dibayar : Rp "; cin>>pay;
cout<<endl;
cout<<"-----------------------------------------------"<<endl;
cout<<endl;
if(pay>=rp)
{
if(rp>=100000)
{
discount(rp);
}
else
{
cout<<"Discount : Rp 0"<<endl;
price=rp;
}
sisauang(pay);
}
else
{
cout<<"MAAF UANG ANDA TIDAK CUKUP !"<<endl;
}
cout<<endl;
cout<<"***"<<endl;
getch();
}