Contoh pemograman sederhana C++ dengan Methode Fungsi

#include "iostream.h"
double discount(double harga);
void main(){
    double hrg;
    cout<<"Metode sederhana C++ dengan Fungsi\n" ;
    cout<<"__________________________________\n" ;
    cout<<"Total harga : " ;
    cin>>hrg;
    cout<<"Diskon : "<<discount(hrg);

}
double discount(double harga){
    double disc;
        if(harga>=2000000)disc=0.1*harga;
        else if(harga>=1000000)disc=0.05*harga;
        else disc=0;
        return(disc);
    }