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#include <string>
#include <list>
using namespace std;
struct Barang {
string nama_barang;
double harga;
double diskon;
int jumlah;
};
class Penjualan {
public:
list<Barang> data_penjualan;
void tambah_simpul(string nama_barang, double harga, double diskon, int jumlah) {
Barang barang = {nama_barang, harga, diskon, jumlah};
data_penjualan.push_back(barang);
data_penjualan.sort([](const Barang &a, const Barang &b) {
return a.nama_barang < b.nama_barang;
});
}
void hapus_diskon_nol() {
data_penjualan.remove_if([](const Barang &barang) {
return barang.diskon == 0;
});
}
double rata_rata_harga() {
double total_harga = 0;
int count = 0;
for (const Barang &barang : data_penjualan) {
total_harga += (barang.harga - (barang.diskon / 100) * barang.harga) * barang.jumlah;
count++;
}
return count > 0 ? total_harga / count : 0;
}
void tampilkan_data_diatas_rata_rata() {
double rata_rata = rata_rata_harga();
for (const Barang &barang : data_penjualan) {
double total_harga = (barang.harga - (barang.diskon / 100) * barang.harga) * barang.jumlah;
if (total_harga > rata_rata) {
cout << "Nama Barang: " << barang.nama_barang << ", Harga: " << barang.harga << ", Diskon: " << barang.diskon << ", Jumlah: " << barang.jumlah << endl;
}
}
}
double total_harga() {
double total_harga = 0;
for (const Barang &barang : data_penjualan) {
total_harga += (barang.harga - (barang.diskon / 100) * barang.harga) * barang.jumlah;
}
return total_harga;
}
};
int main() {
Penjualan penjualan;
penjualan.tambah_simpul("Barang A", 100, 10, 2);
penjualan.tambah_simpul("Barang B", 150, 0, 3);
penjualan.tambah_simpul("Barang C", 80, 5, 1);
cout << "Data sebelum penghapusan diskon 0%:" << endl;
penjualan.tampilkan_data_diatas_rata_rata();
penjualan.hapus_diskon_nol();
cout << "nData setelah penghapusan diskon 0%:" << endl;
penjualan.tampilkan_data_diatas_rata_rata();
double total_harga = penjualan.total_harga();
cout << "nTotal Harga: " << total_harga << endl;
return 0;
}
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