变换一行代码从c入c++

#include <iostream>
#include <stdio.h>
using namespace std;

int item, jumlahbarang, total = 0, total_belanja = 0, uang, kembalian, sum = 1, memory[100], memory_jumlah[100];
    const char* aitem[11] = { "fillthe0","ITEM 1", "ITEM 2"};
    string repeat;
    int price1= 53000;
    int price2= 76000;

int main(){
    cout << "               | ID   | Nama Barang                     | Harga Barang |" << endl;
    cout << "               |------|---------------------------------|--------------|" << endl;
    cout << "               | 1.   | ITEM 1                          | Rp. 53000    |" << endl;
    cout << "               | 2.   | ITEM 2                          | Rp. 76000    |" << endl;

while (repeat.compare("n") != 0) {
    label:
        cout << " Input item id : ";
        cin >> item;
        memory[sum] = item;
        if (item == 1) {
            cout << " Item anda : " << aitem[1] << endl;
            cout << " How much item do you want ot buy? : ";
            cin >> jumlahbarang;
            memory_jumlah[sum] = jumlahbarang;
            sum++;
            total = price1 * jumlahbarang;
            total_belanja = total_belanja + total;
        }
        else if (item == 2) {
            cout << " Item anda : " << aitem[2] << endl;
            cout << " How much item do you want ot buy? : ";
            cin >> jumlahbarang;
            memory_jumlah[sum] = jumlahbarang;
            sum++;
            total = price2 * jumlahbarang;
            total_belanja = total_belanja + total;
        }

        cout << " Beli Lagi?(y/n)";
        cin >> repeat;
    }

    cout << "\n\n Struk Belanja\n";
    cout << " -------------\n";
    cout << " Item list : \n";
    for (int i = 1; i < sum; i++) {
        printf(" - %dx %s\n", memory_jumlah[i], aitem[memory[i]]);
    }
return 0;
}

代码以上是代码，用于制作一个recipt,我的问题是我无法转换" printf(" - %dx %s\n", memory_jumlah[i], aitem[memory[i]]); "从c的更新为c++，我不知道是什么代码我应该使用。 我已经尝试过正确的单词，改变了它入状况，它仍然没有工作。

从我知道，c++使用状<<而不是printf，蚂蚁c++不使用%d%。