禮券問題

gift-certificate.cpp

#include <cmath>
#include <iostream>
using namespace std;

int main() {
	int amount;
	cout << "請輸入商品數";
	cin >> amount;

	int products[amount];
	cout << "請輸入商品金額（以空白隔開）";
	for (int i = 0; i < amount; i++) {
		cin >> products[i];
	}

	cout << "二的 " << amount << " 次方是 " << pow(2, amount) << endl;
	int buyItOrNot[(int)pow(2, amount)][amount] = {0}; // 陣列初始化

	for (int x = 0; x < amount; x++) {
		int change = pow(2, x);
		int nowInsert = 1;
		for (int y = 0; y < pow(2, amount); y++) {
			if (y % change == 0) {
				nowInsert = (nowInsert == 0) ? 1 : 0;
			}
			buyItOrNot[y][x] = nowInsert;

			cout << buyItOrNot[y][x] << " ";
		}
		cout << endl;
	}

	return 0;
}