题解 | #Old Bill#

#include <iostream>
using namespace std;
bool match(int sum, int x, int y, int z) {
    bool flag = true;
    sum = sum / 10;
    if (sum % 10 != z) flag = false;
    sum = sum / 10;
    if (sum % 10 != y) flag = false;
    sum = sum / 10;
    if (sum % 10 != x) flag = false;
    return flag;
}
int main() {
    int n, x, y, z, sum;
    while(scanf("%d", &n) != EOF) {
        scanf("%d %d %d", &x, &y, &z);
        for (int price = 99999 / n; price >= 0; --price) {
            sum = price * n;
            if (match(sum, x, y, z)) {
                cout << sum / 10000 << " " << sum % 10 << " " << price << endl;
                break;
            }
            if (price == 0 || sum < 10000) {
                cout << 0 << endl;
                break;
            }
        }
    }
}