我的代码

#include <bits/stdc++.h>
using namespace std;
int t[11];

int check_a(double x) {
	int i = x;
	int b = i / 100;
	int s = i % 100 / 10;
	int g = i % 10;
	if (t[b]) {
		return 0;
	}
	t[b] = 1;
	if (t[s]) {
		return 0;
	}
	t[s] = 1;
	if (t[g]) {
		return 0;
	}
	t[g] = 1;
	return 1;
}

int main() {
	int a, b, c;
	bool flag = 0;
	cin >> a >> b >> c;
	for (int i = 123; i <= 987; i++) {
		double x = (i * 1.0) / a;
		if ((b * x) != int(b * x)) {
			continue;
		}
		if ((c * x) != int(c * x)) {
			continue;
		}
		if (check_a(i) and check_a(b * x) and check_a(c * x)) {
			cout << i << " " << b *x << " " << c *x << endl;
			flag = 1;
			for (int j = 1; j <= 9; j++) {
				t[j] = 0;
			}
		} else {
			for (int j = 1; j <= 9; j++) {
				t[j] = 0;
			}
			continue;
		}
	}
	if (!flag) {
		cout << "No!!!";
	}
	return 0;
}

卡在#7死活过不了，Wrong Answer.wrong answer Too many lines. 我下载了测试点信息，输入是123 456 789，我的程序输出是123 456 789

这还不算玄学的，我用我老师代码测了下，在洛谷AC了，我在本地运行我老师的代码，输入123 456 789，输出竟然也是123 456 789，连换行都不差

我老师的代码

#include <bits/stdc++.h>
using namespace std;
int num[10];


bool fen(double a) {

	int b = a;
	while (b >= 1) {

		if (num[b % 10] == 1) { //已经使用
			return 0;
		} else {
			num[b % 10] = 1;
		}
		b /= 10;
	}
	return 1;
}

int main() {
	num[0] = 1;
	int A, B, C;
	int flag = 0;
	cin >> A >> B >> C;
	for (double i = 123; i <= 987; i++) {
		if (fen(i)) {
//			cout << i / A *B;
			if (i / A * B == int(i / A * B)) {
				double er = i / A * B;
				if (fen(er)) {
					if (er / B * C == int(er / B * C)) {
						double san = er / B * C;
						if (fen(san)) {
							cout << i << " " << er << " " << san << endl;
							flag++;
						}
					}
				}
			}
		}
		memset(num + 1, 0, sizeof(num));
	}
	//cout << flag;
	if (!flag) {
		cout << "No!!!";
	}
	return 0;
}

本地测试截图如下: