@[XTTian](/user/1165215) 21行的输出错了，应该是“No”
AC代码：
```cpp
#include<iostream>
using namespace std;
int main()
{
int K = 0, j = 0;
cin >> K;
for (int i = 10000; i <= 30000; i++)
{
int num1 = i % 10;
int num2 = i / 10 % 10;
int num3 = i / 100 % 10;
int num4 = i / 1000 % 10;
int num5 = i / 10000 % 10;
if ((num5 * 100 + num4 * 10 + num3) % K == 0 && (num4 * 100 + num3 * 10 + num2) % K == 0 && (num3 * 100 + num2 * 10 + num1) % K == 0)
{
cout << i << endl;
j = 1;
}
}
if (j == 0)
cout << "No";
return 0;
}
```
by ethanzyz @ 2023-11-05 22:26:39
@[ethanzyz](/user/691271) nb，谢谢大佬
by XTTian @ 2023-11-06 21:24:57