```cpp
printf("%d ", ans[i]);
```
这一句改为
```cpp
printf("%3d",ans[i]);
```
by yzl0225 @ 2023-10-30 20:21:41
```cpp
scanf_s("%d %d", &n, &m);
```
?\
不应该是scanf吗？
那一句也可以用题目中的```cout << setw(3) << x;```
来
by yzl0225 @ 2023-10-30 20:25:11