表示看不懂
by zhb20070508 @ 2022-10-19 15:05:09
%%%
by Kiss_Qing @ 2022-10-19 15:47:37
hack:
```
4
0 1 0
0 1 0
1 0 0
0 0 1
```
答案是 `3`，但是输出了 `4`。（最好把其他位移的情况也加上）
by E_firework @ 2022-10-19 16:27:51