好像是建边顺序的问题，把
```
const int D[][2] = {{1, 2}, {2, 1}, {2, -1}, {1, -2}, {-1, -2}, {-2, -1}, {-2, 1}, {-1, 2}};
```
改成
```
int D[8][2] = {{-1, -2}, {-2, -1}, {2, -1}, {1, -2}, {-1, 2}, {-2, 1}, {2, 1}, {1, 2}};
```
就能过，具体说明参考 @
reclusive 大佬的讨论区 [这里](https://www.luogu.com/discuss/509408)
（我也是被大佬捞上来的%%%）
by Liuboom @ 2024-06-26 16:55:37
@[Liuboom](/user/508086) 谢，此帖结
by plamya @ 2024-07-03 11:51:33