支持
@[chen_zhe](/user/8457)
by fish_love_cat @ 2023-05-18 12:33:07
in:
```
5 5 1 1
```
out:
```
0 3 2 3 2
3 4 1 2 3
2 1 4 3 2
3 2 3 2 3
2 3 2 3 4
```
by Tx1234567 @ 2023-06-05 21:33:49