```cpp
for(int i=0;i<n;i++)dfs(x+dx[i],y+dy[i]);
```
`i<n` ?
by 幽竹烟雨 @ 2022-11-20 18:24:05
@[yszkddzyh](/user/737158)
```c++
for(int i=0;i<n;i++)dfs(x+dx[i],y+dy[i]);
```
$i < n$ 是个smg
by ImposterAnYu @ 2022-11-20 18:24:15
应该是i<=n吗？
by yszkddzyh @ 2022-11-20 18:26:57
好奇怪的样子
by Foggy_night @ 2022-11-20 18:27:22
哦！！谢谢大佬指点！
by yszkddzyh @ 2022-11-20 18:28:00
不是应该是i=0;i<4;i++
by Foggy_night @ 2022-11-20 18:28:20
本人已悟
by yszkddzyh @ 2022-11-20 18:28:28
？
by kkksc004 @ 2022-12-04 15:56:46