@[Jiuweixiansheng](/user/920098) 你要不要看看你 qry 函数写的什么东西
```cpp
if(l == r)
return w[u];
```
by Nt_Tsumiki @ 2024-03-13 17:15:31
@[Nt_Tsumiki](/user/420129) 坏了,, 眼瞎了, 谢谢大佬, 已关注
by Jiuweixiansheng @ 2024-03-13 17:51:32