参考的 <https://oiwiki.org/ds/seg/#%E4%BE%8B%E9%A2%98_1>,1111
by Carroty_cat @ 2023-10-11 17:56:03
@[Carroty_cat](/user/912750) lca 的 dif 写错了,但改了还是过不了
by diqiuyi @ 2023-10-11 19:21:39
哦刚刚忘记改这里了:
```cpp
for (int i = 0; 1 << i <= dif; i++)
if (1 << i & dif) v = fa[i][v];
```
改完就过了
by diqiuyi @ 2023-10-11 19:30:14
@[diqiuyi](/user/324666) %%% 谢谢谢谢谢谢 这段是 lca 板上拷下来的怎么出锅了 谢谢谢谢谢谢
by Carroty_cat @ 2023-10-12 07:37:18
大小号都关了
by Carroty_cat @ 2023-10-12 07:39:09
@[Carroty_cat](/user/912750) 谢谢您的hack数据。
lca写错了。
by Wf_yjqd @ 2024-01-13 10:03:12