你的区间加是不是写假了
by Saka_Noa @ 2022-08-15 19:42:02
%%%syt
by Meika_Hime @ 2022-08-15 19:42:03
@[sabkx](/user/577164) 初始全为0
by Saka_Noa @ 2022-08-15 19:45:28
@[sabkx](/user/577164) 不需要
by Saka_Noa @ 2022-08-15 19:45:55
@[Himezaka_noai](/user/498612) 欸是吗?我就照着区间加单点查的标记永久化线段树写的/dk
by syta @ 2022-08-15 19:47:31
@[sabkx](/user/577164) 是的就像那位dalao说的一样,我觉得都是0就没pushup
by syta @ 2022-08-15 19:48:42
@[syta](/user/505643) 永久标记吗,我没写过,那我看错了
by Saka_Noa @ 2022-08-15 19:49:19
modify加一句话
```cpp
if(t[p].r<lx|t[p].l>rx)return;
```
by waauto @ 2022-08-15 19:55:31
另外,lazytag不用初始化
by waauto @ 2022-08-15 19:56:30
@[RainL](/user/355192) A了谢谢喵
by syta @ 2022-08-15 19:56:50