这这这
by WELTh1113 @ 2023-05-11 21:39:31
@[WELTh1113](/user/637770) ?
by yxq666 @ 2023-05-11 21:40:15
@[yxq666](/user/397352) \
应该是懒标记维护的有问题。\
我之前[20pts](https://www.luogu.com.cn/paste/mecnegz1)
和你一样的错误，就是懒标记维护的时候用$lazy2$去更新了$lazy1$。\
后来改了$lazy\_tag$的更新方式，定义$lazy1$的优先级高于$lazy2$的优先级，就是$push\_down$的时候先去$push\_tag$ $lazy1$就行了[AC](https://www.luogu.com.cn/paste/y9iso9qw)
by __xzm__ @ 2023-05-11 22:31:24
@[_xzm_](/user/540333) 我每次pushdown的时候是先 push_tag lazy1 了吧（？
by yxq666 @ 2023-05-12 18:58:04