@[lyhqwq](/user/100690)
push_down
by MeowScore @ 2022-06-15 10:36:49
sum 打成 lazy 了
by MeowScore @ 2022-06-15 10:37:15
```
void push_down(int rt,int llen,int rlen){
if(lazy[rt]){
lazy[lc(rt)]+=lazy[rt];
lazy[rc(rt)]+=lazy[rt];
sum[lc(rt)]+=lazy[rt]*llen;
sum[rc(rt)]+=lazy[rt]*rlen;
}
lazy[rt]=0;
}
```
by MeowScore @ 2022-06-15 10:38:56
@[Liu_Kevin](/user/140360) 谢谢
by kawaii__yuyu @ 2022-06-15 10:40:53
@[lyhqwq](/user/100690) 取模就过了
by MeowScore @ 2022-06-15 10:56:51
@[Liu_Kevin](/user/140360) stO树剖皇帝
by Iwara_qwq @ 2022-06-15 11:56:21
@[Lovable_xyz](/user/724676)
？？？？？？？？？？？？？？？？？？？？？？
别骂了
by MeowScore @ 2022-06-15 12:27:43