救救萌新
by mzycの喰种 @ 2023-07-12 20:56:24
pushdown写错了，还有query不需要pushup
```cpp
void pushdown(ll now)
{
t[ls].add += t[now].add;
t[ls].sum += t[now].add * t[ls].len;
t[rs].add += t[now].add;
t[rs].sum += t[now].add * t[rs].len;
t[now].add = 0;
}
```
by Zzzcr @ 2023-07-12 21:03:09
@[Zzzcr](/user/761491) 哦哦，谢谢大佬，还有pushup应该多加了没影响吧
by mzycの喰种 @ 2023-07-12 21:05:28
az，还是WA 28pts
by mzycの喰种 @ 2023-07-12 21:08:12
已过，update_side里面一个大于写成了小于，警钟长鸣……
by mzycの喰种 @ 2023-07-12 21:14:50