@[ChenZQ](/user/745358) ~~（线段树1题解复制粘贴即可）~~
by _little_Cabbage_ @ 2024-03-20 22:39:21
开个玩笑题都不一样
by _little_Cabbage_ @ 2024-03-20 22:41:55
@[ChenZQ](/user/745358) 因为写挂了，单词修改复杂度退化成了O(n)
by naijgnorgnahz @ 2024-03-20 22:59:37
add 函数调用自己时忘加 if 了
by naijgnorgnahz @ 2024-03-20 23:01:02
@[ChenZQ](/user/745358) pushdown写挂了
by shin_chan_jiang @ 2024-03-20 23:01:06
@[naijgnorgnahz](/user/361605) 请问该怎么改
by ChenZQ @ 2024-03-20 23:01:22
@[shin_chan_jiang](/user/750292) pushdown 为什么会挂啊
by naijgnorgnahz @ 2024-03-20 23:02:02
add也挂了
by shin_chan_jiang @ 2024-03-20 23:02:22
@[naijgnorgnahz](/user/361605) seg不应该加的是tag乘区间长度吗
by shin_chan_jiang @ 2024-03-20 23:03:34
```
add(l,mid,u*2);
add(mid+1,r,u*2+1);
```
替换为
```
if(mid>=aa && l<=b) add(l,mid,u*2);
if(r>=aa && mid+1<=b) add(mid+1,r,u*2+1);
```
by naijgnorgnahz @ 2024-03-20 23:05:27