@[WYXkk](/user/130151)
@[chen_zhe](/user/8457)
by Rubidium_Chloride @ 2021-08-08 13:48:36
随便卡吧
```cpp
input:
5
1 2 3 4 5
answer:
4
output:
5
```
by cyffff @ 2021-08-08 13:52:22
哦对要换行
```cpp
input:
5
1
2
3
4
5
```
by cyffff @ 2021-08-08 13:52:54
[数据太大了只能作为测试点上传了……希望管理能下下来加进题目里](https://www.luogu.com.cn/problem/U172691)
by Rubidium_Chloride @ 2021-08-08 14:18:37
？为什么要那么大的点，我的那个就够了（
by cyffff @ 2021-08-08 14:30:17
@[cyffff](/user/365127) 卡一卡，多卡一卡，而且你那个可能被特判判掉？
by Rubidium_Chloride @ 2021-08-08 14:31:09
ll query(ll l,ll r){return s[r]-s[l-1];}
for(ll i=1;i<=n;++i)s[i]=s[i-1]+b[i];
for(ll i=1;i<=n;++i){
ll now=query(i+1,n)-query(1,i-1)+(2*i-n-1)*b[i];
ans=min(ans,now);
}
直接暴搜就好了（
by Maxwell_dcc @ 2021-08-08 16:15:54
至少暴力能过5e6的数据（实测）
暴力只是O(n)
sort()已经nlogn了还怕啥
by Maxwell_dcc @ 2021-08-08 16:23:42