因为你纯忍饥
by Kobeni_ @ 2024-07-17 17:14:28
和你错的一样
[链接](https://www.luogu.com.cn/record/171209967)
by qiuxiangyu2010 @ 2024-08-07 17:56:35
@[qiuxiangyu2010](/user/1259477) @[chenxingyu12345](/user/945549) 需要特判前缀和为 `0`
hack by queenbee
```
in:
6
1 0 1 0 0 1
```
```
out:
4
```
```
ans:
6
```
by Chlero @ 2024-08-13 09:49:59
@[Chlero](/user/1034235) 已AC感谢大佬
by jwsdy @ 2024-08-16 18:14:10