@[wdy1028](/user/523541) 你判斷負環炸了吧
你需要
```
++v[x]
```
by RainFestival @ 2021-10-11 11:22:22
@[RainFestival](/user/36957) 艹我是SB，过了谢谢大佬
by wdy1028 @ 2021-10-11 11:26:02
封贴
by wdy1028 @ 2021-10-11 11:26:13