[点这里](https://www.luogu.com.cn/problem/solution/P5686)
@ liuhaodong2021
by 2011Andy @ 2022-10-31 20:01:43
@[liuhaodong2021](/user/602624) 点这里[吧](https://www.luogu.com.cn/problem/solution/P5686)
by 卷王 @ 2022-11-20 18:50:22
[@liuhaodong2021](https://www.luogu.com.cn/user/602624)
[题解传送门](https://www.luogu.com.cn/problem/solution/P5686)
by C_stray @ 2023-09-24 18:16:37