qbswnd @ 2024-10-06 15:53:31
https://www.luogu.com.cn/discuss/new?forum=P1047
by Focalors_HuTao @ 2024-10-06 15:56:41
因为l只有10000，所以用标记数组，移动过了标记一下（例如0,1标记，没移的用0，移过得用1）
by qbswnd @ 2024-10-07 12:04:02
@Focalors_HuTao 感谢
by Focalors_HuTao @ 2024-10-07 13:52:50
@qbswnd 求关注
by qbswnd @ 2024-10-07 15:47:23
@Focalors_HuTao 已关