kradcigam @ 2020-12-05 16:16:00
RT
by Sya_Resory @ 2020-12-05 16:18:19
https://www.luogu.com.cn/problem/U114994
附件answers.zip
by Sya_Resory @ 2020-12-05 16:18:33
@zhaohaikun
by kradcigam @ 2020-12-05 16:19:28
@Sya_Resory 蟹蟹