Problem A
Arranging Hat — Problem Statistics

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Submissions	688
Accepted submissions	200
Submission ratio	29.07%
Authors	191
Full solves [?]	151
Full solve Ratio	79.06%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.06 s	C	2017-11-16 13:21:21

#	User	Runtime	Language	Date
1	Brandon Zhang	0.05 s	C++	2023-04-24 07:29:39
2	Andrew Liang	0.06 s	C++	2016-11-20 14:02:56
3	Erika Liu	0.06 s	C++	2016-11-26 16:52:50
4	Yao Yuan	0.06 s	C++	2017-10-21 05:40:14
5	Lingyu Song	0.06 s	C++	2018-09-23 18:08:30
6	Jonatan Nilsson	0.06 s	C++	2019-09-15 09:47:36
7	呂 爾軒	0.06 s	C++	2019-10-30 11:46:16
8	Jeffrey Paone	0.06 s	C++	2022-05-28 20:55:40
9	Ludo Pulles	0.07 s	C++	2016-11-22 00:55:27
10	Oskar Larsson	0.07 s	C++	2019-10-27 00:05:39

#	User	Runtime	Language	Date
1	Jonathan Easterday	0.20 s	Java	2017-04-08 21:33:30
2	Darrin Wiley	0.40 s	Java	2017-09-06 19:32:26
3	Alice Ryhl	0.69 s	Java	2018-12-22 11:45:29
4	Spencer Compton	1.08 s	Java	2016-11-20 15:08:17
5	Finn Lidbetter	1.13 s	Java	2017-08-05 21:00:05
6	Alex Coleman	1.20 s	Java	2017-03-02 19:25:04
7	Benjamin Reidys	1.42 s	Java	2019-11-06 23:25:21
8	Nick Wu	2.11 s	Java	2018-08-17 08:24:49
9	Brad Z	2.44 s	Java	2018-10-29 20:05:49
10	Alex Zuckut	2.45 s	Java	2017-04-08 21:06:38

#	User	Runtime	Language	Date
1	Jacob Huebner	1.32 s	Kotlin	2022-05-28 19:32:07

#	User	Runtime	Language	Date
1	Andreas Björklund	4.31 s	Python 2	2018-11-30 09:43:37

#	User	Runtime	Language	Date
1	Saif Shahriar	0.34 s	Python 3	2025-12-05 10:10:50
2	Libo Max	0.36 s	Python 3	2024-04-23 02:27:16
3	Shiven Patel	0.36 s	Python 3	2024-05-24 02:56:17
4	Alissar Almhaisen	0.36 s	Python 3	2024-06-14 21:11:07
5	Aleena Saleem	0.36 s	Python 3	2024-06-26 21:48:15
6	Prodan Radu-Matei	0.36 s	Python 3	2024-06-29 06:00:07
7	Nicholas Russell Saerang	0.37 s	Python 3	2023-09-14 12:50:45
8	Björn Magnusson	0.48 s	Python 3	2022-11-08 12:05:10
9	Lennart Meyling	0.50 s	Python 3	2023-10-27 21:59:55
10	Måns Magnusson	2.98 s	Python 3	2021-11-13 12:02:56

#	User	Length	Language	Date
1	Ivan Petrov	2561	C	2017-11-16 13:21:21

#	User	Length	Language	Date
1	xzf_200906	1018	C++	2024-11-15 08:36:27
2	Johan Wind	1097	C++	2018-03-24 02:19:46
3	William Gan	1197	C++	2018-12-09 05:59:06
4	Noah Weninger	1203	C++	2018-09-17 06:27:33
5	Hidden user	1206	C++	2016-12-01 09:57:47
6	Josenildo Silva	1217	C++	2018-08-07 19:04:07
7	Ragur Krishnan	1224	C++	2018-09-21 05:19:55
8	Prashil Zinjuwadia	1312	C++	2020-11-30 20:00:05
9	Daniel dos Santos Bossle	1321	C++	2017-10-01 22:40:42
10	Jeroen Op de Beek	1366	C++	2022-11-13 16:25:43

#	User	Length	Language	Date
1	Benjamin Reidys	2054	Java	2019-11-06 23:25:21
2	Spencer Compton	2568	Java	2016-11-20 15:08:17
3	Finn Lidbetter	2795	Java	2017-08-05 21:00:05
4	Alex Zuckut	2966	Java	2017-04-08 21:06:38
5	Alex Coleman	3022	Java	2017-03-02 19:25:04
6	Alice Ryhl	3205	Java	2018-12-22 11:45:29
7	Brad Z	3542	Java	2018-10-29 20:05:49
8	Nick Wu	3764	Java	2018-08-17 08:24:49
9	Darrin Wiley	4235	Java	2017-09-06 19:32:26
10	Ahmad Barhamje	4480	Java	2023-11-24 23:31:37

#	User	Length	Language	Date
1	Jacob Huebner	2587	Kotlin	2022-05-28 19:32:07

#	User	Length	Language	Date
1	Andreas Björklund	1540	Python 2	2018-11-30 09:43:37

#	User	Length	Language	Date
1	Måns Magnusson	1612	Python 3	2021-11-13 12:02:56
2	Aleena Saleem	1639	Python 3	2024-06-26 21:48:15
3	Saif Shahriar	1639	Python 3	2025-12-05 10:10:50
4	Nicholas Russell Saerang	1684	Python 3	2023-09-14 12:50:45
5	Libo Max	1684	Python 3	2024-04-23 02:27:16
6	Shiven Patel	1684	Python 3	2024-05-24 02:56:17
7	Alissar Almhaisen	1684	Python 3	2024-06-14 21:11:07
8	Lennart Meyling	1884	Python 3	2023-10-27 21:59:55
9	Oskar Haarklou Veileborg	1933	Python 3	2022-11-20 21:40:02
10	Prodan Radu-Matei	2265	Python 3	2024-06-29 06:00:07

Solution running time distribution