Problem A
Distributing Ballot Boxes — Problem Statistics

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Submissions	12057
Accepted submissions	3179
Submission ratio	26.37%
Authors	2432
Full solves [?]	1996
Full solve Ratio	82.07%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.04 s	C	2019-07-15 20:57:45
2	Sabit Zahin	0.05 s	C	2015-10-20 17:34:17
3	Troels Bjerre Lund	0.08 s	C	2019-02-22 12:42:02
4	Ivan Petrov	0.08 s	C	2019-07-29 07:48:20
5	Halil Murat Goksel	0.09 s	C	2017-11-23 00:26:48
6	Nathalie Redick	0.09 s	C	2021-01-28 22:16:21
7	Joel Bäcker	0.09 s	C	2022-01-27 14:32:35
8	André Assunção	0.09 s	C	2022-09-11 17:42:03
9	Oskar Tornevall	0.09 s	C	2022-09-11 18:48:51
10	Oussama Chaabi	0.09 s	C	2022-09-22 21:24:22

#	User	Runtime	Language	Date
1	Jürgen Bussmann	0.18 s	C#	2023-05-01 10:55:25
2	Manuela Müller	0.19 s	C#	2023-05-01 10:59:52
3	Erik van der Heide	0.19 s	C#	2024-06-14 06:48:57
4	Kamiel Cornelissen	0.21 s	C#	2023-04-20 08:56:51
5	Bart Ydens	0.21 s	C#	2023-05-01 11:18:19
6	Fredrik Absalonsen	0.24 s	C#	2018-02-25 12:47:53
7	Ronald van de Weem	0.24 s	C#	2023-05-01 10:56:58
8	Steven Heinen	0.26 s	C#	2023-05-01 11:05:40
9	Laurens Fijn van Draat	0.28 s	C#	2020-07-06 16:56:52
10	Edmar Langendoen	0.31 s	C#	2021-06-14 15:51:03

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	C++	2019-02-24 09:47:36
2	Zhang Jikun	0.04 s	C++	2022-07-13 09:55:09
3	Leo Lee	0.04 s	C++	2025-02-07 13:06:42
4	Moses Mayer	0.05 s	C++	2020-12-26 10:04:30
5	Ben Wu	0.05 s	C++	2021-08-14 01:26:19
6	Lukas Rickie	0.05 s	C++	2021-09-02 07:57:10
7	Harrison Shen	0.05 s	C++	2021-09-18 00:07:11
8	Donald Dong	0.06 s	C++	2018-01-11 01:02:30
9	Guk Yi Siong	0.06 s	C++	2022-12-09 02:35:33
10	Lim Li	0.07 s	C++	2019-03-02 17:08:45

#	User	Runtime	Language	Date
1	Dmitri Nehajev	0.24 s	Fortran	2025-03-19 11:12:51

#	User	Runtime	Language	Date
1	Kåre von Geijer	0.06 s	Go	2023-09-11 19:39:10
2	Norbert Voelker	0.27 s	Go	2023-04-16 23:31:39

#	User	Runtime	Language	Date
1	Morten Lohne	0.33 s	Haskell	2018-01-30 15:06:57
2	Birk Tjelmeland	0.51 s	Haskell	2018-01-30 19:21:24
3	Ole Magnus Lie	1.53 s	Haskell	2018-02-06 11:02:36
4	Oskar Tornevall	1.87 s	Haskell	2022-09-11 18:18:17
5	Alexander Wahlsten	2.15 s	Haskell	2022-09-11 18:35:17

#	User	Runtime	Language	Date
1	Clement Oh	0.15 s	Java	2022-07-17 20:36:44
2	Nicholas Russell Saerang	0.16 s	Java	2023-10-19 21:15:55
3	Arnav Sastry	0.17 s	Java	2018-11-21 21:01:14
4	Yunjia Tian	0.17 s	Java	2025-10-06 18:27:00
5	Hnin Wutt Yee Tun	0.20 s	Java	2019-11-01 05:06:12
6	Akeem McKenzie	0.21 s	Java	2019-04-25 19:39:51
7	Tian Xiao	0.21 s	Java	2021-03-13 06:46:30
8	Mehrzad Gandhi	0.23 s	Java	2022-02-09 22:11:09
9	Dominic Danborn	0.24 s	Java	2022-02-10 20:53:03
10	Altu Khan	0.25 s	Java	2019-12-29 12:08:44

#	User	Runtime	Language	Date
1	Daniel Lang	0.30 s	JavaScript (Node.js)	2022-06-13 20:13:21

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.30 s	JavaScript (SpiderMonkey)	2023-06-21 14:28:15

#	User	Runtime	Language	Date
1	Hidden user	0.47 s	Julia	2025-04-16 05:21:20
2	Timothy Gaede	0.70 s	Julia	2025-10-14 11:41:15

#	User	Runtime	Language	Date
1	Hidden user	0.50 s	Kotlin	2018-02-07 23:44:45
2	Danny Mittal	1.24 s	Kotlin	2022-09-30 02:52:47

#	User	Runtime	Language	Date
1	Joel Newman	0.44 s	OCaml	2023-09-21 01:48:01

#	User	Runtime	Language	Date
1	Morten Mehus	0.55 s	PHP	2018-02-19 20:25:34

#	User	Runtime	Language	Date
1	Rachel Campbell	0.29 s	Python 2	2017-05-08 00:20:33
2	Øyvind Haarberg	0.29 s	Python 2	2017-11-01 17:14:53
3	Mateusz Drwal	0.29 s	Python 2	2018-02-24 17:35:20
4	Hidden user	0.30 s	Python 2	2017-11-23 02:32:40
5	Maisam Arif	0.32 s	Python 2	2017-04-29 19:00:11
6	Lars Åström	0.32 s	Python 2	2019-10-09 17:10:09
7	Steffen Sande	0.33 s	Python 2	2018-01-30 17:51:34
8	Julio Maldonado	0.33 s	Python 2	2019-03-17 02:20:37
9	Ole Magnus Lie	0.34 s	Python 2	2018-02-06 12:06:43
10	Jesper Öqvist	0.35 s	Python 2	2019-03-12 10:16:53

#	User	Runtime	Language	Date
1	Adam Hochschild	0.25 s	Python 3	2021-09-24 18:31:31
2	Hidden user	0.28 s	Python 3	2024-10-27 17:35:42
3	Salo Lavy Perez	0.28 s	Python 3	2025-09-21 16:30:59
4	Pizza Hut	0.30 s	Python 3	2025-06-07 03:49:46
5	Kadriye Yildiz	0.31 s	Python 3	2024-08-17 13:23:08
6	Lennon Shikhman	0.31 s	Python 3	2024-10-30 15:32:58
7	Koen Timmermans	0.32 s	Python 3	2024-06-10 13:23:18
8	UTM CS AI	0.32 s	Python 3	2024-08-12 13:53:59
9	Erki Baumann	0.32 s	Python 3	2025-04-10 10:02:02
10	d1strikt	0.32 s	Python 3	2025-05-28 15:30:17

#	User	Runtime	Language	Date
1	Siddharth Soni	0.89 s	Ruby	2025-06-25 19:55:25

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.04 s	Rust	2024-08-26 21:35:26
2	Muhammad Rais Fathin Mudzakir	0.06 s	Rust	2021-05-15 21:21:47
3	Muhammad Sohail	0.08 s	Rust	2024-09-20 08:50:22
4	Simon Erlandsson	0.09 s	Rust	2025-03-26 00:34:27
5	Mathias Magnusson	0.11 s	Rust	2019-02-02 15:52:51
6	Sindbad Walter	0.11 s	Rust	2023-09-22 23:35:28
7	Erik Magnusson	0.12 s	Rust	2025-04-29 16:18:30
8	Petr Sabel	0.15 s	Rust	2023-09-26 12:21:08
9	Joe Blower	0.78 s	Rust	2025-09-10 01:02:41
10	David Rasch	1.04 s	Rust	2022-03-11 16:02:48

#	User	Length	Language	Date
1	Troels Bjerre Lund	516	C	2019-02-22 12:42:02
2	Mirel Cosulschi	730	C	2024-03-26 07:30:21
3	Ivan Petrov	738	C	2019-07-29 07:48:20
4	Joel Bäcker	922	C	2022-01-27 14:32:35
5	Sabit Zahin	991	C	2015-10-20 17:34:17
6	Nathalie Redick	1046	C	2021-01-28 22:16:21
7	Hidden user	1243	C	2023-09-11 20:07:47
8	Edoardo Fanton	1386	C	2025-07-10 14:37:21
9	Oskar Tornevall	1535	C	2022-09-11 18:48:51
10	Oussama Chaabi	1657	C	2022-09-22 21:24:22

#	User	Length	Language	Date
1	traxex	719	C#	2024-05-27 11:11:48
2	Jürgen Bussmann	1281	C#	2023-05-01 10:47:36
3	Manuela Müller	1377	C#	2023-05-01 10:59:52
4	Ronald van de Weem	1415	C#	2023-05-01 10:59:54
5	Kamiel Cornelissen	1448	C#	2023-04-20 08:56:51
6	Gerben Roos	1540	C#	2021-06-14 16:03:24
7	Laurens Fijn van Draat	1627	C#	2020-07-06 16:56:52
8	Hidden user	1633	C#	2024-06-10 13:27:09
9	Joop van der Heiden	1710	C#	2022-06-15 13:14:28
10	Gustav Kalander	1758	C#	2018-02-24 15:03:35

#	User	Length	Language	Date
1	Filip Bodor	398	C++	2025-08-02 13:14:14
2	William Gan	399	C++	2018-02-02 10:19:06
3	Adrien	404	C++	2024-03-29 15:53:58
4	Daria Pasqualetti	448	C++	2021-12-04 11:30:46
5	Mugeon Kim	448	C++	2024-05-29 00:39:05
6	Blaz Ignacio	449	C++	2022-09-19 23:14:25
7	Ale Mini	462	C++	2022-12-03 08:49:11
8	Michele	463	C++	2021-12-04 22:32:13
9	Edgardo Gato	469	C++	2024-03-22 21:37:58
10	Markus Mathiasen	479	C++	2022-09-13 18:40:06

#	User	Length	Language	Date
1	Dmitri Nehajev	859	Fortran	2025-03-19 11:12:51

#	User	Length	Language	Date
1	Norbert Voelker	1275	Go	2023-04-16 23:36:58
2	Kåre von Geijer	1507	Go	2023-09-11 19:39:10

#	User	Length	Language	Date
1	Birk Tjelmeland	735	Haskell	2018-01-30 19:21:24
2	Alexander Wahlsten	1003	Haskell	2022-09-11 18:35:17
3	Ole Magnus Lie	1054	Haskell	2018-02-06 11:02:36
4	Oskar Tornevall	1523	Haskell	2022-09-11 18:18:17
5	Morten Lohne	1984	Haskell	2018-01-30 15:12:26

#	User	Length	Language	Date
1	Yeung Man Tsung	608	Java	2022-07-26 16:23:45
2	Doug Goodman	726	Java	2016-10-10 18:14:41
3	Eamonn Lye	790	Java	2017-11-17 23:44:30
4	Richard Ni	790	Java	2017-11-24 04:11:35
5	Brynn Harrington	811	Java	2021-09-11 20:22:05
6	Liu Han	851	Java	2020-04-12 15:22:47
7	Maksim Segen	956	Java	2025-05-19 22:48:45
8	Kristoffer Åhgren	973	Java	2016-11-29 08:30:45
9	Kurtis Van Gent	974	Java	2016-10-07 16:58:24
10	yyy	1005	Java	2022-08-15 13:34:13

#	User	Length	Language	Date
1	Daniel Lang	1255	JavaScript (Node.js)	2022-06-13 19:58:38

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	728	JavaScript (SpiderMonkey)	2023-06-21 14:28:15

#	User	Length	Language	Date
1	Timothy Gaede	741	Julia	2025-10-14 11:41:15
2	Hidden user	762	Julia	2025-04-16 05:21:20

#	User	Length	Language	Date
1	Danny Mittal	626	Kotlin	2022-09-30 02:52:47
2	Hidden user	3220	Kotlin	2018-02-07 23:44:45

#	User	Length	Language	Date
1	Joel Newman	2555	OCaml	2023-09-21 01:48:01

#	User	Length	Language	Date
1	Morten Mehus	828	PHP	2018-02-19 20:25:34

#	User	Length	Language	Date
1	Andreas Björklund	333	Python 2	2019-10-08 14:20:20
2	Thomas Feld	370	Python 2	2019-09-25 12:52:53
3	Lars Åström	425	Python 2	2019-10-09 17:10:09
4	Sergey Pashkovsky	437	Python 2	2018-01-03 16:29:24
5	Robin Guzniczak	497	Python 2	2017-11-23 22:43:30
6	Jesper Öqvist	500	Python 2	2019-03-12 10:16:53
7	Rachel Campbell	538	Python 2	2017-05-08 00:20:33
8	William Taylor-Melanson	539	Python 2	2021-05-11 16:14:48
9	Nils Gustafsson	545	Python 2	2018-02-22 17:15:18
10	Vương Thiện Trung	583	Python 2	2019-06-04 21:04:36

#	User	Length	Language	Date
1	Benjamin Z White	192	Python 3	2023-08-31 22:50:37
2	Farzam Abrishami	220	Python 3	2024-01-20 23:53:58
3	Siddharth Soni	237	Python 3	2025-06-25 19:36:05
4	Rumbin Lee	275	Python 3	2023-05-18 15:14:03
5	Nikola Katov	378	Python 3	2025-06-24 19:08:00
6	Adil Rasiyani	385	Python 3	2023-03-01 22:01:56
7	Gustav Kalander	395	Python 3	2022-09-11 13:45:21
8	Sam Chen	397	Python 3	2025-09-24 23:53:18
9	Jason Cannon	399	Python 3	2019-05-27 18:27:03
10	David Cho	408	Python 3	2023-11-16 22:46:48

#	User	Length	Language	Date
1	Siddharth Soni	181	Ruby	2025-06-25 19:55:25

#	User	Length	Language	Date
1	Mathias Magnusson	1023	Rust	2019-02-02 15:52:51
2	Muhammad Sohail	1029	Rust	2024-09-20 08:50:22
3	Petr Sabel	1583	Rust	2023-09-26 12:21:08
4	Mikail Khan	1616	Rust	2022-02-06 03:18:19
5	Sindbad Walter	1632	Rust	2023-09-22 23:35:28
6	Simon Erlandsson	1718	Rust	2025-03-26 00:34:27
7	David Rasch	1728	Rust	2022-03-11 16:02:48
8	Joe Blower	2727	Rust	2025-09-10 01:02:41
9	Erik Magnusson	3898	Rust	2025-04-29 16:18:30
10	Vincent Lagerros	4221	Rust	2024-05-17 12:03:54

Solution running time distribution