Problem A
Best Compromise — Problem Statistics

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Submissions	1613
Accepted submissions	1038
Submission ratio	64.35%
Authors	998
Full solves [?]	916
Full solve Ratio	91.78%

#	User	Runtime	Language	Date
1	masosz	0.02 s	C#	2015-03-23 19:30:55
2	Akif Kamal	0.02 s	C#	2015-09-23 05:14:57
3	Udgin Pyl	0.02 s	C#	2015-09-28 23:47:03
4	Robert Low	0.02 s	C#	2016-08-12 09:01:54
5	Robert Warnestam	0.02 s	C#	2017-01-18 16:41:03
6	Gurpartap Singh Bhatti	0.02 s	C#	2019-09-28 21:58:17
7	Sebastian Sternberg	0.03 s	C#	2021-03-02 22:29:35
8	Göran Andersson	0.03 s	C#	2022-05-20 00:38:29
9	Søren Larsen	0.04 s	C#	2018-10-14 18:47:06
10	Mikael Fiala-Lundström	0.04 s	C#	2021-05-21 20:21:32

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-10-13 22:14:01

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-05-08 20:35:44
2	Sergey Jakobsen	0.27 s	Go	2022-02-10 21:52:27

#	User	Runtime	Language	Date
1	Morten Lohne	0.00 s	Haskell	2017-10-04 20:13:31
2	Steinar Simonnes	0.01 s	Haskell	2024-02-19 11:35:43
3	Christopher Whelan	0.01 s	Haskell	2025-01-30 17:38:45
4	Jason Hooper	0.02 s	Haskell	2019-08-28 20:18:15
5	Brent Yorgey	0.03 s	Haskell	2017-10-30 05:05:57
6	Hidden user	0.03 s	Haskell	2019-10-26 14:28:18
7	Jan Hrček	0.03 s	Haskell	2021-03-21 13:34:31
8	Christian Leipe	0.23 s	Haskell	2022-01-12 13:17:54

#	User	Runtime	Language	Date
1	Samuel Klingström	0.06 s	Java	2017-06-12 22:15:41
2	Amy Colpitts	0.06 s	Java	2025-07-18 00:48:35
3	Jan Štola	0.07 s	Java	2015-05-27 21:04:01
4	Brandon Morris	0.07 s	Java	2015-10-04 14:27:47
5	Dennis Shi	0.07 s	Java	2015-12-30 06:39:50
6	Love Engman	0.07 s	Java	2016-05-19 16:35:28
7	Martijn Muijsers	0.07 s	Java	2016-10-11 23:31:56
8	Phan Ngoc Lan	0.07 s	Java	2016-12-30 10:25:50
9	Erik Tjøswold	0.07 s	Java	2017-10-04 16:53:35
10	Emil Bak-Møller	0.07 s	Java	2020-09-13 22:07:25

#	User	Runtime	Language	Date
1	Samuel Högfeldt	0.11 s	JavaScript (Node.js)	2022-08-08 07:46:52
2	Chris Wong	0.44 s	JavaScript (Node.js)	2022-01-20 14:29:28

#	User	Runtime	Language	Date
1	Peter Kedemo	0.02 s	JavaScript (SpiderMonkey)	2015-12-26 01:16:51
2	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-02-26 17:09:31
3	Paul Leung	0.02 s	JavaScript (SpiderMonkey)	2017-03-21 17:01:00
4	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-01-29 19:48:21
5	Jimmy Gustafsson	0.03 s	JavaScript (SpiderMonkey)	2024-08-06 15:03:27
6	Peter Menyes	0.04 s	JavaScript (SpiderMonkey)	2021-11-05 13:57:20

#	User	Runtime	Language	Date
1	Timothy Gaede	0.51 s	Julia	2024-04-26 03:37:05

#	User	Runtime	Language	Date
1	Hidden user	0.18 s	Kotlin	2020-02-05 00:56:50
2	Adam Rankin	0.25 s	Kotlin	2023-05-09 22:09:22
3	Neil Harmon	0.29 s	Kotlin	2019-07-16 11:57:57
4	Mohsen Dehbashi	0.33 s	Kotlin	2019-07-06 10:34:16

#	User	Runtime	Language	Date
1	Tazmilur Saad	0.00 s	OCaml	2024-11-02 19:21:42

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2021-05-21 20:48:58
2	Tibor Szentmarjay	0.02 s	PHP	2017-03-17 22:49:35

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.42 s	Prolog	2018-11-27 22:15:35

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.04 s	Python 2	2015-07-28 16:05:23
2	Asger Hautop Drewsen	0.04 s	Python 2	2015-09-24 05:09:41
3	Ailo Aasen	0.04 s	Python 2	2015-10-09 01:18:09
4	Frederik Højholt	0.04 s	Python 2	2015-11-03 12:58:32
5	Nick Wu	0.05 s	Python 2	2015-10-08 01:58:24
6	Erik Sillén	0.05 s	Python 2	2016-05-23 15:52:14
7	Geson Chong	0.05 s	Python 2	2017-03-12 18:43:31
8	William Gan	0.05 s	Python 2	2017-12-27 11:49:24
9	Hidden user	0.05 s	Python 2	2018-01-06 02:56:15
10	Jesper Öqvist	0.05 s	Python 2	2018-10-27 15:21:54

#	User	Runtime	Language	Date
1	James Hamm	0.02 s	Python 3	2017-11-11 13:35:32
2	Christian Lindeström	0.03 s	Python 3	2016-09-02 01:11:02
3	Stefan Kennedy	0.03 s	Python 3	2016-12-22 21:35:40
4	Trym Rødvei	0.03 s	Python 3	2017-10-04 18:13:42
5	Ram Basnet	0.03 s	Python 3	2017-12-22 08:12:18
6	Johan Wind	0.03 s	Python 3	2018-04-15 23:12:56
7	Hidden user	0.03 s	Python 3	2018-04-22 18:38:44
8	Raymond Yang	0.03 s	Python 3	2019-11-15 17:16:53
9	Alan Grant	0.04 s	Python 3	2016-11-24 17:29:38
10	Óðinn Eyjólfsson	0.04 s	Python 3	2017-02-19 23:50:03

#	User	Runtime	Language	Date
1	Kok Dith	0.08 s	Ruby	2021-08-27 05:05:46
2	Clement Oh	0.10 s	Ruby	2023-11-08 14:10:51

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-01-07 08:58:42
2	Simon Lixenfeld	0.00 s	Rust	2022-09-05 20:28:42
3	Freek van Keulen	0.00 s	Rust	2022-10-03 14:52:51
4	Jonathan Hallström	0.00 s	Rust	2022-11-20 10:13:04
5	Isak Jägberg	0.00 s	Rust	2024-11-04 11:37:45
6	Pankajkumar Patro	0.00 s	Rust	2025-05-07 21:44:05
7	Ming Kang	0.00 s	Rust	2025-06-08 08:37:32
8	Vincent Lagerros	0.00 s	Rust	2025-06-08 23:24:52

#	User	Runtime	Language	Date
1	Shulei Wang	0.07 s	TypeScript	2025-05-16 23:24:11

#	User	Length	Language	Date
1	David Ludwig	458	C	2017-12-04 00:56:04
2	Klas Björkqvist	523	C	2012-09-10 22:41:51
3	Hidden user	545	C	2014-11-22 15:50:04
4	Nguyễn Hoàng	545	C	2016-03-08 13:17:06
5	Andrew Roberts	570	C	2017-08-27 22:46:40
6	Nhật Anh Võ Nguyễn	578	C	2016-03-08 07:50:49
7	PhilCampbell	596	C	2021-02-24 12:11:47
8	Hidden user	623	C	2024-11-22 10:21:50
9	Hrant Hovhannisyan	639	C	2017-04-17 10:40:41
10	Mirel Cosulschi	667	C	2025-04-24 15:14:30

#	User	Length	Language	Date
1	Gregory Sinclair	290	C#	2023-12-11 04:16:28
2	Göran Andersson	893	C#	2022-05-20 00:38:29
3	Robert Low	1129	C#	2016-08-12 09:01:54
4	Søren Larsen	1170	C#	2018-10-14 18:47:06
5	Shantanu Sharma	1172	C#	2025-10-19 00:42:10
6	Sebastian Sternberg	1218	C#	2021-03-02 22:29:35
7	Akif Kamal	1294	C#	2015-09-23 05:14:57
8	Mikael Fiala-Lundström	1409	C#	2021-05-21 20:21:32
9	Gurpartap Singh Bhatti	1447	C#	2019-09-28 21:58:17
10	Udgin Pyl	1515	C#	2015-09-28 23:47:03

#	User	Length	Language	Date
1	Herman Karlsson	344	C++	2016-01-04 22:13:18
2	Faizan Khalid	380	C++	2018-09-20 14:10:25
3	Rick May	390	C++	2017-07-22 20:38:31
4	WU DI	392	C++	2022-11-23 16:42:45
5	Hidden user	399	C++	2020-08-03 10:16:14
6	Phillo Tunru	403	C++	2023-10-04 04:01:19
7	Christian Yongwhan Lim	412	C++	2023-06-11 19:29:46
8	Frederick Pek	421	C++	2021-06-15 08:50:26
9	人外沙耶	422	C++	2020-11-08 18:16:37
10	yaoran otovski	424	C++	2021-01-18 10:51:30

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	796	F#	2022-10-13 22:14:01

#	User	Length	Language	Date
1	Sergey Jakobsen	601	Go	2022-02-10 21:52:27
2	Norbert Voelker	1078	Go	2021-05-08 20:35:44

#	User	Length	Language	Date
1	Christopher Whelan	375	Haskell	2025-01-30 17:38:45
2	Jan Hrček	619	Haskell	2021-03-21 13:34:31
3	Steinar Simonnes	726	Haskell	2024-02-19 11:35:43
4	Christian Leipe	860	Haskell	2022-01-12 13:17:54
5	Brent Yorgey	920	Haskell	2017-10-30 05:05:57
6	Morten Lohne	2008	Haskell	2017-10-04 17:26:00
7	Jason Hooper	2870	Haskell	2019-08-28 20:18:15
8	Hidden user	8887	Haskell	2019-10-26 14:28:18

#	User	Length	Language	Date
1	Doug Goodman	524	Java	2017-09-05 17:46:49
2	Steve Tate	553	Java	2016-10-07 19:55:06
3	Zimu Qin	601	Java	2015-07-17 06:54:45
4	Ryan Looney	615	Java	2019-04-11 04:27:24
5	Chris Benton	637	Java	2018-01-10 08:25:06
6	Shawn Chen	637	Java	2018-10-25 03:55:01
7	Pontus Hult	644	Java	2019-10-20 13:23:06
8	Sean Widjaja	650	Java	2022-02-05 07:46:12
9	Andreas Jansson	654	Java	2015-10-04 14:26:03
10	Caeden Whitaker	654	Java	2020-08-09 20:30:26

#	User	Length	Language	Date
1	Chris Wong	1089	JavaScript (Node.js)	2022-01-20 14:29:28
2	Samuel Högfeldt	1540	JavaScript (Node.js)	2022-08-08 07:46:52

#	User	Length	Language	Date
1	Jimmy Gustafsson	172	JavaScript (SpiderMonkey)	2024-08-06 15:03:27
2	Christian Pilegaard Cederquist	338	JavaScript (SpiderMonkey)	2023-01-29 19:48:21
3	Bjørn Chr. Soltvedt	443	JavaScript (SpiderMonkey)	2016-02-26 17:09:31
4	Peter Kedemo	460	JavaScript (SpiderMonkey)	2015-12-26 01:16:51
5	Peter Menyes	476	JavaScript (SpiderMonkey)	2021-11-05 13:57:20
6	Paul Leung	624	JavaScript (SpiderMonkey)	2017-03-21 17:01:00

#	User	Length	Language	Date
1	Timothy Gaede	587	Julia	2024-04-26 03:37:05

#	User	Length	Language	Date
1	Mohsen Dehbashi	392	Kotlin	2019-07-06 10:34:16
2	Adam Rankin	943	Kotlin	2023-05-09 22:09:22
3	Neil Harmon	1155	Kotlin	2019-07-16 11:57:57
4	Hidden user	1464	Kotlin	2020-02-05 00:56:50

#	User	Length	Language	Date
1	Tazmilur Saad	1362	OCaml	2024-11-02 19:21:42

#	User	Length	Language	Date
1	Renate	652	PHP	2021-05-21 20:48:58
2	Tibor Szentmarjay	1019	PHP	2017-03-17 22:49:35

#	User	Length	Language	Date
1	Andriy Zyevakov	1070	Prolog	2018-11-27 22:15:35

#	User	Length	Language	Date
1	Thomas Feld	219	Python 2	2019-09-16 13:46:49
2	Andreas Eisele	247	Python 2	2018-09-07 09:33:55
3	Haggai Liu	267	Python 2	2017-04-23 23:16:50
4	William Gan	268	Python 2	2017-12-27 11:49:24
5	Catalin Popa	271	Python 2	2019-01-10 16:59:50
6	Jesper Öqvist	313	Python 2	2018-10-27 15:21:54
7	Lars Tveito	317	Python 2	2016-01-06 00:04:49
8	Andreas Björklund	328	Python 2	2019-03-13 07:41:24
9	Nick Wu	332	Python 2	2015-10-08 01:58:24
10	Hidden user	335	Python 2	2017-11-02 19:26:09

#	User	Length	Language	Date
1	Hidden user	135	Python 3	2024-09-13 02:27:21
2	Thibault Raffaillac	136	Python 3	2024-07-28 23:42:05
3	Farzam Abrishami	147	Python 3	2025-05-06 15:27:20
4	Michael Goldwasser	172	Python 3	2025-10-16 06:38:17
5	Kelly Dance	178	Python 3	2024-09-25 16:02:01
6	Alexandre Douard	182	Python 3	2024-08-10 05:10:04
7	Jón Steinn Elíasson	201	Python 3	2020-03-15 02:09:22
8	Charles Ancheta	204	Python 3	2023-04-18 22:47:06
9	Oskar Haarklou Veileborg	205	Python 3	2018-10-31 13:14:34
10	Ahmed Chamseddine	205	Python 3	2024-08-09 16:53:52

#	User	Length	Language	Date
1	Clement Oh	167	Ruby	2023-11-08 14:10:51
2	Kok Dith	268	Ruby	2021-08-27 05:05:46

#	User	Length	Language	Date
1	Pankajkumar Patro	838	Rust	2025-05-07 21:46:33
2	Simon Lixenfeld	972	Rust	2022-09-05 20:28:42
3	Bas Dirks	1009	Rust	2022-01-07 08:58:42
4	Freek van Keulen	1018	Rust	2022-10-03 14:52:51
5	Ming Kang	1137	Rust	2025-06-08 08:37:32
6	Isak Jägberg	1191	Rust	2024-11-04 11:37:45
7	Jonathan Hallström	1934	Rust	2022-11-20 10:13:04
8	Vincent Lagerros	65314	Rust	2025-06-08 23:24:52

#	User	Length	Language	Date
1	Shulei Wang	1057	TypeScript	2025-05-16 23:24:11

Solution running time distribution