Problem I
Brexit — Problem Statistics

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Submissions	13389
Accepted submissions	4221
Submission ratio	31.53%
Authors	2843
Full solves [?]	2486
Full solve Ratio	87.44%

#	User	Runtime	Language	Date
1	Axel Delbom	0.04 s	C	2021-10-11 01:41:02
2	Thiabaud Engelbrecht	0.07 s	C	2019-07-27 08:09:47
3	Mirel Cosulschi	0.07 s	C	2022-11-29 17:59:35
4	Alexander Bilde Pedersen	0.09 s	C	2023-03-01 13:44:29
5	Svein Høgemo	0.10 s	C	2018-02-12 15:02:25
6	Ivan Petrov	0.10 s	C	2019-03-28 13:40:43
7	Filip Hovorka	0.10 s	C	2021-03-13 23:37:22
8	Sambit Palit	0.11 s	C	2020-11-17 00:03:22
9	Samuel Deutsch	0.13 s	C	2020-10-30 06:15:57
10	Paul Gunawan	0.13 s	C	2020-10-30 18:11:31

#	User	Runtime	Language	Date
1	William	0.36 s	C#	2023-09-28 05:32:42
2	Jialin Wu	0.37 s	C#	2023-09-28 09:13:08
3	Hidden user	0.38 s	C#	2023-09-26 18:27:41
4	Hidden user	0.39 s	C#	2023-10-02 06:28:04
5	Jacob Hopkins	0.40 s	C#	2023-09-26 00:12:27
6	Nicholas Waddoups	0.42 s	C#	2023-09-28 23:35:25
7	Andriy Zyevakov	0.42 s	C#	2025-02-24 19:22:22
8	Samuel Christensen	0.43 s	C#	2023-09-26 18:54:40
9	Jaden Rosoff	0.44 s	C#	2023-09-25 23:12:14
10	Zach Wilson	0.48 s	C#	2023-09-26 03:53:20

#	User	Runtime	Language	Date
1	Zhang Jikun	0.04 s	C++	2022-07-22 00:47:23
2	Axel Delbom	0.05 s	C++	2021-10-11 01:31:20
3	Hidden user	0.06 s	C++	2018-01-26 00:40:18
4	Duarte Nóbrega	0.06 s	C++	2019-03-24 01:28:58
5	Frank Endriss	0.06 s	C++	2020-01-08 16:20:13
6	Harrison Shen	0.06 s	C++	2020-10-17 17:31:23
7	Zhou ZhuoTong	0.06 s	C++	2021-09-05 11:10:23
8	Erik Delbom	0.06 s	C++	2021-10-11 21:07:03
9	Rishi Saran Vijayarajan	0.06 s	C++	2024-01-25 04:21:54
10	Leif Eriksson	0.07 s	C++	2018-03-01 14:48:38

#	User	Runtime	Language	Date
1	Qasim Khawaja	0.85 s	Common Lisp	2022-02-02 18:33:48

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	1.84 s	F#	2023-05-01 11:41:11

#	User	Runtime	Language	Date
1	Ola Dahl	0.40 s	Go	2023-02-02 07:52:31
2	Krzysztof Gibuła	0.53 s	Go	2021-07-07 13:06:17
3	Norbert Voelker	0.62 s	Go	2021-11-25 17:01:03
4	ErikWDev	1.18 s	Go	2022-04-13 19:08:52

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.55 s	Haskell	2024-09-29 19:16:07
2	Morten Lohne	0.56 s	Haskell	2018-01-22 17:04:07

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.16 s	Java	2024-11-16 22:43:41
2	Asmus Tørsleff	0.26 s	Java	2022-03-05 12:01:01
3	Bjørn Dons	0.27 s	Java	2018-10-25 20:44:00
4	Mehdi Ichou	0.28 s	Java	2018-07-09 23:55:17
5	Bernhard Hahn	0.29 s	Java	2021-05-01 15:15:45
6	Dominic Danborn	0.30 s	Java	2022-03-29 20:24:11
7	Hidden user	0.33 s	Java	2016-12-22 23:05:02
8	Samuel Klingström	0.33 s	Java	2017-07-15 23:50:58
9	Wu Zhen Rong	0.33 s	Java	2018-08-02 04:34:48
10	TestingFunny	0.35 s	Java	2018-09-30 16:51:12

#	User	Runtime	Language	Date
1	Chijioke Orabueze	0.66 s	JavaScript (Node.js)	2025-12-10 07:49:31

#	User	Runtime	Language	Date
1	Zachary DeStefano	0.45 s	JavaScript (SpiderMonkey)	2018-01-27 01:56:38
2	Christian Pilegaard Cederquist	0.45 s	JavaScript (SpiderMonkey)	2023-06-04 13:11:32
3	Bjørn Chr. Soltvedt	1.08 s	JavaScript (SpiderMonkey)	2016-11-20 01:25:26

#	User	Runtime	Language	Date
1	Hidden user	0.82 s	Julia	2025-03-15 22:51:09

#	User	Runtime	Language	Date
1	Hidden user	0.68 s	Kotlin	2018-02-08 00:46:54
2	Adam Rankin	0.83 s	Kotlin	2023-09-23 18:44:17
3	Hidden user	1.22 s	Kotlin	2019-11-25 23:31:54
4	Phường Lên	1.95 s	Kotlin	2019-11-21 22:00:48
5	Benjamin Ye	2.10 s	Kotlin	2023-01-23 18:57:47
6	Dayan Ruben Gonzalez	2.27 s	Kotlin	2020-10-06 05:14:16
7	Aksel Holbek Sørbye	2.94 s	Kotlin	2025-10-20 19:39:55

#	User	Runtime	Language	Date
1	Connor Billings	0.87 s	PHP	2020-11-12 00:48:13
2	Morten Mehus	1.53 s	PHP	2018-01-29 13:56:35

#	User	Runtime	Language	Date
1	Francesco Silvestri	0.26 s	Python 2	2019-04-16 09:27:41
2	Øyvind Haarberg	0.29 s	Python 2	2018-01-19 16:13:45
3	Hermon Mulat	0.30 s	Python 2	2017-07-30 08:24:14
4	Hannes Westermann	0.30 s	Python 2	2019-12-27 12:17:14
5	Henrik Adolfsson	0.32 s	Python 2	2017-01-17 19:48:49
6	Gertjan Kloosterman	0.32 s	Python 2	2018-05-14 15:40:59
7	Jocke Loxdal	0.33 s	Python 2	2019-12-27 12:06:38
8	Maj Stenmark	0.36 s	Python 2	2018-04-01 20:51:51
9	Davis Robertson	0.36 s	Python 2	2019-05-14 08:06:25
10	Gunvor Lemvik	0.37 s	Python 2	2018-02-18 21:23:35

#	User	Runtime	Language	Date
1	Ole Vik Lysne	0.29 s	Python 3	2025-03-15 17:06:18
2	Lai Zhuoyuan	0.31 s	Python 3	2023-04-08 18:36:47
3	Zahid Hasan	0.31 s	Python 3	2025-10-13 04:07:04
4	Muaadh Alhamdi	0.32 s	Python 3	2025-10-18 12:40:16
5	blin	0.32 s	Python 3	2025-10-20 08:48:50
6	Melvin Yang	0.33 s	Python 3	2020-11-22 12:28:34
7	crapcode	0.33 s	Python 3	2022-06-08 00:56:21
8	Anvit Sinha	0.33 s	Python 3	2024-10-21 04:21:46
9	HUANG YUCHEN	0.33 s	Python 3	2025-01-31 12:55:55
10	d1strikt	0.33 s	Python 3	2025-05-28 18:54:09

#	User	Runtime	Language	Date
1	Hidden user	0.51 s	Ruby	2019-10-02 23:01:19
2	Ivy Wang	0.66 s	Ruby	2023-01-17 07:10:44
3	Andreas Severin Hauch Trøstrup	0.78 s	Ruby	2023-03-05 17:21:16
4	Hidden user	1.50 s	Ruby	2023-09-28 07:43:34

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2025-03-04 01:05:24
2	Hidden user	0.07 s	Rust	2019-07-22 02:41:03
3	Alice Ryhl	0.08 s	Rust	2022-06-17 17:41:21
4	Egor Kulikov	0.09 s	Rust	2024-11-19 10:38:18
5	Akemi Izuko	0.10 s	Rust	2022-05-31 01:51:39
6	Jianghua Wang	0.11 s	Rust	2023-01-18 03:32:01
7	Logan Travis	0.11 s	Rust	2025-10-20 05:52:54
8	Connor Skees	0.12 s	Rust	2020-11-01 23:17:57
9	Bas Dirks	0.12 s	Rust	2022-07-19 15:51:01
10	Joe Blower	0.17 s	Rust	2025-08-07 02:45:19

#	User	Length	Language	Date
1	Mirel Cosulschi	1323	C	2022-11-29 17:59:35
2	Raymond Yang	1346	C	2021-09-11 05:36:46
3	Ivan Petrov	1503	C	2019-03-28 13:40:43
4	Sambit Palit	1632	C	2020-11-17 00:03:22
5	Filip Hovorka	1733	C	2021-03-13 23:37:22
6	Alexander Bilde Pedersen	1747	C	2023-03-01 13:43:54
7	Axel Delbom	1907	C	2021-10-11 20:48:16
8	Svein Høgemo	2050	C	2018-02-12 15:02:25
9	Thiabaud Engelbrecht	2149	C	2019-07-27 08:53:36
10	Samuel Deutsch	2667	C	2020-10-30 06:15:57

#	User	Length	Language	Date
1	Hidden user	1294	C#	2017-09-07 17:50:17
2	Aaron Kendell	1389	C#	2023-09-30 07:55:24
3	Rachel Albert	1486	C#	2023-10-01 07:29:36
4	Samuel Christensen	1530	C#	2023-09-26 18:55:54
5	William Campregher	1535	C#	2023-09-22 04:03:34
6	Rafael Steffen Nguyen Jensen	1664	C#	2025-03-12 22:14:46
7	SangMin Im	1868	C#	2024-11-06 09:01:57
8	Alex Laurila	1874	C#	2023-05-14 02:55:59
9	Man Wai Lam	1964	C#	2023-09-27 18:47:50
10	Aaron Schindler	1995	C#	2023-09-28 06:40:33

#	User	Length	Language	Date
1	Yeung Man Tsung	502	C++	2022-11-25 09:06:46
2	Johan Wind	551	C++	2018-09-03 00:02:06
3	Reine Reynoso	570	C++	2017-06-24 10:13:02
4	Clement Oh	591	C++	2023-11-19 18:02:50
5	study	596	C++	2021-07-12 20:51:15
6	Dick Ong	602	C++	2020-10-21 10:11:19
7	Frederick Pek	603	C++	2021-11-21 01:45:29
8	周奇霖	610	C++	2023-06-15 16:29:15
9	Jayden Wong	624	C++	2025-11-24 22:06:49
10	William Gan	626	C++	2017-12-23 15:18:45

#	User	Length	Language	Date
1	Qasim Khawaja	3586	Common Lisp	2022-02-02 09:35:05

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	2003	F#	2023-05-01 11:41:11

#	User	Length	Language	Date
1	Krzysztof Gibuła	1242	Go	2021-07-07 13:06:17
2	ErikWDev	1711	Go	2022-04-13 19:08:52
3	Norbert Voelker	2876	Go	2021-11-25 17:01:03
4	Ola Dahl	7030	Go	2023-02-02 07:52:31

#	User	Length	Language	Date
1	Steinar Simonnes	2460	Haskell	2024-09-29 19:16:07
2	Morten Lohne	2801	Haskell	2018-01-22 17:02:10

#	User	Length	Language	Date
1	Yeung Man Tsung	812	Java	2022-07-27 06:35:12
2	Doug Goodman	1102	Java	2017-09-09 17:56:10
3	Sam Huynh	1127	Java	2021-02-13 05:20:52
4	Markus Bao	1166	Java	2024-01-07 22:51:23
5	Spencer Compton	1222	Java	2016-11-19 00:17:07
6	Ronald Rojas	1237	Java	2017-07-23 08:10:00
7	Miguel Angel Torres	1239	Java	2021-05-02 00:52:19
8	Crisha Mae Estellore	1239	Java	2023-05-09 17:09:49
9	G Chao	1244	Java	2019-04-05 17:06:30
10	Brendan King	1270	Java	2020-08-14 23:36:27

#	User	Length	Language	Date
1	Chijioke Orabueze	1630	JavaScript (Node.js)	2025-12-10 07:49:31

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	1041	JavaScript (SpiderMonkey)	2023-06-04 13:11:32
2	Bjørn Chr. Soltvedt	1178	JavaScript (SpiderMonkey)	2016-11-20 01:25:26
3	Zachary DeStefano	1209	JavaScript (SpiderMonkey)	2018-01-26 23:59:44

#	User	Length	Language	Date
1	Hidden user	632	Julia	2025-03-15 22:51:09

#	User	Length	Language	Date
1	Benjamin Ye	810	Kotlin	2023-01-23 18:57:47
2	Dayan Ruben Gonzalez	1050	Kotlin	2020-10-06 05:14:16
3	Hidden user	1073	Kotlin	2019-11-25 23:31:54
4	Phường Lên	1082	Kotlin	2019-11-21 22:00:48
5	Adam Rankin	1145	Kotlin	2023-09-23 18:44:17
6	Hidden user	3523	Kotlin	2018-01-29 17:42:35
7	Aksel Holbek Sørbye	6839	Kotlin	2025-10-20 19:39:55

#	User	Length	Language	Date
1	Connor Billings	1867	PHP	2020-11-12 00:48:13
2	Morten Mehus	4610	PHP	2018-01-29 13:52:11

#	User	Length	Language	Date
1	Andreas Björklund	466	Python 2	2019-05-20 16:39:01
2	Maj Stenmark	511	Python 2	2018-04-01 20:51:51
3	Oskar Haarklou Veileborg	535	Python 2	2019-08-15 15:45:57
4	Thomas Feld	545	Python 2	2019-11-25 12:15:43
5	Björn Magnusson	552	Python 2	2021-03-13 10:17:17
6	Lars Åström	609	Python 2	2019-04-23 22:02:12
7	Kasper Borys	617	Python 2	2017-02-18 20:27:13
8	Troels Bjerre Lund	631	Python 2	2019-06-13 23:00:12
9	Fredrik Horn Dannert	669	Python 2	2021-03-19 12:38:45
10	Jesper Öqvist	673	Python 2	2019-08-17 00:52:10

#	User	Length	Language	Date
1	Lukas Kerren	305	Python 3	2024-05-08 01:27:38
2	Michael Lineweaver	361	Python 3	2024-09-28 02:01:57
3	Yong Mao	372	Python 3	2023-08-05 00:25:43
4	Hu Yijie	391	Python 3	2022-11-16 11:56:55
5	Ahmed Chamseddine	404	Python 3	2025-02-03 11:47:51
6	Crystal Math	414	Python 3	2019-10-13 17:44:41
7	Jeroen Op de Beek	429	Python 3	2024-09-23 17:54:40
8	Kelly Dance	461	Python 3	2022-09-28 06:41:01
9	Wu Mingkun	461	Python 3	2022-11-18 05:47:05
10	Josh Taylor	474	Python 3	2024-05-23 19:06:57

#	User	Length	Language	Date
1	Hidden user	490	Ruby	2019-10-02 23:01:19
2	Andreas Severin Hauch Trøstrup	605	Ruby	2023-03-05 17:21:16
3	Ivy Wang	756	Ruby	2023-01-17 07:10:44
4	Hidden user	1292	Ruby	2023-09-28 07:43:34

#	User	Length	Language	Date
1	Jianghua Wang	1339	Rust	2023-01-18 03:32:01
2	Hidden user	1547	Rust	2019-07-22 00:13:06
3	Bas Dirks	1851	Rust	2022-07-19 15:51:01
4	Alice Ryhl	2006	Rust	2022-06-17 17:41:21
5	Malthe Mathias Mølgaard Larsen	2015	Rust	2023-03-02 20:27:35
6	Joe Blower	2035	Rust	2025-08-07 02:45:19
7	Stephen Downward	2040	Rust	2020-10-12 18:46:02
8	Florian Nagel	2385	Rust	2019-12-19 22:43:42
9	Krish Lal	2507	Rust	2025-10-02 10:57:30
10	Logan Travis	2577	Rust	2025-10-20 05:52:54

Solution running time distribution