Problem A
Digital display — Problem Statistics

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Submissions	3508
Accepted submissions	1188
Submission ratio	33.87%
Authors	1128
Accepted authors	1009
Author ratio	89.45%

#	User	Runtime	Language	Date
1	Pavel Volgarev	0.02 s	C#	2013-10-02 08:06:19
2	Nguyễn Đại Dương	0.03 s	C#	2018-08-13 09:24:08
3	Niklas Huss	0.04 s	C#	2015-09-15 23:24:51
4	Duelene Olson	0.04 s	C#	2016-07-08 02:50:34
5	masosz	0.05 s	C#	2015-02-16 23:09:52
6	Philip Classon	0.05 s	C#	2018-12-08 17:25:24
7	Shiyi Du	0.05 s	C#	2019-09-17 02:21:17
8	Andriy Zyevakov	0.06 s	C#	2015-11-04 15:35:30
9	Nikolai Valkamo	0.06 s	C#	2021-12-31 17:53:56
10	Anders Lapiki	0.07 s	C#	2020-10-02 17:28:48

#	User	Runtime	Language	Date
1	David Cawthon	0.10 s	Common Lisp	2019-05-27 18:10:49

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.12 s	F#	2022-12-29 20:57:19

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Go	2019-09-04 19:18:13
2	Norbert Voelker	0.07 s	Go	2021-07-05 00:53:28
3	Rickard Bemm	0.07 s	Go	2023-03-05 01:09:39
4	Hidden user	0.12 s	Go	2016-08-24 22:46:25
5	Bassam Alfarhan	0.14 s	Go	2013-04-01 00:04:24

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Haskell	2015-01-19 08:15:43
2	Nicholas Tamburri	0.01 s	Haskell	2017-05-02 23:45:09
3	Isaac Arvestad	0.01 s	Haskell	2019-01-12 17:46:31
4	Hidden user	0.01 s	Haskell	2019-11-05 17:47:14
5	Emil Østergaard	0.01 s	Haskell	2020-10-02 16:58:49
6	Steinar Simonnes	0.01 s	Haskell	2023-11-06 20:40:22
7	David Wärn	0.02 s	Haskell	2015-05-30 22:33:29
8	Brent Yorgey	0.02 s	Haskell	2018-01-01 06:39:37
9	Garrett M Rowe	0.02 s	Haskell	2020-10-20 06:52:40
10	Øyvind Almli	0.02 s	Haskell	2021-10-12 21:42:05

#	User	Runtime	Language	Date
1	Simon Klein	0.06 s	Java	2011-10-30 22:20:04
2	Sven Rönnbäck	0.07 s	Java	2021-12-13 21:57:07
3	MOHAMMAD NAUFAL HAZIM BIN SAHARUDIN	0.07 s	Java	2025-06-05 20:20:32
4	Simon Xue	0.09 s	Java	2016-03-11 18:49:33
5	Nick Wu	0.09 s	Java	2016-08-09 09:05:11
6	Martijn Muijsers	0.09 s	Java	2016-10-11 23:07:52
7	Samuel Klingström	0.09 s	Java	2017-06-22 01:46:28
8	Steven Cheng	0.09 s	Java	2018-05-29 20:44:58
9	Patrik Berggren	0.10 s	Java	2011-09-30 20:54:44
10	Rodrigo Gómez	0.10 s	Java	2016-09-09 21:34:33

#	User	Runtime	Language	Date
1	Rizky Muliawan	0.12 s	JavaScript (Node.js)	2024-02-23 09:01:54
2	Hovhannes Kantuni	0.57 s	JavaScript (Node.js)	2020-11-22 22:24:09

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-03-13 11:22:10
2	Paul Leung	0.03 s	JavaScript (SpiderMonkey)	2017-06-05 21:05:50
3	Nguyễn Hùng Cường	0.03 s	JavaScript (SpiderMonkey)	2018-08-13 08:23:30
4	Peter Kedemo	0.04 s	JavaScript (SpiderMonkey)	2016-01-01 12:34:22
5	Christian Cederquist	0.04 s	JavaScript (SpiderMonkey)	2023-02-23 10:36:53
6	Dilawar Mahmood	0.05 s	JavaScript (SpiderMonkey)	2018-01-30 21:56:46
7	Ionel Hindorean	0.07 s	JavaScript (SpiderMonkey)	2016-11-12 14:09:47

#	User	Runtime	Language	Date
1	Timothy Gaede	0.75 s	Julia	2024-05-06 06:49:51

#	User	Runtime	Language	Date
1	Johnny Baloney	0.20 s	Kotlin	2021-12-09 12:49:46
2	Adam Rankin	0.31 s	Kotlin	2023-05-11 06:42:38
3	James WIlliams	0.33 s	Kotlin	2020-10-01 07:07:52
4	Neil Harmon	0.34 s	Kotlin	2019-10-30 14:08:05
5	Ola Sundell	0.37 s	Kotlin	2020-09-01 11:24:01

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2022-09-11 10:30:35

#	User	Runtime	Language	Date
1	Frank Farkas	0.02 s	PHP	2016-01-28 14:45:44
2	Jonas Lindenskov Nielsen	0.02 s	PHP	2019-11-01 11:21:23
3	Susanne Ragnemalm	0.12 s	PHP	2024-06-25 18:46:54

#	User	Runtime	Language	Date
1	Rhys Balevicius	0.04 s	Python 2	2017-11-01 06:44:39
2	Bas Jacobs	0.05 s	Python 2	2015-11-09 19:37:06
3	Fredrika Agestam	0.05 s	Python 2	2015-12-30 00:13:25
4	Abdul Zakkar	0.05 s	Python 2	2017-08-26 06:29:07
5	João Pedro Alvito	0.05 s	Python 2	2018-04-04 22:08:05
6	Yanmarshus Bachtiar	0.05 s	Python 2	2019-08-01 06:06:13
7	Paulo Bu	0.06 s	Python 2	2015-03-10 19:29:33
8	Christofer Ohlsson	0.06 s	Python 2	2015-04-14 12:01:36
9	Quan Huynh	0.06 s	Python 2	2015-09-14 13:44:49
10	Izzati Al Vandiar	0.06 s	Python 2	2015-11-09 15:42:23

#	User	Runtime	Language	Date
1	Lee Tze Han	0.02 s	Python 3	2019-10-26 10:58:06
2	Shiqi Xiao	0.03 s	Python 3	2014-10-03 22:27:08
3	Hidden user	0.03 s	Python 3	2014-10-18 13:30:10
4	Wayne	0.03 s	Python 3	2016-02-16 13:31:31
5	Christian Lindeström	0.03 s	Python 3	2016-08-18 01:47:26
6	Hidden user	0.03 s	Python 3	2017-10-02 12:18:58
7	Taylor Futernick	0.03 s	Python 3	2017-10-18 18:23:24
8	David Ludwig	0.03 s	Python 3	2017-11-18 01:42:40
9	Jason Cannon	0.03 s	Python 3	2018-03-10 00:50:27
10	Herman Bastesen	0.03 s	Python 3	2018-04-17 18:32:28

#	User	Runtime	Language	Date
1	Naoki Mizuno	0.06 s	Ruby	2016-04-09 14:19:28
2	Kieran Maharaj	0.07 s	Ruby	2021-01-06 01:27:22
3	Thomas Feld	0.08 s	Ruby	2023-08-29 09:15:07

#	User	Runtime	Language	Date
1	Rasmus Kaj	0.00 s	Rust	2021-04-07 20:59:53
2	Vincent Lagerros	0.00 s	Rust	2025-03-14 15:28:43
3	Isak Jägberg	0.01 s	Rust	2020-11-14 21:50:47
4	Paarth Madan	0.02 s	Rust	2019-09-17 03:13:26
5	David Rasch	0.02 s	Rust	2020-09-28 13:19:59
6	Hidden user	0.02 s	Rust	2021-02-25 08:30:01
7	Richard Neswold	0.03 s	Rust	2019-09-04 05:48:34
8	Franz Miltz	0.03 s	Rust	2019-12-01 15:01:11
9	Bas Dirks	0.03 s	Rust	2022-01-09 18:37:46

#	User	Length	Language	Date
1	Adam Evans	1118	C	2016-04-19 01:45:41
2	Pim Heeman	1354	C	2020-02-06 13:34:57
3	Simon Buan	1406	C	2020-03-29 21:20:43
4	Ng Wei Jie	1415	C	2020-02-17 19:55:12
5	Sebastian Oveland	1417	C	2018-03-06 17:07:04
6	Jón Steinn Elíasson	1452	C	2017-06-11 20:59:01
7	Hidden user	1452	C	2018-04-24 21:06:45
8	Ivan Sukma Hanindria	1452	C	2019-03-13 14:49:54
9	Jordan Estrada	1452	C	2019-09-17 01:56:13
10	Maanav Singh	1452	C	2020-03-16 22:12:56

#	User	Length	Language	Date
1	Göran Andersson	1255	C#	2022-05-26 20:31:12
2	Nikolai Valkamo	2749	C#	2021-12-31 17:53:56
3	Duelene Olson	3758	C#	2016-07-08 02:50:34
4	Nguyễn Đại Dương	3925	C#	2018-08-13 09:24:08
5	Thomas Hoffmann Kilbak	4330	C#	2020-10-02 18:37:33
6	masosz	4514	C#	2015-02-16 23:09:52
7	Aabir Bahaida	4700	C#	2017-08-31 12:10:42
8	Mikael Fiala-Lundström	4718	C#	2021-06-13 00:27:34
9	Kristoffer Højelse	4791	C#	2020-12-30 16:49:54
10	Jonas Røssum	4793	C#	2020-10-02 18:30:17

#	User	Length	Language	Date
1	Hyunjun Lee	835	C++	2022-10-20 21:15:46
2	tarflah	893	C++	2017-01-06 15:36:42
3	Jerome Leow	966	C++	2020-12-26 14:29:42
4	Hidden user	1019	C++	2024-02-13 12:05:47
5	Anatole HAGBE	1030	C++	2023-06-29 22:36:01
6	Kuan Wei Heng	1058	C++	2018-12-06 10:33:59
7	Rafael Herman	1059	C++	2018-02-06 15:41:10
8	Hidden user	1064	C++	2020-03-04 01:01:49
9	Mohsen Mahroos	1071	C++	2023-04-01 12:22:17
10	William Gan	1072	C++	2017-11-26 20:31:37

#	User	Length	Language	Date
1	David Cawthon	3151	Common Lisp	2019-05-27 18:10:49

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	2158	F#	2022-12-29 20:57:19

#	User	Length	Language	Date
1	Rickard Bemm	1484	Go	2023-03-05 01:09:39
2	Norbert Voelker	1554	Go	2021-07-05 00:32:52
3	Bassam Alfarhan	2643	Go	2013-04-01 00:04:24
4	Hidden user	4390	Go	2016-08-24 22:46:25
5	Hidden user	4439	Go	2019-09-04 19:18:13

#	User	Length	Language	Date
1	Li Jun	656	Haskell	2023-07-04 16:35:46
2	Brent Yorgey	1430	Haskell	2018-01-01 06:39:37
3	David Wärn	1658	Haskell	2015-05-30 22:33:29
4	Steinar Simonnes	2320	Haskell	2023-11-06 20:40:22
5	Øyvind Almli	2448	Haskell	2021-10-12 21:42:05
6	Emil Østergaard	2537	Haskell	2020-10-02 16:58:49
7	Isaac Arvestad	2693	Haskell	2019-01-12 17:46:31
8	Garrett M Rowe	3002	Haskell	2020-10-20 06:52:40
9	Nicholas Tamburri	3239	Haskell	2017-05-02 23:45:09
10	Hidden user	5010	Haskell	2015-01-19 08:15:43

#	User	Length	Language	Date
1	Doug Goodman	1170	Java	2017-10-02 16:12:23
2	Yacoub Seyni	1327	Java	2015-09-23 07:15:16
3	Adam Abdalla	1378	Java	2017-10-18 18:58:39
4	Manuel Rodriguez	1418	Java	2017-10-13 15:54:53
5	Hidden user	1444	Java	2016-09-11 22:29:09
6	Rodrigo Marcuschi	1516	Java	2015-11-09 12:47:12
7	Sebastian Cavallin	1544	Java	2017-10-13 15:33:02
8	Natalia Arroyo	1552	Java	2017-10-23 17:28:33
9	Isaac Fuenmayor	1559	Java	2017-10-18 15:14:00
10	Darrin Wiley	1561	Java	2020-05-23 19:24:00

#	User	Length	Language	Date
1	Hovhannes Kantuni	2257	JavaScript (Node.js)	2020-11-22 22:24:09
2	Rizky Muliawan	5408	JavaScript (Node.js)	2024-02-23 09:01:54

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	798	JavaScript (SpiderMonkey)	2016-03-13 11:22:10
2	Christian Cederquist	1035	JavaScript (SpiderMonkey)	2023-02-23 10:36:53
3	Peter Kedemo	1260	JavaScript (SpiderMonkey)	2016-01-01 12:34:22
4	Paul Leung	1338	JavaScript (SpiderMonkey)	2017-06-05 21:05:50
5	Nguyễn Hùng Cường	1359	JavaScript (SpiderMonkey)	2018-08-13 08:23:30
6	Dilawar Mahmood	3118	JavaScript (SpiderMonkey)	2018-01-30 21:56:46
7	Ionel Hindorean	3229	JavaScript (SpiderMonkey)	2016-11-12 14:09:47

#	User	Length	Language	Date
1	Timothy Gaede	1868	Julia	2024-05-06 06:49:51

#	User	Length	Language	Date
1	Adam Rankin	1775	Kotlin	2023-05-11 06:42:38
2	Johnny Baloney	1779	Kotlin	2021-12-09 12:46:07
3	Neil Harmon	1806	Kotlin	2019-10-30 14:08:05
4	Ola Sundell	2894	Kotlin	2020-09-01 11:24:01
5	James WIlliams	9306	Kotlin	2020-10-01 07:07:52

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1845	Pascal	2022-09-11 10:30:35

#	User	Length	Language	Date
1	Susanne Ragnemalm	1160	PHP	2024-06-25 18:46:54
2	Jonas Lindenskov Nielsen	1555	PHP	2019-11-01 11:43:32
3	Frank Farkas	2029	PHP	2016-01-28 14:45:44

#	User	Length	Language	Date
1	Thomas Feld	592	Python 2	2019-09-12 14:45:56
2	Lim Hong Hui Eugene	893	Python 2	2019-04-24 10:33:41
3	Bas Jacobs	962	Python 2	2015-11-09 19:37:06
4	Johan Lyts	1045	Python 2	2019-09-15 14:53:10
5	João Pedro Alvito	1055	Python 2	2018-04-04 22:08:05
6	Jesper Öqvist	1101	Python 2	2018-11-02 01:43:05
7	Catalin Popa	1142	Python 2	2019-01-18 18:32:12
8	Tore Norderud	1165	Python 2	2015-05-28 21:28:24
9	Abdul Zakkar	1208	Python 2	2017-08-26 06:29:07
10	Johann Ly	1252	Python 2	2018-08-14 22:54:31

#	User	Length	Language	Date
1	Kevin Gomez	251	Python 3	2023-08-28 02:57:24
2	Ahmed Chamseddine	367	Python 3	2023-09-07 14:08:56
3	Benjamin Z White	423	Python 3	2023-04-03 22:42:42
4	Hidden user	505	Python 3	2024-06-20 20:34:17
5	Henrik Hallbert	663	Python 3	2022-01-05 11:27:03
6	Kyle Wells	705	Python 3	2024-08-20 17:56:01
7	Hidden user	730	Python 3	2014-10-18 13:30:10
8	Einar Ágúst Árnason	742	Python 3	2014-11-26 15:01:57
9	Christian Lebeda	759	Python 3	2020-10-02 18:09:43
10	April Chao	766	Python 3	2021-12-07 10:09:26

#	User	Length	Language	Date
1	Thomas Feld	220	Ruby	2023-08-29 10:15:28
2	Naoki Mizuno	1051	Ruby	2016-04-09 14:19:28
3	Kieran Maharaj	2081	Ruby	2021-01-06 01:27:22

#	User	Length	Language	Date
1	Vincent Lagerros	1546	Rust	2025-03-14 15:28:43
2	Hidden user	1913	Rust	2021-02-25 08:30:01
3	Franz Miltz	2004	Rust	2019-12-01 15:01:11
4	David Rasch	2135	Rust	2020-09-28 13:19:59
5	Rasmus Kaj	2376	Rust	2020-03-07 23:29:46
6	Richard Neswold	2396	Rust	2019-09-04 05:48:34
7	Bas Dirks	2597	Rust	2022-01-09 18:37:46
8	Paarth Madan	3970	Rust	2019-09-17 03:13:26
9	Isak Jägberg	4634	Rust	2020-11-14 21:50:47

Solution running time distribution