Problem A
Scrolling Sign — Problem Statistics

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Submissions	1576
Accepted submissions	683
Submission ratio	43.34%
Authors	669
Full solves [?]	586
Full solve Ratio	87.59%

#	User	Runtime	Language	Date
1	Sabit Zahin	0.00 s	C	2015-10-20 18:13:10
2	James Kozlowski	0.00 s	C	2018-04-06 23:41:46
3	Joel Scarinius	0.00 s	C	2023-09-14 18:16:52

#	User	Runtime	Language	Date
1	Austin Crapo	0.03 s	C#	2020-05-04 22:40:48
2	Paulo Bu	0.04 s	C#	2015-04-16 09:24:00
3	Murtadha Al-Tameemi	0.04 s	C#	2018-03-28 11:29:33
4	Collier Watkins	0.04 s	C#	2019-04-15 21:25:09
5	Ahmad Barhamje	0.05 s	C#	2022-12-01 12:09:12
6	Ziga Staresinic	0.30 s	C#	2016-12-06 19:10:13
7	Robert Warnestam	0.97 s	C#	2021-04-23 09:55:08

#	User	Runtime	Language	Date
1	Philippos Boon Alexaki	0.03 s	Common Lisp	2019-11-22 09:49:32
2	David Cawthon	0.04 s	Common Lisp	2019-06-01 21:08:05

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2021-09-26 23:31:11
2	Ian Howell	0.05 s	Go	2019-01-18 18:54:21

#	User	Runtime	Language	Date
1	Øyvind Almli	0.00 s	Haskell	2023-01-11 14:19:40
2	Steinar Simonnes	0.00 s	Haskell	2025-01-15 13:37:45
3	Brent Yorgey	0.01 s	Haskell	2018-12-17 16:15:41
4	Mason Barnhill	0.01 s	Haskell	2023-05-14 00:24:01
5	Kristoffer Andersen	0.06 s	Haskell	2016-02-09 16:30:03

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.04 s	Java	2025-03-23 06:25:51
2	Mouad Naciri	0.06 s	Java	2016-08-14 17:54:29
3	Micah Stairs	0.06 s	Java	2016-08-16 19:03:07
4	Martijn Muijsers	0.06 s	Java	2017-03-04 11:32:45
5	Taras Romanyuk	0.06 s	Java	2024-10-25 21:08:42
6	Mohammad Naufal Hazim Bin Saharudin	0.06 s	Java	2025-06-11 05:45:44
7	Erik Odenman	0.07 s	Java	2014-01-23 16:33:08
8	Hidden user	0.07 s	Java	2015-09-22 08:35:09
9	Michael Sullivan	0.07 s	Java	2016-02-10 02:22:16
10	Nick Wu	0.07 s	Java	2017-06-18 09:24:38

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-12-03 13:18:05
2	Peter Kedemo	0.02 s	JavaScript (SpiderMonkey)	2016-09-17 17:55:57
3	Jimmy Gustafsson	0.03 s	JavaScript (SpiderMonkey)	2022-08-23 10:07:28
4	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-06-03 18:37:35

#	User	Runtime	Language	Date
1	Timothy Gaede	0.62 s	Julia	2024-05-28 17:45:32

#	User	Runtime	Language	Date
1	Adam Rankin	0.23 s	Kotlin	2023-09-25 22:22:30
2	Hidden user	0.28 s	Kotlin	2020-03-07 21:24:05
3	Hidden user	0.29 s	Kotlin	2019-11-16 18:47:45
4	Ola Sundell	0.38 s	Kotlin	2019-11-09 10:40:27

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-02-25 11:46:05

#	User	Runtime	Language	Date
1	Connor Billings	0.01 s	PHP	2020-07-25 13:50:22

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.03 s	Python 2	2015-05-03 06:05:17
2	Hidden user	0.03 s	Python 2	2016-07-11 14:03:07
3	Nathan Villanueva	0.03 s	Python 2	2017-04-21 21:38:06
4	Juliang Li	0.03 s	Python 2	2018-02-19 23:53:25
5	Cian Ruane	0.03 s	Python 2	2018-09-02 02:14:43
6	Jesper Öqvist	0.03 s	Python 2	2018-11-11 05:26:10
7	Hermon Mulat	0.03 s	Python 2	2018-12-22 22:17:09
8	Måns Magnusson	0.03 s	Python 2	2019-05-28 21:13:08
9	Steven Tran	0.04 s	Python 2	2018-04-20 21:58:28
10	Andreas Björklund	0.04 s	Python 2	2019-06-05 14:06:08

#	User	Runtime	Language	Date
1	Frederik Aarup Lauridsen	0.02 s	Python 3	2016-08-19 11:12:06
2	Christian Lindeström	0.02 s	Python 3	2016-08-28 17:03:24
3	Patrik Lilja	0.02 s	Python 3	2016-09-27 19:10:43
4	Murtadha Al-Tameemi	0.02 s	Python 3	2018-03-28 11:54:43
5	Alain Dupuis	0.02 s	Python 3	2018-04-07 15:44:59
6	Arnav Sastry	0.02 s	Python 3	2018-04-09 02:17:28
7	Tomaž Grmek	0.02 s	Python 3	2018-05-09 07:11:56
8	mike	0.02 s	Python 3	2019-07-09 19:42:05
9	Charley Sheaffer	0.02 s	Python 3	2019-11-21 16:05:45
10	Jonas Nockert	0.03 s	Python 3	2015-11-10 16:33:43

#	User	Runtime	Language	Date
1	Thomas Feld	0.08 s	Ruby	2023-05-16 11:20:52

#	User	Runtime	Language	Date
1	Oskar Lindén	0.00 s	Rust	2022-08-23 11:34:13
2	藤原潮人	0.00 s	Rust	2023-06-13 02:07:49
3	Ryosuke Takahashi	0.00 s	Rust	2023-06-13 11:42:30
4	Vincent Lagerros	0.00 s	Rust	2024-05-20 15:29:22
5	Iwancof	0.01 s	Rust	2023-06-06 16:42:40
6	Bas Dirks	0.02 s	Rust	2022-01-23 06:10:34

#	User	Length	Language	Date
1	Sabit Zahin	1037	C	2015-10-20 18:13:10
2	James Kozlowski	1316	C	2018-04-06 23:41:46
3	Joel Scarinius	1387	C	2023-09-14 18:16:52

#	User	Length	Language	Date
1	Collier Watkins	1236	C#	2019-04-15 21:25:09
2	Murtadha Al-Tameemi	1277	C#	2018-03-28 11:29:33
3	Paulo Bu	1279	C#	2015-04-16 09:24:00
4	Ahmad Barhamje	1288	C#	2022-12-01 12:09:12
5	Ziga Staresinic	2422	C#	2016-12-06 19:10:13
6	Austin Crapo	2425	C#	2020-05-04 22:40:48
7	Robert Warnestam	4455	C#	2021-04-23 09:55:08

#	User	Length	Language	Date
1	Chase Hinesman	378	C++	2018-04-20 21:06:18
2	Reginald Frank	412	C++	2019-04-21 03:42:59
3	Adrien	417	C++	2024-05-18 11:43:07
4	Herman Karlsson	419	C++	2015-06-02 06:52:26
5	Markus Mathiasen	433	C++	2022-10-09 07:29:49
6	David Venhoek	442	C++	2016-02-16 10:10:48
7	Claire Duong	459	C++	2018-04-20 22:01:24
8	Johan Wind	461	C++	2016-08-07 13:02:41
9	Lorena Hantig	469	C++	2021-11-26 07:31:13
10	Zane Yu	473	C++	2019-01-06 06:41:28

#	User	Length	Language	Date
1	David Cawthon	942	Common Lisp	2019-06-01 21:08:05
2	Philippos Boon Alexaki	1016	Common Lisp	2019-11-22 09:49:32

#	User	Length	Language	Date
1	Ian Howell	592	Go	2019-01-18 18:54:21
2	Norbert Voelker	1012	Go	2021-09-26 23:33:55

#	User	Length	Language	Date
1	Mason Barnhill	440	Haskell	2023-05-14 00:24:01
2	Øyvind Almli	741	Haskell	2023-01-11 14:35:23
3	Kristoffer Andersen	836	Haskell	2016-02-09 16:30:03
4	Steinar Simonnes	913	Haskell	2025-01-15 13:38:13
5	Brent Yorgey	1869	Haskell	2018-12-17 16:15:41

#	User	Length	Language	Date
1	Daniel West	569	Java	2018-02-05 19:46:12
2	Lior Barak	607	Java	2018-02-05 20:01:34
3	Doug Goodman	631	Java	2018-04-24 21:27:26
4	Alex Rutledge	657	Java	2018-02-05 20:09:51
5	Aaron Michael	775	Java	2017-11-07 18:51:19
6	Natalie Longtin	788	Java	2018-02-05 19:34:29
7	Crystal Sharpe	817	Java	2020-07-17 04:28:02
8	Jan Štola	829	Java	2015-05-27 16:36:07
9	Kyle Workman	868	Java	2018-09-24 22:04:38
10	Zhuowei Wen	888	Java	2022-08-27 14:39:27

#	User	Length	Language	Date
1	Jimmy Gustafsson	305	JavaScript (SpiderMonkey)	2022-08-23 10:07:28
2	Bjørn Chr. Soltvedt	523	JavaScript (SpiderMonkey)	2016-12-03 13:18:05
3	Christian Pilegaard Cederquist	535	JavaScript (SpiderMonkey)	2023-06-03 18:37:35
4	Peter Kedemo	613	JavaScript (SpiderMonkey)	2016-09-17 17:55:57

#	User	Length	Language	Date
1	Timothy Gaede	1089	Julia	2024-05-28 17:45:32

#	User	Length	Language	Date
1	Hidden user	638	Kotlin	2020-03-07 21:24:05
2	Adam Rankin	890	Kotlin	2023-09-25 22:22:30
3	Hidden user	932	Kotlin	2019-11-16 18:47:45
4	Ola Sundell	2990	Kotlin	2019-11-09 10:40:27

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1229	Pascal	2018-02-25 11:46:05

#	User	Length	Language	Date
1	Connor Billings	663	PHP	2020-07-25 13:50:22

#	User	Length	Language	Date
1	Thomas Feld	206	Python 2	2019-10-16 06:46:58
2	Måns Magnusson	301	Python 2	2019-05-28 21:13:08
3	Nathan Villanueva	373	Python 2	2017-04-21 21:38:06
4	Hidden user	377	Python 2	2016-07-11 14:03:07
5	Andreas Björklund	399	Python 2	2019-06-05 14:06:08
6	Jesper Öqvist	467	Python 2	2018-11-11 05:26:10
7	Johan Lyts	484	Python 2	2020-02-23 13:14:34
8	Christofer Ohlsson	522	Python 2	2015-05-03 06:05:17
9	Steven Tran	596	Python 2	2018-04-20 21:58:28
10	Hermon Mulat	597	Python 2	2018-12-22 22:17:09

#	User	Length	Language	Date
1	Benjamin Z White	163	Python 3	2023-05-15 14:27:18
2	Hidden user	182	Python 3	2022-12-05 00:23:05
3	Ahmed Chamseddine	188	Python 3	2024-02-08 12:24:50
4	Yong Mao	191	Python 3	2023-07-14 16:12:10
5	Peter Stauder	194	Python 3	2022-11-05 19:08:33
6	Oskar Haarklou Veileborg	220	Python 3	2020-03-25 07:50:02
7	Kelly Dance	237	Python 3	2023-07-23 11:55:41
8	Jason Clarke	244	Python 3	2024-05-10 20:26:35
9	Prateek Bhakta	260	Python 3	2023-10-18 20:42:38
10	Nguyen Cao Duy	279	Python 3	2024-04-02 17:38:00

#	User	Length	Language	Date
1	Thomas Feld	100	Ruby	2023-05-17 06:33:34

#	User	Length	Language	Date
1	Oskar Lindén	1049	Rust	2022-08-23 11:34:13
2	藤原潮人	1237	Rust	2023-06-13 02:07:49
3	Bas Dirks	1384	Rust	2022-01-23 06:10:34
4	Ryosuke Takahashi	3447	Rust	2023-06-13 11:42:30
5	Vincent Lagerros	6722	Rust	2024-05-20 15:29:22
6	Iwancof	20878	Rust	2023-06-06 16:42:40

Solution running time distribution