Problem I
Opening Ceremony — Problem Statistics

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Submissions	7340
Accepted submissions	2221
Submission ratio	30.26%
Authors	2078
Accepted authors	1753
Author ratio	84.36%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2023-01-30 11:56:10
2	Eyleifur Bjarkason	0.00 s	C	2023-01-30 21:04:06
3	Garðar Ingvarsson	0.01 s	C	2019-02-24 17:11:13
4	Shuchi Zhang	0.01 s	C	2019-10-14 12:38:05
5	Sanjiv Dinakar	0.01 s	C	2024-01-17 17:22:29
6	Jeroen Bransen	0.02 s	C	2014-10-06 11:19:59
7	Erik Månsson	0.02 s	C	2014-12-08 02:45:19
8	Jonas Kylling	0.02 s	C	2014-12-13 18:51:15
9	Zining Zhu	0.02 s	C	2015-03-14 22:50:45
10	Eric McKnight	0.02 s	C	2017-10-24 05:07:17

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.05 s	C#	2016-10-27 20:04:54
2	Bas te Kolste	0.06 s	C#	2014-10-04 14:53:50
3	masosz	0.06 s	C#	2015-03-16 19:55:20
4	Ivan Joukov	0.06 s	C#	2015-10-03 03:32:34
5	Raul Kooter	0.06 s	C#	2016-12-12 20:15:01
6	traxex	0.06 s	C#	2024-05-06 18:15:16
7	Ayk Stepanyan	0.07 s	C#	2014-10-05 19:49:49
8	Nathan Andrews	0.07 s	C#	2024-09-06 23:46:00
9	Farbror Bieber	0.08 s	C#	2014-10-04 19:27:52
10	Elias Böök	0.08 s	C#	2020-02-02 13:35:00

#	User	Runtime	Language	Date
1	Andrei Bogdan Antonescu	0.01 s	C++	2014-10-04 11:17:36
2	Johan Sannemo	0.01 s	C++	2014-11-25 14:34:02
3	Paul Khadim	0.01 s	C++	2014-12-03 22:53:17
4	Mijia Jiang	0.01 s	C++	2015-03-14 18:25:23
5	Ragnar Groot Koerkamp	0.01 s	C++	2015-03-14 19:20:20
6	David Wärn	0.01 s	C++	2015-05-25 14:19:42
7	Kelly Milla	0.01 s	C++	2015-08-29 10:56:48
8	Hannes Bredberg	0.01 s	C++	2016-03-06 20:16:12
9	Hidden user	0.01 s	C++	2016-11-17 22:40:52
10	Tan Jun An	0.01 s	C++	2017-01-27 05:26:57

#	User	Runtime	Language	Date
1	Norbert Voelker	0.10 s	Go	2022-02-20 21:14:15
2	Fei Dong	0.10 s	Go	2022-09-20 15:09:35

#	User	Runtime	Language	Date
1	Brent Yorgey	0.32 s	Haskell	2017-10-17 04:20:33
2	Alessandro Bruni	0.33 s	Haskell	2019-04-13 17:46:07
3	Jørn Lode	0.33 s	Haskell	2022-09-28 20:52:00
4	grabarz	0.34 s	Haskell	2015-08-25 20:42:03
5	Johan Meier	0.34 s	Haskell	2016-12-26 13:14:39
6	Matthew Johnson	0.34 s	Haskell	2017-01-05 08:29:22
7	Esther Chong	0.34 s	Haskell	2017-11-17 12:56:50
8	David Zacek	0.34 s	Haskell	2021-05-11 14:53:51
9	Lukas Polacek	0.35 s	Haskell	2015-07-09 21:01:37

#	User	Runtime	Language	Date
1	Nguyễn Hùng Cường	0.07 s	Java	2018-10-08 11:03:00
2	Jack Fang	0.08 s	Java	2024-09-03 23:36:24
3	Øyvind Johannessen	0.10 s	Java	2018-11-17 22:38:31
4	Jan Štola	0.11 s	Java	2015-04-01 23:24:02
5	Khánh Nguyễn Tiến	0.11 s	Java	2018-10-06 09:02:25
6	Winston Cheung	0.12 s	Java	2017-01-07 00:24:15
7	Đức Phạm Hoài	0.12 s	Java	2018-10-11 10:58:18
8	Leon Wang	0.12 s	Java	2024-09-04 05:36:54
9	Samuel Klingström	0.13 s	Java	2017-06-09 20:24:23
10	Bjørn Dons	0.13 s	Java	2018-11-12 07:59:10

#	User	Runtime	Language	Date
1	Stephanie Keck	0.59 s	JavaScript (Node.js)	2020-02-23 00:38:29

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.04 s	JavaScript (SpiderMonkey)	2016-11-02 22:59:56
2	Christian Cederquist	0.05 s	JavaScript (SpiderMonkey)	2023-05-29 01:07:03

#	User	Runtime	Language	Date
1	Benjamin Laurence Erickson	0.43 s	Kotlin	2018-07-20 21:42:09
2	Jacob Huebner	0.47 s	Kotlin	2020-04-21 00:07:27
3	Aksel Holbek Sørbye	0.48 s	Kotlin	2022-10-01 16:22:58
4	Hidden user	0.50 s	Kotlin	2019-12-14 18:35:34
5	Sergey Jakobsen	0.53 s	Kotlin	2022-01-19 18:17:28
6	Phường Lên	0.56 s	Kotlin	2019-12-13 23:42:02
7	Min-Zheng Shieh	0.56 s	Kotlin	2021-03-05 07:01:07
8	0812268崇晉	0.56 s	Kotlin	2022-04-14 18:57:18
9	Adam Rankin	0.64 s	Kotlin	2023-09-13 02:29:10

#	User	Runtime	Language	Date
1	Caleb Austin	0.09 s	Lua	2024-09-07 00:01:15

#	User	Runtime	Language	Date
1	Hidden user	0.06 s	Python 3	2025-02-03 03:37:43
2	Markus Thomsen	0.07 s	Python 3	2019-04-12 16:04:09
3	Riko Jacob	0.07 s	Python 3	2019-04-15 12:21:43
4	Nguyên Vương	0.07 s	Python 3	2019-08-07 17:12:03
5	Alex Lewin	0.07 s	Python 3	2019-10-08 22:13:20
6	Sam Westigard	0.07 s	Python 3	2019-10-10 01:43:47
7	Thomas Vu	0.07 s	Python 3	2019-10-24 05:21:40
8	Henry Stoldt	0.07 s	Python 3	2019-10-26 19:48:01
9	Devioun Foskett	0.07 s	Python 3	2019-11-04 22:43:17
10	Dylan Kast	0.07 s	Python 3	2019-11-05 18:41:17

#	User	Runtime	Language	Date
1	Erik Rydbert	0.07 s	Ruby	2016-08-02 13:19:18
2	Hidden user	0.09 s	Ruby	2019-03-04 15:35:34
3	Thomas Marlowe	0.10 s	Ruby	2024-09-11 01:10:40
4	Thomas Feld	0.12 s	Ruby	2023-02-13 13:50:19

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-09-17 17:18:44
2	Michael Vesterli	0.01 s	Rust	2019-04-12 16:18:28
3	Peter Hrvola	0.01 s	Rust	2019-04-12 17:33:08
4	Klas af Geijerstam	0.01 s	Rust	2020-10-19 16:22:36
5	Eric Pinter	0.01 s	Rust	2022-05-07 18:49:16
6	Bas Dirks	0.01 s	Rust	2022-05-28 14:15:21
7	Zane Johnson	0.01 s	Rust	2022-09-27 21:34:29
8	Niklas Sandén	0.01 s	Rust	2022-09-29 19:03:30
9	Egor Kulikov	0.01 s	Rust	2025-02-05 12:15:04
10	Alessandro Bruni	0.02 s	Rust	2019-04-13 12:54:05

#	User	Length	Language	Date
1	Ivan Petrov	419	C	2019-05-31 12:53:09
2	Jeroen Bransen	471	C	2014-10-06 11:19:59
3	Erik Månsson	474	C	2014-12-08 02:50:07
4	Jonas Kylling	489	C	2014-12-13 18:51:15
5	ren hao	520	C	2023-03-04 10:09:31
6	Eric McKnight	567	C	2017-10-24 05:07:17
7	Daiqi Wu	569	C	2018-10-18 13:36:59
8	Hidden user	629	C	2020-06-25 11:13:56
9	Bryan Heryanto	820	C	2019-09-26 17:04:23
10	Shuchi Zhang	855	C	2019-10-14 12:38:05

#	User	Length	Language	Date
1	traxex	302	C#	2024-05-06 18:15:16
2	Nathan Andrews	496	C#	2024-09-06 23:46:00
3	Brian Scott	621	C#	2018-09-13 22:05:07
4	Raul Kooter	1006	C#	2016-12-12 20:15:01
5	Bas te Kolste	1103	C#	2014-10-04 14:53:50
6	Farbror Bieber	1247	C#	2014-10-04 19:27:52
7	masosz	1251	C#	2015-03-16 19:55:20
8	Holger Borum	1343	C#	2019-04-14 11:24:16
9	Elias Böök	1471	C#	2020-02-02 13:35:00
10	Marit Hellestø	1739	C#	2018-08-22 20:29:43

#	User	Length	Language	Date
1	Zane Yu	233	C++	2019-02-03 15:32:43
2	Yui Huang	248	C++	2023-03-03 13:16:29
3	Elias Lolck	250	C++	2023-01-03 11:58:45
4	蘇智海	253	C++	2022-03-04 12:46:34
5	William Gan	258	C++	2017-08-12 17:46:47
6	Leonardo Lima	266	C++	2024-04-25 16:35:18
7	Matteo Canton	266	C++	2023-12-08 09:27:55
8	Camila Maeda Shida	271	C++	2022-06-29 22:04:03
9	Jannik Olbrich	274	C++	2019-07-07 14:21:24
10	Paweł Burzyński	276	C++	2018-10-17 17:43:38

#	User	Length	Language	Date
1	Norbert Voelker	673	Go	2022-02-20 21:14:15
2	Fei Dong	1396	Go	2022-09-20 15:09:35

#	User	Length	Language	Date
1	Jørn Lode	193	Haskell	2022-09-28 20:54:24
2	Brent Yorgey	306	Haskell	2017-10-17 04:20:33
3	Lukas Polacek	307	Haskell	2015-07-09 21:01:37
4	Esther Chong	391	Haskell	2017-11-17 12:56:50
5	Matthew Johnson	474	Haskell	2017-01-05 08:29:22
6	grabarz	483	Haskell	2015-08-25 20:42:03
7	Alessandro Bruni	537	Haskell	2019-04-13 17:46:07
8	David Zacek	625	Haskell	2021-05-11 14:52:15
9	Johan Meier	763	Haskell	2016-12-26 13:14:39

#	User	Length	Language	Date
1	Hidden user	387	Java	2023-10-18 01:10:35
2	John Edwards	394	Java	2019-02-08 23:15:56
3	Hidden user	402	Java	2014-10-04 11:22:56
4	Brennan Cleland	414	Java	2023-05-24 20:25:34
5	Nam Phan Thành	420	Java	2018-10-10 10:21:45
6	Måns Magnusson	428	Java	2016-03-08 23:49:44
7	Hidden user	430	Java	2019-01-29 04:24:20
8	Hidden user	445	Java	2015-06-14 16:12:25
9	Qritel Abdelilah	448	Java	2018-05-03 16:29:09
10	Steve Tate	457	Java	2020-03-27 15:05:06

#	User	Length	Language	Date
1	Stephanie Keck	8334	JavaScript (Node.js)	2020-02-23 00:38:29

#	User	Length	Language	Date
1	Christian Cederquist	385	JavaScript (SpiderMonkey)	2023-05-29 01:07:03
2	Bjørn Chr. Soltvedt	575	JavaScript (SpiderMonkey)	2016-11-02 22:59:56

#	User	Length	Language	Date
1	Min-Zheng Shieh	244	Kotlin	2021-03-05 07:01:07
2	0812268崇晉	253	Kotlin	2022-04-14 18:57:18
3	Sergey Jakobsen	332	Kotlin	2022-01-19 18:17:28
4	Aksel Holbek Sørbye	368	Kotlin	2022-10-01 16:35:14
5	Jacob Huebner	397	Kotlin	2020-04-21 00:07:27
6	Adam Rankin	447	Kotlin	2023-09-13 02:29:10
7	Benjamin Laurence Erickson	456	Kotlin	2018-07-20 21:42:09
8	Phường Lên	478	Kotlin	2019-12-13 23:42:02
9	Hidden user	1607	Kotlin	2019-12-14 18:35:34

#	User	Length	Language	Date
1	Caleb Austin	609	Lua	2024-09-07 00:01:15

#	User	Length	Language	Date
1	Clement Oh	80	Python 3	2023-05-31 14:07:08
2	Sander Oppen	91	Python 3	2024-09-29 15:17:17
3	Benjamin Z White	92	Python 3	2023-05-16 11:10:12
4	Pedro Sugiyama	94	Python 3	2024-09-13 03:25:33
5	Varun Asuri	94	Python 3	2024-09-13 03:26:09
6	Peter Stauder	96	Python 3	2023-03-04 21:02:07
7	Lennart Meyling	100	Python 3	2024-08-12 22:49:59
8	Hidden user	101	Python 3	2024-02-14 15:12:48
9	Charles Ancheta	103	Python 3	2023-03-24 11:41:17
10	Adil Rasiyani	107	Python 3	2023-02-17 22:20:22

#	User	Length	Language	Date
1	Thomas Feld	55	Ruby	2023-02-13 13:50:19
2	Thomas Marlowe	62	Ruby	2024-09-11 01:10:40
3	Hidden user	168	Ruby	2019-03-04 15:34:33
4	Erik Rydbert	922	Ruby	2016-08-02 13:19:18

#	User	Length	Language	Date
1	Bas Dirks	492	Rust	2022-05-28 14:16:31
2	Peter Hrvola	535	Rust	2019-04-12 17:33:08
3	Michael Vesterli	665	Rust	2019-04-12 16:18:28
4	Zane Johnson	726	Rust	2022-09-27 21:34:29
5	Valdimar Örn	809	Rust	2023-02-07 12:45:44
6	Alessandro Bruni	950	Rust	2019-04-13 12:54:05
7	Mckinley Xie	1101	Rust	2025-01-31 22:52:30
8	許哲瑋	1423	Rust	2024-03-14 10:35:35
9	Eric Pinter	1613	Rust	2022-05-07 18:49:16
10	Danil Platonov	1944	Rust	2022-02-27 00:51:14

Solution running time distribution