Problem I
Judging Troubles — Problem Statistics

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Submissions	8135
Accepted submissions	3259
Submission ratio	40.06%
Authors	2904
Accepted authors	2522
Author ratio	86.85%

#	User	Runtime	Language	Date
1	Viktor Brange	0.04 s	C	2014-12-06 23:57:07
2	Stefano Cordio	0.04 s	C	2016-08-08 09:55:43
3	Dan Kral	0.05 s	C	2014-11-30 11:09:18
4	Alexander Heilmeier	0.07 s	C	2015-12-11 10:59:11
5	Lawrence Li	0.07 s	C	2016-02-05 05:44:34
6	Abdelmajid Essofi	0.07 s	C	2016-09-09 00:57:22
7	Ivan Petrov	0.07 s	C	2017-11-16 10:29:44
8	Hidden user	0.07 s	C	2022-11-27 11:53:02
9	Sami Al Chalati	0.10 s	C	2024-09-30 17:34:09
10	Sambit Palit	0.37 s	C	2020-11-01 23:31:16

#	User	Runtime	Language	Date
1	Joe Amenta	0.05 s	C#	2018-05-24 13:45:51
2	Bas te Kolste	0.08 s	C#	2014-12-06 10:54:08
3	Alexander Biggs	0.08 s	C#	2015-09-23 03:43:32
4	Andrzej Krajniak	0.08 s	C#	2016-08-04 23:33:45
5	Raja Sanjeev Kumar Nakka	0.09 s	C#	2016-04-24 03:08:37
6	Martijn Schuurmans	0.09 s	C#	2016-09-27 14:45:39
7	Ger Saris	0.09 s	C#	2016-12-14 18:34:46
8	Jerker Sandsten	0.09 s	C#	2017-06-19 16:03:21
9	Paolo Mikulin Seravalli	0.09 s	C#	2018-11-08 23:25:42
10	Jacob Aufdenberg	0.09 s	C#	2019-05-15 19:58:00

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	C++	2017-08-01 03:54:34
2	Noah Weninger	0.02 s	C++	2018-12-13 00:49:06
3	Grae Yeandle	0.03 s	C++	2017-01-22 09:03:11
4	Martin Stensgård	0.03 s	C++	2017-05-21 11:15:04
5	Rafaël Bocquet	0.04 s	C++	2015-10-09 10:41:16
6	Yassin Bahloul	0.04 s	C++	2017-10-04 18:40:02
7	David Trettin	0.04 s	C++	2018-12-18 23:20:15
8	Frank Endriss	0.04 s	C++	2019-12-18 14:33:58
9	Han Moe Htet	0.04 s	C++	2020-05-28 10:14:06
10	Zhu Zikun	0.04 s	C++	2020-10-26 13:51:37

#	User	Runtime	Language	Date
1	Hidden user	0.16 s	Go	2014-12-16 17:46:13
2	Norbert Voelker	0.18 s	Go	2021-07-29 23:35:21
3	Krzysztof Gibuła	0.23 s	Go	2021-04-14 23:38:46
4	Fikri Sundayana	0.42 s	Go	2019-02-16 19:12:07

#	User	Runtime	Language	Date
1	Hidden user	0.20 s	Haskell	2022-04-27 13:17:33
2	Jan Hrček	0.37 s	Haskell	2025-01-08 16:50:48
3	Lars Tveito	1.52 s	Haskell	2015-07-21 19:15:27
4	Qi Ji	1.53 s	Haskell	2018-07-10 01:07:15
5	Joshua Ji	1.55 s	Haskell	2022-06-13 23:19:40
6	Markus Läll	1.57 s	Haskell	2015-03-07 14:55:54
7	Birk Tjelmeland	1.58 s	Haskell	2017-11-05 22:26:05
8	Brandon Tang	1.58 s	Haskell	2023-05-30 21:41:07
9	Dario Vidas	1.59 s	Haskell	2016-02-04 23:14:39
10	Jeffrey Rosenbluth	1.66 s	Haskell	2018-01-22 20:09:23

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.17 s	Java	2022-05-20 21:23:28
2	懶羊	0.19 s	Java	2015-03-29 07:00:38
3	Harsh Khandelwal	0.19 s	Java	2016-09-29 00:30:43
4	Ethan Toney	0.19 s	Java	2017-09-23 06:57:51
5	Noha Khater	0.20 s	Java	2014-11-30 11:27:24
6	Marius de Vogel	0.20 s	Java	2015-11-26 21:17:46
7	Nigel Liebers	0.20 s	Java	2016-09-26 13:12:04
8	Natalie Longtin	0.20 s	Java	2017-11-14 00:03:46
9	Ada Clevinger	0.20 s	Java	2018-06-26 00:51:37
10	Ali Zarrini	0.20 s	Java	2018-10-31 21:26:47

#	User	Runtime	Language	Date
1	Sander Hellesø	0.26 s	JavaScript (Node.js)	2019-04-24 09:50:55
2	Christoffer Karlsson	0.31 s	JavaScript (Node.js)	2018-07-21 21:48:56
3	Khin Nyunt	0.64 s	JavaScript (Node.js)	2021-11-21 05:00:25

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.19 s	JavaScript (SpiderMonkey)	2016-03-13 10:29:41
2	David Martín-González	0.20 s	JavaScript (SpiderMonkey)	2014-11-30 12:51:00
3	Paul Leung	0.21 s	JavaScript (SpiderMonkey)	2017-07-28 19:05:15
4	Peter Kedemo	0.24 s	JavaScript (SpiderMonkey)	2016-01-04 19:13:22
5	Christian Cederquist	0.25 s	JavaScript (SpiderMonkey)	2023-04-10 10:33:36
6	Zach Tschetter	0.27 s	JavaScript (SpiderMonkey)	2023-06-19 21:53:06
7	Andrea Bianchessi	0.39 s	JavaScript (SpiderMonkey)	2017-11-07 12:05:08

#	User	Runtime	Language	Date
1	Timothy Gaede	0.64 s	Julia	2024-05-05 05:41:42

#	User	Runtime	Language	Date
1	Hidden user	0.36 s	Kotlin	2017-12-06 16:42:14
2	Frederik Bjørn Groben Nielsen	0.38 s	Kotlin	2018-09-16 13:58:13
3	Jahid Hasan Imon	0.39 s	Kotlin	2020-09-11 13:23:11
4	Adam Rankin	0.45 s	Kotlin	2023-09-14 19:30:59
5	Phường Lên	0.84 s	Kotlin	2019-11-06 03:19:12

#	User	Runtime	Language	Date
1	Caleb Austin	0.12 s	Lua	2024-10-25 22:18:43

#	User	Runtime	Language	Date
1	Jeff Cashion	0.12 s	PHP	2018-04-27 20:51:08
2	Renate	0.12 s	PHP	2021-07-17 12:54:13
3	Susanne Ragnemalm	0.27 s	PHP	2018-05-26 21:37:10

#	User	Runtime	Language	Date
1	Hans Rusten	0.08 s	Python 2	2015-12-07 13:46:06
2	Justin Su	0.08 s	Python 2	2017-09-19 06:44:53
3	Christofer Ohlsson	0.09 s	Python 2	2015-03-29 19:10:30
4	Juliang Li	0.09 s	Python 2	2018-03-02 22:23:02
5	Klas Björkqvist	0.10 s	Python 2	2014-11-30 11:13:45
6	Patrik Lilja	0.10 s	Python 2	2015-03-22 11:51:30
7	Hidden user	0.10 s	Python 2	2018-03-02 22:12:49
8	Johannes Agestam	0.11 s	Python 2	2015-08-19 11:03:03
9	Greg Hamerly	0.11 s	Python 2	2015-12-19 05:51:58
10	Yanmarshus Bachtiar	0.11 s	Python 2	2020-09-07 14:03:42

#	User	Runtime	Language	Date
1	Petr	0.09 s	Python 3	2025-06-01 11:37:40
2	Pan Boyi	0.10 s	Python 3	2022-10-15 05:51:57
3	Francesco Della Vedova	0.11 s	Python 3	2016-02-03 22:52:51
4	Jamie Kihira	0.11 s	Python 3	2018-10-03 07:40:21
5	Fred Bloggs	0.11 s	Python 3	2019-04-04 09:52:05
6	Massimo Meneghello	0.12 s	Python 3	2018-12-07 16:10:36
7	Ocram Esah	0.12 s	Python 3	2022-06-13 21:23:24
8	Justin Su	0.13 s	Python 3	2017-09-19 01:18:42
9	Aaron Lamoreaux	0.13 s	Python 3	2018-11-24 19:00:43
10	Melvin Yang	0.13 s	Python 3	2020-10-17 14:15:26

#	User	Runtime	Language	Date
1	Hidden user	0.20 s	Ruby	2019-02-16 23:56:08
2	Naoki Mizuno	0.21 s	Ruby	2016-04-11 20:30:48
3	Clement Oh	0.21 s	Ruby	2023-12-09 06:14:33
4	Martin Larsson	0.25 s	Ruby	2017-03-03 21:05:56
5	Hidden user	0.26 s	Ruby	2017-07-10 23:53:09
6	Thomas Feld	0.26 s	Ruby	2023-03-29 14:28:52
7	Erik Rydbert	0.50 s	Ruby	2016-07-26 09:54:00

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2024-08-07 18:53:38
2	Henry Jacobson	0.06 s	Rust	2022-10-24 18:32:29
3	Fiat Driver	0.06 s	Rust	2023-07-11 11:44:38
4	Bas Dirks	0.07 s	Rust	2022-02-21 18:10:04
5	Sebastián Solari	0.08 s	Rust	2020-07-13 08:50:52
6	Egor Kulikov	0.08 s	Rust	2025-01-08 13:56:31

#	User	Length	Language	Date
1	Ivan Petrov	702	C	2017-11-16 10:29:44
2	Dan Kral	714	C	2014-11-30 11:09:18
3	Lawrence Li	983	C	2016-02-05 05:44:34
4	Sami Al Chalati	1000	C	2024-09-30 17:34:09
5	Abdelmajid Essofi	1011	C	2016-09-09 00:57:22
6	Alexander Heilmeier	1474	C	2015-12-11 10:59:11
7	Viktor Brange	1502	C	2014-12-06 23:57:07
8	Hidden user	1643	C	2022-11-27 11:53:02
9	Sambit Palit	1800	C	2020-11-01 23:31:16
10	Stefano Cordio	23238	C	2016-08-01 18:29:19

#	User	Length	Language	Date
1	traxex	433	C#	2024-05-06 16:15:19
2	florist swe	481	C#	2024-12-14 23:42:34
3	Nathan Andrews	751	C#	2024-10-25 22:12:07
4	Marek Bina	763	C#	2019-02-21 09:12:01
5	Nabeel Mirza	838	C#	2023-10-30 05:58:40
6	Martijn Schuurmans	917	C#	2016-09-27 14:45:39
7	Jerker Sandsten	1024	C#	2017-06-19 16:03:21
8	Jacob Aufdenberg	1065	C#	2019-05-15 19:58:00
9	Raja Sanjeev Kumar Nakka	1084	C#	2016-04-24 03:08:37
10	Aljaz Penca	1091	C#	2022-03-05 22:37:19

#	User	Length	Language	Date
1	Robin Lee	276	C++	2014-11-30 11:02:17
2	Johan Wind	304	C++	2015-09-15 14:27:26
3	Niklas Baumstark	306	C++	2014-12-02 00:37:50
4	William Granados	308	C++	2015-10-17 12:56:06
5	Huy Nguyễn Võ	312	C++	2017-08-08 09:34:23
6	Rowan Lee	324	C++	2015-02-28 20:26:49
7	Tony Tony	326	C++	2017-12-30 11:35:11
8	Chase Hinesman	331	C++	2018-03-02 22:41:51
9	Shubham Pandey	333	C++	2015-07-26 16:47:52
10	Tran Thanh Quang	333	C++	2017-10-11 16:34:42

#	User	Length	Language	Date
1	Krzysztof Gibuła	567	Go	2021-04-14 23:38:46
2	Fikri Sundayana	606	Go	2019-02-16 19:12:07
3	Hidden user	630	Go	2014-12-16 17:46:13
4	Norbert Voelker	872	Go	2021-07-29 23:35:21

#	User	Length	Language	Date
1	Jan Hrček	240	Haskell	2025-01-08 16:50:48
2	Birk Tjelmeland	280	Haskell	2017-11-05 22:26:05
3	Brandon Tang	396	Haskell	2023-05-30 21:41:07
4	Lars Tveito	401	Haskell	2015-07-21 19:15:27
5	Brent Yorgey	402	Haskell	2017-09-30 23:15:47
6	Qi Ji	426	Haskell	2018-07-10 01:07:15
7	Dario Vidas	573	Haskell	2016-02-04 23:14:39
8	Jeffrey Rosenbluth	657	Haskell	2018-01-22 20:09:23
9	Joshua Ji	731	Haskell	2022-06-13 23:19:40
10	David Spies	1113	Haskell	2014-11-30 11:32:12

#	User	Length	Language	Date
1	Doug Goodman	522	Java	2018-01-15 17:49:38
2	Natalie Longtin	624	Java	2017-11-14 00:03:46
3	Drew Hoover	651	Java	2015-09-03 05:17:27
4	Max Lindqvist	652	Java	2016-10-04 10:00:40
5	Cormac McCarthy	658	Java	2015-03-07 19:22:25
6	Hidden user	664	Java	2014-11-30 11:12:42
7	Lee YM	668	Java	2016-08-16 04:29:04
8	Siddharth Adusumelli	671	Java	2022-10-13 03:44:28
9	Hanyu Ning	682	Java	2024-10-20 20:19:21
10	Nguyễn Mạnh Phúc	687	Java	2015-10-14 03:50:32

#	User	Length	Language	Date
1	Christoffer Karlsson	808	JavaScript (Node.js)	2018-07-21 21:48:56
2	Khin Nyunt	1140	JavaScript (Node.js)	2021-11-21 05:00:25
3	Sander Hellesø	1180	JavaScript (Node.js)	2019-04-24 09:50:55

#	User	Length	Language	Date
1	Christian Cederquist	271	JavaScript (SpiderMonkey)	2023-04-10 10:33:36
2	Zach Tschetter	299	JavaScript (SpiderMonkey)	2023-06-19 21:53:06
3	Bjørn Chr. Soltvedt	327	JavaScript (SpiderMonkey)	2016-03-13 10:29:41
4	Peter Kedemo	463	JavaScript (SpiderMonkey)	2016-01-04 19:13:22
5	David Martín-González	464	JavaScript (SpiderMonkey)	2014-11-30 12:51:00
6	Paul Leung	480	JavaScript (SpiderMonkey)	2017-07-28 19:05:15
7	Andrea Bianchessi	517	JavaScript (SpiderMonkey)	2017-11-07 12:05:08

#	User	Length	Language	Date
1	Timothy Gaede	812	Julia	2024-05-05 05:41:42

#	User	Length	Language	Date
1	Hidden user	547	Kotlin	2017-12-06 16:42:14
2	Frederik Bjørn Groben Nielsen	594	Kotlin	2018-09-16 13:58:13
3	Adam Rankin	663	Kotlin	2023-09-14 19:30:59
4	Phường Lên	1108	Kotlin	2019-11-06 03:19:12
5	Jahid Hasan Imon	1879	Kotlin	2020-09-11 13:23:11

#	User	Length	Language	Date
1	Caleb Austin	382	Lua	2024-10-25 22:18:43

#	User	Length	Language	Date
1	Susanne Ragnemalm	573	PHP	2018-05-26 21:37:10
2	Renate	576	PHP	2021-07-17 12:54:13
3	Jeff Cashion	706	PHP	2018-04-27 20:51:08

#	User	Length	Language	Date
1	Thomas Feld	184	Python 2	2019-08-23 14:09:35
2	Lars Åström	210	Python 2	2018-11-24 17:03:08
3	Tore Norderud	225	Python 2	2014-12-23 00:50:26
4	Jesper Öqvist	226	Python 2	2018-11-05 00:10:12
5	Paulo Bu	230	Python 2	2015-02-07 19:08:34
6	Andreas Eisele	236	Python 2	2018-10-05 13:21:49
7	Klas Björkqvist	246	Python 2	2014-11-30 11:13:45
8	Johannes Agestam	250	Python 2	2015-08-19 11:03:03
9	Justin Su	256	Python 2	2017-09-19 06:20:38
10	Bernhard Kartefla	256	Python 2	2016-09-26 22:02:28

#	User	Length	Language	Date
1	Michael Goldwasser	108	Python 3	2024-09-13 07:23:55
2	Thomas Draper	113	Python 3	2023-09-23 00:07:33
3	Clement Oh	123	Python 3	2023-07-02 07:57:17
4	Ahmed Chamseddine	141	Python 3	2024-09-13 15:24:30
5	Benjamin Z White	145	Python 3	2023-05-23 02:32:04
6	Christian Blumenthal	149	Python 3	2020-08-14 06:16:02
7	Farzam Abrishami	166	Python 3	2024-01-29 00:11:55
8	James Hamm	169	Python 3	2017-11-09 01:24:45
9	Jiang Yujie	169	Python 3	2022-03-19 04:09:37
10	Bjørn Dons	177	Python 3	2018-10-03 01:47:02

#	User	Length	Language	Date
1	Thomas Feld	68	Ruby	2023-03-29 14:28:52
2	Clement Oh	123	Ruby	2023-12-09 06:07:52
3	Hidden user	187	Ruby	2019-02-16 23:56:08
4	Martin Larsson	215	Ruby	2017-03-03 21:05:56
5	Naoki Mizuno	383	Ruby	2016-04-11 20:30:48
6	Erik Rydbert	410	Ruby	2016-07-26 09:54:00
7	Hidden user	825	Ruby	2017-07-10 23:53:09

#	User	Length	Language	Date
1	Henry Jacobson	560	Rust	2022-10-24 18:39:54
2	Bas Dirks	719	Rust	2022-02-21 18:12:20
3	Fiat Driver	1168	Rust	2023-07-11 11:49:08
4	Sebastián Solari	1581	Rust	2020-07-13 08:50:52
5	Vincent Lagerros	10104	Rust	2024-08-07 18:51:25
6	Egor Kulikov	19670	Rust	2025-01-08 13:56:31

Solution running time distribution