Problem A
Nikola — Problem Statistics

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Submissions	6255
Accepted submissions	1995
Submission ratio	31.89%
Authors	1667
Accepted authors	1448
Author ratio	86.86%

#	User	Runtime	Language	Date
1	Ryan O'Hara	0.01 s	C	2017-10-20 04:52:45
2	Ivan Petrov	0.01 s	C	2019-05-30 10:00:37
3	Taha Kherraf	0.01 s	C	2019-08-13 16:34:34
4	Eyleifur Bjarkason	0.01 s	C	2020-11-18 00:59:49
5	Bergur Snorrason	0.01 s	C	2021-10-30 16:17:19
6	Kai Luedemann	0.01 s	C	2022-01-19 23:20:51
7	Komatsuna	0.01 s	C	2022-05-17 07:06:29
8	Alexander Bilde Pedersen	0.01 s	C	2023-10-02 12:44:58
9	Hidden user	0.01 s	C	2024-07-25 14:18:11
10	Tom	0.01 s	C	2024-11-24 16:59:26

#	User	Runtime	Language	Date
1	Simon Ståhlberg	0.03 s	C#	2014-03-03 14:52:17
2	Nathan Andrews	0.32 s	C#	2024-10-18 23:52:58
3	Andriy Zyevakov	0.43 s	C#	2024-02-14 09:36:21
4	Artemy Gavrilov	0.44 s	C#	2024-02-25 20:17:30

#	User	Runtime	Language	Date
1	Felicia Chen-She	0.03 s	Go	2022-10-21 16:38:49
2	Norbert Voelker	0.05 s	Go	2023-05-27 15:01:23
3	Petter Friberg	0.25 s	Go	2017-05-25 11:54:50

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.34 s	Haskell	2025-07-02 15:17:24
2	Matthew Craven	0.37 s	Haskell	2020-06-04 05:45:44

#	User	Runtime	Language	Date
1	Alvin Lee	0.07 s	Java	2024-09-27 04:03:37
2	Leon Wang	0.07 s	Java	2024-09-27 19:02:26
3	Pedro Sugiyama	0.08 s	Java	2025-03-14 03:14:23
4	Hidden user	0.09 s	Java	2014-03-25 01:45:56
5	Jakub Jagiello	0.09 s	Java	2017-04-29 23:42:19
6	Bryan Jin	0.09 s	Java	2018-08-16 20:59:28
7	Paolo Pellizzoni	0.09 s	Java	2018-12-19 15:59:09
8	Taras Romanyuk	0.09 s	Java	2024-05-27 18:59:22
9	Jack Fang	0.09 s	Java	2024-09-30 03:09:44
10	Tuomas Maanonen	0.09 s	Java	2024-10-16 10:25:55

#	User	Runtime	Language	Date
1	Stephanie Keck	0.49 s	JavaScript (Node.js)	2020-02-29 06:15:42

#	User	Runtime	Language	Date
1	Christian Cederquist	0.05 s	JavaScript (SpiderMonkey)	2023-06-30 17:30:59
2	Christopher Walther	0.06 s	JavaScript (SpiderMonkey)	2021-05-14 18:45:31

#	User	Runtime	Language	Date
1	Jacob Huebner	0.15 s	Kotlin	2022-03-11 22:38:49
2	Thomas Alme Matre	0.70 s	Kotlin	2025-02-05 02:34:05

#	User	Runtime	Language	Date
1	Artemis Ngoh	0.24 s	OCaml	2024-04-27 21:05:22

#	User	Runtime	Language	Date
1	Minh Phan Duc Nhat	0.05 s	Python 2	2018-02-12 03:46:09
2	Hermon Mulat	0.06 s	Python 2	2019-01-13 08:25:58
3	Helennn	0.06 s	Python 2	2023-03-19 03:05:42
4	Mario Luigi	0.07 s	Python 2	2024-03-30 20:11:40
5	Andreas Björklund	0.09 s	Python 2	2021-04-12 18:05:46
6	John Barczynski	0.13 s	Python 2	2018-04-04 01:44:36
7	Petter Friberg	0.26 s	Python 2	2017-05-14 10:24:27
8	Lars Åström	0.27 s	Python 2	2019-06-03 19:24:25
9	Krzysztof Jagiełło	0.31 s	Python 2	2017-05-13 20:26:29
10	Oskar Haarklou Veileborg	0.33 s	Python 2	2019-06-13 20:24:26

#	User	Runtime	Language	Date
1	Maj Stenmark	0.08 s	Python 3	2022-09-15 18:06:03
2	Zi Chen Hu	0.08 s	Python 3	2022-10-15 15:30:13
3	Helennn	0.08 s	Python 3	2023-03-19 03:06:58
4	Benjamin Z White	0.08 s	Python 3	2023-04-18 10:48:11
5	Matthew Mar	0.08 s	Python 3	2024-10-18 22:39:57
6	Jacob Hall	0.09 s	Python 3	2023-04-13 06:41:14
7	ak	0.09 s	Python 3	2023-05-13 10:07:39
8	Alan Zhou	0.09 s	Python 3	2025-03-01 09:30:35
9	Xiangqi Jiang	0.10 s	Python 3	2021-03-14 00:08:34
10	Toshihiro Ito	0.10 s	Python 3	2022-05-12 13:34:47

#	User	Runtime	Language	Date
1	Yusuke Ichiki	0.56 s	Ruby	2022-05-13 05:34:46

#	User	Runtime	Language	Date
1	Schnee	0.01 s	Rust	2023-05-16 11:08:43
2	Anthony Helsel	0.01 s	Rust	2023-07-28 19:15:46
3	Hidden user	0.01 s	Rust	2025-02-12 18:33:03
4	Niklas Sandén	0.02 s	Rust	2022-09-15 19:58:02
5	Iwancof	0.02 s	Rust	2023-05-14 17:32:07
6	Jonathan Choi	0.02 s	Rust	2024-02-24 05:20:53
7	Kristian Elde Johansen	0.02 s	Rust	2025-02-04 10:53:49
8	藤原潮人	0.03 s	Rust	2023-05-16 11:21:29
9	Lars Tveito	0.05 s	Rust	2020-07-05 16:28:11
10	Mckinley Xie	0.06 s	Rust	2025-03-02 03:25:24

#	User	Length	Language	Date
1	Ivan Petrov	677	C	2019-05-30 10:00:37
2	Taha Kherraf	769	C	2019-08-13 16:34:34
3	Komatsuna	914	C	2022-05-17 07:06:29
4	Ryan O'Hara	1041	C	2017-10-20 04:52:45
5	Florian ten Napel	1060	C	2025-03-21 13:27:59
6	Alexander Bilde Pedersen	1112	C	2023-10-02 12:50:52
7	Kai Luedemann	1238	C	2022-01-19 23:20:51
8	Tom	1557	C	2024-11-24 16:59:26
9	Hidden user	1902	C	2024-07-25 14:18:11
10	Bergur Snorrason	2015	C	2021-10-30 16:17:19

#	User	Length	Language	Date
1	Nathan Andrews	989	C#	2024-10-18 23:52:58
2	Artemy Gavrilov	3065	C#	2024-02-25 20:17:30
3	Simon Ståhlberg	4109	C#	2014-03-03 14:52:17
4	Andriy Zyevakov	10838	C#	2024-02-14 09:36:21

#	User	Length	Language	Date
1	Grae Yeandle	405	C++	2021-03-31 12:47:01
2	Jalvin Chan Jia Xiang	437	C++	2020-04-13 18:49:12
3	Huy Phạm	437	C++	2022-05-26 12:08:47
4	Karol Farbiś	439	C++	2015-12-26 02:10:36
5	Elias Lolck	452	C++	2023-05-18 13:32:40
6	Donghyun Kim	453	C++	2019-01-14 19:37:21
7	William Gan	472	C++	2017-12-19 10:20:34
8	Herman Karlsson	483	C++	2015-09-27 23:22:17
9	David Chik	488	C++	2020-12-22 08:21:04
10	Marcus Xu	503	C++	2023-02-04 19:03:29

#	User	Length	Language	Date
1	Felicia Chen-She	618	Go	2022-10-21 16:38:49
2	Norbert Voelker	2124	Go	2021-12-05 22:44:42
3	Petter Friberg	2454	Go	2017-05-25 11:54:50

#	User	Length	Language	Date
1	Steinar Simonnes	953	Haskell	2025-07-02 15:17:49
2	Matthew Craven	995	Haskell	2020-06-04 05:45:44

#	User	Length	Language	Date
1	Minjae Kim	773	Java	2024-09-30 07:06:45
2	Brendan King	799	Java	2020-08-06 03:33:06
3	Lam Nguyen	970	Java	2023-09-07 07:17:37
4	Shahzain Ali Khan	971	Java	2025-04-27 19:06:20
5	Fatima Mahmood	972	Java	2025-04-27 18:28:08
6	Josh Henderson	994	Java	2021-12-02 16:56:12
7	Frank Ruskey	1013	Java	2017-10-15 07:58:33
8	Vebjørn Søreide Øiestad	1017	Java	2025-02-03 17:52:39
9	Frederick Pek	1048	Java	2021-03-06 18:37:32
10	Arup Ratan Guha	1069	Java	2024-03-12 16:15:12

#	User	Length	Language	Date
1	Stephanie Keck	6332	JavaScript (Node.js)	2020-02-29 06:15:42

#	User	Length	Language	Date
1	Christian Cederquist	635	JavaScript (SpiderMonkey)	2023-06-30 17:30:59
2	Christopher Walther	841	JavaScript (SpiderMonkey)	2021-05-14 18:45:31

#	User	Length	Language	Date
1	Thomas Alme Matre	1191	Kotlin	2025-02-05 02:31:02
2	Jacob Huebner	1502	Kotlin	2022-03-11 22:38:49

#	User	Length	Language	Date
1	Artemis Ngoh	1350	OCaml	2024-04-27 21:05:22

#	User	Length	Language	Date
1	Martin Wan	373	Python 2	2017-10-21 07:58:31
2	Olav Røthe Bakken	449	Python 2	2020-03-03 11:46:14
3	Minh Phan Duc Nhat	511	Python 2	2018-02-12 03:46:09
4	Oskar Haarklou Veileborg	513	Python 2	2019-06-13 20:24:26
5	Lars Åström	586	Python 2	2019-06-03 19:24:25
6	Andreas Björklund	646	Python 2	2021-04-12 18:05:46
7	John Barczynski	646	Python 2	2018-04-04 01:44:36
8	Mario Luigi	867	Python 2	2024-03-30 20:11:40
9	Hermon Mulat	868	Python 2	2019-01-13 08:25:58
10	Hidden user	893	Python 2	2018-12-08 13:17:04

#	User	Length	Language	Date
1	Michael Goldwasser	216	Python 3	2024-09-22 09:06:28
2	Benjamin Z White	239	Python 3	2023-04-18 10:54:07
3	Alan Zhou	265	Python 3	2025-03-01 09:47:15
4	Ahmed Chamseddine	267	Python 3	2025-06-24 14:52:34
5	Kelly Dance	307	Python 3	2022-08-19 05:23:13
6	jt	376	Python 3	2025-03-05 10:35:51
7	Tai Tze Kin	376	Python 3	2024-02-05 17:02:41
8	Eirik Pedersen	377	Python 3	2025-02-05 09:31:30
9	Shakeel Samsudeen	377	Python 3	2022-02-23 01:35:37
10	Nicholas Russell Saerang	381	Python 3	2023-09-13 09:34:01

#	User	Length	Language	Date
1	Yusuke Ichiki	803	Ruby	2022-05-13 05:34:46

#	User	Length	Language	Date
1	Mårten Åsberg	1082	Rust	2022-04-01 19:45:09
2	Lars Tveito	1131	Rust	2020-07-05 16:28:11
3	Schnee	1194	Rust	2023-05-16 11:08:43
4	Anthony Helsel	1279	Rust	2023-07-28 19:15:46
5	Saad Zellag	1298	Rust	2024-09-30 00:12:40
6	Tarjei Landøy	1327	Rust	2025-02-06 18:43:42
7	Kristian Elde Johansen	1462	Rust	2025-02-04 10:53:49
8	Ole Magnus	1463	Rust	2025-02-19 18:07:01
9	Hidden user	1466	Rust	2025-02-12 18:33:03
10	Mckinley Xie	1855	Rust	2025-03-02 03:25:24

Solution running time distribution