Problem A
Platforme — Problem Statistics

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Submissions	2061
Accepted submissions	912
Submission ratio	44.25%
Authors	855
Full solves [?]	758
Full solve Ratio	88.65%

#	User	Runtime	Language	Date
1	Mikael Fiala-Lundström	0.03 s	C#	2022-01-03 16:31:56
2	Andriy Zyevakov	0.03 s	C#	2022-12-16 09:30:20
3	Martin Ahlström	0.04 s	C#	2021-03-28 12:35:34
4	Robert Warnestam	0.04 s	C#	2021-04-23 10:39:40
5	Pontus Lidholm	0.04 s	C#	2023-08-08 11:51:29

#	User	Runtime	Language	Date
1	Nicholas Lantz	0.03 s	Common Lisp	2019-05-03 20:45:01

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.08 s	F#	2023-02-11 13:12:04

#	User	Runtime	Language	Date
1	Jimmy Nejtron	0.00 s	Go	2025-08-11 21:09:53
2	Jinwoo Lee	0.07 s	Go	2018-12-23 21:29:34
3	Norbert Voelker	0.08 s	Go	2021-08-22 14:51:43
4	Andreas Neudecker	0.09 s	Go	2017-02-01 21:24:04

#	User	Runtime	Language	Date
1	Jonathan L	0.00 s	Haskell	2017-08-04 22:10:24
2	Hidden user	0.00 s	Haskell	2023-01-21 00:00:06
3	Steinar Simonnes	0.00 s	Haskell	2024-06-26 10:52:46
4	Hidden user	0.01 s	Haskell	2019-11-19 13:16:24
5	Hidden user	0.01 s	Haskell	2022-05-05 21:29:04
6	Fabian Mitterwallner	0.01 s	Haskell	2025-10-31 00:37:58

#	User	Runtime	Language	Date
1	Erik Odenman	0.06 s	Java	2011-04-14 19:06:23
2	Isak Jägberg	0.06 s	Java	2016-12-09 13:59:32
3	Nick Wu	0.06 s	Java	2016-12-10 11:40:02
4	Micah Stairs	0.06 s	Java	2016-12-13 01:32:53
5	Phan Ngoc Lan	0.06 s	Java	2016-12-30 10:59:20
6	Erik Baalhuis	0.06 s	Java	2017-10-02 01:09:26
7	John Ladera	0.06 s	Java	2018-03-11 15:51:53
8	Ashu Yadav	0.06 s	Java	2018-07-04 16:26:28
9	Brent Yorgey	0.06 s	Java	2018-10-14 22:34:47
10	Sven Rönnbäck	0.06 s	Java	2022-12-18 19:02:24

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-12-12 19:41:39
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-12-18 15:45:36
3	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-05-23 09:00:46
4	Jimmy Gustafsson	0.03 s	JavaScript (SpiderMonkey)	2022-08-10 23:43:31

#	User	Runtime	Language	Date
1	Timothy Gaede	0.78 s	Julia	2024-06-09 07:14:27

#	User	Runtime	Language	Date
1	Benjamin Sølvberg Buan	0.14 s	Kotlin	2020-10-06 20:32:54
2	Nicholas Johnson	0.14 s	Kotlin	2021-05-07 21:36:48
3	Jacob Huebner	0.15 s	Kotlin	2021-05-07 23:21:51
4	Adam Rankin	0.21 s	Kotlin	2023-09-12 05:43:49

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-10-09 20:27:08

#	User	Runtime	Language	Date
1	Raphael Lima	0.01 s	PHP	2024-07-03 11:03:10

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.03 s	Python 2	2016-12-09 18:49:45
2	Haggai Liu	0.03 s	Python 2	2017-04-15 00:32:50
3	Justin Su	0.03 s	Python 2	2017-09-29 02:08:29
4	Jesper Öqvist	0.03 s	Python 2	2018-10-31 17:12:24
5	Thomas Feld	0.03 s	Python 2	2019-11-11 11:03:18
6	Johan Lyts	0.03 s	Python 2	2020-06-21 21:30:06
7	Yanmarshus Bachtiar	0.03 s	Python 2	2020-08-25 07:46:41
8	Abdul Zakkar	0.04 s	Python 2	2017-08-16 17:24:13
9	Andreas Björklund	0.04 s	Python 2	2022-03-13 10:05:21
10	Lars Åström	0.05 s	Python 2	2019-11-08 15:42:21

#	User	Runtime	Language	Date
1	Christian Lindeström	0.02 s	Python 3	2016-12-10 08:03:00
2	Henrik Adolfsson	0.02 s	Python 3	2017-05-14 09:44:29
3	Ciara Godwin	0.02 s	Python 3	2017-06-28 17:36:16
4	Patrik Lilja	0.02 s	Python 3	2017-07-10 20:02:33
5	Donald Dong	0.02 s	Python 3	2018-02-22 01:07:19
6	Eimhin McDonald	0.02 s	Python 3	2018-07-20 22:04:40
7	Sindri Magnusson	0.02 s	Python 3	2019-03-05 17:32:02
8	Fred Bloggs	0.02 s	Python 3	2019-03-11 13:46:12
9	Markus	0.02 s	Python 3	2019-04-18 22:51:51
10	Денис Соболев	0.02 s	Python 3	2019-04-24 15:16:12

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-10-09 10:45:58
2	Matzuka	0.06 s	Ruby	2025-11-26 10:33:55
3	Yusuke Ichiki	0.09 s	Ruby	2022-06-28 09:40:47
4	Andreas Severin Hauch Trøstrup	0.10 s	Ruby	2023-10-05 15:02:31

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-02-21 08:31:41
2	Ryosuke Takahashi	0.00 s	Rust	2023-06-25 15:10:08
3	藤原潮人	0.00 s	Rust	2023-06-27 03:22:11
4	Erik Magnusson	0.00 s	Rust	2024-05-14 18:29:49
5	gard heine kalland	0.00 s	Rust	2024-06-17 11:50:03
6	Vincent Lagerros	0.00 s	Rust	2024-09-25 19:23:30
7	Iwancof	0.02 s	Rust	2023-06-20 06:49:57

#	User	Length	Language	Date
1	Josenildo Silva	630	C	2021-06-12 21:00:53
2	Ivan Petrov	764	C	2019-05-30 10:01:42
3	Komatsuna	950	C	2022-06-23 02:14:35
4	พลพล พัวกาหลง	997	C	2023-07-27 08:07:14
5	Kato So	1247	C	2023-07-12 19:08:35
6	Sambit Palit	1323	C	2020-10-28 01:26:26
7	Fredrik Karlberg	1440	C	2023-08-20 12:52:51
8	Kasper Malmborg Rønne	1749	C	2024-06-02 21:38:09
9	Mirel Cosulschi	2123	C	2025-01-18 17:05:22
10	Brenda Guzman	2502	C	2021-09-25 19:03:40

#	User	Length	Language	Date
1	Martin Ahlström	2061	C#	2021-03-28 12:35:34
2	Pontus Lidholm	2847	C#	2023-08-08 11:51:29
3	Robert Warnestam	5692	C#	2021-04-23 10:39:40
4	Andriy Zyevakov	8488	C#	2022-12-16 09:30:20
5	Mikael Fiala-Lundström	9821	C#	2022-01-03 16:31:56

#	User	Length	Language	Date
1	Kevin X Huai	425	C++	2024-07-16 02:27:52
2	Elias Lolck	450	C++	2021-03-04 12:40:51
3	William Gan	456	C++	2018-12-06 15:48:42
4	Johan Wind	480	C++	2018-05-13 18:15:13
5	Eduardo González	517	C++	2019-03-05 05:19:01
6	shibh308	534	C++	2022-06-27 18:54:01
7	Andres Leonel Juarez Careaga	540	C++	2022-05-04 16:44:31
8	陳秉宏	543	C++	2023-12-13 07:59:23
9	Naufal Aziz	546	C++	2017-01-27 04:42:00
10	Matthew Joseph Schallenkamp	549	C++	2019-02-02 17:57:20

#	User	Length	Language	Date
1	Nicholas Lantz	634	Common Lisp	2019-05-03 20:45:01

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1271	F#	2023-02-11 13:12:04

#	User	Length	Language	Date
1	Andreas Neudecker	958	Go	2017-02-01 21:24:04
2	Jimmy Nejtron	1170	Go	2025-08-11 21:09:53
3	Norbert Voelker	1324	Go	2021-08-22 14:51:43
4	Jinwoo Lee	1794	Go	2018-12-23 21:29:34

#	User	Length	Language	Date
1	Fabian Mitterwallner	609	Haskell	2025-10-31 00:37:58
2	Hidden user	680	Haskell	2023-01-21 00:00:06
3	Steinar Simonnes	982	Haskell	2024-06-26 10:52:46
4	Hidden user	1776	Haskell	2022-05-05 21:29:04
5	Jonathan L	2427	Haskell	2017-08-04 22:10:24
6	Hidden user	10612	Haskell	2019-11-19 13:16:24

#	User	Length	Language	Date
1	Doug Goodman	797	Java	2017-06-06 22:27:43
2	daffa fathani adila	946	Java	2021-01-18 19:04:39
3	Dominic Reed	995	Java	2021-10-10 00:48:53
4	Carson Barnett	1016	Java	2019-11-04 04:21:01
5	sober_junkie	1034	Java	2024-07-18 03:24:58
6	Suhas T. Nagar	1083	Java	2022-05-06 19:30:28
7	Pedro Contipelli	1092	Java	2017-10-04 22:20:05
8	Huang Weijie	1121	Java	2019-04-18 09:05:31
9	Gabriel Gonzalez	1172	Java	2017-06-27 05:21:08
10	Micah Stairs	1205	Java	2016-12-13 01:32:53

#	User	Length	Language	Date
1	Jimmy Gustafsson	445	JavaScript (SpiderMonkey)	2022-08-10 23:43:31
2	Peter Kedemo	703	JavaScript (SpiderMonkey)	2016-12-12 19:41:39
3	Christian Pilegaard Cederquist	710	JavaScript (SpiderMonkey)	2023-05-23 09:00:46
4	Bjørn Chr. Soltvedt	733	JavaScript (SpiderMonkey)	2016-12-18 15:45:36

#	User	Length	Language	Date
1	Timothy Gaede	1240	Julia	2024-06-09 07:14:27

#	User	Length	Language	Date
1	Jacob Huebner	1019	Kotlin	2021-05-07 23:21:51
2	Adam Rankin	1110	Kotlin	2023-09-12 05:43:49
3	Nicholas Johnson	2425	Kotlin	2021-05-07 21:36:48
4	Benjamin Sølvberg Buan	2574	Kotlin	2020-10-06 20:32:54

#	User	Length	Language	Date
1	Ingemar Ragnemalm	2181	Pascal	2018-10-09 20:27:08

#	User	Length	Language	Date
1	Raphael Lima	1699	PHP	2024-07-03 11:03:10

#	User	Length	Language	Date
1	Andreas Björklund	257	Python 2	2022-03-13 10:05:21
2	Johan Lyts	334	Python 2	2020-06-21 21:30:06
3	Haggai Liu	345	Python 2	2017-04-15 00:32:50
4	Thomas Feld	374	Python 2	2019-11-11 11:03:18
5	Lars Åström	388	Python 2	2019-11-08 15:42:21
6	Justin Su	481	Python 2	2017-09-29 02:08:29
7	Christofer Ohlsson	573	Python 2	2016-12-09 18:49:45
8	Jesper Öqvist	664	Python 2	2018-10-31 17:12:24
9	Yanmarshus Bachtiar	964	Python 2	2020-08-25 07:46:41
10	Abdul Zakkar	1086	Python 2	2017-08-16 17:24:13

#	User	Length	Language	Date
1	Daniel Bogorad	213	Python 3	2025-09-25 05:43:45
2	Frederik Petersen	220	Python 3	2023-10-05 14:13:43
3	Bjørn Dons	240	Python 3	2020-04-28 12:16:47
4	Ahmed Chamseddine	240	Python 3	2025-06-23 09:48:22
5	Hrant Hovhannisyan	259	Python 3	2025-04-23 09:10:27
6	poppyer	263	Python 3	2021-10-10 01:26:54
7	Yong Mao	270	Python 3	2023-10-07 04:07:34
8	Nicholas Bachmann Tjørnelund	273	Python 3	2020-02-01 15:28:50
9	frodo821	285	Python 3	2022-07-02 03:40:07
10	Ryoki Kunii	294	Python 3	2021-10-10 00:50:53

#	User	Length	Language	Date
1	Thomas Feld	125	Ruby	2023-10-09 11:44:51
2	Andreas Severin Hauch Trøstrup	159	Ruby	2023-10-05 15:05:39
3	Matzuka	360	Ruby	2025-11-26 10:36:54
4	Yusuke Ichiki	446	Ruby	2022-06-28 09:40:47

#	User	Length	Language	Date
1	Bas Dirks	859	Rust	2022-02-21 08:31:41
2	藤原潮人	1432	Rust	2023-06-27 03:22:11
3	gard heine kalland	3226	Rust	2024-06-17 11:50:03
4	Ryosuke Takahashi	3552	Rust	2023-06-25 15:10:08
5	Erik Magnusson	4681	Rust	2024-05-14 18:29:49
6	Vincent Lagerros	16736	Rust	2024-09-25 19:23:30
7	Iwancof	21796	Rust	2023-06-20 06:49:57

Solution running time distribution