Problem A
A Different Problem — Problem Statistics

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Submissions	8597
Accepted submissions	2967
Submission ratio	34.51%
Authors	2489
Full solves [?]	2308
Full solve Ratio	92.73%

#	User	Runtime	Language	Date
1	Niklas Bäckström	0.01 s	C#	2013-02-09 21:35:28
2	Marek	0.02 s	C#	2013-09-15 13:24:39
3	Bjarki Ágúst Guðmundsson	0.02 s	C#	2014-07-26 00:12:32
4	Dżordż	0.02 s	C#	2015-06-17 18:25:36
5	Jens Berntsen	0.02 s	C#	2017-08-10 13:41:24
6	William Meander	0.02 s	C#	2019-09-25 20:48:41

#	User	Runtime	Language	Date
1	Isak Einberg	0.00 s	COBOL	2022-05-31 16:28:15

#	User	Runtime	Language	Date
1	Theodor Ström	0.01 s	Common Lisp	2022-10-10 21:25:09

#	User	Runtime	Language	Date
1	Marcus Dicander	0.00 s	C++ with GMP	2024-02-21 13:27:55

#	User	Runtime	Language	Date
1	Marcus Dicander	0.01 s	C++ with Memory Check	2024-02-21 13:28:18

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	F#	2020-04-27 15:41:35

#	User	Runtime	Language	Date
1	Bassam Alfarhan	0.08 s	Go	2013-03-28 22:42:02
2	Christopher Lillthors	0.08 s	Go	2013-12-13 18:02:03
3	Robin Chowdhury	0.08 s	Go	2014-05-26 18:42:48
4	Bjarki Ágúst Guðmundsson	0.08 s	Go	2014-07-25 23:11:58
5	Davis Freimanis	0.08 s	Go	2016-03-10 19:07:56
6	Hidden user	0.08 s	Go	2016-09-08 21:16:05

#	User	Runtime	Language	Date
1	David Henningsson	0.05 s	Java	2007-10-01 22:15:03
2	Jonas Aule	0.05 s	Java	2008-02-24 15:34:39
3	Hans Gylling	0.05 s	Java	2009-09-26 23:29:08
4	Linus Tufvesson	0.05 s	Java	2009-10-23 16:34:16
5	Simon Klein	0.05 s	Java	2011-09-18 10:53:30
6	Cyrus Lala	0.05 s	Java	2011-09-22 01:39:28
7	Hidden user	0.05 s	Java	2014-09-12 21:04:45
8	Marcus Dicander	0.05 s	Java	2014-12-05 09:50:20
9	Henrik Sandström	0.05 s	Java	2014-12-14 13:25:31
10	Martin Engelin	0.05 s	Java	2015-05-10 16:20:49

#	User	Runtime	Language	Date
1	Daniel Zheng	0.40 s	JavaScript (Node.js)	2019-11-27 06:42:27

#	User	Runtime	Language	Date
1	Bjarki Ágúst Guðmundsson	0.01 s	JavaScript (SpiderMonkey)	2014-08-01 02:43:44
2	Marcus Dicander	0.01 s	JavaScript (SpiderMonkey)	2014-08-10 12:45:30
3	Robin Svensson	0.01 s	JavaScript (SpiderMonkey)	2017-02-27 07:04:06

#	User	Runtime	Language	Date
1	Jesper Sandström	0.20 s	Kotlin	2017-10-14 15:41:41
2	Mikael Hedin	0.20 s	Kotlin	2017-11-09 13:58:50
3	Oscar Silver	0.22 s	Kotlin	2019-10-26 16:30:02

#	User	Runtime	Language	Date
1	Bjarki Ágúst Guðmundsson	0.01 s	PHP	2014-08-01 02:43:24
2	Anton Lundqvist	0.01 s	PHP	2015-01-15 22:02:38

#	User	Runtime	Language	Date
1	Marcus Larsson	0.01 s	Prolog	2014-12-02 18:41:56
2	Eric Norgren	0.01 s	Prolog	2014-12-08 18:23:38
3	Aleksandar Vorkapic	0.01 s	Prolog	2015-01-30 15:24:50
4	Martin Engelin	0.01 s	Prolog	2015-05-12 17:48:53
5	Hidden user	0.01 s	Prolog	2015-12-21 14:56:44
6	Mikael Blomstrand	0.01 s	Prolog	2016-02-23 15:55:11
7	Hidden user	0.01 s	Prolog	2016-02-26 22:27:38
8	Robert Siwerz	0.01 s	Prolog	2016-04-06 16:14:53
9	Theodor Uhmeier	0.01 s	Prolog	2016-04-27 10:26:46
10	Lea Mets	0.01 s	Prolog	2017-05-12 11:04:30

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 2	2011-09-17 19:25:03
2	Jonas Emilsson	0.02 s	Python 2	2011-09-20 16:17:43
3	Gustav Sennton	0.02 s	Python 2	2011-10-19 16:39:02
4	Hidden user	0.02 s	Python 2	2011-10-22 20:30:33
5	Jesper Sundin	0.02 s	Python 2	2011-10-24 16:11:37
6	Hidden user	0.02 s	Python 2	2011-10-24 19:23:08
7	Simon Johansson	0.02 s	Python 2	2011-10-24 20:31:28
8	Hidden user	0.02 s	Python 2	2011-10-25 08:11:59
9	Hanna Kuutmann	0.02 s	Python 2	2011-10-25 10:22:13
10	Siavash Soleimanifard	0.02 s	Python 2	2011-10-25 13:56:40

#	User	Runtime	Language	Date
1	Dennis Kylén	0.02 s	Python 3	2012-10-07 09:24:28
2	Hidden user	0.02 s	Python 3	2012-10-07 11:29:49
3	Jonatan Cöster	0.02 s	Python 3	2012-10-12 12:48:16
4	Jonatan Erdal	0.02 s	Python 3	2012-10-23 10:36:55
5	Lennart Jönsson	0.02 s	Python 3	2012-10-23 13:25:22
6	Christoffer Carlsson	0.02 s	Python 3	2012-10-23 14:30:27
7	Hidden user	0.02 s	Python 3	2012-10-28 22:13:02
8	Josefin Ahnlund	0.02 s	Python 3	2012-10-29 12:01:26
9	Hidden user	0.02 s	Python 3	2012-10-29 22:54:33
10	Carl Mörner	0.02 s	Python 3	2012-11-05 22:46:18

#	User	Runtime	Language	Date
1	André Danielsson	0.03 s	Ruby	2016-09-15 16:03:45
2	Martin Wass	0.03 s	Ruby	2016-10-13 22:03:46
3	Carl Bergman	0.03 s	Ruby	2017-10-30 00:49:10

#	User	Length	Language	Date
1	Anton Kindestam	108	C	2009-10-28 01:14:02
2	Jonas Höglund	143	C	2014-01-07 02:03:16
3	Fredrik Niemelä	151	C	2011-03-25 04:55:59
4	Niklas Lundborg	152	C	2010-03-31 15:12:00
5	Hidden user	156	C	2014-03-20 12:57:03
6	Anton Lyxell	156	C	2016-02-12 23:29:35
7	Adam Egnell	161	C	2022-11-02 14:13:08
8	Ellinor Appelquist	165	C	2017-07-21 08:48:57
9	Alexander Holmberg	165	C	2021-11-04 14:43:23
10	Fredrik Atmer	167	C	2012-12-08 03:05:53

#	User	Length	Language	Date
1	Bjarki Ágúst Guðmundsson	384	C#	2014-07-26 00:12:32
2	Niklas Bäckström	548	C#	2013-02-09 21:23:53
3	Jens Berntsen	612	C#	2017-08-10 13:41:24
4	Marek	710	C#	2013-09-15 13:24:39
5	William Meander	769	C#	2019-09-25 20:48:41
6	Dżordż	934	C#	2015-06-17 18:25:36

#	User	Length	Language	Date
1	Patrik Ackland	139	C++	2015-08-20 20:09:23
2	Hannes Bredberg	141	C++	2016-08-30 21:36:33
3	Fredrik Niemelä	150	C++	2011-03-25 04:58:25
4	Johan Litsfeldt	151	C++	2012-07-31 23:09:57
5	Hidden user	160	C++	2019-08-05 14:37:11
6	Markus Dregi	169	C++	2007-10-04 18:27:06
7	Gunnar Hermansson	170	C++	2006-09-04 14:22:05
8	Urban Pettersson	170	C++	2012-10-07 20:03:27
9	John Eriksson	170	C++	2013-07-12 02:36:35
10	Erik Thormarker	172	C++	2016-09-29 21:29:35

#	User	Length	Language	Date
1	Isak Einberg	515	COBOL	2022-05-31 16:28:15

#	User	Length	Language	Date
1	Theodor Ström	48	Common Lisp	2022-10-10 21:27:29

#	User	Length	Language	Date
1	Marcus Dicander	307	C++ with GMP	2024-02-21 13:27:55

#	User	Length	Language	Date
1	Marcus Dicander	307	C++ with Memory Check	2024-02-21 13:28:18

#	User	Length	Language	Date
1	Hidden user	406	F#	2020-04-27 15:41:35

#	User	Length	Language	Date
1	Bassam Alfarhan	242	Go	2013-03-28 22:42:02
2	Robin Chowdhury	274	Go	2014-05-26 20:23:30
3	Hidden user	279	Go	2016-09-08 21:16:05
4	Davis Freimanis	287	Go	2016-03-10 19:07:56
5	Bjarki Ágúst Guðmundsson	361	Go	2014-07-25 23:42:41
6	Christopher Lillthors	449	Go	2013-12-13 18:02:03

#	User	Length	Language	Date
1	Theodor Ström	66	Haskell	2022-10-10 19:45:12
2	Mathias Magnusson	67	Haskell	2022-10-10 19:45:47
3	Ludvig Janiuk	146	Haskell	2016-09-08 14:55:54
4	Tobias Mattsson	148	Haskell	2020-07-06 16:47:15
5	Ludvig Kindberg	174	Haskell	2016-12-17 23:53:29
6	Eva Despinoy	174	Haskell	2019-04-25 15:25:26
7	Sebastian Montén	174	Haskell	2023-02-07 15:38:44
8	Joel Olbe	175	Haskell	2020-05-17 17:58:01
9	Arash Valipour	178	Haskell	2019-01-23 18:14:37
10	Daniel Zavala-Svensson	180	Haskell	2016-08-30 18:11:56

#	User	Length	Language	Date
1	Fredrik Hernqvist	238	Java	2016-08-30 21:34:46
2	Ola Natvig	246	Java	2007-09-28 12:05:18
3	Staffan Rydström	246	Java	2011-10-23 17:05:00
4	Sebastian Modin	256	Java	2016-08-31 01:09:08
5	Erik Odenman	263	Java	2010-09-14 22:43:40
6	Chjun-chi Chiu	266	Java	2012-09-12 14:59:10
7	Victor Sellstedt	266	Java	2016-09-08 09:16:45
8	Tobias Nilsson	266	Java	2016-09-12 15:19:34
9	Viktor Mattsson	269	Java	2013-10-17 15:29:18
10	Robin Friberg	270	Java	2005-09-29 22:11:34

#	User	Length	Language	Date
1	Daniel Zheng	410	JavaScript (Node.js)	2019-11-27 06:42:27

#	User	Length	Language	Date
1	Robin Svensson	135	JavaScript (SpiderMonkey)	2017-02-27 07:15:40
2	Marcus Dicander	191	JavaScript (SpiderMonkey)	2014-08-10 12:46:50
3	Bjarki Ágúst Guðmundsson	1876	JavaScript (SpiderMonkey)	2014-08-01 02:43:44

#	User	Length	Language	Date
1	Mikael Hedin	212	Kotlin	2017-11-09 13:58:50
2	Jesper Sandström	257	Kotlin	2017-10-14 15:41:41
3	Oscar Silver	476	Kotlin	2019-10-26 16:30:02

#	User	Length	Language	Date
1	Bjarki Ágúst Guðmundsson	144	PHP	2014-08-01 02:43:24
2	Anton Lundqvist	166	PHP	2015-01-15 22:02:38

#	User	Length	Language	Date
1	Bjarki Ágúst Guðmundsson	599	Prolog	2014-07-26 01:23:59
2	Lea Mets	825	Prolog	2017-05-12 11:04:30
3	Samuel Ljungberg	827	Prolog	2020-06-07 11:22:12
4	Hidden user	850	Prolog	2018-06-13 17:08:26
5	Erik Henriksson	875	Prolog	2020-05-05 16:55:08
6	Adrian Salamon	876	Prolog	2022-01-26 18:14:29
7	Mikael Blomstrand	881	Prolog	2016-02-23 15:55:11
8	Gustav Ekner	886	Prolog	2020-04-26 20:37:26
9	Emil Gunnberg Querat	896	Prolog	2020-03-05 13:54:29
10	Juan García de la cruz	948	Prolog	2019-10-09 19:18:24

#	User	Length	Language	Date
1	Philip Sköld	82	Python 2	2011-11-10 16:58:22
2	Jonas Emilsson	90	Python 2	2011-09-20 16:33:43
3	Hidden user	98	Python 2	2011-09-17 19:25:03
4	Bowen Kuang	99	Python 2	2017-02-19 22:38:47
5	Michael Neuman	101	Python 2	2018-10-30 23:43:57
6	Isac Törnberg	103	Python 2	2016-02-02 12:56:31
7	Hidden user	105	Python 2	2012-10-03 23:58:42
8	Louise Karlsson	106	Python 2	2016-02-26 11:22:16
9	Sofia Öhman	106	Python 2	2016-02-29 11:21:36
10	Jimmy Lilja	106	Python 2	2017-09-04 18:48:19

#	User	Length	Language	Date
1	Ivar Boqvist	70	Python 3	2022-10-18 17:10:52
2	Mathias Magnusson	71	Python 3	2022-10-10 19:31:51
3	William Westerlund	78	Python 3	2017-02-23 12:16:04
4	Rasmus Maråk	85	Python 3	2020-03-18 16:09:07
5	Arvid Fahlström Myrman	86	Python 3	2013-12-22 21:58:59
6	Kajsa Bjelle	88	Python 3	2020-11-29 17:40:05
7	Tatiana Kireeva	89	Python 3	2017-10-30 17:06:38
8	Albin Larsson Forsberg	89	Python 3	2019-02-27 19:48:25
9	Johannes von Rosen	90	Python 3	2016-02-29 10:19:33
10	Amanda Helmfrid	90	Python 3	2017-03-23 16:01:27

#	User	Length	Language	Date
1	André Danielsson	92	Ruby	2016-09-15 16:03:45
2	Carl Bergman	100	Ruby	2017-10-30 00:49:10
3	Martin Wass	158	Ruby	2016-10-13 22:03:46

#	User	Length	Language	Date
1	Ahmed Haj Hassine	223	Rust	2022-10-12 14:18:38
2	Alexander Forslund	225	Rust	2022-10-11 10:39:56
3	Marcus Nilszén	249	Rust	2022-11-10 11:31:42
4	Morris Hansing	280	Rust	2020-09-01 23:11:46
5	Hisham Ahmed	300	Rust	2020-09-02 21:30:18
6	Axel Nilsson	311	Rust	2020-09-02 15:13:27
7	Rickard Mårtensson	320	Rust	2019-09-15 10:47:41
8	Mikael Sahleström	321	Rust	2020-10-01 17:27:36
9	Björn Thorén	325	Rust	2020-09-01 18:10:47
10	Elias Floreteng	325	Rust	2021-09-12 23:01:05

Solution running time distribution