Problem I
Formelkoll — Problem Statistics

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Submissions	47144
Accepted submissions	7338
Submission ratio	15.57%
Authors	4245
Full solves [?]	3939
Full solve Ratio	92.79%

#	User	Runtime	Language	Date
1	Emil Lenngren	0.00 s	C	2013-11-09 01:19:46
2	Richard Nysäter	0.00 s	C	2013-11-10 04:19:56
3	Johan Björklund	0.00 s	C	2015-11-01 16:31:06

#	User	Runtime	Language	Date
1	Marcus Dicander	0.00 s	C++	2013-06-17 23:43:20
2	Richard Nysäter	0.00 s	C++	2013-11-08 04:59:39
3	Emil Lenngren	0.00 s	C++	2013-11-09 01:15:24
4	Martin Neihoff	0.00 s	C++	2019-03-22 12:54:38
5	Hidden user	0.00 s	C++	2020-10-02 17:40:33

#	User	Runtime	Language	Date
1	Linus Eklund	0.00 s	Haskell	2018-04-01 11:41:26

#	User	Runtime	Language	Date
1	Lukas Ekström	0.14 s	Java	2015-11-04 00:47:22
2	Eric Törnqvist	0.19 s	Java	2016-04-04 12:56:51

#	User	Runtime	Language	Date
1	Erik Larsson	0.01 s	JavaScript (SpiderMonkey)	2016-07-08 02:01:51

#	User	Runtime	Language	Date
1	Simon Edström	0.03 s	Python 2	2018-03-22 23:13:19
2	Tobias Edwards	0.03 s	Python 2	2018-03-23 13:03:03
3	Jens Fagerberg	0.03 s	Python 2	2018-03-27 21:16:55
4	Ted Steinkeller	0.04 s	Python 2	2012-10-11 08:50:03
5	Gunnar Fröberg	0.04 s	Python 2	2012-11-06 10:36:05
6	Henrik Frid	0.04 s	Python 2	2012-11-07 14:33:13
7	Hidden user	0.04 s	Python 2	2012-11-26 17:31:59
8	Annelie Hulkko	0.04 s	Python 2	2012-12-16 14:30:06
9	Lina Flitig	0.04 s	Python 2	2012-12-18 13:46:04
10	Kelly Karipidou	0.04 s	Python 2	2013-01-11 10:53:05

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 3	2014-11-09 20:57:58
2	Hidden user	0.02 s	Python 3	2014-11-10 10:24:50
3	Emil Romare	0.02 s	Python 3	2014-11-10 11:45:25
4	Anton Notstam	0.02 s	Python 3	2014-11-10 11:48:42
5	Oliver Back	0.02 s	Python 3	2014-11-10 16:25:49
6	Natalie Ekroth	0.02 s	Python 3	2014-11-11 14:09:59
7	Jonas Bengtsson	0.02 s	Python 3	2014-11-18 11:05:54
8	Rebecka Rönnbäck	0.02 s	Python 3	2014-12-08 16:36:48
9	Hidden user	0.02 s	Python 3	2014-12-09 22:21:30
10	Karolina Seigel	0.02 s	Python 3	2015-01-28 16:22:11

#	User	Runtime	Language	Date
1	Hind Belhouari	0.04 s	Python 3 with NumPy	2024-11-06 20:00:18
2	Mathea Belsa Krohné	0.04 s	Python 3 with NumPy	2025-04-01 12:42:34
3	Max Lundin	0.04 s	Python 3 with NumPy	2025-10-31 10:36:56
4	Lucas Hydén	0.04 s	Python 3 with NumPy	2025-11-05 14:47:46
5	Linn Hovdal	0.04 s	Python 3 with NumPy	2025-11-05 15:00:03
6	Aleyna Atasoy	0.04 s	Python 3 with NumPy	2025-11-06 12:17:06
7	Sandra Sandhagen	0.04 s	Python 3 with NumPy	2025-11-06 12:17:53
8	Theodor Fahami	0.04 s	Python 3 with NumPy	2025-11-07 05:30:08
9	Patrik Boström	0.04 s	Python 3 with NumPy	2025-11-07 13:30:45
10	David Nissolle	0.05 s	Python 3 with NumPy	2023-11-07 11:00:15

#	User	Length	Language	Date
1	Richard Nysäter	2901	C	2013-11-10 05:16:44
2	Emil Lenngren	2936	C	2013-11-09 01:19:46
3	Johan Björklund	3056	C	2015-11-01 16:31:06

#	User	Length	Language	Date
1	Emil Lenngren	2401	C++	2013-11-09 01:15:24
2	Richard Nysäter	2905	C++	2013-11-10 05:16:07
3	Martin Neihoff	3648	C++	2019-03-22 13:25:50
4	Hidden user	3914	C++	2020-10-02 17:40:33
5	Marcus Dicander	4015	C++	2013-06-17 23:43:20

#	User	Length	Language	Date
1	Linus Eklund	2756	Haskell	2018-04-01 11:41:26

#	User	Length	Language	Date
1	Lukas Ekström	7398	Java	2015-11-03 16:39:27
2	Eric Törnqvist	9223	Java	2016-03-30 13:33:59

#	User	Length	Language	Date
1	Erik Larsson	2888	JavaScript (SpiderMonkey)	2016-07-08 02:01:51

#	User	Length	Language	Date
1	Erik Bäck	2711	Python 2	2014-06-10 11:03:59
2	Erik Markström	3043	Python 2	2013-01-28 15:08:49
3	Andreas Broström	3293	Python 2	2013-11-28 12:45:03
4	Linus Skjutar Apell	3396	Python 2	2015-09-09 12:03:16
5	Markus Målsäter	3432	Python 2	2013-11-28 12:21:19
6	Tobias Edwards	3460	Python 2	2018-03-23 13:03:03
7	Henrik Hamber	3551	Python 2	2015-09-09 11:15:18
8	Christian Konstenius	3602	Python 2	2013-03-26 15:37:35
9	Hidden user	3674	Python 2	2013-11-10 22:11:06
10	Sofie Nilsson	3888	Python 2	2014-06-11 12:12:01

#	User	Length	Language	Date
1	Victor Hernadi	1851	Python 3	2023-08-28 12:46:22
2	Tobias Gustafsson	2225	Python 3	2014-03-31 19:34:37
3	Patrik Rehnsfeldt	2385	Python 3	2014-04-07 13:38:29
4	Hidden user	2490	Python 3	2015-05-07 10:12:05
5	Magnus Wiberg	2494	Python 3	2015-06-04 18:09:38
6	Fredrik Smed	2552	Python 3	2013-11-04 10:35:23
7	Hidden user	2586	Python 3	2015-11-16 13:55:14
8	Hidden user	2610	Python 3	2014-04-08 16:24:51
9	Christoffer Sandberg	2610	Python 3	2015-04-08 13:32:46
10	Johan Lindblad	2645	Python 3	2014-03-27 13:04:39

#	User	Length	Language	Date
1	Patrik Boström	3343	Python 3 with NumPy	2025-11-07 13:30:45
2	Hind Belhouari	4082	Python 3 with NumPy	2024-11-06 20:00:18
3	Max Lundin	4600	Python 3 with NumPy	2025-10-31 10:36:56
4	David Nissolle	4758	Python 3 with NumPy	2023-11-07 11:24:20
5	Linn Hovdal	4848	Python 3 with NumPy	2025-11-05 15:06:27
6	Johan Rydh	5288	Python 3 with NumPy	2024-04-08 10:15:59
7	Mathea Belsa Krohné	5361	Python 3 with NumPy	2025-04-01 12:42:34
8	Mehmet Kücükler	5956	Python 3 with NumPy	2023-11-08 09:19:20
9	Theodor Fahami	5989	Python 3 with NumPy	2025-11-07 05:30:08
10	Lucas Hydén	6170	Python 3 with NumPy	2025-11-05 14:47:46

Solution running time distribution