Problem D
Modular Arithmetic — Problem Statistics

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Submissions	3942
Accepted submissions	1883
Submission ratio	47.77%
Authors	1225
Full solves [?]	1060
Full solve Ratio	86.53%

#	User	Runtime	Language	Date
1	Simon Ståhlberg	0.03 s	C#	2014-03-20 15:40:36
2	Logan Christopher	0.05 s	C#	2022-08-16 20:38:39
3	PumpedByFranck Tm	0.06 s	C#	2025-06-20 19:47:03
4	Joshua	0.06 s	C#	2025-06-21 00:01:53
5	Joel Marcos Villarroel Molina	0.06 s	C#	2025-06-26 15:41:38
6	Roger Ruiz	0.06 s	C#	2025-07-07 17:51:56
7	Matias Suarez	0.07 s	C#	2025-06-20 22:33:49
8	Brandon	0.07 s	C#	2025-06-21 00:29:39

#	User	Runtime	Language	Date
1	Jinwoo Lee	0.04 s	Common Lisp	2020-10-10 06:38:41

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Go	2019-03-15 13:40:35
2	Aleksander Jan Mistewicz	0.04 s	Go	2019-04-11 16:42:10
3	Norbert Voelker	0.04 s	Go	2021-03-31 22:40:02
4	Vilhelm Melkstam	0.08 s	Go	2022-05-04 12:09:23

#	User	Runtime	Language	Date
1	Morten Lohne	0.01 s	Haskell	2017-11-05 00:19:13
2	Juan Miguel Vilar	0.01 s	Haskell	2021-10-04 16:29:05
3	Hidden user	0.01 s	Haskell	2022-05-18 12:10:42
4	Steinar Simonnes	0.01 s	Haskell	2024-07-16 16:59:24
5	Oskar Segersvärd	0.03 s	Haskell	2014-10-22 13:21:43
6	Simon Olander Sahlén	0.03 s	Haskell	2014-11-20 14:37:41
7	Rex Wagenius	0.03 s	Haskell	2014-11-23 22:26:13
8	David Wärn	0.03 s	Haskell	2015-05-27 12:56:23
9	Jesper Sandström	0.03 s	Haskell	2017-11-11 13:07:31
10	Olle Eriksson	0.03 s	Haskell	2017-12-02 02:29:24

#	User	Runtime	Language	Date
1	Simon Klein	0.07 s	Java	2012-01-07 11:43:21
2	Issa Issack	0.09 s	Java	2024-08-24 13:42:43
3	Ashu Yadav	0.10 s	Java	2018-07-02 20:43:58
4	Dennis Ekblom	0.11 s	Java	2009-11-03 15:53:06
5	Hanif Farahmand Mokarremi	0.11 s	Java	2011-11-13 21:15:45
6	Ashkan Jahanbakhsh	0.11 s	Java	2011-11-14 20:43:24
7	Staffan Rydström	0.11 s	Java	2011-11-15 01:18:09
8	Håkan Warnquist	0.11 s	Java	2013-04-18 10:38:41
9	Richard Nysäter	0.11 s	Java	2014-04-12 12:48:18
10	Dexter Gramfors	0.11 s	Java	2015-11-12 14:24:50

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.20 s	JavaScript (Node.js)	2023-08-23 09:40:17

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.35 s	JavaScript (SpiderMonkey)	2020-08-26 22:36:50

#	User	Runtime	Language	Date
1	Noszály Csaba	0.57 s	Julia	2025-09-01 18:17:13
2	Timothy Gaede	0.75 s	Julia	2024-05-08 17:58:30

#	User	Runtime	Language	Date
1	Jonathan Soo	0.25 s	Kotlin	2019-09-18 08:35:26
2	Adam Koprowski	0.39 s	Kotlin	2021-06-25 23:09:45
3	Hidden user	0.43 s	Kotlin	2017-11-26 05:56:19

#	User	Runtime	Language	Date
1	Gavin Gray	0.01 s	OCaml	2021-08-05 05:49:34

#	User	Runtime	Language	Date
1	Andreas Serra	0.05 s	Python 2	2014-03-24 09:54:20
2	Måns Magnusson	0.06 s	Python 2	2018-07-18 01:31:27
3	Kai Widell Niigata	0.07 s	Python 2	2014-04-13 17:54:15
4	Hermon Mulat	0.07 s	Python 2	2018-11-30 15:11:58
5	Tore Norderud	0.08 s	Python 2	2015-04-30 21:26:44
6	Kristian Gregorius Hustad	0.08 s	Python 2	2016-07-16 19:54:06
7	Rhys Balevicius	0.08 s	Python 2	2017-10-31 21:08:17
8	Christofer Ohlsson	0.09 s	Python 2	2015-08-09 20:39:31
9	Tomas Alvarez	0.09 s	Python 2	2017-08-05 03:07:31
10	Johan Wind	0.09 s	Python 2	2018-03-26 21:24:46

#	User	Runtime	Language	Date
1	Ram Basnet	0.03 s	Python 3	2017-12-05 08:24:02
2	Liu Husong	0.03 s	Python 3	2019-03-24 17:10:40
3	Brian Yu	0.03 s	Python 3	2019-10-05 03:15:55
4	Henrik Adolfsson	0.04 s	Python 3	2014-03-26 20:38:32
5	Tan Chee Heng	0.04 s	Python 3	2017-11-19 08:54:17
6	Andrew Baas	0.04 s	Python 3	2019-02-22 00:20:36
7	Dylan Mäenpää	0.04 s	Python 3	2019-04-17 11:58:41
8	Johan Stjernberg	0.05 s	Python 3	2013-04-22 01:53:59
9	Nathan Collins	0.05 s	Python 3	2016-08-22 16:36:47
10	Jeremy Tuloup	0.05 s	Python 3	2016-09-12 21:55:44

#	User	Runtime	Language	Date
1	Miorel Palii	0.04 s	Ruby	2017-12-12 02:27:07
2	Kieran Maharaj	0.06 s	Ruby	2020-12-28 13:58:23
3	Macdara mac an tSionnaigh	0.07 s	Ruby	2019-11-06 02:56:37

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2019-03-27 14:37:59
2	Hidden user	0.00 s	Rust	2019-03-28 12:29:32
3	Muhammad Rais Fathin Mudzakir	0.00 s	Rust	2021-06-16 18:43:43
4	Aaron Lengyel	0.00 s	Rust	2022-08-20 22:57:42
5	Gustaf Bergmark	0.00 s	Rust	2023-04-04 16:04:25
6	Nelson Huang	0.00 s	Rust	2024-03-24 17:33:44
7	Vincent Lagerros	0.00 s	Rust	2024-04-08 00:21:54
8	Egor Kulikov	0.00 s	Rust	2024-11-01 14:41:21
9	Emil Hultcrantz	0.00 s	Rust	2025-03-25 13:12:40
10	Loïc CARR	0.01 s	Rust	2019-04-03 19:05:48

#	User	Length	Language	Date
1	test	704	C	2025-03-05 20:37:55
2	a_b__c	985	C	2021-02-07 16:54:06
3	貓貓吃狗狗	1108	C	2015-10-06 19:18:57
4	Hidden user	1211	C	2025-01-10 11:18:00
5	Hidden user	1235	C	2017-09-09 21:59:53
6	Houssam ElBouanani	1235	C	2017-09-09 22:03:12
7	Lorenz Gerber	1249	C	2015-09-30 17:25:26
8	Ole-Magnus Pedersen	1436	C	2017-10-06 17:03:44
9	monoamine11231	1939	C	2023-10-28 15:02:14
10	Oscar Cusin	2281	C	2024-04-05 17:23:23

#	User	Length	Language	Date
1	Logan Christopher	1839	C#	2022-08-16 20:38:39
2	Joshua	2280	C#	2025-06-21 00:01:53
3	Matias Suarez	2391	C#	2025-06-20 22:33:49
4	Brandon	2917	C#	2025-06-21 00:29:39
5	PumpedByFranck Tm	3066	C#	2025-06-20 19:47:03
6	Joel Marcos Villarroel Molina	3222	C#	2025-06-26 15:41:38
7	Roger Ruiz	3968	C#	2025-07-07 17:51:56
8	Simon Ståhlberg	8606	C#	2014-03-20 15:40:36

#	User	Length	Language	Date
1	Victor Wennström	515	C++	2024-04-05 13:21:53
2	myssix	685	C++	2021-07-26 17:41:13
3	Gunnar Engström	700	C++	2023-04-03 14:47:49
4	Yufeng Zou	707	C++	2020-11-24 07:39:24
5	Hidden user	751	C++	2024-11-23 11:08:11
6	Adrien	770	C++	2024-04-20 01:01:57
7	Hriday G	792	C++	2020-05-30 07:04:47
8	Andrew Lyem	798	C++	2023-11-16 00:07:20
9	Emmanuel Anaya	820	C++	2020-11-26 08:33:09
10	Jason Cannon	856	C++	2019-12-17 17:47:49

#	User	Length	Language	Date
1	Jinwoo Lee	1069	Common Lisp	2020-10-10 06:38:41

#	User	Length	Language	Date
1	Norbert Voelker	1121	Go	2021-06-17 21:20:08
2	Vilhelm Melkstam	1508	Go	2022-05-04 12:09:23
3	Hidden user	1692	Go	2019-04-05 10:03:14
4	Aleksander Jan Mistewicz	8693	Go	2019-04-11 16:42:10

#	User	Length	Language	Date
1	David Wärn	519	Haskell	2015-05-27 12:56:23
2	Hidden user	545	Haskell	2025-02-21 08:56:52
3	Matt Jonson	983	Haskell	2020-07-14 10:48:08
4	Johan Meier	1225	Haskell	2017-01-17 14:56:35
5	Steinar Simonnes	1243	Haskell	2024-07-16 16:59:24
6	Jesper Sandström	1278	Haskell	2017-11-11 13:07:31
7	Olle Eriksson	1290	Haskell	2017-12-02 02:36:24
8	Simon Olander Sahlén	1776	Haskell	2014-11-20 15:41:13
9	Rex Wagenius	1776	Haskell	2014-11-23 22:26:13
10	Brent Yorgey	1871	Haskell	2017-11-04 06:26:08

#	User	Length	Language	Date
1	Quinn Gilbert	893	Java	2022-02-16 22:38:21
2	Doug Goodman	913	Java	2018-02-24 17:08:10
3	Crystal Sharpe	1034	Java	2021-03-20 07:39:25
4	Rodrigo Marcuschi	1058	Java	2015-11-06 16:43:45
5	udprogrammingteam Team	1086	Java	2017-06-10 06:04:49
6	Aye Chan Mon	1095	Java	2016-05-25 14:45:33
7	William Fiset	1100	Java	2015-11-11 20:03:18
8	Wang Zhi Jian	1120	Java	2019-04-22 19:40:53
9	Caeden Whitaker	1152	Java	2020-07-02 02:26:59
10	Micah Stairs	1180	Java	2016-11-25 02:57:33

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	1632	JavaScript (Node.js)	2023-01-05 16:00:47

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	19098	JavaScript (SpiderMonkey)	2020-08-26 22:36:50

#	User	Length	Language	Date
1	Timothy Gaede	871	Julia	2024-05-08 17:58:30
2	Noszály Csaba	1108	Julia	2025-09-01 18:08:28

#	User	Length	Language	Date
1	Hidden user	975	Kotlin	2017-11-26 05:56:19
2	Adam Koprowski	1551	Kotlin	2021-06-25 23:09:45
3	Jonathan Soo	1971	Kotlin	2019-09-18 08:35:26

#	User	Length	Language	Date
1	Gavin Gray	2166	OCaml	2021-08-05 05:49:34

#	User	Length	Language	Date
1	Thomas Feld	463	Python 2	2019-09-30 15:11:15
2	Haggai Liu	512	Python 2	2017-03-17 22:09:58
3	Izzati Al Vandiar	538	Python 2	2015-11-20 12:44:59
4	Andreas Björklund	652	Python 2	2019-03-15 11:22:03
5	Maj Stenmark	683	Python 2	2018-07-05 21:38:07
6	Paulo Bu	691	Python 2	2015-03-15 01:39:38
7	Mehdi Maick	714	Python 2	2016-10-30 18:45:25
8	Jacob Gummesson Atroshi	731	Python 2	2019-06-10 16:18:55
9	Lars Åström	733	Python 2	2018-07-19 21:39:10
10	Jesper Öqvist	735	Python 2	2018-11-03 14:46:30

#	User	Length	Language	Date
1	David Llorens	188	Python 3	2025-06-04 21:13:21
2	Sterling Smith	198	Python 3	2025-03-13 19:24:47
3	Michael Goldwasser	217	Python 3	2024-04-04 21:36:41
4	Peter Stauder	257	Python 3	2023-03-18 21:05:47
5	Sander Oppen	268	Python 3	2024-09-03 13:49:49
6	Tai Tze Kin	307	Python 3	2024-05-03 09:53:00
7	Yong Mao	337	Python 3	2023-10-17 23:47:40
8	Josh Taylor	341	Python 3	2024-02-09 04:26:33
9	C3Speedrun2024	346	Python 3	2024-12-10 19:08:22
10	Mina Heier	378	Python 3	2023-11-12 12:19:54

#	User	Length	Language	Date
1	Macdara mac an tSionnaigh	630	Ruby	2019-11-06 02:56:37
2	Miorel Palii	715	Ruby	2017-12-12 02:27:07
3	Kieran Maharaj	1375	Ruby	2020-12-28 13:58:23

#	User	Length	Language	Date
1	Bas Dirks	1825	Rust	2024-01-28 15:23:49
2	Loïc CARR	1869	Rust	2019-04-03 19:05:48
3	Anthony Audoin	1952	Rust	2021-01-23 16:13:18
4	Eric Pinter	1984	Rust	2020-08-02 18:55:29
5	Alfred Andersson	2248	Rust	2023-09-17 00:16:29
6	Leo Jarhede	2493	Rust	2025-05-03 20:09:05
7	Ming Kang	3718	Rust	2025-06-04 08:57:39
8	Emil Hultcrantz	4074	Rust	2025-03-25 13:12:40
9	Muhammad Rais Fathin Mudzakir	5191	Rust	2021-06-16 18:43:43
10	Aaron Lengyel	5608	Rust	2022-08-20 22:57:42

Solution running time distribution