Problem I
A Classy Problem

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Problem statistics

Submissions	18542
Accepted submissions	4712
Submission ratio	25.41%
Authors	4105
Accepted authors	3131
Author ratio	76.27%

#	User	Runtime	Date
1	Martin Stensgård	0.01 s	2017-11-12 07:22:48
2	Bergur Snorrason	0.01 s	2018-03-06 10:20:43
3	Mattias Andrée	0.01 s	2018-05-02 21:47:30
4	Isaac Pashenkov	0.01 s	2020-08-20 03:16:44
5	Gustav Nelson Schneider	0.02 s	2016-09-12 13:25:26
6	Gustav Schneider	0.02 s	2016-09-12 13:26:40
7	Eyleifur Bjarkason	0.02 s	2019-03-25 22:54:46
8	Isaac Saffold	0.02 s	2019-11-27 15:04:42
9	Didrik Madheden	0.02 s	2021-01-20 03:57:38
10	Jack Rosenthal	0.03 s	2015-11-15 08:38:19

#	User	Runtime	Date
1	Nicklas Brindstedt	0.10 s	2018-04-03 23:53:46
2	Pontus Magnusson	0.12 s	2024-03-21 14:11:51
3	Fredrik Wiström	0.14 s	2018-03-27 22:44:06
4	Patrik Blomqvist	0.20 s	2023-10-04 14:42:34
5	Tom Ilestrand	0.23 s	2019-04-15 14:11:03
6	Lucía María Alvarez Sánchez	0.23 s	2023-04-17 04:24:55
7	Jesse Jenkins	0.23 s	2023-08-24 04:27:03
8	Sano Gharzani	0.23 s	2023-11-13 19:58:42
9	Marek Bina	0.25 s	2019-02-16 17:39:48
10	Mike	0.25 s	2024-02-21 15:36:46

#	User	Runtime	Date
1	Lin Lee	0.01 s	2016-07-20 06:40:50
2	Hidden user	0.01 s	2018-04-18 16:29:26
3	Gabriel Demers	0.02 s	2015-12-22 11:35:20
4	Gustav Schneider	0.02 s	2016-09-12 14:21:03
5	Olle Eriksson	0.02 s	2017-12-10 20:39:34
6	Oscar Sandström	0.02 s	2019-05-17 04:38:23
7	Per Westermark	0.02 s	2020-03-27 01:07:45
8	CholRyong Jong	0.03 s	2015-12-06 02:47:27
9	Kazi Ashik Islam	0.03 s	2016-03-17 05:58:03
10	Dhruv Rohatgi	0.03 s	2016-04-18 05:31:45

#	User	Runtime	Date
1	Hidden user	0.42 s	2019-06-25 19:50:24
2	David Cawthon	0.78 s	2019-04-21 17:40:33

#	User	Runtime	Date
1	Thanh Dinh Ta	0.31 s	2022-07-23 17:11:27
2	Jacob Harris Cryer Kragh	0.42 s	2023-09-02 08:15:15

#	User	Runtime	Date
1	Adam Engsig	0.07 s	2023-05-11 11:06:47
2	Michael Laszlo	0.24 s	2016-12-25 10:51:12
3	Norbert Voelker	0.24 s	2022-10-15 17:11:08
4	Johannes Moberg	0.26 s	2018-12-02 23:07:03
5	Krzysztof Gibuła	0.26 s	2019-04-19 23:30:56
6	Iker Lissarrague	0.65 s	2022-03-04 19:56:41
7	Daniel Johansson	0.75 s	2019-08-11 23:41:49

#	User	Runtime	Date
1	Tomas Möre	0.09 s	2016-08-05 15:23:57
2	Isaac Arvestad	0.15 s	2017-02-17 00:42:49
3	Wilfried van Asten	0.19 s	2015-12-30 04:08:23
4	Nicholas Tanvis	0.28 s	2020-08-12 13:25:30
5	Lars Corbijn	0.38 s	2015-12-19 20:45:45
6	Jørn Lode	0.62 s	2020-10-05 23:10:51
7	Simon Marechal	0.66 s	2016-10-26 14:31:59
8	Adam Vandolder	0.66 s	2019-06-24 22:02:34
9	Aurélien Pepin	0.68 s	2019-08-08 13:27:38
10	Hidden user	0.73 s	2023-05-25 00:12:43

#	User	Runtime	Date
1	Clement Oh	0.13 s	2022-07-29 21:10:55
2	Soo Qi Xuan Ian	0.19 s	2020-10-19 20:38:41
3	Asmus Tørsleff	0.20 s	2022-01-17 13:45:28
4	Jeremias Nathanial Liew Yong Hui	0.33 s	2019-11-24 16:23:35
5	Viet Anh Ho	0.39 s	2017-03-26 18:30:03
6	Hidden user	0.40 s	2021-09-21 11:48:27
7	Anders Petersen	0.40 s	2021-09-26 13:54:36
8	Petr Ryšavý	0.41 s	2015-11-22 03:59:33
9	Joakim Algrøy	0.42 s	2018-11-15 13:26:46
10	Nick Wu	0.43 s	2016-10-22 22:43:20

#	User	Runtime	Date
1	Kenneth Chen	0.57 s	2022-06-30 05:31:08
2	Samuel Högfeldt	0.63 s	2022-07-10 14:45:07
3	Dmitrijs Balcers	0.93 s	2021-03-28 21:36:52
4	Karim Dridi	0.96 s	2022-01-14 01:11:35
5	Gert Lenaerts	1.15 s	2020-05-01 14:21:55
6	Stephanie Keck	1.17 s	2020-02-07 09:15:11
7	Hovhannes Kantuni	1.44 s	2021-03-11 22:48:53

#	User	Runtime	Date
1	Bjørn Chr. Soltvedt	0.17 s	2016-08-03 00:55:25
2	Stian Surén	0.19 s	2017-04-20 10:07:54
3	Christian Cederquist	0.21 s	2023-06-07 07:15:28
4	Knut Salomonsson	0.24 s	2016-11-01 15:24:33
5	Zeyad Osama	0.28 s	2024-01-22 04:55:45
6	Kārlis Gaņģis	0.45 s	2019-08-27 15:11:40
7	Peter Kedemo	0.48 s	2016-04-13 22:12:10
8	Djilani Kebaili	0.60 s	2018-09-23 07:15:45
9	J M	0.70 s	2016-10-07 22:01:43

#	User	Runtime	Date
1	Timothy Gaede	1.19 s	2024-04-23 20:18:09

#	User	Runtime	Date
1	Johnny Baloney	0.65 s	2022-01-03 22:55:35
2	Jacob Huebner	0.82 s	2020-02-26 03:34:40
3	Björn Holm	0.90 s	2019-04-29 16:03:35
4	Nicholas Johnson	0.90 s	2021-11-05 01:51:59
5	Hidden user	1.17 s	2020-04-11 20:02:08
6	Adam Rankin	1.45 s	2023-11-10 18:32:53
7	Adam Koprowski	1.47 s	2020-08-20 14:16:43
8	Sergey Jakobsen	1.72 s	2021-06-09 15:15:35
9	Adrian Wireklint	2.12 s	2021-12-31 15:21:15

#	User	Runtime	Date
1	Hidden user	0.23 s	2024-01-16 17:07:15
2	Evan Magill	0.27 s	2023-10-01 05:51:29

#	User	Runtime	Date
1	Borislav Anchev	0.14 s	2016-03-14 07:47:29
2	Jeff Cashion	0.15 s	2018-04-20 19:56:20
3	Connor Billings	0.16 s	2020-11-22 00:46:31

#	User	Runtime	Date
1	Johannes Agestam	0.14 s	2015-12-21 21:17:16
2	Caleb Clark	0.14 s	2017-02-27 09:39:55
3	Agis Daniels	0.14 s	2020-05-15 00:54:45
4	Manshant Singh Kohli	0.15 s	2015-12-06 00:31:32
5	Martin Jackson	0.15 s	2016-08-09 19:37:00
6	Frederik Højholt	0.15 s	2016-12-13 18:00:21
7	Adriaan de Vries	0.15 s	2017-02-16 21:59:26
8	Urban Pettersson	0.16 s	2015-11-29 12:49:40
9	Trevor Masters	0.16 s	2015-11-30 20:42:28
10	Ailo Aasen	0.16 s	2015-12-26 14:15:51

#	User	Runtime	Date
1	Karl Schärlund	0.14 s	2018-03-29 10:41:14
2	Fred Bloggs	0.15 s	2019-04-05 11:03:02
3	Hyaline Seiche	0.16 s	2017-05-13 19:09:45
4	Ryan Farrell	0.17 s	2022-07-07 05:44:21
5	Vincent Tandya	0.18 s	2018-12-16 11:22:45
6	Ryan Chew	0.18 s	2019-01-04 19:15:09
7	Ryan Strauss	0.18 s	2019-01-10 22:38:37
8	Glenn Bruns	0.18 s	2019-03-10 00:43:01
9	Z S	0.18 s	2019-05-11 00:26:36
10	Ryan Berthold	0.19 s	2018-12-20 04:01:19

#	User	Runtime	Date
1	Lee Tze Han	0.37 s	2018-06-18 18:49:42
2	Loke Gustafsson	0.42 s	2021-02-24 13:28:40
3	Hidden user	0.45 s	2019-02-16 23:14:44
4	Thomas Feld	0.48 s	2023-05-04 15:12:17
5	Odin Hufnagl	0.54 s	2024-02-06 19:26:34
6	Mohamed Elalem	0.61 s	2021-01-09 16:58:42
7	Djilani Kebaili	0.67 s	2018-09-23 19:23:36
8	Casper Christensen	0.87 s	2016-03-10 21:44:06

#	User	Runtime	Date
1	Hidden user	0.01 s	2022-02-19 01:23:50
2	Vincent Lagerros	0.03 s	2024-04-20 18:10:52
3	Mathias Svensson	0.08 s	2020-04-08 12:51:12
4	Christofer Nolander	0.09 s	2018-11-28 19:00:05
5	Pahlevi Fikri Auliya	0.09 s	2020-10-27 00:10:24
6	David Rasch	0.10 s	2021-05-11 17:18:29
7	Bas Dirks	0.10 s	2022-01-10 21:56:08
8	Daniel Anker Hermansen	0.10 s	2023-05-28 09:21:56
9	Mattias Davidsson	0.10 s	2023-09-30 21:20:32
10	Lasse Grosbøl-Rais	0.11 s	2023-09-28 14:28:52

#	User	Length	Date
1	Thibault Raffaillac	834	2017-04-24 18:41:19
2	Jack Rosenthal	1162	2015-11-15 08:38:19
3	Isaac Pashenkov	1173	2023-06-04 06:29:31
4	Mattias Andrée	1230	2018-05-02 20:55:21
5	Martin Stensgård	1519	2017-11-12 03:36:25
6	sicupu	1677	2020-11-22 09:48:19
7	Bochuan Lu	1726	2017-04-27 23:12:19
8	Gustav Schneider	1730	2016-09-12 14:21:26
9	Bui Phuong Nam	1756	2022-11-05 05:15:12
10	Sushma Kommineni	1787	2020-07-29 04:55:38

#	User	Length	Date
1	Björn Gunnarsson	1394	2016-09-18 17:22:29
2	Þorgeir Auðunn Karlsson	1394	2016-09-18 17:26:45
3	Marek Bina	1445	2019-02-16 17:39:48
4	Liam Percy	1605	2019-01-11 20:20:51
5	Marius Løkketangen	1990	2017-04-19 17:09:50
6	Benjamin Bilbeau	2159	2019-12-11 20:13:14
7	Hallvard Braaten	2178	2017-04-19 17:01:47
8	Lucía María Alvarez Sánchez	2231	2023-04-17 04:24:55
9	Jens Mellberg	2231	2023-12-26 16:23:32
10	Mikael Dahlström	2231	2022-11-24 07:45:06

#	User	Length	Date
1	David Narum	654	2018-09-04 16:14:05
2	Hyunjun Lee	756	2022-10-27 09:28:01
3	Johan Wind	767	2015-11-26 14:35:19
4	Dongjian Tang	784	2017-05-19 01:18:39
5	William Gan	790	2017-01-18 16:16:43
6	Lav Radosavljevic	798	2018-07-26 18:12:50
7	Hidden user	810	2017-10-20 12:05:02
8	Ragur Krishnan	817	2018-08-03 18:08:57
9	Birk Tjelmeland	822	2017-11-07 15:49:36
10	Manshant Singh Kohli	826	2017-02-18 23:17:47

#	User	Length	Date
1	Hidden user	1294	2019-06-25 19:25:34
2	David Cawthon	2498	2019-04-21 17:40:33

#	User	Length	Date
1	Thanh Dinh Ta	1357	2022-07-23 17:12:23
2	Jacob Harris Cryer Kragh	2106	2023-09-02 08:15:15

#	User	Length	Date
1	Iker Lissarrague	1135	2022-03-04 20:30:22
2	Daniel Johansson	1444	2019-08-11 23:41:49
3	Norbert Voelker	1447	2022-10-15 17:11:08
4	Johannes Moberg	1519	2018-12-03 14:35:41
5	Krzysztof Gibuła	1681	2019-04-19 23:30:56
6	Michael Laszlo	1811	2016-12-25 11:00:00
7	Adam Engsig	4995	2021-07-03 22:46:08

#	User	Length	Date
1	Anthony Clark	710	2017-03-04 02:47:06
2	Paul Wild	748	2018-05-01 06:43:18
3	Alberto Cerezo Cid	845	2017-03-08 22:45:58
4	Hidden user	871	2023-05-25 00:12:43
5	Nicholas Tanvis	1064	2020-08-12 13:25:30
6	Antony Lee	1074	2016-12-31 01:28:31
7	Andrew Mark Allen	1112	2017-03-09 22:55:48
8	Lim Ming Yean	1137	2019-03-29 12:30:27
9	Haobo Jiang	1254	2016-09-30 15:18:39
10	姚锦铭	1258	2016-09-30 17:29:15

#	User	Length	Date
1	Padjie	618	2022-04-19 20:48:22
2	Kiên Nguyễn Tiến Trung	926	2017-01-21 21:37:35
3	Erlandas Miezys	1161	2017-08-02 18:36:31
4	Qianlang Chen	1198	2020-09-22 05:36:59
5	Hidden user	1236	2016-08-18 09:21:31
6	Benjamin Laurence Erickson	1248	2016-10-27 01:47:21
7	Mitch Price	1265	2016-12-20 06:15:01
8	Joshua Alman	1273	2016-10-22 20:27:50
9	Hidden user	1277	2022-05-01 09:12:27
10	Hidden user	1281	2022-02-24 18:53:47

#	User	Length	Date
1	Karim Dridi	1051	2022-01-14 01:11:35
2	Hovhannes Kantuni	1703	2021-03-11 22:48:53
3	Kenneth Chen	1704	2022-06-30 05:31:08
4	Gert Lenaerts	1970	2020-05-01 14:21:55
5	Samuel Högfeldt	2042	2022-07-10 14:45:07
6	Dmitrijs Balcers	2283	2021-03-28 21:36:52
7	Stephanie Keck	15235	2020-02-07 09:15:11

#	User	Length	Date
1	Kārlis Gaņģis	441	2019-08-27 15:11:40
2	Bjørn Chr. Soltvedt	627	2016-08-03 00:55:25
3	Peter Kedemo	692	2016-04-13 22:12:10
4	Christian Cederquist	762	2023-06-07 07:15:28
5	Knut Salomonsson	1035	2016-11-01 15:24:33
6	Zeyad Osama	1051	2024-01-22 04:55:45
7	Djilani Kebaili	1185	2018-09-23 06:44:18
8	J M	1213	2016-10-07 22:01:43
9	Stian Surén	1274	2017-04-20 10:07:54

#	User	Length	Date
1	Timothy Gaede	1396	2024-04-23 20:18:09

#	User	Length	Date
1	Sergey Jakobsen	741	2021-06-09 15:15:35
2	Adam Koprowski	1047	2020-08-20 14:16:43
3	Adrian Wireklint	1109	2021-12-31 15:21:15
4	Adam Rankin	1319	2023-11-10 18:32:53
5	Jacob Huebner	1591	2020-02-26 03:34:40
6	Johnny Baloney	1663	2022-01-03 22:48:44
7	Hidden user	2211	2020-04-11 20:02:08
8	Björn Holm	2319	2019-04-29 15:52:00
9	Nicholas Johnson	2944	2021-11-05 01:51:59

#	User	Length	Date
1	Hidden user	1311	2024-01-16 17:07:15
2	Evan Magill	1508	2023-10-01 05:51:29

#	User	Length	Date
1	Borislav Anchev	989	2016-03-14 07:47:29
2	Connor Billings	1388	2020-11-22 00:46:31
3	Jeff Cashion	1730	2018-04-20 19:56:20

#	User	Length	Date
1	Thomas Feld	322	2019-08-21 15:15:44
2	Johannes Agestam	334	2015-12-21 20:57:22
3	Justin Su	341	2019-10-02 00:14:46
4	Nico Weber	393	2016-11-16 22:46:04
5	Daniel Strizhevsky	397	2016-10-22 20:09:23
6	Jeff Robertson	399	2017-04-16 03:39:42
7	Lim Hong Hui Eugene	400	2016-08-07 04:29:01
8	Fan Jiang	413	2018-09-27 23:24:51
9	Maryam Miri	414	2017-03-09 08:12:03
10	Edward Sikorski	417	2016-05-22 10:23:03

#	User	Length	Date
1	Erik Åman	193	2023-12-08 20:52:13
2	Gustav Elmqvist	199	2023-03-28 00:01:39
3	Kaaden RumanCam	211	2023-04-27 06:10:52
4	Kevin Gomez	228	2023-08-28 06:55:42
5	Ahmed Chamseddine	237	2023-10-23 11:50:29
6	Patrick Jung	243	2022-11-05 04:09:20
7	Lee Isaac	261	2023-05-27 20:28:41
8	Marco Cieno	301	2019-01-16 00:07:21
9	John Key	306	2022-06-13 17:04:24
10	Johannes Agestam	307	2015-12-21 21:01:00

#	User	Length	Date
1	Thomas Feld	130	2023-05-04 15:12:17
2	Hidden user	602	2019-02-16 23:14:44
3	Casper Christensen	652	2016-03-18 18:06:50
4	Mohamed Elalem	712	2021-01-09 16:58:42
5	Lee Tze Han	771	2018-06-18 18:49:42
6	Loke Gustafsson	820	2021-02-24 13:28:40
7	Djilani Kebaili	893	2018-09-23 19:23:36
8	Odin Hufnagl	2549	2024-02-06 19:26:34

#	User	Length	Date
1	Bas Dirks	1444	2022-01-10 21:56:08
2	Mathias Svensson	1501	2020-04-08 12:51:12
3	David Rasch	1825	2021-05-11 17:18:29
4	Simon Hallefält	1938	2023-07-13 15:14:22
5	Hidden user	2111	2022-02-19 05:15:54
6	Ritwin Narra	2302	2021-06-18 05:22:25
7	Nikita Chudakov	2304	2024-01-25 00:45:37
8	Lasse Grosbøl-Rais	2537	2023-09-28 14:28:52
9	Mattias Davidsson	2578	2023-09-30 21:20:32
10	Vincent Lagerros	2589	2024-04-20 18:11:22

Solution running time distribution