Problem A
Dominoes 2

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Problem statistics

Submissions	6716
Accepted submissions	2152
Submission ratio	32.04%
Authors	1875
Accepted authors	1608
Author ratio	85.76%

#	User	Runtime	Date
1	Hidden user	0.00 s	2017-05-27 17:28:47
2	Gia Bao Ho	0.01 s	2016-04-13 20:46:05
3	Nguyễn Hoàng	0.01 s	2016-05-06 12:18:16
4	Bernd Schmidt	0.01 s	2017-05-13 00:52:22
5	pengin	0.01 s	2021-08-17 12:59:22
6	Will Killian	0.01 s	2022-09-27 22:35:14
7	Mehdi Maick	0.02 s	2016-08-03 23:52:32
8	Qi Chen	0.02 s	2016-10-11 06:28:43
9	Ayoub Chegraoui	0.02 s	2017-09-24 23:15:06
10	Mohamed Lamnaouar	0.02 s	2018-02-08 01:38:12

#	User	Runtime	Date
1	masosz	0.06 s	2015-02-10 21:12:27
2	Peti29	0.06 s	2017-05-12 23:22:17
3	traxex	0.06 s	2024-05-08 16:21:35
4	Андрей Титов	0.07 s	2016-02-19 08:09:11
5	Andriy Zyevakov	0.08 s	2015-10-05 22:56:32
6	Jonathan Ibrahim	0.09 s	2020-12-14 07:09:14

#	User	Runtime	Date
1	Sergio Vieri	0.00 s	2018-02-18 05:38:47
2	Alexander Kravberg	0.00 s	2022-10-24 12:48:59
3	Eyleifur Bjarkason	0.00 s	2023-02-19 17:40:51
4	Mårten Wiman	0.01 s	2014-03-06 17:34:21
5	Hidden user	0.01 s	2014-03-06 17:45:13
6	Bjarki Ágúst Guðmundsson	0.01 s	2014-05-28 20:21:20
7	Ingibergur Sindri Stefnisson	0.01 s	2014-12-10 10:57:09
8	Darri Steinn Konráðsson	0.01 s	2014-12-10 13:18:23
9	Davíð Guðni Halldórsson	0.01 s	2014-12-10 13:35:06
10	Hidden user	0.01 s	2014-12-10 14:43:38

#	User	Runtime	Date
1	Norbert Voelker	0.10 s	2021-09-28 18:52:48
2	Việt Hà Nguyễn	0.21 s	2016-08-06 20:11:51
3	Iker Lissarrague	0.24 s	2022-04-20 06:50:40
4	Kristoffer Åhgren	0.74 s	2017-08-03 23:09:21

#	User	Runtime	Date
1	Hidden user	0.04 s	2022-09-05 22:59:08
2	Markus Läll	0.21 s	2015-02-25 10:46:43
3	Mason	0.22 s	2023-08-10 04:40:45
4	Matthew Craven	0.28 s	2020-04-06 01:54:42

#	User	Runtime	Date
1	Asmus Tørsleff	0.08 s	2022-03-16 10:50:17
2	Khánh Nguyễn Tiến	0.09 s	2018-10-05 07:00:54
3	Nguyễn Hùng Cường	0.09 s	2018-10-05 07:09:54
4	Đức Phạm Hoài	0.09 s	2018-10-05 14:23:35
5	Faye Mohamed	0.10 s	2018-02-06 01:19:14
6	Hidden user	0.10 s	2018-02-07 00:02:17
7	Mehdi Maick	0.10 s	2018-12-12 19:33:07
8	Nicholas Russell Saerang	0.10 s	2023-09-30 02:09:29
9	William Fiset	0.12 s	2017-05-25 06:08:44
10	Jeremias Nathanial Liew Yong Hui	0.13 s	2019-11-24 19:20:54

#	User	Runtime	Date
1	Stephanie Keck	0.66 s	2020-03-20 01:31:51

#	User	Runtime	Date
1	Bjørn Chr. Soltvedt	0.09 s	2018-07-10 18:07:36
2	Hà Minh Ngọc	0.10 s	2016-07-29 05:52:28
3	Christian Cederquist	0.12 s	2023-06-27 16:32:59

#	User	Runtime	Date
1	Chelsea Hoernemann	0.29 s	2022-11-29 23:22:04
2	Jesper Bech Christensen	0.41 s	2023-09-26 17:59:19
3	Adam Rankin	0.43 s	2023-09-20 05:52:19
4	Hidden user	0.48 s	2019-11-23 05:20:03
5	Phường Lên	0.59 s	2019-11-21 06:49:15

#	User	Runtime	Date
1	Etienne Guillot-Marquet	0.08 s	2017-11-26 04:49:02
2	Ciara Godwin	0.09 s	2017-10-01 22:49:12
3	Thomas Feld	0.10 s	2020-05-13 08:21:50
4	Hermon Mulat	0.11 s	2018-01-06 04:27:20
5	css waw	0.11 s	2021-03-26 20:24:14
6	Yanmarshus Bachtiar	0.11 s	2021-06-03 02:58:27
7	Nick Wu	0.12 s	2015-10-05 10:40:36
8	Josenildo Silva	0.12 s	2017-05-06 20:57:44
9	Juliang Li	0.13 s	2018-03-23 22:10:41
10	Kayla Branson	0.14 s	2017-11-25 00:40:16

#	User	Runtime	Date
1	Ram Basnet	0.07 s	2018-12-05 16:05:55
2	Leon Tham	0.07 s	2019-12-05 03:32:24
3	Hyaline Seiche	0.08 s	2017-05-12 22:58:07
4	Markus	0.08 s	2019-07-10 15:57:15
5	Vishal Mohanty	0.09 s	2018-04-09 17:39:45
6	Vincent Tandya	0.09 s	2019-01-20 17:33:06
7	Viktor Rösler	0.10 s	2021-02-17 21:20:52
8	Muhammad Elfie Bin Rahim	0.10 s	2021-11-08 18:15:18
9	Fynn Schmitt-Ulms	0.11 s	2020-10-24 18:20:11
10	Emmy Yin	0.11 s	2021-01-19 22:54:33

#	User	Runtime	Date
1	Josh Coward	0.13 s	2020-08-21 09:36:26

#	User	Runtime	Date
1	Hidden user	0.01 s	2019-04-26 07:25:08
2	Robin Björklin	0.01 s	2019-04-26 10:13:11
3	Klas af Geijerstam	0.01 s	2020-11-18 16:38:30
4	Alice Ryhl	0.01 s	2022-03-11 16:34:48
5	Artur Khuziakhmetov	0.01 s	2022-07-14 09:16:34
6	Niklas Sandén	0.01 s	2023-02-21 15:37:36
7	Miguel Roldán Muñoz	0.01 s	2023-08-07 18:00:28
8	Bas Dirks	0.02 s	2022-06-14 14:43:14
9	carlo	0.02 s	2022-11-06 15:29:07
10	Polly Clémentine Nielsen Boutet-Livoff	0.46 s	2022-03-12 14:40:46

#	User	Length	Date
1	Will Killian	413	2022-09-27 22:35:14
2	Gia Bao Ho	620	2016-04-16 13:49:38
3	Nguyễn Hoàng	667	2016-04-11 14:36:16
4	Nguyen Thanh Chinh	667	2016-04-21 22:54:15
5	Charlie Bouthoorn	1077	2019-05-10 16:04:34
6	Mohamed Lamnaouar	1165	2018-02-08 01:38:12
7	Qi Chen	1693	2016-10-11 06:28:43
8	Ayoub Chegraoui	1696	2017-09-24 23:15:06
9	Mehdi Maick	1769	2016-08-03 23:52:32
10	pengin	2270	2021-08-17 12:59:22

#	User	Length	Date
1	traxex	951	2024-05-08 16:21:35
2	Peti29	1695	2017-05-12 23:22:17
3	Andriy Zyevakov	2220	2015-10-05 22:56:32
4	masosz	2571	2015-02-10 21:12:27
5	Андрей Титов	3481	2016-02-19 08:09:11
6	Jonathan Ibrahim	4639	2020-12-14 07:09:14

#	User	Length	Date
1	Nghi Gia	517	2024-04-12 09:57:30
2	William Gan	563	2017-11-29 15:19:26
3	Elias	563	2022-03-11 16:45:22
4	Yeung Man Tsung	563	2022-11-25 08:29:54
5	Quanmeng Wang	569	2015-10-16 15:40:21
6	Modan Han	573	2017-07-29 22:19:15
7	Matteo Zappia	578	2021-11-30 12:39:59
8	Filippo Xausa	598	2023-01-27 09:23:19
9	Edward Keitaro	599	2018-04-17 10:45:03
10	Wang Tingjia	601	2022-03-22 06:25:23

#	User	Length	Date
1	Kristoffer Åhgren	1115	2017-08-03 23:09:21
2	Việt Hà Nguyễn	1378	2016-08-06 20:11:51
3	Iker Lissarrague	1380	2022-04-20 06:50:40
4	Norbert Voelker	1427	2021-09-28 18:52:48

#	User	Length	Date
1	Mason	869	2023-08-10 04:40:45
2	Matthew Craven	1540	2020-04-06 01:54:42
3	Hidden user	1740	2022-09-05 22:59:08
4	Markus Läll	1801	2015-02-25 10:46:43

#	User	Length	Date
1	Natalie Longtin	757	2019-01-17 21:39:06
2	Daniel West	808	2019-01-17 21:46:03
3	Duncan Page	857	2018-03-26 23:55:15
4	Hidden user	881	2016-10-07 20:59:45
5	Stephen Royal	903	2015-08-28 18:41:02
6	Gabriela Llave	1004	2015-08-31 02:17:39
7	Younes Jarmouni	1029	2018-07-05 14:42:32
8	Viet Dang	1040	2018-03-18 03:04:17
9	Doug Goodman	1046	2017-03-24 16:16:47
10	Jesse Ventura	1049	2018-07-10 23:10:47

#	User	Length	Date
1	Stephanie Keck	6650	2020-03-20 01:31:51

#	User	Length	Date
1	Bjørn Chr. Soltvedt	661	2018-07-10 18:07:36
2	Christian Cederquist	874	2023-06-27 16:32:59
3	Hà Minh Ngọc	1492	2016-07-29 05:52:28

#	User	Length	Date
1	Jesper Bech Christensen	643	2023-09-26 17:59:19
2	Phường Lên	748	2019-11-21 06:49:15
3	Hidden user	983	2019-11-23 05:20:03
4	Adam Rankin	1496	2023-09-20 05:52:19
5	Chelsea Hoernemann	1937	2022-11-29 23:22:04

#	User	Length	Date
1	Thomas Feld	410	2020-05-13 08:21:50
2	Oskar Haarklou Veileborg	464	2019-04-24 14:14:56
3	Lars Åström	485	2018-10-23 15:09:51
4	Yupeng Gu	496	2018-06-27 05:43:41
5	Andreas Björklund	555	2020-10-22 21:45:45
6	Brandon Sovran	585	2022-02-10 01:38:41
7	css waw	624	2021-03-26 20:24:14
8	Yanmarshus Bachtiar	654	2021-06-03 02:58:27
9	Kayla Branson	675	2017-11-25 00:40:16
10	Ciara Godwin	681	2017-10-01 22:49:12

#	User	Length	Date
1	Lukas Kerren	324	2024-02-09 21:25:09
2	Will Killian	328	2022-09-27 21:00:28
3	Ng Hua Yu	401	2024-05-04 17:13:45
4	Thibault Raffaillac	402	2021-02-14 12:44:24
5	Oskar Haarklou Veileborg	417	2023-09-12 16:31:37
6	Elias Amha	429	2019-10-11 08:26:35
7	Hidden user	429	2020-11-16 13:48:17
8	Sagar Patel	436	2020-03-29 01:25:45
9	Filippo Baronello	442	2020-10-24 18:32:57
10	Lu Yuliang	444	2021-11-19 13:07:07

#	User	Length	Date
1	Josh Coward	532	2020-08-21 09:36:26

#	User	Length	Date
1	Bas Dirks	1301	2022-06-14 14:43:14
2	Artur Khuziakhmetov	1345	2022-07-14 09:16:34
3	Alice Ryhl	1423	2022-03-11 16:34:48
4	Miguel Roldán Muñoz	1799	2023-08-07 18:00:28
5	Hidden user	1920	2019-04-23 06:43:18
6	Polly Clémentine Nielsen Boutet-Livoff	1950	2022-03-12 14:40:46
7	Mikkel	2244	2023-09-19 16:56:29
8	carlo	2994	2022-11-06 15:29:07
9	Robin Björklin	3474	2019-04-25 03:36:31
10	Klas af Geijerstam	6274	2020-11-18 16:38:30

Solution running time distribution