Problem A
Supercomputer — Problem Statistics

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Submissions	11646
Accepted submissions	4402
Submission ratio	37.80%
Authors	3383
Full solves [?]	2973
Full solve Ratio	87.88%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.02 s	C	2019-02-12 20:31:44
2	Eyleifur Bjarkason	0.02 s	C	2019-02-13 19:31:45
3	Alexander Bilde Pedersen	0.02 s	C	2023-03-23 21:20:43
4	Blake Lasky	0.03 s	C	2016-11-08 18:04:36
5	Hidden user	0.03 s	C	2018-03-19 21:21:38
6	Mirel Cosulschi	0.03 s	C	2025-04-22 14:36:19
7	Klas af Geijerstam	0.04 s	C	2017-08-05 21:03:39
8	Ioannis Br	0.04 s	C	2020-04-01 18:33:22
9	Jaan Jaerving	0.04 s	C	2022-02-13 23:21:43
10	Nick Hargrove	0.04 s	C	2022-05-17 04:18:51

#	User	Runtime	Language	Date
1	Klas af Geijerstam	0.14 s	C#	2017-08-06 19:30:15
2	Андрей Титов	0.16 s	C#	2016-05-06 12:45:43
3	Fredrik Absalonsen	0.37 s	C#	2018-04-03 12:43:40
4	traxex	0.45 s	C#	2024-05-27 13:00:35
5	Lukas P.	0.47 s	C#	2026-03-03 18:51:33
6	Rafael Steffen Nguyen Jensen	0.48 s	C#	2025-04-01 00:07:31
7	Apurav Khare	0.55 s	C#	2021-11-24 03:40:20
8	Edvin Mako	0.56 s	C#	2020-03-09 15:11:02
9	Nathan Andrews	0.56 s	C#	2024-09-19 18:12:32
10	Lecio	0.58 s	C#	2025-09-16 04:47:39

#	User	Runtime	Language	Date
1	Lukas Rickie	0.01 s	C++	2021-08-21 03:00:45
2	Alexander Kravberg	0.01 s	C++	2023-01-11 22:54:23
3	Leif Eriksson	0.02 s	C++	2018-02-08 13:55:13
4	Antoni Guz	0.02 s	C++	2018-03-21 01:03:05
5	David Berard	0.02 s	C++	2018-03-26 05:11:19
6	Kieran Horgan	0.02 s	C++	2018-05-11 00:58:40
7	Ashley Khoo	0.02 s	C++	2018-10-10 09:18:23
8	Tanner Hoke	0.02 s	C++	2019-02-02 23:21:09
9	Garðar Ingvarsson	0.02 s	C++	2019-02-12 23:28:18
10	Hans Tananda	0.02 s	C++	2019-10-26 09:38:19

#	User	Runtime	Language	Date
1	Iker Lissarrague	0.15 s	Go	2022-03-15 00:58:02
2	Anna Winters	0.17 s	Go	2016-10-17 05:06:52
3	Nathan Lee	0.19 s	Go	2025-09-21 18:19:22
4	Norbert Voelker	0.55 s	Go	2022-02-21 22:24:10

#	User	Runtime	Language	Date
1	Stian	0.83 s	Haskell	2020-02-19 22:00:53
2	Matthew Craven	0.87 s	Haskell	2020-08-29 19:07:56
3	Joseph Chau	1.77 s	Haskell	2024-02-18 04:42:53

#	User	Runtime	Language	Date
1	Asmus Tørsleff	0.13 s	Java	2022-03-22 12:41:48
2	Nguyễn Hùng Cường	0.14 s	Java	2018-10-06 10:21:35
3	Khánh Nguyễn Tiến	0.14 s	Java	2018-10-08 05:58:39
4	Bjørn Dons	0.14 s	Java	2018-10-19 00:51:24
5	Emil Bak-Møller	0.14 s	Java	2021-02-09 22:15:01
6	Alvin Lee	0.15 s	Java	2025-10-08 16:45:39
7	John Ladera	0.20 s	Java	2019-12-07 04:11:22
8	Charlotte Zhuang	0.20 s	Java	2020-11-14 01:06:53
9	Ahmad Barhamje	0.22 s	Java	2018-08-24 19:18:14
10	Jacob Zhang	0.24 s	Java	2022-11-07 23:35:05

#	User	Runtime	Language	Date
1	Paulo	0.14 s	JavaScript (Node.js)	2026-02-27 19:47:57
2	Stephanie Keck	1.39 s	JavaScript (Node.js)	2020-02-08 23:31:00

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.27 s	JavaScript (SpiderMonkey)	2023-06-15 17:46:23
2	Bjørn Chr. Soltvedt	0.30 s	JavaScript (SpiderMonkey)	2020-11-09 02:01:02

#	User	Runtime	Language	Date
1	Hidden user	0.54 s	Julia	2025-03-12 06:53:05
2	Danny Robinson	2.57 s	Julia	2023-06-24 00:22:10

#	User	Runtime	Language	Date
1	Jacob Huebner	0.31 s	Kotlin	2022-05-04 21:28:54
2	Adam Koprowski	0.43 s	Kotlin	2020-09-04 15:52:08
3	Allen Guan	0.51 s	Kotlin	2022-03-26 15:09:58
4	Sam Keyser	0.54 s	Kotlin	2023-05-03 17:31:05
5	Adam Rankin	0.72 s	Kotlin	2023-09-10 18:30:55
6	Hidden user	0.76 s	Kotlin	2018-03-21 16:40:06
7	Benjamin Ye	0.78 s	Kotlin	2023-02-22 21:51:01
8	Ditlef Alexander Diseth	0.95 s	Kotlin	2020-02-19 20:30:01
9	Phường Lên	1.04 s	Kotlin	2020-05-19 18:13:08
10	Dayan Ruben Gonzalez	1.07 s	Kotlin	2020-10-11 03:43:15

#	User	Runtime	Language	Date
1	Caleb Austin	0.30 s	Lua	2024-12-09 20:46:59

#	User	Runtime	Language	Date
1	Mehir Arora	0.18 s	OCaml	2023-02-24 03:53:16
2	Jakob Rødal Skaar	0.23 s	OCaml	2025-12-22 21:33:20

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.12 s	Python 2	2020-10-25 02:14:42
2	Frederik Højholt	0.13 s	Python 2	2016-09-04 19:08:12
3	Øyvind Haarberg	0.14 s	Python 2	2018-02-07 17:13:35
4	Ciara Godwin	0.15 s	Python 2	2017-07-28 11:46:52
5	Uyen Vo	0.15 s	Python 2	2018-02-09 10:10:23
6	Hidden user	0.15 s	Python 2	2018-02-09 16:17:33
7	Svetlana Halnes	0.15 s	Python 2	2018-03-22 21:20:55
8	Sigurður Jens Albertsson	0.17 s	Python 2	2017-11-11 00:50:00
9	Jonathan Grimes	0.19 s	Python 2	2018-02-06 03:21:28
10	Gunvor Lemvik	0.19 s	Python 2	2018-03-05 10:20:08

#	User	Runtime	Language	Date
1	Sabrine Shami Karanganwa	0.10 s	Python 3	2025-09-27 03:38:17
2	Petr	0.11 s	Python 3	2025-06-15 00:01:40
3	Avery	0.12 s	Python 3	2025-09-03 03:50:03
4	Ryan Rodriguez	0.13 s	Python 3	2024-11-23 05:36:23
5	Hidden user	0.13 s	Python 3	2025-02-11 03:44:06
6	Hidden user	0.13 s	Python 3	2025-02-12 22:07:11
7	Diego Randolp Quispe Apaza	0.13 s	Python 3	2025-06-14 00:14:24
8	Hidden user	0.13 s	Python 3	2025-10-17 05:13:15
9	Brian Sen	0.13 s	Python 3	2025-11-17 07:23:38
10	Mohammed Al Robiay	0.13 s	Python 3	2025-11-27 03:21:06

#	User	Runtime	Language	Date
1	Andreas Severin Hauch Trøstrup	0.49 s	Ruby	2023-04-03 00:39:33
2	Thomas Feld	0.51 s	Ruby	2023-06-30 10:28:38
3	Hidden user	0.52 s	Ruby	2019-06-01 18:45:13
4	Alexander Bilde Pedersen	0.54 s	Ruby	2023-03-23 17:19:36

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2024-04-21 03:20:28
2	Adrian Borup	0.02 s	Rust	2023-03-21 15:01:33
3	Albert Rise Nielsen	0.02 s	Rust	2023-03-21 16:59:34
4	Jonathan Choi	0.02 s	Rust	2024-04-28 21:59:15
5	Egor Kulikov	0.02 s	Rust	2024-12-20 12:51:23
6	Joe Blower	0.02 s	Rust	2025-08-08 02:59:45
7	Leonard Jarlskog	0.02 s	Rust	2026-02-17 21:40:42
8	Eric Pinter	0.03 s	Rust	2020-10-25 03:28:26
9	Pahlevi Fikri Auliya	0.03 s	Rust	2020-11-11 23:46:26
10	Constantijn Dekker	0.04 s	Rust	2021-05-23 12:41:48

#	User	Length	Language	Date
1	Mirel Cosulschi	738	C	2025-04-22 14:33:43
2	Mickael Torres	749	C	2018-04-22 18:57:19
3	Alexander Bilde Pedersen	855	C	2023-03-23 16:12:43
4	pengin	857	C	2021-05-25 12:49:28
5	Blake Lasky	893	C	2016-10-19 22:08:02
6	Zlatan L	1000	C	2017-05-02 01:36:29
7	Bochuan Lu	1033	C	2017-05-02 01:40:58
8	Svein Høgemo	1109	C	2018-04-03 14:33:06
9	Jaan Jaerving	1221	C	2022-02-13 23:21:43
10	Jacob Stringer	1269	C	2017-06-07 04:11:57

#	User	Length	Language	Date
1	traxex	550	C#	2024-05-27 13:00:35
2	Lawry Sorenson	1243	C#	2025-09-16 04:42:46
3	Lecio	1243	C#	2025-09-16 04:47:39
4	Apurav Khare	1441	C#	2021-11-24 03:40:20
5	Lukas P.	1496	C#	2026-03-03 18:51:33
6	Rafael Steffen Nguyen Jensen	1624	C#	2025-04-01 00:07:31
7	Nathan Andrews	1651	C#	2024-09-19 18:12:32
8	Fredrik Absalonsen	1653	C#	2018-04-03 12:43:40
9	Klas af Geijerstam	2242	C#	2017-08-06 19:21:44
10	Edvin Mako	2564	C#	2020-03-09 15:11:02

#	User	Length	Language	Date
1	Nathaniel Ang	425	C++	2020-02-05 14:01:31
2	Lawry Sorenson	449	C++	2023-09-25 23:22:10
3	Ariel García Morán	521	C++	2018-04-13 21:30:29
4	Munir Kudrati-Plummer	524	C++	2024-10-02 05:53:36
5	Elias Lolck	533	C++	2022-03-11 16:51:20
6	Tuukka Korhonen	557	C++	2022-02-18 10:37:40
7	Lim An Jun	563	C++	2023-01-21 05:20:14
8	Hugo Eberhard	565	C++	2018-02-26 19:35:52
9	Moncef Mhasni	572	C++	2018-08-26 15:13:25
10	Roger Chen	579	C++	2021-08-22 23:24:46

#	User	Length	Language	Date
1	Nathan Lee	1297	Go	2025-09-21 18:19:22
2	Anna Winters	1335	Go	2016-10-16 17:14:02
3	Iker Lissarrague	1466	Go	2022-03-15 00:58:02
4	Norbert Voelker	2512	Go	2022-02-21 22:24:10

#	User	Length	Language	Date
1	Stian	1568	Haskell	2020-02-18 14:15:22
2	Matthew Craven	1588	Haskell	2020-08-29 19:07:56
3	Joseph Chau	3251	Haskell	2024-02-18 04:42:53

#	User	Length	Language	Date
1	Manuel Carrilo	664	Java	2019-02-11 01:44:46
2	Jasper Pillejera	675	Java	2019-02-09 08:56:02
3	Florian Rödig	735	Java	2016-11-10 09:37:55
4	Oliver Zsivanov	741	Java	2016-10-27 23:53:19
5	Gordon Lee	742	Java	2022-10-15 18:20:08
6	Calum Bird	762	Java	2020-02-07 01:11:29
7	Carter Shavitz	769	Java	2024-03-21 16:35:18
8	Harris, Asher	809	Java	2024-03-21 15:44:02
9	Oskar Leirvåg	823	Java	2020-03-02 00:41:44
10	Andri Mar	877	Java	2020-02-17 15:14:04

#	User	Length	Language	Date
1	Paulo	727	JavaScript (Node.js)	2026-02-27 19:47:57
2	Stephanie Keck	11615	JavaScript (Node.js)	2020-02-08 23:31:00

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	1007	JavaScript (SpiderMonkey)	2020-11-09 02:01:02
2	Christian Pilegaard Cederquist	1138	JavaScript (SpiderMonkey)	2023-06-15 17:46:23

#	User	Length	Language	Date
1	Danny Robinson	145	Julia	2023-06-24 00:22:10
2	Hidden user	750	Julia	2025-03-12 06:53:05

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	849	Kotlin	2020-10-11 03:43:15
2	Benjamin Ye	1013	Kotlin	2023-02-22 21:51:01
3	Adam Rankin	1035	Kotlin	2023-09-10 18:30:55
4	Sam Keyser	1296	Kotlin	2023-05-03 17:31:05
5	Adam Koprowski	1437	Kotlin	2020-09-04 22:52:49
6	Allen Guan	1504	Kotlin	2022-03-26 15:09:58
7	Luca Mueller	1664	Kotlin	2024-11-22 21:28:30
8	Jacob Huebner	2510	Kotlin	2022-05-04 21:28:54
9	Phường Lên	3575	Kotlin	2020-05-19 18:13:08
10	Hidden user	3732	Kotlin	2018-03-21 16:40:06

#	User	Length	Language	Date
1	Caleb Austin	809	Lua	2024-12-09 20:46:59

#	User	Length	Language	Date
1	Mehir Arora	1089	OCaml	2023-02-24 03:53:16
2	Jakob Rødal Skaar	1677	OCaml	2025-12-22 21:06:00

#	User	Length	Language	Date
1	Nathan Villanueva	576	Python 2	2017-02-10 21:06:04
2	Ciara Godwin	578	Python 2	2017-07-28 19:51:15
3	Johan Lyts	643	Python 2	2019-04-07 22:00:37
4	Ida Ryland	689	Python 2	2016-11-09 20:40:53
5	Yanmarshus Bachtiar	717	Python 2	2020-10-25 02:14:42
6	Andreas Björklund	758	Python 2	2020-03-08 10:10:23
7	Yupeng Gu	781	Python 2	2018-05-03 02:41:08
8	Long Qian	813	Python 2	2017-06-03 07:00:09
9	Uyen Vo	841	Python 2	2018-02-09 10:10:23
10	Hidden user	841	Python 2	2018-02-09 16:17:33

#	User	Length	Language	Date
1	Tistou	259	Python 3	2023-02-27 00:40:10
2	Anshuman Dash	269	Python 3	2023-02-23 07:51:25
3	Gustav Elmqvist	272	Python 3	2023-02-16 23:43:07
4	Charles Ancheta	301	Python 3	2023-04-15 04:55:43
5	Björn Thor Stefánsson	301	Python 3	2024-02-19 14:45:34
6	Jonathan Dastrup	336	Python 3	2024-09-16 17:55:58
7	Aditya Jithesh	342	Python 3	2024-11-22 18:02:48
8	Noah Hessen Bjerke	347	Python 3	2025-11-08 20:11:40
9	Varun Asuri	355	Python 3	2023-04-07 04:05:44
10	Andreas Just Petersen	381	Python 3	2023-03-21 15:10:13

#	User	Length	Language	Date
1	Thomas Feld	181	Ruby	2025-08-26 13:28:40
2	Alexander Bilde Pedersen	211	Ruby	2023-03-23 17:25:00
3	Hidden user	507	Ruby	2019-06-01 18:45:13
4	Andreas Severin Hauch Trøstrup	638	Ruby	2023-04-03 00:43:52

#	User	Length	Language	Date
1	Otakar Hirs	822	Rust	2023-03-10 14:11:22
2	Joshua Ji	1346	Rust	2020-11-26 16:33:21
3	Jonas Fuhr Høyer	1507	Rust	2023-06-12 22:21:58
4	WalkerKnapp	1541	Rust	2024-10-08 23:38:46
5	Albert Rise Nielsen	1575	Rust	2023-03-21 15:48:36
6	Hidden user	1597	Rust	2025-11-19 10:53:43
7	Adrian Borup	1716	Rust	2023-03-21 15:15:18
8	Alice Ryhl	1862	Rust	2022-03-11 16:59:16
9	Jianghua Wang	1947	Rust	2023-02-22 22:15:58
10	Hidden user	1964	Rust	2018-12-21 20:51:16

Solution running time distribution