Problem I
Okvir — Problem Statistics

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Submissions	1555
Accepted submissions	845
Submission ratio	54.34%
Authors	823
Full solves [?]	765
Full solve Ratio	92.95%

#	User	Runtime	Language	Date
1	Greg Roderick	0.02 s	C#	2015-10-02 12:40:40
2	David Bergman	0.02 s	C#	2015-10-06 09:49:41
3	Khin Nyunt	0.02 s	C#	2017-03-27 05:41:54
4	Gustav Kalander	0.02 s	C#	2018-02-03 15:56:29
5	Дмитро Рудий	0.02 s	C#	2018-04-24 15:34:11
6	Marek	0.02 s	C#	2018-11-28 17:17:54
7	Andrzej Krajniak	0.02 s	C#	2018-11-28 17:25:11
8	Paweł Grudzień	0.02 s	C#	2018-11-28 17:41:27
9	Hidden user	0.02 s	C#	2018-12-26 23:01:44
10	Sai Sri Vathsava Udathu	0.02 s	C#	2021-02-19 21:33:58

#	User	Runtime	Language	Date
1	Poramet Makul	0.00 s	Go	2025-07-08 17:26:58
2	Krzysztof Gibuła	0.07 s	Go	2019-03-05 23:19:42
3	Norbert Voelker	0.08 s	Go	2021-05-08 19:33:28
4	Resa Renaldy	0.08 s	Go	2021-08-03 09:37:41

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2015-02-17 14:47:15
2	Lars Tveito	0.00 s	Haskell	2015-07-30 14:52:48
3	David Wärn	0.00 s	Haskell	2015-10-09 13:58:51
4	Patrik Lilja	0.00 s	Haskell	2016-03-28 20:19:13
5	Johan Meier	0.00 s	Haskell	2017-01-06 05:14:09
6	Brent Yorgey	0.00 s	Haskell	2017-10-23 00:14:11
7	Olle Eriksson	0.00 s	Haskell	2018-06-28 18:13:21
8	Steinar Simonnes	0.00 s	Haskell	2024-02-04 17:22:16
9	Hidden user	0.01 s	Haskell	2019-08-28 17:44:36
10	Jan Hrček	0.01 s	Haskell	2021-03-12 07:11:21

#	User	Runtime	Language	Date
1	Elias Hrafn Halldórsson	0.04 s	Java	2024-09-29 06:09:06
2	Anders Ye	0.05 s	Java	2014-02-20 17:38:41
3	Dennis Ang	0.05 s	Java	2015-10-07 09:50:32
4	Pål Forsberg	0.05 s	Java	2015-10-10 08:16:34
5	Michel Langeveld	0.05 s	Java	2015-12-05 22:53:36
6	Terrence Park	0.05 s	Java	2016-01-12 04:17:53
7	Michael Sullivan	0.05 s	Java	2016-01-15 02:32:01
8	Nick Wu	0.05 s	Java	2016-02-05 07:13:59
9	Sebastian Gedin	0.05 s	Java	2016-02-23 19:29:20
10	Hidden user	0.05 s	Java	2016-02-26 18:48:20

#	User	Runtime	Language	Date
1	Gurpartap Singh Bhatti	0.05 s	JavaScript (Node.js)	2019-06-17 07:32:33
2	Samuel Högfeldt	0.08 s	JavaScript (Node.js)	2022-08-09 10:41:12
3	Jay Cruz	0.09 s	JavaScript (Node.js)	2023-05-09 17:49:09
4	Tilo Hirsch	0.42 s	JavaScript (Node.js)	2020-07-13 21:15:26
5	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-24 07:47:34
6	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-11-27 15:59:59

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-21 23:08:17
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-01-16 18:56:42
3	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-31 06:13:17
4	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-08-06 10:48:50
5	Peter Menyes	0.03 s	JavaScript (SpiderMonkey)	2021-10-15 16:44:11

#	User	Runtime	Language	Date
1	Timothy Gaede	0.57 s	Julia	2024-04-10 12:07:42

#	User	Runtime	Language	Date
1	Einar Kjellback	0.19 s	Kotlin	2020-08-18 16:32:49
2	Adam Rankin	0.19 s	Kotlin	2023-05-08 19:12:19
3	Neil Harmon	0.20 s	Kotlin	2019-05-23 16:42:32
4	Dayan Ruben Gonzalez	0.20 s	Kotlin	2020-10-05 15:57:04
5	Einar Kristiansen	0.20 s	Kotlin	2022-02-24 12:09:17

#	User	Runtime	Language	Date
1	Hoang Duong	0.00 s	Pascal	2018-03-29 19:24:14
2	Ingemar Ragnemalm	0.00 s	Pascal	2018-06-26 10:34:58

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.02 s	Python 2	2015-07-09 16:13:54
2	Asger Hautop Drewsen	0.02 s	Python 2	2015-09-24 05:23:57
3	Neal Zane	0.02 s	Python 2	2016-02-02 05:40:54
4	Denis Godunov	0.02 s	Python 2	2016-07-20 23:24:35
5	Marcus Johansson	0.02 s	Python 2	2016-09-24 10:31:42
6	Maksym Bendeberia	0.02 s	Python 2	2016-10-25 14:09:11
7	Cole Bite	0.02 s	Python 2	2017-04-25 01:51:51
8	Frederik Højholt	0.03 s	Python 2	2015-12-02 20:12:52
9	Urban Pettersson	0.03 s	Python 2	2016-02-10 21:06:10
10	Hasan Ramezani	0.03 s	Python 2	2016-11-13 15:20:04

#	User	Runtime	Language	Date
1	Casper Hagenaars	0.02 s	Python 3	2015-11-15 12:32:13
2	Johannes Agestam	0.02 s	Python 3	2015-12-16 21:40:00
3	Wayne	0.02 s	Python 3	2016-01-31 13:37:25
4	Robert Welin-Berger	0.02 s	Python 3	2016-02-24 09:40:11
5	Cvetka F	0.02 s	Python 3	2016-04-20 11:44:14
6	Lea Kos	0.02 s	Python 3	2016-04-21 20:41:47
7	Ciara Godwin	0.02 s	Python 3	2017-03-17 16:33:49
8	Cian Ruane	0.02 s	Python 3	2017-03-24 02:05:07
9	Clifford Owino	0.02 s	Python 3	2017-06-22 22:36:37
10	Nguyen Anh Vu	0.02 s	Python 3	2017-07-28 12:11:47

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2016-02-23 12:25:36
2	Naoki Mizuno	0.03 s	Ruby	2016-04-02 10:08:43
3	Kok Dith	0.05 s	Ruby	2021-08-29 05:54:03
4	Thomas Feld	0.06 s	Ruby	2023-09-22 11:14:20

#	User	Runtime	Language	Date
1	Pahlevi Fikri Auliya	0.00 s	Rust	2020-10-19 00:50:38
2	Bas Dirks	0.00 s	Rust	2022-02-05 10:41:26
3	Freek van Keulen	0.00 s	Rust	2023-10-12 20:35:04
4	Vincent Lagerros	0.00 s	Rust	2025-08-19 17:21:31

#	User	Length	Language	Date
1	Mikael K Eriksson	600	C	2021-03-24 14:12:31
2	PhilCampbell	643	C	2021-02-01 18:30:44
3	Hidden user	770	C	2017-11-26 07:31:33
4	Mustapha Slimani	771	C	2020-05-31 11:43:30
5	Naveen Kumar S	802	C	2025-04-09 15:06:44
6	Johan Öhlin	853	C	2017-08-15 14:42:16
7	Cooper Davis	950	C	2024-04-19 18:44:56
8	Felipe Rodriguez Atuesta	986	C	2019-09-12 23:21:31
9	Andrew Roberts	1039	C	2017-09-02 09:17:50
10	Julian Duniec	1112	C	2023-10-11 09:50:57

#	User	Length	Language	Date
1	Göran Andersson	1081	C#	2022-05-21 16:19:09
2	Aaron Michael	1320	C#	2023-08-24 17:58:44
3	Gustav Kalander	1465	C#	2018-02-03 15:56:29
4	Khin Nyunt	1670	C#	2017-03-27 05:41:54
5	Дмитро Рудий	1673	C#	2018-04-24 15:34:11
6	Eric Weiss	1810	C#	2022-09-09 17:00:27
7	Paweł Grudzień	1874	C#	2018-11-28 17:41:27
8	Marek	1946	C#	2018-11-28 17:17:54
9	Umar Rasyid	2098	C#	2025-07-19 01:21:28
10	David Bergman	2193	C#	2015-10-06 09:49:41

#	User	Length	Language	Date
1	Antonio Molina Lovett	376	C++	2016-08-09 08:30:57
2	Johan Wind	388	C++	2015-09-21 16:22:12
3	Frederick Pek	393	C++	2021-06-14 14:44:32
4	Keefe Johnson	410	C++	2017-05-29 13:10:24
5	William Gan	411	C++	2018-01-02 16:49:53
6	David Venhoek	416	C++	2016-01-11 14:55:46
7	Mårten Wiman	427	C++	2014-02-20 17:26:40
8	Manshant Singh Kohli	439	C++	2016-02-27 05:10:50
9	tarflah	452	C++	2016-12-08 14:31:07
10	Lawrence Li	477	C++	2016-03-22 12:32:52

#	User	Length	Language	Date
1	Krzysztof Gibuła	816	Go	2019-03-05 23:19:42
2	Poramet Makul	849	Go	2025-07-08 17:26:58
3	Norbert Voelker	960	Go	2021-05-08 19:33:28
4	Resa Renaldy	986	Go	2021-08-03 09:37:41

#	User	Length	Language	Date
1	David Wärn	442	Haskell	2015-10-09 13:58:51
2	Steinar Simonnes	539	Haskell	2024-02-04 17:22:16
3	Hidden user	603	Haskell	2019-08-28 17:44:36
4	Lars Tveito	676	Haskell	2015-07-30 14:52:48
5	Johan Meier	883	Haskell	2017-01-06 05:14:09
6	Olle Eriksson	914	Haskell	2018-06-28 18:13:21
7	Patrik Lilja	977	Haskell	2016-03-28 20:19:13
8	Jan Hrček	994	Haskell	2021-03-12 07:11:21
9	Brent Yorgey	1278	Haskell	2017-10-23 00:14:11
10	Hidden user	4042	Haskell	2015-02-17 14:47:15

#	User	Length	Language	Date
1	Doug Goodman	678	Java	2018-03-07 19:47:45
2	Caeden Whitaker	796	Java	2020-07-22 01:53:46
3	Simon Xue	877	Java	2016-02-28 09:04:27
4	Charley Sheaffer	898	Java	2018-10-07 22:32:52
5	Natalie Axelsson	902	Java	2016-02-22 22:07:02
6	Raymond Arrington	903	Java	2024-06-21 20:35:42
7	Marshall D Feng	927	Java	2022-02-20 00:40:17
8	Jan Štola	934	Java	2015-05-15 23:03:54
9	Khin Nyunt	939	Java	2017-11-09 16:19:17
10	Matthew Tennyson	943	Java	2023-02-16 14:39:42

#	User	Length	Language	Date
1	Gurpartap Singh Bhatti	1206	JavaScript (Node.js)	2019-06-17 07:32:33
2	Andoko Chandra	1373	JavaScript (Node.js)	2020-10-24 07:47:34
3	Samuel Högfeldt	1544	JavaScript (Node.js)	2022-08-09 10:41:12
4	Tilo Hirsch	1623	JavaScript (Node.js)	2020-07-13 21:15:26
5	Khin Nyunt	1973	JavaScript (Node.js)	2021-11-27 15:59:59
6	Jay Cruz	3213	JavaScript (Node.js)	2023-05-09 17:49:09

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	330	JavaScript (SpiderMonkey)	2023-01-31 06:13:17
2	Jimmy Gustafsson	330	JavaScript (SpiderMonkey)	2024-08-06 10:48:50
3	Peter Menyes	466	JavaScript (SpiderMonkey)	2021-10-15 16:44:11
4	Bjørn Chr. Soltvedt	898	JavaScript (SpiderMonkey)	2016-01-16 18:56:42
5	Peter Kedemo	1119	JavaScript (SpiderMonkey)	2015-12-21 23:08:17

#	User	Length	Language	Date
1	Timothy Gaede	787	Julia	2024-04-10 12:07:42

#	User	Length	Language	Date
1	Adam Rankin	759	Kotlin	2023-05-08 19:12:19
2	Dayan Ruben Gonzalez	952	Kotlin	2020-10-05 15:57:04
3	Einar Kjellback	1002	Kotlin	2020-08-18 16:32:49
4	Neil Harmon	1597	Kotlin	2019-05-23 16:42:32
5	Einar Kristiansen	2012	Kotlin	2022-02-24 12:09:17

#	User	Length	Language	Date
1	Ingemar Ragnemalm	674	Pascal	2018-06-26 10:34:58
2	Hoang Duong	764	Pascal	2018-03-29 19:24:14

#	User	Length	Language	Date
1	Thomas Feld	252	Python 2	2019-09-03 16:24:08
2	Neal Zane	298	Python 2	2016-02-02 05:40:54
3	Jesper Öqvist	365	Python 2	2018-10-24 21:38:03
4	Maj Stenmark	367	Python 2	2020-01-09 03:35:55
5	Lars Åström	374	Python 2	2019-10-18 11:19:48
6	Johan Lyts	412	Python 2	2019-12-15 21:21:25
7	Marcus Johansson	419	Python 2	2016-09-24 10:31:42
8	Maksym Bendeberia	422	Python 2	2016-10-25 14:09:11
9	Johann Ly	488	Python 2	2018-07-13 09:20:02
10	Asger Hautop Drewsen	504	Python 2	2015-09-24 05:23:57

#	User	Length	Language	Date
1	Thibault Raffaillac	180	Python 3	2024-07-29 12:54:20
2	Jakob Lønnerød Madsen	213	Python 3	2023-10-08 16:49:34
3	Tai Tze Kin	230	Python 3	2024-05-06 17:43:01
4	Yong Mao	235	Python 3	2023-09-20 23:39:31
5	Vedran Čačić	256	Python 3	2019-03-05 05:09:52
6	Guan Yang Ze	283	Python 3	2021-12-29 19:18:22
7	Hidden user	297	Python 3	2020-07-26 23:16:11
8	Clement Oh	297	Python 3	2023-10-01 18:37:52
9	Jason Cannon	303	Python 3	2019-11-07 22:13:30
10	M Base 2	308	Python 3	2020-07-10 20:08:15

#	User	Length	Language	Date
1	Thomas Feld	121	Ruby	2023-09-22 11:17:42
2	Kok Dith	422	Ruby	2021-08-29 05:54:03
3	Casper Christensen	520	Ruby	2016-02-23 12:25:36
4	Naoki Mizuno	572	Ruby	2016-04-02 10:08:43

#	User	Length	Language	Date
1	Vincent Lagerros	1028	Rust	2025-08-19 17:21:31
2	Freek van Keulen	1589	Rust	2023-10-12 20:35:04
3	Pahlevi Fikri Auliya	2259	Rust	2020-10-19 00:50:38
4	Bas Dirks	2732	Rust	2022-02-05 10:41:26

Solution running time distribution