Problem A
Artwork — Problem Statistics

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Submissions	1842
Accepted submissions	641
Submission ratio	34.80%
Authors	607
Full solves [?]	433
Full solve Ratio	71.33%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.06 s	C	2019-05-27 16:40:50
2	Hidden user	0.07 s	C	2024-10-31 17:45:15
3	Ryan Yates	0.08 s	C	2019-05-17 23:15:05
4	Andreas Björklund	0.09 s	C	2018-12-01 18:46:46
5	李臻	0.36 s	C	2016-10-25 04:14:25

#	User	Runtime	Language	Date
1	Jakob Botsch Nielsen	0.28 s	C#	2016-10-10 20:48:05

#	User	Runtime	Language	Date
1	Mathias Gernez	0.02 s	C++	2023-05-07 14:43:54
2	Ludo Pulles	0.06 s	C++	2016-11-16 21:57:00
3	Ashley Khoo	0.06 s	C++	2018-11-11 00:08:02
4	Maximilliano Utomo Quok	0.06 s	C++	2023-03-12 20:20:23
5	Lim Li	0.07 s	C++	2016-12-03 10:55:33
6	Hidden user	0.07 s	C++	2017-03-05 13:29:44
7	Chris Blue	0.07 s	C++	2017-10-03 12:26:12
8	Andy Zy	0.07 s	C++	2017-10-03 15:17:14
9	Shahadat Hossain	0.07 s	C++	2017-10-21 19:55:52
10	Hidden user	0.07 s	C++	2018-11-10 17:02:52

#	User	Runtime	Language	Date
1	José Vander Meulen	0.29 s	Java	2018-10-23 10:17:37
2	Bjørn Dons	0.43 s	Java	2019-05-05 21:55:22
3	William Brigham	0.45 s	Java	2018-04-21 23:53:35
4	Samuel Klingström	0.46 s	Java	2017-07-03 17:15:40
5	Nick Wu	0.51 s	Java	2016-10-12 23:42:17
6	Javier Ojeda	0.60 s	Java	2018-05-05 02:28:27
7	Ismaila Abdoulahi	0.62 s	Java	2018-10-23 19:36:30
8	Castel Christopher	0.63 s	Java	2018-10-11 18:11:15
9	Jérôme Deb	0.64 s	Java	2018-11-17 10:47:10
10	Jonas Hedin	0.65 s	Java	2016-10-23 16:46:35

#	User	Runtime	Language	Date
1	Christopher Walther	0.94 s	JavaScript (SpiderMonkey)	2021-04-18 17:29:42

#	User	Runtime	Language	Date
1	BLEE BLAH	1.08 s	Kotlin	2024-12-04 17:50:35
2	Jun Kim	1.17 s	Kotlin	2024-11-29 23:14:04

#	User	Runtime	Language	Date
1	Matias Frank Jensen	0.69 s	Python 2	2019-10-06 20:51:06
2	Maj Stenmark	0.82 s	Python 2	2018-08-03 10:22:09
3	Thore Husfeldt	0.86 s	Python 2	2019-09-15 11:17:34
4	Frederik Højholt	1.00 s	Python 2	2016-10-29 20:35:12
5	Lars Åström	2.66 s	Python 2	2018-10-03 19:26:16

#	User	Runtime	Language	Date
1	Gage Mariano	0.64 s	Python 3	2024-04-16 09:34:11
2	Ryuki Kobayashi	0.69 s	Python 3	2021-03-03 07:43:59
3	Harry Zhang	0.74 s	Python 3	2023-10-21 18:54:11
4	Ole Vik Lysne	0.74 s	Python 3	2025-06-13 15:46:09
5	Mohammad Taimoor	0.75 s	Python 3	2025-01-01 10:04:12
6	Nicholas Russell Saerang	0.78 s	Python 3	2024-06-19 20:22:56
7	Simen Sørensen	0.80 s	Python 3	2025-06-13 13:25:24
8	Simon Voglimacci Stéphanopoli	0.82 s	Python 3	2025-05-25 16:53:42
9	Dongwei Qi	0.84 s	Python 3	2021-03-04 02:57:52
10	Hilde Jordal	0.84 s	Python 3	2024-02-27 13:30:30

#	User	Runtime	Language	Date
1	Mathieu Lambert	0.11 s	Rust	2025-05-23 20:18:17
2	Nicholas Bachmann Tjørnelund	0.18 s	Rust	2020-07-25 17:09:54
3	Gustav Valentin Yde	0.20 s	Rust	2020-07-16 15:33:33
4	Klas af Geijerstam	0.26 s	Rust	2020-10-26 10:06:33
5	Niklas Sandén	0.32 s	Rust	2022-10-06 21:50:23
6	Frank Endriss	0.38 s	Rust	2024-11-04 14:05:13
7	Hidden user	0.88 s	Rust	2025-06-06 21:33:24

#	User	Length	Language	Date
1	Andreas Björklund	1830	C	2018-12-01 18:46:46
2	Ivan Petrov	1962	C	2019-05-27 16:40:50
3	Ryan Yates	3540	C	2019-05-17 23:15:05
4	李臻	3626	C	2016-10-25 04:14:25
5	Hidden user	3752	C	2024-10-31 17:45:15

#	User	Length	Language	Date
1	Jakob Botsch Nielsen	6179	C#	2016-10-10 20:48:05

#	User	Length	Language	Date
1	Tuukka Korhonen	1265	C++	2022-02-10 22:04:47
2	Hidden user	1420	C++	2017-03-07 12:28:09
3	Simone Moretti	1443	C++	2021-11-20 17:00:41
4	Hidden user	1542	C++	2019-10-07 11:55:22
5	Gerth Stølting Brodal	1551	C++	2016-10-11 23:20:40
6	Hidden user	1585	C++	2018-11-10 17:02:52
7	William Gan	1598	C++	2018-07-14 15:42:05
8	Ian DeHaan	1633	C++	2023-11-08 15:10:31
9	Sanket D	1704	C++	2022-04-14 05:29:53
10	Maximilliano Utomo Quok	1706	C++	2023-03-12 20:20:23

#	User	Length	Language	Date
1	Duncan Page	3113	Java	2018-01-30 01:05:07
2	Hidden user	3484	Java	2017-02-12 14:03:39
3	Yuxiang Zhang	3484	Java	2017-04-19 22:52:36
4	Julia Tönnies	3606	Java	2018-08-24 17:10:52
5	Arup Ratan Guha	3612	Java	2016-10-24 11:48:13
6	Nick Wu	3629	Java	2016-10-12 23:42:17
7	John Kevin Tjahjadi	3629	Java	2018-04-06 12:47:20
8	Andy Phan	3709	Java	2019-05-15 03:13:42
9	Jiru Xu	3824	Java	2016-10-24 10:29:34
10	Derek Goodwin	3832	Java	2016-10-23 17:44:14

#	User	Length	Language	Date
1	Christopher Walther	10440	JavaScript (SpiderMonkey)	2021-04-18 17:29:42

#	User	Length	Language	Date
1	Jun Kim	2404	Kotlin	2024-11-29 23:14:04
2	BLEE BLAH	2404	Kotlin	2024-12-04 17:50:35

#	User	Length	Language	Date
1	Thore Husfeldt	1429	Python 2	2019-09-15 11:17:34
2	Frederik Højholt	1699	Python 2	2016-10-29 20:35:12
3	Maj Stenmark	2058	Python 2	2018-08-03 10:22:09
4	Lars Åström	2453	Python 2	2018-10-03 19:26:16
5	Matias Frank Jensen	2728	Python 2	2019-10-06 20:51:06

#	User	Length	Language	Date
1	Kelly Dance	1143	Python 3	2024-07-21 09:32:13
2	Nicholas Russell Saerang	1398	Python 3	2024-06-19 20:22:56
3	Mohammad Taimoor	1398	Python 3	2025-01-01 10:04:12
4	alexandre dewilde	1808	Python 3	2023-08-01 21:11:06
5	Doug Goodman	1824	Python 3	2023-08-04 23:30:14
6	Simen Sørensen	1910	Python 3	2025-06-13 13:25:24
7	Sami Melhem	2084	Python 3	2025-04-04 23:23:50
8	Gage Mariano	2093	Python 3	2024-04-16 09:34:11
9	Xiangqi Jiang	2102	Python 3	2021-03-06 05:35:32
10	Hidden user	2118	Python 3	2020-09-04 20:48:47

#	User	Length	Language	Date
1	Mathieu Lambert	3157	Rust	2025-05-23 20:18:17
2	Nicholas Bachmann Tjørnelund	3748	Rust	2020-07-25 17:09:54
3	Gustav Valentin Yde	3893	Rust	2020-07-25 22:35:43
4	Klas af Geijerstam	9894	Rust	2020-10-26 10:06:33
5	Frank Endriss	11313	Rust	2024-11-04 13:58:26
6	Hidden user	15871	Rust	2025-06-06 21:33:24
7	Niklas Sandén	23911	Rust	2022-10-06 21:50:23

Solution running time distribution