Problem A
Ignore the Garbage — Problem Statistics

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Submissions	2939
Accepted submissions	1130
Submission ratio	38.45%
Authors	815
Full solves [?]	700
Full solve Ratio	85.89%

#	User	Runtime	Language	Date
1	Oskar Arensmeier	0.08 s	Bash	2025-02-27 21:44:29

#	User	Runtime	Language	Date
1	Duelene Olson	0.03 s	C#	2016-07-05 20:26:40
2	Khin Nyunt	0.03 s	C#	2017-09-13 06:27:25
3	Mikael Fiala-Lundström	0.03 s	C#	2022-04-25 21:50:51
4	traxex	0.06 s	C#	2024-05-27 10:33:33

#	User	Runtime	Language	Date
1	Mohideen Imran Khan	0.03 s	Common Lisp	2018-12-23 05:55:10

#	User	Runtime	Language	Date
1	Khin Nyunt	0.02 s	Go	2023-09-14 05:19:10
2	Chris Vilches	0.03 s	Go	2024-08-22 18:48:53
3	brett warrender	0.05 s	Go	2020-08-26 07:32:49
4	Norbert Voelker	0.08 s	Go	2021-11-11 00:10:24
5	Vilhelm Melkstam	0.08 s	Go	2022-02-08 12:12:30
6	Andrew Burke	0.10 s	Go	2022-03-21 01:55:12

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2025-01-31 14:48:05
2	Oskar Segersvärd	0.01 s	Haskell	2014-09-20 15:34:04
3	Esther Chong	0.01 s	Haskell	2018-01-23 13:36:22
4	Qi Ji	0.01 s	Haskell	2018-07-10 04:10:38
5	Antony Lee	0.01 s	Haskell	2018-08-25 01:21:14
6	Matthew Craven	0.01 s	Haskell	2018-09-08 14:50:55
7	Olle Eriksson	0.01 s	Haskell	2018-09-16 22:31:22
8	Brent Yorgey	0.01 s	Haskell	2018-12-14 03:51:12
9	Oisín Mac Fhearaí	0.01 s	Haskell	2021-01-04 02:54:51
10	Mason Barnhill	0.01 s	Haskell	2023-05-11 21:48:40

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.04 s	Java	2025-03-22 07:46:30
2	Simon Klein	0.06 s	Java	2013-04-11 11:06:18
3	Carl Eriksson	0.06 s	Java	2014-09-21 23:39:51
4	Paul Boddington	0.06 s	Java	2016-05-07 00:22:24
5	Taras Romanyuk	0.06 s	Java	2024-08-04 23:24:36
6	Rene Argento	0.06 s	Java	2025-02-04 02:10:40
7	Hanif Farahmand Mokarremi	0.07 s	Java	2011-11-15 15:03:48
8	Erik Odenman	0.07 s	Java	2013-04-13 15:01:44
9	Jens Ståhl	0.07 s	Java	2014-04-02 13:19:09
10	Kai Widell Niigata	0.07 s	Java	2014-04-04 14:06:36

#	User	Runtime	Language	Date
1	Tiago Oliveira	0.45 s	JavaScript (Node.js)	2020-08-19 16:03:25
2	Khin Nyunt	0.45 s	JavaScript (Node.js)	2021-11-18 10:02:14

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-02-28 08:27:19
2	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-04-06 19:39:29
3	Bjørn Chr. Soltvedt	0.21 s	JavaScript (SpiderMonkey)	2016-03-16 01:18:35

#	User	Runtime	Language	Date
1	Timothy Gaede	0.55 s	Julia	2024-05-27 05:32:01

#	User	Runtime	Language	Date
1	Hidden user	0.20 s	Kotlin	2019-12-22 07:00:57
2	Juan Miguel Vilar	0.28 s	Kotlin	2020-11-07 16:01:58
3	Adam Koprowski	0.28 s	Kotlin	2021-07-13 23:08:52
4	Alexandre Conte	0.30 s	Kotlin	2021-08-26 19:50:20

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-09-30 21:28:47

#	User	Runtime	Language	Date
1	Victor Santos	0.02 s	PHP	2025-01-29 14:54:44

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.04 s	Prolog	2019-04-27 12:12:22

#	User	Runtime	Language	Date
1	Anders Westling	0.03 s	Python 2	2011-11-15 16:37:14
2	Andreas Serra	0.03 s	Python 2	2014-04-02 17:33:44
3	Hidden user	0.03 s	Python 2	2014-09-17 22:12:04
4	Joakim Uddholm	0.03 s	Python 2	2014-09-22 02:38:55
5	Paulo Bu	0.03 s	Python 2	2015-03-26 13:45:40
6	Quan Huynh	0.03 s	Python 2	2015-09-21 10:38:56
7	Dmitry Lyubshin	0.03 s	Python 2	2018-05-09 23:03:13
8	Hidden user	0.04 s	Python 2	2015-04-07 19:31:08
9	Team Baud	0.04 s	Python 2	2015-04-16 09:31:04
10	Christofer Ohlsson	0.04 s	Python 2	2015-05-11 11:19:32

#	User	Runtime	Language	Date
1	Axel Lewenhaupt	0.02 s	Python 3	2013-04-17 11:17:58
2	Mattis Kancans Envall	0.02 s	Python 3	2014-09-18 11:39:47
3	Mikael Florén	0.02 s	Python 3	2014-09-20 17:25:11
4	Markus Videll	0.02 s	Python 3	2015-09-27 03:43:00
5	Nathan Collins	0.02 s	Python 3	2016-07-05 15:40:27
6	Nicolas Marsceau	0.02 s	Python 3	2016-07-05 20:50:23
7	Linus Eklund	0.02 s	Python 3	2016-08-04 13:47:20
8	Brian Bauman	0.02 s	Python 3	2016-09-17 03:13:49
9	Josenildo Silva	0.02 s	Python 3	2016-11-15 04:18:23
10	Óðinn Eyjólfsson	0.02 s	Python 3	2017-03-09 13:20:20

#	User	Runtime	Language	Date
1	Miorel Palii	0.04 s	Ruby	2017-11-26 02:46:58
2	Hidden user	0.05 s	Ruby	2020-10-02 21:39:29
3	Thomas Feld	0.06 s	Ruby	2023-01-04 16:29:42
4	Oskar Arensmeier	0.07 s	Ruby	2025-02-06 15:41:07

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-03-30 20:27:21
2	David Rasch	0.00 s	Rust	2022-10-31 11:36:53
3	Daniel Anker Hermansen	0.00 s	Rust	2023-08-26 12:19:50
4	Viktor Bergström	0.00 s	Rust	2024-02-09 00:42:20
5	Leo Jarhede	0.00 s	Rust	2025-02-11 09:19:00
6	Chris Seager	0.00 s	Rust	2025-03-27 01:24:36

#	User	Length	Language	Date
1	Oskar Arensmeier	123	Bash	2025-02-27 21:46:48

#	User	Length	Language	Date
1	Jonas Höglund	237	C	2015-09-23 15:23:51
2	Andrew Roberts	253	C	2017-08-25 07:50:38
3	Christopher Teljstedt	270	C	2014-09-20 00:31:24
4	Lingwei Kong	280	C	2014-10-23 16:35:31
5	Magnus Olsson	381	C	2014-09-19 19:16:21
6	Marcus Larsson	391	C	2013-04-16 19:14:09
7	Hidden user	432	C	2025-03-22 13:23:55
8	Viktor Collin	437	C	2013-04-17 14:49:20
9	Linus Wallgren	438	C	2010-11-25 12:27:48
10	Sambit Palit	555	C	2020-12-01 03:33:47

#	User	Length	Language	Date
1	traxex	194	C#	2024-05-27 10:33:33
2	Khin Nyunt	963	C#	2017-09-13 06:27:25
3	Duelene Olson	1249	C#	2016-07-05 20:26:40
4	Mikael Fiala-Lundström	1454	C#	2022-04-25 21:50:51

#	User	Length	Language	Date
1	Philip Sköld	109	C++	2014-04-07 15:05:31
2	Henrik Adolfsson	127	C++	2016-02-05 13:59:25
3	Austin Fernandez	194	C++	2019-08-31 14:10:37
4	Fredrik Lilkaer	195	C++	2013-04-17 17:39:25
5	Gunnar Engström	197	C++	2023-02-07 09:42:51
6	Yeung Man Tsung	201	C++	2022-11-27 14:35:01
7	人外沙耶	203	C++	2021-08-09 21:05:27
8	Emil Lenngren	206	C++	2013-04-17 01:30:17
9	William Gan	227	C++	2018-02-09 15:38:32
10	Zac Friggstad	230	C++	2021-06-28 21:08:41

#	User	Length	Language	Date
1	Mohideen Imran Khan	473	Common Lisp	2018-12-23 05:55:10

#	User	Length	Language	Date
1	Chris Vilches	237	Go	2024-08-22 19:12:23
2	brett warrender	562	Go	2020-08-26 07:32:49
3	Khin Nyunt	627	Go	2023-09-14 05:19:10
4	Andrew Burke	743	Go	2022-03-21 01:55:12
5	Norbert Voelker	855	Go	2021-11-11 00:10:24
6	Vilhelm Melkstam	1359	Go	2022-02-08 12:12:30

#	User	Length	Language	Date
1	Oisín Mac Fhearaí	186	Haskell	2021-01-04 02:54:51
2	Antony Lee	226	Haskell	2018-08-25 01:21:14
3	Oskar Segersvärd	319	Haskell	2014-09-20 15:37:45
4	Qi Ji	321	Haskell	2018-07-10 04:10:38
5	Olle Eriksson	360	Haskell	2018-09-16 22:31:22
6	Mason Barnhill	418	Haskell	2023-05-11 21:48:40
7	Esther Chong	446	Haskell	2018-01-23 13:36:22
8	Brent Yorgey	451	Haskell	2018-12-14 03:51:12
9	Matthew Craven	468	Haskell	2018-09-08 14:50:55
10	Steinar Simonnes	690	Haskell	2025-01-31 14:50:42

#	User	Length	Language	Date
1	Doug Goodman	346	Java	2018-01-02 23:45:30
2	John Roush	493	Java	2016-09-16 21:20:04
3	Jenner Wile	504	Java	2016-02-22 21:53:35
4	Dave Poplawski	519	Java	2016-10-11 17:03:05
5	Lance Chao	520	Java	2016-09-27 04:54:53
6	Christopher Teljstedt	529	Java	2014-09-20 00:47:19
7	Zimu Qin	533	Java	2015-07-19 18:12:56
8	Edward Bachan	541	Java	2016-05-15 23:39:52
9	Jan Štola	555	Java	2015-05-27 22:40:17
10	David Rincon-Cruz	577	Java	2017-06-26 08:51:34

#	User	Length	Language	Date
1	Tiago Oliveira	635	JavaScript (Node.js)	2020-08-19 16:03:25
2	Khin Nyunt	936	JavaScript (Node.js)	2021-11-18 10:02:14

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	134	JavaScript (SpiderMonkey)	2023-04-06 19:39:29
2	Peter Kedemo	315	JavaScript (SpiderMonkey)	2016-02-28 08:27:19
3	Bjørn Chr. Soltvedt	100259	JavaScript (SpiderMonkey)	2016-03-16 01:18:35

#	User	Length	Language	Date
1	Timothy Gaede	385	Julia	2024-05-27 05:32:01

#	User	Length	Language	Date
1	Juan Miguel Vilar	340	Kotlin	2020-11-07 16:01:58
2	Adam Koprowski	391	Kotlin	2021-07-13 23:08:52
3	Alexandre Conte	393	Kotlin	2021-08-26 19:50:20
4	Hidden user	1028	Kotlin	2019-12-22 07:00:57

#	User	Length	Language	Date
1	Ingemar Ragnemalm	335	Pascal	2019-09-30 21:28:47

#	User	Length	Language	Date
1	Victor Santos	1305	PHP	2025-01-29 14:54:44

#	User	Length	Language	Date
1	Andriy Zyevakov	1422	Prolog	2019-04-27 12:12:22

#	User	Length	Language	Date
1	Thomas Feld	137	Python 2	2019-12-09 11:14:10
2	Dmitry Lyubshin	151	Python 2	2018-05-09 23:03:13
3	Paulo Bu	164	Python 2	2015-03-26 13:45:40
4	Quan Huynh	171	Python 2	2015-09-21 10:38:56
5	Lars Åström	189	Python 2	2019-06-02 01:13:38
6	Anders Westling	199	Python 2	2011-11-15 16:37:14
7	Vaibhav Tulsyan	218	Python 2	2016-10-19 20:13:39
8	Daniel Strizhevsky	247	Python 2	2017-06-26 08:20:28
9	Hermon Mulat	247	Python 2	2018-12-23 22:18:01
10	Ethan Arnold	249	Python 2	2017-08-24 22:16:44

#	User	Length	Language	Date
1	Clement Oh	75	Python 3	2023-07-23 16:18:09
2	Filip Edberger	75	Python 3	2025-02-06 15:54:14
3	Anton Nilsson	75	Python 3	2025-04-01 18:19:10
4	Oskar Arensmeier	76	Python 3	2025-02-06 14:44:39
5	Morgan Nordberg	80	Python 3	2025-04-01 17:13:33
6	Gustav Elmqvist	88	Python 3	2023-02-01 15:32:06
7	Tianyu Zhang	88	Python 3	2025-01-21 04:23:04
8	Lee Isaac	97	Python 3	2022-11-09 19:57:04
9	Charles Ancheta	103	Python 3	2023-04-15 04:33:42
10	Andreas Björklund	109	Python 3	2023-02-27 17:59:53

#	User	Length	Language	Date
1	Thomas Feld	51	Ruby	2023-01-04 16:31:43
2	Oskar Arensmeier	62	Ruby	2025-02-06 15:41:07
3	Hidden user	65	Ruby	2020-10-02 21:41:03
4	Miorel Palii	139	Ruby	2017-11-26 02:46:58

#	User	Length	Language	Date
1	Chris Seager	655	Rust	2025-03-27 01:24:36
2	David Rasch	659	Rust	2022-10-31 11:42:19
3	Leo Jarhede	739	Rust	2025-02-11 09:19:00
4	Bas Dirks	898	Rust	2022-03-30 20:27:21
5	Viktor Bergström	1233	Rust	2024-02-09 00:42:20
6	Daniel Anker Hermansen	27951	Rust	2023-08-26 12:19:50

Solution running time distribution