Problem A
Hard Drive — Problem Statistics

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Submissions	1656
Accepted submissions	580
Submission ratio	35.02%
Authors	547
Full solves [?]	483
Full solve Ratio	88.30%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.01 s	C	2018-12-06 09:06:53
2	Sven Rönnbäck	0.01 s	C	2025-04-04 19:44:48
3	Pim Heeman	0.02 s	C	2019-06-11 18:57:15
4	Hidden user	0.04 s	C	2019-11-07 17:39:08
5	Sambit Palit	0.05 s	C	2020-11-18 06:34:18
6	Ivan Petrov	0.06 s	C	2019-04-02 10:26:20
7	Nihat Altiparmak	0.06 s	C	2019-10-01 20:06:05
8	Gregor Behnke	0.08 s	C	2023-01-20 11:58:24

#	User	Runtime	Language	Date
1	Tomas Vainoris	0.18 s	C#	2023-07-31 15:04:52
2	Raul Kooter	0.23 s	C#	2018-11-25 11:37:15
3	Jacob Aufdenberg	0.76 s	C#	2019-05-17 17:34:50

#	User	Runtime	Language	Date
1	Wesley Leung	0.01 s	C++	2018-11-25 11:42:37
2	Yehezkiel Raymundo Theodoroes	0.01 s	C++	2019-01-10 08:11:22
3	Jay Lim	0.01 s	C++	2019-02-03 01:55:37
4	林圣钬	0.01 s	C++	2019-07-24 12:31:08
5	XTXTMTXTX	0.01 s	C++	2019-07-25 08:33:26
6	Frank Endriss	0.01 s	C++	2020-01-05 13:46:01
7	Eric Way	0.01 s	C++	2021-11-16 12:18:48
8	sc l	0.02 s	C++	2025-10-26 12:38:50
9	Nick Wu	0.04 s	C++	2018-11-25 10:36:21
10	Michael Baer	0.04 s	C++	2018-11-25 11:07:32

#	User	Runtime	Language	Date
1	Norbert Voelker	0.10 s	Go	2021-12-28 22:07:23

#	User	Runtime	Language	Date
1	Matthew Craven	0.48 s	Haskell	2019-10-20 19:22:24
2	Rudy Matela	0.68 s	Haskell	2024-11-16 19:02:31

#	User	Runtime	Language	Date
1	Bjørn Dons	0.11 s	Java	2018-11-26 07:16:54
2	Santiago Gutierrez Alzate	0.11 s	Java	2018-12-08 18:38:49
3	Duane Littleton	0.17 s	Java	2020-01-28 18:30:08
4	Samuel Klingström	0.17 s	Java	2020-05-22 22:35:40
5	Hidden user	0.23 s	Java	2018-11-26 23:26:36
6	Olav Røthe Bakken	0.24 s	Java	2018-11-25 10:50:24
7	Brent Yorgey	0.24 s	Java	2018-11-27 12:39:03
8	Pontus Eriksson	0.24 s	Java	2018-11-27 20:04:50
9	Jacob Magnuson	0.25 s	Java	2019-03-24 07:12:52
10	Erik Baalhuis	0.28 s	Java	2018-11-25 15:27:30

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.19 s	JavaScript (SpiderMonkey)	2023-11-13 20:53:00

#	User	Runtime	Language	Date
1	Timothy Gaede	2.73 s	Julia	2025-10-16 08:18:37

#	User	Runtime	Language	Date
1	Adam Rankin	0.65 s	Kotlin	2023-09-29 04:50:53

#	User	Runtime	Language	Date
1	Arnav Sastry	0.10 s	Python 2	2018-11-25 15:13:15
2	Mohamedreda Glioula	0.10 s	Python 2	2019-02-15 22:59:12
3	Jorke de Vlas	0.11 s	Python 2	2018-11-28 00:15:42
4	Maj Stenmark	0.13 s	Python 2	2018-11-25 12:59:51
5	Lars Åström	0.13 s	Python 2	2018-11-26 08:45:03
6	Eoin Davey	0.14 s	Python 2	2019-02-24 18:12:07
7	Yanmarshus Bachtiar	0.14 s	Python 2	2020-09-15 09:50:14
8	Øyvind Haarberg	0.15 s	Python 2	2018-11-25 19:30:06
9	Oskar Haarklou Veileborg	0.15 s	Python 2	2018-11-26 10:25:55
10	Matias Frank Jensen	0.15 s	Python 2	2018-11-26 10:34:38

#	User	Runtime	Language	Date
1	Maj Stenmark	0.13 s	Python 3	2022-10-27 18:46:05
2	August Danell Håkansson	0.14 s	Python 3	2020-07-20 12:07:37
3	Teodor Bucht	0.14 s	Python 3	2022-10-17 16:48:11
4	David Engström	0.14 s	Python 3	2022-10-27 18:00:12
5	金宸炜	0.15 s	Python 3	2021-03-13 12:37:36
6	Ruth Risberg	0.15 s	Python 3	2021-11-14 12:11:02
7	Erik Amirell Eklöf	0.15 s	Python 3	2022-10-27 18:22:04
8	Nicholas Russell Saerang	0.15 s	Python 3	2022-11-26 01:11:29
9	Benjamin Z White	0.15 s	Python 3	2023-05-26 17:19:57
10	einar bratthall	0.15 s	Python 3	2023-11-21 18:19:41

#	User	Runtime	Language	Date
1	Hidden user	0.29 s	Ruby	2019-10-31 15:58:38
2	Miorel Palii	0.49 s	Ruby	2022-03-24 10:26:37

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2024-09-01 17:29:16
2	Adam Gausmann	0.10 s	Rust	2018-12-12 03:21:50

#	User	Runtime	Language	Date
1	Hidden user	0.30 s	Swift	2023-10-05 12:04:15

#	User	Length	Language	Date
1	Gregor Behnke	660	C	2023-01-20 11:58:24
2	Pim Heeman	823	C	2019-06-11 18:57:45
3	Ivan Petrov	858	C	2019-04-02 10:26:20
4	Sven Rönnbäck	914	C	2025-04-04 19:48:50
5	Hidden user	1134	C	2019-11-07 17:39:08
6	Sambit Palit	1214	C	2020-11-18 06:34:18
7	Nihat Altiparmak	2114	C	2019-10-01 20:06:05
8	Bergur Snorrason	5049	C	2018-12-06 09:06:53

#	User	Length	Language	Date
1	Raul Kooter	1169	C#	2018-11-25 11:37:15
2	Tomas Vainoris	2083	C#	2023-07-31 15:04:52
3	Jacob Aufdenberg	2390	C#	2019-05-17 17:34:50

#	User	Length	Language	Date
1	a_b__c	354	C++	2021-02-27 19:25:21
2	SiBi	366	C++	2019-03-31 07:03:07
3	Elias Lolck	406	C++	2023-11-21 22:21:13
4	Teikn Smith	411	C++	2024-05-06 15:51:14
5	Taulant Arapi	413	C++	2019-10-18 15:47:52
6	Julian Brost	419	C++	2018-11-25 10:53:01
7	Nathan Maier	429	C++	2018-12-13 03:54:10
8	Hidden user	430	C++	2018-11-25 11:17:18
9	Emmanuel Anaya	462	C++	2019-05-03 18:01:28
10	Omar Muhammetkulyyev	465	C++	2019-10-20 21:49:40

#	User	Length	Language	Date
1	Norbert Voelker	1072	Go	2021-12-28 21:55:12

#	User	Length	Language	Date
1	Matthew Craven	670	Haskell	2019-10-20 19:22:24
2	Rudy Matela	1706	Haskell	2024-11-16 19:02:31

#	User	Length	Language	Date
1	Natalie Longtin	544	Java	2019-03-24 17:12:48
2	Philipp R	609	Java	2019-04-24 18:39:20
3	Matej Papik	633	Java	2018-11-25 11:31:18
4	Xingheng Lin	704	Java	2019-10-20 20:55:03
5	Yuki Tareyanagi	724	Java	2019-09-18 03:02:29
6	Zhicheng Kai	734	Java	2019-11-17 05:12:48
7	Chronic Avidness	746	Java	2019-10-20 19:52:18
8	Kamil Cierpisz	752	Java	2018-11-30 03:50:12
9	Hidden user	872	Java	2018-11-26 23:26:36
10	Brendon Zhang	906	Java	2018-11-28 02:04:56

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	1048	JavaScript (SpiderMonkey)	2023-11-13 20:53:00

#	User	Length	Language	Date
1	Timothy Gaede	2004	Julia	2025-10-16 08:18:37

#	User	Length	Language	Date
1	Adam Rankin	721	Kotlin	2023-09-29 04:50:53

#	User	Length	Language	Date
1	Dilawar Mahmood	250	Python 2	2018-12-24 14:54:47
2	Jorke de Vlas	251	Python 2	2018-11-28 00:15:42
3	Johan Lyts	347	Python 2	2020-02-23 22:05:56
4	Lars Åström	371	Python 2	2018-11-26 08:45:03
5	Andreas Björklund	383	Python 2	2018-11-28 07:21:04
6	Ethan Arnold	390	Python 2	2018-12-02 01:46:57
7	Asger Hautop Drewsen	393	Python 2	2018-11-26 10:30:45
8	Oskar Haarklou Veileborg	408	Python 2	2018-11-26 10:25:55
9	Thomas Feld	434	Python 2	2019-10-23 09:08:56
10	Björn Magnusson	439	Python 2	2019-06-10 11:05:56

#	User	Length	Language	Date
1	Benjamin Z White	154	Python 3	2023-05-26 17:59:33
2	Ahmed Chamseddine	237	Python 3	2024-12-18 14:08:49
3	Lennart Meyling	241	Python 3	2022-12-06 13:03:45
4	Artur Khuziakhmetov	267	Python 3	2022-07-17 19:24:14
5	Ragur Krishnan	274	Python 3	2019-03-02 17:47:19
6	Gerth Stølting Brodal	292	Python 3	2018-11-27 20:03:25
7	Jarrod Pas	303	Python 3	2019-03-01 23:43:57
8	Josenildo Silva	306	Python 3	2019-09-29 20:28:04
9	Troels Bjerre Lund	306	Python 3	2021-03-29 13:00:45
10	Nicholas Russell Saerang	315	Python 3	2022-11-26 01:18:07

#	User	Length	Language	Date
1	Miorel Palii	328	Ruby	2022-03-24 10:26:37
2	Hidden user	459	Ruby	2019-10-31 15:58:38

#	User	Length	Language	Date
1	Adam Gausmann	1461	Rust	2018-12-12 03:21:50
2	Vincent Lagerros	16065	Rust	2024-09-01 17:29:16

#	User	Length	Language	Date
1	Hidden user	625	Swift	2023-10-05 12:04:15

Solution running time distribution