Problem A
H to O — Problem Statistics

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Submissions	1636
Accepted submissions	690
Submission ratio	42.18%
Authors	664
Full solves [?]	600
Full solve Ratio	90.36%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2019-01-17 11:12:31
2	Andrew Roberts	0.00 s	C	2021-06-01 20:21:54
3	Hidden user	0.00 s	C	2024-08-15 19:13:50
4	Mikael K Eriksson	0.02 s	C	2021-06-05 21:30:12

#	User	Runtime	Language	Date
1	Tom Ilestrand	0.02 s	C#	2019-04-09 10:35:18
2	Gurpartap Singh Bhatti	0.02 s	C#	2020-04-19 20:42:19
3	Henning Odén	0.03 s	C#	2019-11-07 15:12:06
4	Mikael Fiala-Lundström	0.03 s	C#	2021-11-26 18:30:25
5	Dima A	0.04 s	C#	2024-04-16 09:06:30

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.08 s	F#	2023-02-20 18:39:09

#	User	Runtime	Language	Date
1	Leni Mayer	0.00 s	Go	2025-03-16 14:43:47
2	Silas Ulander	0.02 s	Go	2022-12-16 14:52:27
3	Wei Guo	0.02 s	Go	2023-01-11 14:48:33
4	Norbert Voelker	0.08 s	Go	2021-07-28 18:39:17

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2024-08-31 15:26:05
2	Brent Yorgey	0.01 s	Haskell	2018-12-27 14:18:37
3	Nazarii Bardiuk	0.01 s	Haskell	2018-12-29 20:14:32
4	Tomas Möre	0.01 s	Haskell	2019-05-19 12:18:16
5	Hidden user	0.01 s	Haskell	2019-10-27 12:58:07
6	Gaston Gilbert	0.01 s	Haskell	2020-10-28 02:03:15
7	Jan Hrček	0.01 s	Haskell	2021-03-12 13:30:11
8	Mason Barnhill	0.01 s	Haskell	2023-06-21 07:00:16

#	User	Runtime	Language	Date
1	Liam Keliher	0.06 s	Java	2020-06-02 03:06:30
2	Hidden user	0.06 s	Java	2020-06-06 19:18:54
3	Joakim Olsson	0.06 s	Java	2020-06-08 16:26:16
4	Sven Rönnbäck	0.06 s	Java	2023-06-25 12:50:35
5	Mohamed Ali Rachid	0.07 s	Java	2020-12-12 02:08:45
6	Lars Corbijn	0.07 s	Java	2021-10-31 15:07:57
7	Rene Argento	0.07 s	Java	2022-04-04 00:38:21
8	Jacob Olinger	0.07 s	Java	2022-05-25 15:26:07
9	Ranjith M	0.07 s	Java	2023-07-22 00:54:30
10	Stela Palii	0.08 s	Java	2022-02-13 20:08:15

#	User	Runtime	Language	Date
1	Peter Kedemo	0.42 s	JavaScript (Node.js)	2019-12-28 11:18:38
2	Emil Clemedson	0.42 s	JavaScript (Node.js)	2021-08-23 09:13:21

#	User	Runtime	Language	Date
1	Simon Titkó	0.02 s	JavaScript (SpiderMonkey)	2023-12-04 21:49:39
2	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2019-01-03 03:26:23
3	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-05-24 11:47:18

#	User	Runtime	Language	Date
1	Timothy Gaede	0.66 s	Julia	2024-06-18 15:01:37

#	User	Runtime	Language	Date
1	Adam Rankin	0.19 s	Kotlin	2023-09-15 22:54:14
2	Neil Harmon	0.20 s	Kotlin	2019-07-24 11:32:11
3	Matthew Lutze	0.22 s	Kotlin	2019-09-23 07:34:37
4	Ola Sundell	0.26 s	Kotlin	2019-11-11 15:42:42
5	Hidden user	0.30 s	Kotlin	2019-11-04 12:15:20

#	User	Runtime	Language	Date
1	Johann Ly	0.03 s	Python 2	2019-01-07 02:11:33
2	Catalin Popa	0.03 s	Python 2	2019-01-11 17:21:11
3	Måns Magnusson	0.03 s	Python 2	2019-05-12 13:18:30
4	Lars Åström	0.03 s	Python 2	2019-05-19 11:59:00
5	Andreas Björklund	0.03 s	Python 2	2019-05-21 21:47:20
6	Johan Lyts	0.03 s	Python 2	2019-06-13 13:28:42
7	Thomas Feld	0.03 s	Python 2	2019-09-12 16:13:53
8	Jonatan Nilsson	0.04 s	Python 2	2019-05-19 12:15:13
9	Erik Leffler	0.04 s	Python 2	2019-05-19 12:44:21
10	David Nilsson	0.04 s	Python 2	2019-07-27 08:26:35

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.02 s	Python 3	2018-12-27 15:03:09
2	Dilawar Mahmood	0.02 s	Python 3	2019-01-01 15:53:46
3	Herbert Ilhan Tanujaya	0.02 s	Python 3	2019-01-01 17:14:10
4	Vincent Tandya	0.02 s	Python 3	2019-01-02 10:10:03
5	Andrew McGehee	0.02 s	Python 3	2019-02-22 05:36:32
6	Lester Muñoz	0.02 s	Python 3	2019-02-27 23:26:22
7	Tamara Pogačar	0.02 s	Python 3	2019-05-05 23:49:27
8	Nicole Hedblom	0.02 s	Python 3	2019-05-19 11:53:06
9	Kristoffer Åhgren	0.02 s	Python 3	2019-05-19 11:56:54
10	Ivar Källström	0.02 s	Python 3	2019-05-19 12:18:00

#	User	Runtime	Language	Date
1	Jonathan L	0.00 s	Rust	2019-05-19 11:44:12
2	Bas Dirks	0.00 s	Rust	2022-01-19 17:29:11
3	Vincent Lagerros	0.00 s	Rust	2025-06-13 00:29:08

#	User	Length	Language	Date
1	Hidden user	949	C	2024-08-15 19:13:50
2	Andrew Roberts	1393	C	2021-06-01 20:21:54
3	Mikael K Eriksson	1442	C	2021-06-05 21:30:12
4	Bergur Snorrason	5380	C	2019-01-17 11:12:31

#	User	Length	Language	Date
1	Dima A	2352	C#	2024-04-16 09:06:30
2	Tom Ilestrand	2399	C#	2019-04-09 10:35:18
3	Mikael Fiala-Lundström	2788	C#	2021-11-26 18:30:25
4	Henning Odén	3725	C#	2019-11-07 15:12:06
5	Gurpartap Singh Bhatti	3737	C#	2020-04-19 20:42:19

#	User	Length	Language	Date
1	Alexander Skidanov	562	C++	2024-10-07 17:00:27
2	Ivan Petrov	597	C++	2019-06-27 09:48:08
3	Caeden Whitaker	609	C++	2020-12-09 01:39:30
4	Drake Cullen	627	C++	2020-11-17 06:47:21
5	Ragnar Groot Koerkamp	629	C++	2018-12-27 13:22:50
6	Rik Bauwens	639	C++	2020-11-26 17:43:06
7	人外沙耶	647	C++	2020-12-10 10:55:02
8	Deniz Lapsekili	649	C++	2024-11-03 19:20:17
9	Wang Zhi Jian	653	C++	2019-05-08 09:16:45
10	Markus Mathiasen	653	C++	2022-06-09 15:52:00

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1551	F#	2023-02-20 18:39:09

#	User	Length	Language	Date
1	Leni Mayer	1278	Go	2025-03-16 14:43:47
2	Norbert Voelker	1300	Go	2021-07-28 18:39:17
3	Silas Ulander	1802	Go	2022-12-16 14:52:27
4	Wei Guo	3086	Go	2023-01-11 14:48:33

#	User	Length	Language	Date
1	Mason Barnhill	895	Haskell	2023-06-21 07:00:16
2	Steinar Simonnes	926	Haskell	2024-08-31 15:17:05
3	Tomas Möre	933	Haskell	2019-05-19 12:18:16
4	Nazarii Bardiuk	995	Haskell	2018-12-29 20:14:32
5	Jan Hrček	1044	Haskell	2021-03-12 13:32:08
6	Gaston Gilbert	1115	Haskell	2020-10-28 02:11:45
7	Brent Yorgey	1381	Haskell	2018-12-27 14:18:37
8	Hidden user	9359	Haskell	2019-10-27 12:58:07

#	User	Length	Language	Date
1	Doug Goodman	907	Java	2019-05-10 22:18:48
2	Evan Losier	1038	Java	2019-10-31 04:37:23
3	Nanda Thant Sin	1080	Java	2019-08-08 12:18:58
4	Isaak Coleman	1182	Java	2020-04-03 01:30:28
5	Maryam Shafizadegan	1239	Java	2021-08-07 07:14:30
6	Malte Larsson	1253	Java	2019-05-19 11:39:22
7	Hidden user	1302	Java	2018-12-29 22:25:37
8	Paul Cappaert	1328	Java	2019-01-21 18:31:27
9	Paul Boddington	1357	Java	2020-07-12 02:53:21
10	Eric Leow Yu Quan	1446	Java	2020-12-26 07:18:56

#	User	Length	Language	Date
1	Peter Kedemo	766	JavaScript (Node.js)	2019-12-28 11:18:38
2	Emil Clemedson	2056	JavaScript (Node.js)	2021-08-23 09:13:21

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	906	JavaScript (SpiderMonkey)	2023-05-24 11:47:18
2	Bjørn Chr. Soltvedt	919	JavaScript (SpiderMonkey)	2019-01-03 03:26:23
3	Simon Titkó	965	JavaScript (SpiderMonkey)	2023-12-04 21:49:39

#	User	Length	Language	Date
1	Timothy Gaede	1556	Julia	2024-06-18 15:01:37

#	User	Length	Language	Date
1	Adam Rankin	1137	Kotlin	2023-09-15 22:54:14
2	Ola Sundell	1220	Kotlin	2019-11-11 15:42:42
3	Hidden user	1460	Kotlin	2019-11-04 12:15:20
4	Matthew Lutze	1541	Kotlin	2019-09-23 07:34:37
5	Neil Harmon	2057	Kotlin	2019-07-24 11:32:11

#	User	Length	Language	Date
1	Thomas Feld	247	Python 2	2019-09-12 16:13:53
2	Måns Magnusson	452	Python 2	2019-05-12 13:18:30
3	Jesper Öqvist	506	Python 2	2019-08-10 03:54:18
4	Andreas Björklund	577	Python 2	2019-05-21 21:47:20
5	Maj Stenmark	579	Python 2	2019-10-16 17:48:38
6	David Nilsson	681	Python 2	2019-07-27 08:26:35
7	Jonatan Nilsson	708	Python 2	2019-05-19 12:15:13
8	Yanmarshus Bachtiar	729	Python 2	2020-08-24 05:15:42
9	Johan Lyts	840	Python 2	2019-06-13 13:28:42
10	Lars Åström	884	Python 2	2019-05-19 11:59:00

#	User	Length	Language	Date
1	Charles Ancheta	260	Python 3	2023-04-13 01:32:19
2	Yong Mao	289	Python 3	2023-07-28 03:31:02
3	Teikn Smith	335	Python 3	2022-07-02 00:02:19
4	Ahmed Chamseddine	369	Python 3	2024-12-18 17:22:25
5	Miorel Palii	388	Python 3	2022-03-16 23:05:39
6	David Ludwig	405	Python 3	2021-11-13 18:17:30
7	Lester Muñoz	409	Python 3	2019-02-27 23:34:59
8	Oskar Haarklou Veileborg	437	Python 3	2020-05-04 15:53:13
9	Tai Tze Kin	443	Python 3	2024-05-04 23:48:59
10	Suus Brommer	445	Python 3	2025-05-21 12:23:06

#	User	Length	Language	Date
1	Vincent Lagerros	1021	Rust	2025-06-13 00:29:08
2	Bas Dirks	1839	Rust	2022-01-19 17:29:11
3	Jonathan L	2275	Rust	2019-05-19 11:44:12

Solution running time distribution