Problem A
Hardwood Species — Problem Statistics

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Submissions	3658
Accepted submissions	1399
Submission ratio	38.24%
Authors	1037
Full solves [?]	915
Full solve Ratio	88.24%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.34 s	Bash	2023-10-10 13:46:41

#	User	Runtime	Language	Date
1	Hidden user	0.07 s	C	2022-04-14 10:40:37
2	001 นชิรัตน์ ราชบุรี (11295067493-0)	0.10 s	C	2024-10-01 04:14:53
3	Naveen Kumar S	0.10 s	C	2025-05-03 08:12:01
4	Larisa Elena Livadariu	0.11 s	C	2025-02-28 16:41:19
5	Mirel Cosulschi	0.39 s	C	2025-03-29 11:45:45
6	Sami Al Chalati	0.53 s	C	2024-10-28 21:09:44

#	User	Runtime	Language	Date
1	traxex	0.28 s	C#	2024-05-26 15:16:45
2	Evan Revis	0.31 s	C#	2024-02-08 17:08:37
3	Benjamin Bilbeau	0.32 s	C#	2024-02-05 16:36:55
4	Brad Beise	0.32 s	C#	2024-02-12 13:58:20
5	Mikael Fiala-Lundström	0.68 s	C#	2021-06-27 22:55:12
6	Andriy Zyevakov	0.73 s	C#	2019-06-08 17:31:26

#	User	Runtime	Language	Date
1	Noah Weninger	0.08 s	C++	2018-12-19 00:48:05
2	Jacky Blois	0.10 s	C++	2023-07-28 13:26:33
3	Marc Phua	0.11 s	C++	2019-03-12 17:56:12
4	Wei Chin	0.11 s	C++	2019-09-17 04:59:20
5	Hyunjun Lee	0.11 s	C++	2022-11-12 06:14:49
6	Donald Dong	0.12 s	C++	2018-05-03 07:02:16
7	Clement Cheng Le Da	0.12 s	C++	2019-03-24 04:39:16
8	Joris Kerkhoff	0.12 s	C++	2019-05-16 20:06:36
9	Neev Kataria	0.12 s	C++	2024-01-04 14:11:28
10	Brad	0.12 s	C++	2024-06-14 20:05:22

#	User	Runtime	Language	Date
1	Hidden user	0.56 s	Common Lisp	2019-06-18 05:36:22

#	User	Runtime	Language	Date
1	Nope Nope	0.14 s	Go	2023-08-17 09:11:17
2	Markus Hansson	0.35 s	Go	2022-10-03 07:59:21
3	Silas Ulander	0.35 s	Go	2022-10-03 08:02:46
4	Norbert Voelker	0.36 s	Go	2021-08-19 22:23:20
5	Simon Fontana Oscarsson	0.36 s	Go	2022-10-10 12:31:19
6	Wei Guo	0.37 s	Go	2022-10-10 12:55:50
7	E N Martin	0.38 s	Go	2019-10-21 21:12:22
8	Jesper Lundgren	0.51 s	Go	2021-04-07 14:16:23

#	User	Runtime	Language	Date
1	Hidden user	0.99 s	Haskell	2019-11-04 20:08:50

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.25 s	Java	2022-05-13 09:18:27
2	Doug Goodman	0.47 s	Java	2017-12-19 19:30:00
3	Ada Clevinger	0.47 s	Java	2018-06-20 18:48:11
4	Jacob Harris Cryer Kragh	0.47 s	Java	2023-02-19 11:49:39
5	Amir Jahangard Rafsanjani	0.48 s	Java	2025-12-04 07:22:01
6	Emanuel Gonzalez	0.49 s	Java	2024-02-29 22:42:46
7	Kyle Senebouttarath	0.50 s	Java	2023-05-19 23:39:16
8	Alice Heavey	0.51 s	Java	2017-11-17 13:14:41
9	Jacqueline Eriksson	0.51 s	Java	2017-11-27 14:56:22
10	Hidden user	0.53 s	Java	2019-04-05 10:22:36

#	User	Runtime	Language	Date
1	Hidden user	0.49 s	JavaScript (Node.js)	2024-04-23 21:20:00
2	Justin Stevens	0.64 s	JavaScript (Node.js)	2023-08-25 06:28:03

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.57 s	JavaScript (SpiderMonkey)	2023-02-11 00:27:36
2	Bjørn Chr. Soltvedt	0.60 s	JavaScript (SpiderMonkey)	2018-07-03 09:05:48

#	User	Runtime	Language	Date
1	Kelly Dance	0.56 s	Kotlin	2022-09-25 00:05:19
2	Phường Lên	0.63 s	Kotlin	2019-12-28 06:55:03
3	Damien Ryan Allison	0.77 s	Kotlin	2024-03-28 13:45:25
4	Bradley Richards	0.79 s	Kotlin	2023-10-20 14:57:26
5	Hidden user	0.84 s	Kotlin	2019-12-16 18:00:41
6	Nicholas Johnson	0.85 s	Kotlin	2020-04-07 00:15:11
7	Adam Rankin	0.98 s	Kotlin	2023-05-07 21:39:37

#	User	Runtime	Language	Date
1	Susanne Ragnemalm	0.23 s	PHP	2023-10-13 21:27:02

#	User	Runtime	Language	Date
1	Agis Daniels	0.26 s	Python 2	2019-12-15 23:11:10
2	Christofer Ohlsson	0.27 s	Python 2	2017-11-19 11:07:43
3	Jesper Öqvist	0.27 s	Python 2	2018-11-09 00:05:12
4	Hermon Mulat	0.27 s	Python 2	2018-12-23 18:59:22
5	Lars Åström	0.27 s	Python 2	2019-06-25 16:37:18
6	Asger Hautop Drewsen	0.28 s	Python 2	2018-12-06 10:57:42
7	Yanmarshus Bachtiar	0.28 s	Python 2	2020-09-09 07:06:03
8	Cian Ruane	0.29 s	Python 2	2018-09-02 02:22:52
9	Oskar Haarklou Veileborg	0.29 s	Python 2	2018-11-01 08:59:42
10	Erik Tjøswold	0.32 s	Python 2	2019-02-11 13:46:35

#	User	Runtime	Language	Date
1	Hendrik Richter	0.21 s	Python 3	2018-12-17 10:11:18
2	Hidden user	0.21 s	Python 3	2019-10-19 21:20:19
3	Lee Tze Han	0.24 s	Python 3	2019-10-26 08:09:49
4	Petr	0.27 s	Python 3	2025-08-10 05:43:52
5	Денис Соболев	0.31 s	Python 3	2019-04-26 09:18:59
6	Dominic Berzin Chua Way Gin	0.35 s	Python 3	2025-04-18 03:23:14
7	Hidden user	0.36 s	Python 3	2019-11-05 21:06:57
8	Josh Taylor	0.36 s	Python 3	2022-10-21 01:49:59
9	Daniel	0.36 s	Python 3	2023-08-02 10:31:56
10	Chenzhang Hu	0.36 s	Python 3	2023-10-10 13:43:31

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.35 s	Ruby	2024-05-26 09:07:04
2	Thomas Feld	0.40 s	Ruby	2023-02-09 09:11:48
3	Clement Oh	0.49 s	Ruby	2024-02-22 16:12:32
4	Eleanor Janine Juan	0.56 s	Ruby	2025-03-01 08:53:49

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.04 s	Rust	2025-06-01 01:37:51
2	David Rasch	0.14 s	Rust	2020-09-07 13:33:07
3	Henry Jacobson	0.15 s	Rust	2022-10-24 15:39:01
4	Zack Groff	0.22 s	Rust	2019-08-07 16:58:54
5	楚廷 张	0.29 s	Rust	2024-10-29 04:57:34
6	Hidden user	0.30 s	Rust	2022-10-21 01:41:44
7	Bas Dirks	0.31 s	Rust	2022-01-20 19:32:44
8	Nicholas Bachmann Tjørnelund	0.40 s	Rust	2020-07-04 15:39:30
9	Eric Pinter	0.49 s	Rust	2021-11-28 05:39:58
10	Sarek Høverstad Skotåm	0.52 s	Rust	2022-02-19 21:07:59

#	User	Length	Language	Date
1	Chenzhang Hu	45	Bash	2025-09-13 00:38:36

#	User	Length	Language	Date
1	Sami Al Chalati	855	C	2024-10-28 21:18:18
2	Mirel Cosulschi	912	C	2025-03-29 11:45:45
3	Naveen Kumar S	1847	C	2025-05-03 08:12:01
4	Hidden user	2091	C	2022-04-13 21:08:00
5	Larisa Elena Livadariu	2793	C	2025-02-28 16:41:19
6	001 นชิรัตน์ ราชบุรี (11295067493-0)	3687	C	2024-10-01 04:14:53

#	User	Length	Language	Date
1	traxex	346	C#	2024-05-26 15:16:45
2	Benjamin Bilbeau	969	C#	2023-09-05 14:55:50
3	Evan Revis	1077	C#	2024-02-08 17:08:37
4	Brad Beise	1087	C#	2024-02-12 13:58:20
5	Mikael Fiala-Lundström	1334	C#	2021-06-27 22:55:12
6	Andriy Zyevakov	8487	C#	2019-06-08 17:31:26

#	User	Length	Language	Date
1	Mathias Gernez	181	C++	2023-08-28 22:06:51
2	Evan Magill	223	C++	2023-08-29 14:19:48
3	Hidden user	257	C++	2020-03-07 16:40:33
4	Maciej Lewandowski	285	C++	2020-10-08 23:59:08
5	Markus Mathiasen	294	C++	2021-10-21 11:27:12
6	Alfred Stenborg	295	C++	2021-04-11 11:11:41
7	Eugene Lim Wen Han	296	C++	2019-03-20 09:15:24
8	Dustin Ward	296	C++	2020-10-26 22:51:18
9	Gaelan McMillan	300	C++	2022-11-05 20:14:31
10	Kok Seng Chiew	301	C++	2019-03-20 19:11:30

#	User	Length	Language	Date
1	Hidden user	778	Common Lisp	2019-06-17 22:44:45

#	User	Length	Language	Date
1	Nope Nope	436	Go	2023-08-17 09:11:17
2	E N Martin	491	Go	2019-10-21 21:12:22
3	Wei Guo	528	Go	2022-10-10 12:55:50
4	Norbert Voelker	541	Go	2021-08-19 22:23:20
5	Markus Hansson	597	Go	2022-10-03 07:00:55
6	Simon Fontana Oscarsson	638	Go	2022-10-08 20:49:56
7	Silas Ulander	642	Go	2022-10-03 07:20:05
8	Jesper Lundgren	727	Go	2021-04-07 14:16:23

#	User	Length	Language	Date
1	Hidden user	9301	Haskell	2019-11-04 20:08:50

#	User	Length	Language	Date
1	Doug Goodman	567	Java	2017-12-19 18:39:46
2	Eric Leow Yu Quan	579	Java	2021-01-02 12:39:23
3	Zach Tschetter	593	Java	2021-11-03 01:59:27
4	Emilie Hyslop	697	Java	2021-06-29 04:02:40
5	Logan Bishop	721	Java	2023-03-02 02:18:35
6	Ngo Ngoc Phuong Uyen	741	Java	2021-03-15 04:37:05
7	Emil Bak-Møller	753	Java	2019-03-23 18:48:11
8	Kristoffer Borgstrøm	757	Java	2019-03-25 12:14:29
9	Kenneth Seet	757	Java	2023-10-29 09:19:12
10	Mariann Løtvedt	783	Java	2022-07-12 16:42:16

#	User	Length	Language	Date
1	Justin Stevens	470	JavaScript (Node.js)	2023-08-25 06:28:03
2	Hidden user	566	JavaScript (Node.js)	2024-04-23 21:20:00

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	172	JavaScript (SpiderMonkey)	2023-02-11 00:27:36
2	Bjørn Chr. Soltvedt	339	JavaScript (SpiderMonkey)	2018-07-03 09:05:48

#	User	Length	Language	Date
1	Adam Rankin	278	Kotlin	2023-05-07 21:39:37
2	Bradley Richards	382	Kotlin	2023-03-08 14:23:39
3	Damien Ryan Allison	394	Kotlin	2024-03-28 02:22:51
4	Kelly Dance	442	Kotlin	2022-09-25 00:05:05
5	Nicholas Johnson	699	Kotlin	2020-04-07 00:15:11
6	Hidden user	816	Kotlin	2019-12-16 18:00:41
7	Phường Lên	834	Kotlin	2019-12-28 06:55:03

#	User	Length	Language	Date
1	Susanne Ragnemalm	746	PHP	2023-10-13 21:27:02

#	User	Length	Language	Date
1	Thomas Feld	138	Python 2	2019-09-13 06:51:14
2	Jesper Öqvist	202	Python 2	2018-11-09 00:05:12
3	Oskar Haarklou Veileborg	211	Python 2	2018-11-01 08:59:42
4	Agis Daniels	212	Python 2	2019-12-15 23:17:14
5	Asger Hautop Drewsen	234	Python 2	2018-12-06 10:57:42
6	Johan Lyts	239	Python 2	2019-12-11 20:59:25
7	Ciara Godwin	258	Python 2	2018-05-15 16:29:53
8	Lars Åström	262	Python 2	2019-06-25 16:37:18
9	Yanmarshus Bachtiar	262	Python 2	2020-09-09 07:06:03
10	Christofer Ohlsson	270	Python 2	2017-11-19 11:07:43

#	User	Length	Language	Date
1	Clement Oh	95	Python 3	2023-06-16 16:54:50
2	David Aldenbro	107	Python 3	2025-10-14 15:34:37
3	Zach Tschetter	124	Python 3	2022-10-28 18:36:49
4	Josh Henderson	127	Python 3	2023-04-14 14:10:09
5	Tai Tze Kin	147	Python 3	2024-05-03 20:48:33
6	Oskar Haarklou Veileborg	162	Python 3	2018-11-01 08:59:08
7	Emad Padyab	165	Python 3	2019-07-18 06:52:45
8	Eimhin McDonald	168	Python 3	2018-08-01 20:07:45
9	Alexandre Douard	168	Python 3	2024-03-13 15:53:00
10	Hidden user	170	Python 3	2022-12-14 02:28:39

#	User	Length	Language	Date
1	Thomas Feld	36	Ruby	2023-02-09 09:12:44
2	Chenzhang Hu	36	Ruby	2024-05-26 09:07:04
3	Clement Oh	126	Ruby	2024-02-22 16:12:32
4	Eleanor Janine Juan	330	Ruby	2025-03-01 08:57:34

#	User	Length	Language	Date
1	Bas Dirks	387	Rust	2022-01-20 19:32:44
2	楚廷 张	479	Rust	2024-10-29 04:57:34
3	Nicholas Bachmann Tjørnelund	530	Rust	2020-07-04 15:39:30
4	Hidden user	558	Rust	2022-10-21 01:41:44
5	Sarek Høverstad Skotåm	605	Rust	2022-02-19 21:07:59
6	Henry Jacobson	627	Rust	2022-10-24 15:56:30
7	David Rasch	689	Rust	2020-09-07 13:33:07
8	Zack Groff	887	Rust	2019-08-07 16:58:54
9	Eric Pinter	1180	Rust	2021-11-28 05:36:29
10	Vincent Lagerros	5678	Rust	2024-07-14 13:50:04

Solution running time distribution