Problem D
Forests — Problem Statistics

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Submissions	2131
Accepted submissions	687
Submission ratio	32.24%
Authors	651
Accepted authors	555
Author ratio	85.25%

#	User	Runtime	Language	Date
1	Filip Stenström	0.00 s	C	2018-10-21 18:22:01
2	nabil arjani	0.00 s	C	2019-12-31 01:14:32
3	Eyleifur Bjarkason	0.00 s	C	2020-01-18 21:35:39
4	Bergur Snorrason	0.00 s	C	2020-01-21 11:36:54
5	Sambit Palit	0.00 s	C	2020-11-14 20:54:36
6	Priyam Khandlewal	0.00 s	C	2021-01-10 21:57:42
7	Hidden user	0.00 s	C	2022-04-26 10:41:04
8	Hidden user	0.00 s	C	2025-01-11 15:21:46

#	User	Runtime	Language	Date
1	Hidden user	0.03 s	Common Lisp	2019-06-21 08:15:08

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-11-06 23:00:08

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.01 s	Haskell	2025-07-03 15:05:32
2	Ng Tek In	0.04 s	Haskell	2022-09-13 19:25:49
3	Mason Barnhill	0.05 s	Haskell	2023-05-19 05:30:56

#	User	Runtime	Language	Date
1	Derek Thomson	0.07 s	Java	2022-02-24 02:28:29
2	Tobias Glimmerfors	0.09 s	Java	2018-10-17 18:32:52
3	Nick Wu	0.09 s	Java	2022-03-15 02:17:22
4	Brent Yorgey	0.11 s	Java	2018-10-24 03:56:06
5	Liam Keliher	0.11 s	Java	2020-07-15 22:12:05
6	Hidden user	0.12 s	Java	2022-04-20 17:13:46
7	Justin Huynh	0.12 s	Java	2023-09-17 05:19:41
8	Yeo Shu Heng	0.12 s	Java	2023-10-29 05:29:53
9	Allysa Tan Li Ying	0.12 s	Java	2023-11-01 09:03:22
10	Koh Guan Zeh	0.12 s	Java	2023-11-01 14:01:58

#	User	Runtime	Language	Date
1	Thiago Bastos	0.07 s	JavaScript (Node.js)	2023-09-21 23:14:18
2	Chris Wong	0.45 s	JavaScript (Node.js)	2021-03-04 20:49:15

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.04 s	JavaScript (SpiderMonkey)	2018-10-23 01:48:11
2	Christian Cederquist	0.04 s	JavaScript (SpiderMonkey)	2023-06-23 00:18:47

#	User	Runtime	Language	Date
1	Timothy Gaede	0.70 s	Julia	2024-06-22 06:05:42

#	User	Runtime	Language	Date
1	Phường Lên	0.33 s	Kotlin	2020-08-21 04:29:48
2	Brent Yorgey	0.36 s	Kotlin	2020-04-08 23:14:42
3	poppyer	0.36 s	Kotlin	2022-08-07 04:41:34
4	Hidden user	0.37 s	Kotlin	2020-04-14 16:44:46

#	User	Runtime	Language	Date
1	sshz	0.01 s	OCaml	2023-07-27 01:24:04

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.15 s	Prolog	2024-02-06 06:58:30

#	User	Runtime	Language	Date
1	Andreas Eisele	0.03 s	Python 2	2018-10-19 20:20:11
2	Ciara Godwin	0.04 s	Python 2	2018-10-18 16:22:53
3	Kasra Ghodsi	0.04 s	Python 2	2018-10-19 04:17:44
4	Oskar Haarklou Veileborg	0.04 s	Python 2	2018-11-01 10:05:46
5	Yanmarshus Bachtiar	0.04 s	Python 2	2020-10-30 01:30:48
6	Hidden user	0.05 s	Python 2	2018-10-17 17:57:19
7	Felix Balthasar Berief	0.05 s	Python 2	2018-10-17 18:02:43
8	Lars Åström	0.05 s	Python 2	2018-10-17 22:24:57
9	Johann Ly	0.05 s	Python 2	2018-11-04 08:07:36
10	Ram Basnet	0.05 s	Python 2	2020-04-02 05:59:40

#	User	Runtime	Language	Date
1	Christian D'Amico	0.02 s	Python 3	2019-10-20 03:24:17
2	Aaron Lamoreaux	0.03 s	Python 3	2018-11-25 19:25:59
3	Vincent Tandya	0.03 s	Python 3	2019-05-16 04:17:14
4	Alfred Olsson	0.03 s	Python 3	2019-07-30 13:53:56
5	Thomas Vu	0.03 s	Python 3	2019-10-25 07:43:40
6	Kasra Ghodsi	0.04 s	Python 3	2018-10-19 04:16:59
7	Arnav Sastry	0.04 s	Python 3	2018-10-22 14:49:07
8	mike	0.04 s	Python 3	2018-10-22 23:34:41
9	Rick van Rheenen	0.04 s	Python 3	2019-01-09 13:01:24
10	Ian Howell	0.04 s	Python 3	2019-02-18 17:29:54

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Ruby	2019-10-10 22:52:37
2	Miorel Palii	0.07 s	Ruby	2022-03-24 10:37:32
3	Yusuke Ichiki	0.07 s	Ruby	2022-04-26 16:25:26
4	Thomas Feld	0.07 s	Ruby	2023-06-12 15:32:22
5	Clement Oh	0.07 s	Ruby	2024-02-29 17:43:21

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2019-12-08 22:19:00
2	Klas af Geijerstam	0.00 s	Rust	2020-10-08 19:52:52
3	Desireé af Geijerstam	0.00 s	Rust	2020-10-11 15:27:51
4	Pahlevi Fikri Auliya	0.00 s	Rust	2020-11-09 06:17:08
5	Judith Hemp	0.00 s	Rust	2021-01-07 19:37:28
6	Hidden user	0.00 s	Rust	2021-01-07 19:46:57
7	Bas Dirks	0.00 s	Rust	2022-06-08 10:11:39
8	Ryosuke Takahashi	0.00 s	Rust	2023-04-29 20:55:46
9	Iwancof	0.00 s	Rust	2023-05-02 09:54:47
10	Vincent Lagerros	0.00 s	Rust	2025-01-19 00:29:05

#	User	Length	Language	Date
1	nabil arjani	391	C	2019-12-31 01:14:32
2	Priyam Khandlewal	391	C	2021-01-10 21:57:42
3	Hidden user	391	C	2022-04-26 10:41:04
4	Hidden user	1399	C	2025-01-11 15:21:46
5	Sambit Palit	1542	C	2020-11-14 20:54:36
6	Bergur Snorrason	2183	C	2020-01-21 11:36:54
7	Filip Stenström	5674	C	2018-10-21 18:22:01
8	Eyleifur Bjarkason	8219	C	2020-01-18 21:35:39

#	User	Length	Language	Date
1	Hidden user	190	C++	2020-04-19 04:40:49
2	a_b__c	258	C++	2021-02-27 20:11:00
3	Zane Yu	261	C++	2020-01-20 13:15:48
4	Masatoshi Kato	301	C++	2022-05-02 11:03:47
5	dejzi_rose	307	C++	2024-06-14 01:24:43
6	angel stojkovic	308	C++	2024-06-14 01:24:02
7	Markus Mathiasen	312	C++	2021-11-04 09:20:28
8	bekarhunmain	315	C++	2024-06-15 19:15:31
9	Lav Radosavljevic	321	C++	2018-10-17 17:36:10
10	shibh308	321	C++	2022-04-26 04:38:46

#	User	Length	Language	Date
1	Hidden user	524	Common Lisp	2019-06-21 08:34:46

#	User	Length	Language	Date
1	Norbert Voelker	686	Go	2021-11-06 23:00:08

#	User	Length	Language	Date
1	Mason Barnhill	433	Haskell	2023-05-19 05:30:56
2	Steinar Simonnes	658	Haskell	2025-07-03 15:05:32
3	Ng Tek In	803	Haskell	2022-09-13 19:25:49

#	User	Length	Language	Date
1	Stalvio Neto	489	Java	2025-03-08 07:28:51
2	Sam Huynh	573	Java	2022-02-25 07:26:10
3	Varvara Melentieva	613	Java	2020-11-21 18:37:35
4	Sharanya Chatterjee	706	Java	2022-10-16 17:11:35
5	Lucas Sternhagen	760	Java	2019-03-18 03:36:09
6	Sarthak Shrivastava	773	Java	2023-12-10 08:28:34
7	Amelia Jones	775	Java	2023-11-28 21:14:56
8	Abderrahime FILALI	784	Java	2025-02-05 23:18:12
9	Hidden user	791	Java	2025-02-04 05:33:01
10	Doug Goodman	798	Java	2019-02-23 15:32:23

#	User	Length	Language	Date
1	Chris Wong	712	JavaScript (Node.js)	2021-03-04 20:49:15
2	Thiago Bastos	760	JavaScript (Node.js)	2023-09-21 23:14:18

#	User	Length	Language	Date
1	Christian Cederquist	428	JavaScript (SpiderMonkey)	2023-06-23 00:18:47
2	Bjørn Chr. Soltvedt	436	JavaScript (SpiderMonkey)	2018-10-23 01:48:11

#	User	Length	Language	Date
1	Timothy Gaede	550	Julia	2024-06-22 06:05:42

#	User	Length	Language	Date
1	Hidden user	485	Kotlin	2020-04-14 16:44:46
2	Brent Yorgey	770	Kotlin	2020-04-08 23:54:58
3	poppyer	932	Kotlin	2022-08-07 04:41:34
4	Phường Lên	1146	Kotlin	2020-08-21 04:29:48

#	User	Length	Language	Date
1	sshz	853	OCaml	2023-07-27 01:24:04

#	User	Length	Language	Date
1	Andriy Zyevakov	1351	Prolog	2024-02-06 06:58:30

#	User	Length	Language	Date
1	Andreas Eisele	166	Python 2	2018-10-19 20:20:11
2	Andreas Björklund	185	Python 2	2020-10-23 06:17:12
3	Hidden user	207	Python 2	2019-07-06 02:25:28
4	Oskar Haarklou Veileborg	234	Python 2	2018-11-01 10:05:46
5	Johann Ly	324	Python 2	2018-11-04 08:07:36
6	Ciara Godwin	331	Python 2	2018-10-18 16:22:53
7	Felix Balthasar Berief	356	Python 2	2018-10-17 18:02:43
8	Kasra Ghodsi	365	Python 2	2018-10-19 04:17:44
9	Yanmarshus Bachtiar	429	Python 2	2020-10-30 01:30:48
10	Hidden user	614	Python 2	2018-10-17 17:57:19

#	User	Length	Language	Date
1	Clement Oh	100	Python 3	2023-06-16 19:47:08
2	Ahmed Chamseddine	134	Python 3	2025-07-02 02:16:09
3	Hidden user	137	Python 3	2021-01-07 19:57:08
4	Agis Daniels	150	Python 3	2020-03-06 10:48:22
5	Jason Cannon	161	Python 3	2020-01-07 20:01:41
6	Michael Goldwasser	166	Python 3	2024-08-22 06:55:49
7	Nicholas Russell Saerang	168	Python 3	2022-03-08 21:22:37
8	Farzam Abrishami	173	Python 3	2024-01-23 22:05:21
9	Yuko Yoshida	174	Python 3	2023-04-25 19:15:17
10	nabil arjani	182	Python 3	2019-12-29 00:47:43

#	User	Length	Language	Date
1	Thomas Feld	69	Ruby	2023-06-12 15:34:19
2	Clement Oh	141	Ruby	2024-02-29 17:43:21
3	Yusuke Ichiki	195	Ruby	2022-04-26 16:25:26
4	Hidden user	239	Ruby	2019-10-10 22:52:37
5	Miorel Palii	283	Ruby	2022-03-24 10:37:32

#	User	Length	Language	Date
1	Hidden user	607	Rust	2021-01-07 19:46:57
2	Bas Dirks	735	Rust	2022-06-08 10:11:39
3	Eric Pinter	1211	Rust	2021-10-06 01:43:04
4	Judith Hemp	1283	Rust	2021-01-07 19:37:28
5	Hidden user	1302	Rust	2019-12-08 22:19:00
6	Isak Jägberg	1525	Rust	2019-04-19 21:52:58
7	Ryosuke Takahashi	2242	Rust	2023-04-29 20:55:46
8	Pahlevi Fikri Auliya	2379	Rust	2020-11-09 06:17:08
9	Klas af Geijerstam	5767	Rust	2020-10-08 19:52:52
10	Desireé af Geijerstam	5984	Rust	2020-10-11 15:27:51

Solution running time distribution