Problem A
Tree Insertion — Problem Statistics

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Submissions	1665
Accepted submissions	805
Submission ratio	48.35%
Authors	683
Accepted authors	579
Author ratio	84.77%

#	User	Runtime	Language	Date
1	Kunwei Zhang	0.03 s	C#	2018-02-17 10:53:31
2	Emil Bak-Møller	0.04 s	C#	2020-02-13 03:08:36
3	Hidden user	0.04 s	C#	2020-07-05 21:50:06
4	Simon Ståhlberg	0.05 s	C#	2014-05-12 17:25:32
5	Andreas Löfwenmark	0.05 s	C#	2014-05-12 17:35:06
6	Brandon	0.05 s	C#	2025-06-21 00:35:10
7	PumpedByFranck Tm	0.06 s	C#	2025-06-20 19:56:39
8	Matias Suarez	0.06 s	C#	2025-06-20 22:47:40

#	User	Runtime	Language	Date
1	Gal Zakrajsek	0.00 s	C++	2018-02-06 15:49:27
2	Anh Mai Le Xuan	0.00 s	C++	2019-01-12 12:56:36
3	Nguyen Quoc Anh	0.00 s	C++	2022-07-21 03:06:12
4	Nguyen Le Tai Duc (K17_CT)	0.00 s	C++	2022-07-21 04:01:29
5	Danh Thi Cam Tien (K17 CT)	0.00 s	C++	2022-07-21 04:48:20
6	Nguyen Nguyen Khanh _FUG CT	0.00 s	C++	2022-07-21 13:49:00
7	Nguyễn Trung Kiên (FPL CT)	0.00 s	C++	2022-07-23 06:33:52
8	Lukas Polacek	0.01 s	C++	2014-11-24 18:46:25
9	Mårten Wiman	0.01 s	C++	2015-08-23 14:10:42
10	Batura Dima	0.01 s	C++	2017-12-05 22:05:39

#	User	Runtime	Language	Date
1	Norbert Voelker	0.09 s	Go	2021-02-18 01:23:58

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.01 s	Haskell	2023-05-20 18:20:02
2	Jannik Olbrich	0.01 s	Haskell	2023-07-12 16:01:12
3	Oskar Segersvärd	0.02 s	Haskell	2014-12-18 11:35:04
4	Matthew Johnson	0.02 s	Haskell	2018-02-18 03:33:12
5	Brent Yorgey	0.02 s	Haskell	2018-02-25 04:59:15
6	Håkon Flatval	0.02 s	Haskell	2018-09-02 18:59:02
7	Ng Tek In	0.02 s	Haskell	2022-08-12 16:56:27
8	Daniel Liland	0.02 s	Haskell	2023-05-23 18:21:24
9	Simon Olander Sahlén	0.03 s	Haskell	2014-12-11 15:29:19
10	Johan Meier	0.03 s	Haskell	2017-01-05 03:38:23

#	User	Runtime	Language	Date
1	Petr Ryšavý	0.10 s	Java	2016-02-10 18:18:17
2	Paul Boddington	0.10 s	Java	2017-01-21 22:51:22
3	Nick Wu	0.11 s	Java	2016-12-06 16:21:38
4	Steven Cheng	0.11 s	Java	2018-05-17 21:14:59
5	José Vander Meulen	0.11 s	Java	2018-12-17 21:42:26
6	Joshua Chan	0.12 s	Java	2016-09-02 05:11:23
7	Micah Stairs	0.12 s	Java	2016-10-27 00:53:38
8	Hidden user	0.12 s	Java	2018-02-09 01:57:33
9	Paul Molina Plant	0.12 s	Java	2018-02-17 10:01:18
10	Landon Marshall	0.12 s	Java	2018-02-18 23:53:35

#	User	Runtime	Language	Date
1	Andoko Chandra	0.44 s	JavaScript (Node.js)	2020-10-21 07:15:47

#	User	Runtime	Language	Date
1	Christian Cederquist	0.04 s	JavaScript (SpiderMonkey)	2023-03-13 11:08:22

#	User	Runtime	Language	Date
1	Hidden user	0.37 s	Kotlin	2019-11-22 20:26:57

#	User	Runtime	Language	Date
1	Dmitry Lyubshin	0.05 s	Python 2	2018-05-27 10:59:27
2	John Paul Hanson	0.07 s	Python 2	2019-01-05 23:36:51
3	Sigurður Jens Albertsson	0.08 s	Python 2	2017-12-06 00:53:39
4	Haggai Liu	0.08 s	Python 2	2018-02-13 07:35:36
5	Daniel Kurniadi	0.09 s	Python 2	2020-09-23 04:10:26
6	Hermon Mulat	0.10 s	Python 2	2016-12-20 09:35:24
7	Hidden user	0.12 s	Python 2	2019-04-13 16:41:51
8	Thomas Feld	0.12 s	Python 2	2019-12-11 13:12:43
9	Jesper Öqvist	0.13 s	Python 2	2018-10-22 23:58:18
10	Andreas Björklund	0.13 s	Python 2	2019-03-12 19:43:40

#	User	Runtime	Language	Date
1	Lim Yun Kai	0.04 s	Python 3	2016-09-01 18:45:23
2	Zac Friggstad	0.04 s	Python 3	2018-12-06 21:22:37
3	Noah Weninger	0.04 s	Python 3	2018-12-07 23:36:38
4	Mees de Vries	0.04 s	Python 3	2019-05-20 09:33:28
5	Isaac Lee	0.04 s	Python 3	2019-12-20 04:05:59
6	William Fiset	0.05 s	Python 3	2016-10-27 02:32:48
7	Alexei Fedotov	0.05 s	Python 3	2018-09-14 17:27:30
8	Jacob Raymond	0.05 s	Python 3	2018-11-05 04:10:56
9	Lim Ming Yean	0.05 s	Python 3	2018-12-08 04:37:21
10	Roger Bongers	0.05 s	Python 3	2019-04-04 15:09:20

#	User	Runtime	Language	Date
1	Paulo Araújo	0.07 s	Ruby	2020-12-22 18:55:41

#	User	Length	Language	Date
1	Pham Minh Nhat (K17 CT)	1860	C	2022-07-20 15:43:00
2	K17 CT Phan Lê Thái Nam	1874	C	2022-07-21 16:21:50
3	Vo Minh Thong (K17 CT)	1936	C	2022-07-22 12:48:10
4	Nguyen Dang Khoa (K17_CT)	1960	C	2022-07-20 14:40:24
5	Huynh Tuan Hien (K17 CT)	1960	C	2022-07-21 08:59:43
6	DANG HAI NGUYEN (K17_CT)	1960	C	2022-07-21 11:10:38
7	Nguyen Pham Tien Dat (K17 CT)	2039	C	2022-07-21 07:50:42
8	Pham Ngoc Quy (K17 CT)	2042	C	2022-07-21 06:48:24
9	Mai Quang Vinh (K17_CT)	2044	C	2022-07-20 05:15:17
10	Tu Quoc Phat	2044	C	2022-07-21 03:01:38

#	User	Length	Language	Date
1	Kunwei Zhang	1683	C#	2018-02-17 10:53:31
2	Emil Bak-Møller	2073	C#	2020-02-13 03:08:36
3	PumpedByFranck Tm	2488	C#	2025-06-20 19:56:39
4	Matias Suarez	2549	C#	2025-06-20 22:47:40
5	Hidden user	2577	C#	2020-07-05 21:50:06
6	Brandon	2613	C#	2025-06-21 00:35:10
7	Simon Ståhlberg	5436	C#	2014-05-12 17:25:32
8	Andreas Löfwenmark	5436	C#	2014-05-12 17:35:06

#	User	Length	Language	Date
1	Nguyễn Trung Kiên (FPL CT)	1946	C++	2022-07-23 06:34:46
2	Danh Thi Cam Tien (K17 CT)	1960	C++	2022-07-21 04:48:20
3	Lukas Polacek	2008	C++	2014-11-24 18:46:25
4	Nguyen Quoc Anh	2031	C++	2022-07-21 03:06:12
5	Gal Zakrajsek	2150	C++	2018-02-06 15:49:27
6	Bitter Thread	2558	C++	2021-11-14 11:36:29
7	Nguyen Le Tai Duc (K17_CT)	2592	C++	2022-07-21 04:01:29
8	Nguyen Nguyen Khanh _FUG CT	2592	C++	2022-07-21 13:49:00
9	Mårten Wiman	2717	C++	2015-08-23 14:10:42
10	I Lucian	2774	C++	2021-03-29 09:32:12

#	User	Length	Language	Date
1	Norbert Voelker	1912	Go	2021-02-18 01:23:58

#	User	Length	Language	Date
1	Steinar Simonnes	520	Haskell	2023-05-18 18:06:32
2	Håkon Flatval	680	Haskell	2018-09-02 18:59:02
3	Dominik Cirillo	864	Haskell	2023-07-12 19:03:03
4	Matthew Johnson	987	Haskell	2018-02-18 03:33:12
5	Eoin Davey	1032	Haskell	2018-03-09 02:07:42
6	Johan Meier	1060	Haskell	2017-01-05 03:38:23
7	Ng Tek In	1105	Haskell	2022-08-12 16:56:27
8	Jannik Olbrich	1133	Haskell	2023-07-12 16:01:12
9	Brent Yorgey	1417	Haskell	2018-02-25 04:59:15
10	Simon Olander Sahlén	1586	Haskell	2014-12-11 15:29:19

#	User	Length	Language	Date
1	Pakorn Ueareeworakul	1162	Java	2018-04-03 11:09:00
2	Richa Bhute	1278	Java	2018-02-17 03:49:42
3	Dawson Thompson	1330	Java	2018-02-20 23:10:53
4	Hidden user	1379	Java	2018-02-21 06:07:13
5	Wen Li Looi	1414	Java	2016-12-01 04:54:05
6	Jarrett Spiker	1422	Java	2016-12-01 03:39:41
7	Doug Goodman	1468	Java	2018-06-05 18:59:12
8	Jesse Browell	1469	Java	2018-02-20 02:13:30
9	David Sturgill	1560	Java	2020-06-04 18:05:12
10	Sharon Umute	1661	Java	2018-02-11 23:34:42

#	User	Length	Language	Date
1	Andoko Chandra	3685	JavaScript (Node.js)	2020-10-21 07:15:47

#	User	Length	Language	Date
1	Christian Cederquist	2589	JavaScript (SpiderMonkey)	2023-03-13 11:08:22

#	User	Length	Language	Date
1	Hidden user	1789	Kotlin	2019-11-22 20:26:57

#	User	Length	Language	Date
1	a_b__c	300	Python 2	2021-01-09 11:00:38
2	Haggai Liu	475	Python 2	2018-02-13 07:35:36
3	Dmitry Lyubshin	489	Python 2	2018-05-27 10:59:27
4	Daniel Kurniadi	501	Python 2	2020-09-23 04:10:26
5	Thomas Feld	515	Python 2	2019-12-11 13:12:43
6	John Paul Hanson	792	Python 2	2019-01-05 23:36:51
7	Lim Hong Hui Eugene	920	Python 2	2018-05-03 12:16:41
8	Hermon Mulat	1060	Python 2	2016-12-20 09:35:24
9	Jesper Öqvist	1103	Python 2	2018-10-22 23:58:18
10	Andreas Björklund	1137	Python 2	2019-03-12 19:43:40

#	User	Length	Language	Date
1	Paco Criado	293	Python 3	2023-08-01 18:03:16
2	Tai Tze Kin	298	Python 3	2024-05-03 10:06:39
3	Kelly Dance	352	Python 3	2023-04-06 00:53:13
4	Noah Weninger	398	Python 3	2018-12-07 23:36:38
5	Magnus Hokland Hegdahl	402	Python 3	2023-05-03 22:36:24
6	Hidden user	403	Python 3	2023-04-19 05:37:47
7	Snorre Håland	432	Python 3	2023-05-08 13:29:23
8	Christian Blumenthal	435	Python 3	2020-07-27 23:35:41
9	Simon Andersen	442	Python 3	2023-05-03 16:46:19
10	Ahmed Chamseddine	452	Python 3	2024-12-27 16:47:58

#	User	Length	Language	Date
1	Paulo Araújo	1329	Ruby	2020-12-22 18:55:41

Solution running time distribution