Problem I
Conservation — Problem Statistics

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Submissions	3140
Accepted submissions	953
Submission ratio	30.35%
Authors	683
Accepted authors	575
Author ratio	84.19%

#	User	Runtime	Language	Date
1	Lucas Towers	0.16 s	C	2023-04-24 23:08:33
2	Ivan Petrov	0.70 s	C	2019-08-18 18:37:20
3	pengin	1.97 s	C	2021-08-17 12:26:59

#	User	Runtime	Language	Date
1	Henry Xia	0.27 s	C++	2018-11-19 23:39:02
2	Agis Daniels	0.29 s	C++	2020-03-29 23:52:43
3	Brandon Zhang	0.32 s	C++	2018-11-22 00:10:35
4	Joel Au	0.33 s	C++	2020-05-29 08:46:12
5	Lukas Rickie	0.33 s	C++	2022-01-23 06:11:10
6	Jay Lim	0.34 s	C++	2019-01-31 01:38:34
7	Nguyen Xuan Tung	0.34 s	C++	2021-12-22 17:27:19
8	Geralt of Rivia	0.35 s	C++	2022-05-20 04:56:57
9	Mark Wong Tau Yew	0.37 s	C++	2019-12-02 09:32:17
10	Hidden user	0.37 s	C++	2019-12-03 13:10:54

#	User	Runtime	Language	Date
1	Frank Endriss	2.61 s	Go	2021-12-28 11:01:59

#	User	Runtime	Language	Date
1	Crystal Sharpe	1.06 s	Java	2020-08-01 22:26:59
2	Bjørn Dons	2.05 s	Java	2022-06-18 21:45:06
3	Nils Olsson	2.27 s	Java	2021-06-06 11:47:41
4	Taras Romanyuk	2.29 s	Java	2024-06-05 13:04:29
5	Shreyas Jamadagni	2.32 s	Java	2024-10-29 13:54:57
6	Josenildo Silva	2.44 s	Java	2017-07-21 01:00:19
7	Jacob Magnuson	2.44 s	Java	2020-01-15 06:50:37
8	Meng Siong Hwee	2.48 s	Java	2022-11-20 08:36:21
9	Rene Argento	2.52 s	Java	2023-03-25 17:00:39
10	Morten Flensborg Jensen	2.58 s	Java	2020-04-29 23:13:34

#	User	Runtime	Language	Date
1	Christian Cederquist	2.78 s	JavaScript (SpiderMonkey)	2023-11-02 22:02:29

#	User	Runtime	Language	Date
1	Hidden user	2.54 s	Kotlin	2020-02-22 03:39:20
2	Benjamin Ye	2.68 s	Kotlin	2024-01-07 08:25:08
3	Phường Lên	5.22 s	Kotlin	2020-02-24 02:43:27

#	User	Runtime	Language	Date
1	Andreas Björklund	2.41 s	Python 2	2020-03-28 11:47:26
2	Lars Åström	3.41 s	Python 2	2019-10-07 14:37:28
3	Ram Basnet	4.38 s	Python 2	2020-03-29 06:46:22
4	Agis Daniels	4.61 s	Python 2	2021-12-12 18:29:36

#	User	Runtime	Language	Date
1	Nhự Nương Họ Vũ	1.60 s	Python 3	2025-03-25 03:50:11
2	Ole Vik Lysne	1.62 s	Python 3	2025-01-21 18:19:04
3	HUANG YUCHEN	1.74 s	Python 3	2025-01-31 13:42:57
4	Gladwin Yeo	1.85 s	Python 3	2022-07-06 04:39:39
5	Ethan	1.90 s	Python 3	2025-06-10 14:51:43
6	Ryan Tan	2.01 s	Python 3	2022-04-21 15:04:44
7	Hao Yi	2.07 s	Python 3	2024-01-11 04:42:43
8	Jiaming Liu	2.09 s	Python 3	2024-01-17 08:02:25
9	Isaac Lee	2.11 s	Python 3	2023-05-25 02:21:35
10	Romain Lhotte	2.12 s	Python 3	2024-04-09 17:00:26

#	User	Runtime	Language	Date
1	Yusuke Ichiki	6.15 s	Ruby	2022-05-24 11:49:45

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.11 s	Rust	2025-05-22 00:16:05
2	Jonathan Choi	0.48 s	Rust	2024-04-29 00:22:59
3	Iwancof	0.57 s	Rust	2023-05-23 07:20:46
4	Ryan O'Hara	0.60 s	Rust	2022-03-30 03:03:51
5	Daniel Anker Hermansen	0.65 s	Rust	2023-09-20 13:21:34
6	Sindbad Walter	0.99 s	Rust	2023-10-29 02:12:05
7	藤原潮人	1.00 s	Rust	2023-07-14 00:01:33
8	Otakar Hirs	3.51 s	Rust	2023-02-08 15:25:35

#	User	Length	Language	Date
1	Ivan Petrov	1214	C	2019-08-18 18:37:20
2	pengin	2438	C	2021-08-17 12:26:59
3	Lucas Towers	5514	C	2023-04-23 20:57:36

#	User	Length	Language	Date
1	Teikn Smith	823	C++	2022-06-23 01:56:24
2	Nikola Katov	882	C++	2023-10-23 19:36:41
3	Minwoo Youn	969	C++	2022-06-21 10:21:28
4	Hidden user	970	C++	2024-09-06 16:33:38
5	Mårten Wiman	974	C++	2014-10-20 17:37:39
6	Rafael Kristoforus Yanto	979	C++	2025-03-01 09:20:47
7	Thiago Bastos	985	C++	2021-09-10 19:27:24
8	Alin Odobescu	988	C++	2022-09-02 22:05:11
9	Second Try	1000	C++	2020-04-25 03:33:26
10	Liu Husong	1015	C++	2019-01-29 01:41:25

#	User	Length	Language	Date
1	Frank Endriss	2861	Go	2021-12-28 10:45:00

#	User	Length	Language	Date
1	Josenildo Silva	1583	Java	2017-07-21 01:00:19
2	Kushal Dandamudi	1964	Java	2021-01-30 01:12:21
3	Crystal Sharpe	1993	Java	2020-08-01 22:26:59
4	Doug Goodman	2128	Java	2017-09-24 19:39:10
5	Hussein Okasha	2229	Java	2023-04-23 13:03:45
6	Daniel West	2313	Java	2021-01-02 19:59:06
7	Erik Baalhuis	2317	Java	2016-08-04 19:58:18
8	Alex Coleman	2342	Java	2018-11-02 03:16:48
9	David Becerra	2360	Java	2022-03-07 22:01:41
10	Kevin Sheng	2511	Java	2025-01-27 00:02:33

#	User	Length	Language	Date
1	Christian Cederquist	1082	JavaScript (SpiderMonkey)	2023-11-02 22:02:29

#	User	Length	Language	Date
1	Benjamin Ye	470	Kotlin	2024-01-11 06:07:43
2	Hidden user	2587	Kotlin	2020-02-22 03:39:20
3	Phường Lên	3928	Kotlin	2020-02-24 02:43:27

#	User	Length	Language	Date
1	Andreas Björklund	758	Python 2	2020-03-28 11:47:26
2	Agis Daniels	1476	Python 2	2021-12-12 18:29:36
3	Lars Åström	1612	Python 2	2019-10-07 14:37:28
4	Ram Basnet	2450	Python 2	2020-03-29 06:28:33

#	User	Length	Language	Date
1	Benjamin Ye	302	Python 3	2024-02-02 07:51:48
2	Luke Vandevoorde	468	Python 3	2024-01-19 20:54:27
3	Kelly Dance	639	Python 3	2023-09-08 20:17:48
4	Teikn Smith	665	Python 3	2022-06-23 01:50:17
5	Oskar Haarklou Veileborg	689	Python 3	2020-03-10 11:27:54
6	Thibault Raffaillac	735	Python 3	2021-03-02 15:54:17
7	Anshuman Dash	768	Python 3	2024-01-06 23:53:49
8	Ole Vik Lysne	782	Python 3	2025-01-21 02:17:01
9	Simon Andersen	883	Python 3	2023-01-30 13:44:30
10	Alice Chu	939	Python 3	2024-10-26 18:42:55

#	User	Length	Language	Date
1	Yusuke Ichiki	1017	Ruby	2022-05-24 11:49:45

#	User	Length	Language	Date
1	Ryan O'Hara	1872	Rust	2022-03-30 03:03:51
2	藤原潮人	2508	Rust	2023-07-14 00:01:33
3	Sindbad Walter	2844	Rust	2023-10-29 02:12:05
4	Jonathan Choi	3370	Rust	2024-04-29 00:22:59
5	Otakar Hirs	4771	Rust	2023-02-08 15:25:35
6	Daniel Anker Hermansen	22798	Rust	2023-09-20 13:21:34
7	Iwancof	31978	Rust	2023-05-23 07:20:46
8	Vincent Lagerros	55091	Rust	2025-05-22 00:16:05

Solution running time distribution