Problem A
White Water Rafting — Problem Statistics

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Submissions	2600
Accepted submissions	1133
Submission ratio	43.58%
Authors	892
Full solves [?]	793
Full solve Ratio	88.90%

#	User	Runtime	Language	Date
1	Saito Ta	0.02 s	Bash	2024-04-18 09:49:06
2	Chenzhang Hu	0.09 s	Bash	2024-04-18 14:18:26

#	User	Runtime	Language	Date
1	Daiqi Wu	0.00 s	C	2018-10-23 16:18:51
2	Ivan Petrov	0.00 s	C	2019-09-09 08:01:09
3	Marcel Goh	0.00 s	C	2019-11-25 02:11:26
4	Mirel Cosulschi	0.00 s	C	2025-05-29 13:42:45

#	User	Runtime	Language	Date
1	Simon Ståhlberg	0.03 s	C#	2014-05-03 17:48:25
2	Jayant Notani	0.03 s	C#	2020-05-09 15:40:40
3	Kristoffer Højelse	0.04 s	C#	2022-04-21 22:10:43

#	User	Runtime	Language	Date
1	Aleksander Jan Mistewicz	0.03 s	Go	2019-05-06 12:42:15
2	Norbert Voelker	0.08 s	Go	2021-09-26 21:46:30
3	Hidden user	0.64 s	Go	2019-05-05 15:56:22

#	User	Runtime	Language	Date
1	Oskar Segersvärd	0.01 s	Haskell	2014-12-10 16:11:18
2	Mattias Harrysson	0.01 s	Haskell	2015-12-03 22:46:55
3	Patrik Lilja	0.01 s	Haskell	2016-02-24 22:18:16
4	Knut Anders Stokke	0.01 s	Haskell	2017-03-25 17:33:39
5	Brent Yorgey	0.02 s	Haskell	2018-06-09 17:58:42

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.05 s	Java	2024-04-14 11:43:20
2	Simon Klein	0.06 s	Java	2011-12-14 14:00:11
3	Kai Widell Niigata	0.07 s	Java	2014-05-05 09:31:09
4	Daniel Hollsten	0.07 s	Java	2014-12-04 21:43:05
5	Viktor Mattsson	0.07 s	Java	2014-12-07 15:57:50
6	Carl Eriksson	0.07 s	Java	2014-12-07 20:12:11
7	Magnus Gudmandsen	0.07 s	Java	2014-12-10 12:53:36
8	Thomas Sjöholm	0.07 s	Java	2014-12-10 14:36:47
9	Erik Ranby	0.07 s	Java	2015-12-02 11:10:30
10	Niklas Rönnholm	0.07 s	Java	2015-12-02 22:14:34

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-06-01 15:31:22
2	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2024-02-21 23:04:42

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.29 s	Kotlin	2025-08-05 15:07:08

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Nim	2025-05-26 08:29:27

#	User	Runtime	Language	Date
1	Saito Ta	0.01 s	Perl	2024-04-18 09:44:43

#	User	Runtime	Language	Date
1	Andreas Serra	0.04 s	Python 2	2014-05-05 18:28:12
2	Hidden user	0.05 s	Python 2	2019-04-29 18:42:50
3	Ida Bredal Skjørten	0.07 s	Python 2	2016-11-02 16:33:19
4	Henrik Adolfsson	0.07 s	Python 2	2017-11-28 19:27:02
5	Theodore Morley	0.07 s	Python 2	2018-03-10 21:09:25
6	Jesper Öqvist	0.07 s	Python 2	2018-11-07 19:44:52
7	Andreas Björklund	0.07 s	Python 2	2019-04-08 14:54:34
8	Måns Gezelius	0.09 s	Python 2	2018-04-24 18:08:50
9	Rob Hochberg	0.12 s	Python 2	2017-06-15 20:19:29
10	Hermon Mulat	0.16 s	Python 2	2018-12-21 22:36:26

#	User	Runtime	Language	Date
1	Sindre Nerdal	0.04 s	Python 3	2017-03-20 09:58:44
2	Øyvind Haarberg	0.05 s	Python 3	2017-03-23 02:24:45
3	Hidden user	0.06 s	Python 3	2019-05-05 01:19:48
4	Breck Ortiz	0.06 s	Python 3	2025-05-02 05:26:21
5	Laith Bohsali	0.06 s	Python 3	2025-05-03 00:44:22
6	Driss Khalil	0.07 s	Python 3	2018-08-29 02:38:29
7	David Adamič	0.07 s	Python 3	2018-09-05 18:35:38
8	Hidden user	0.07 s	Python 3	2019-05-04 23:24:03
9	Hidden user	0.07 s	Python 3	2020-06-07 18:27:34
10	Doug Goodman	0.07 s	Python 3	2023-05-26 18:06:03

#	User	Runtime	Language	Date
1	Thomas Feld	0.11 s	Ruby	2024-02-27 13:58:25

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2019-05-05 08:35:45
2	Hidden user	0.00 s	Rust	2019-05-05 16:46:25
3	Yoeri Otten	0.00 s	Rust	2022-03-12 03:29:42
4	Adam Gausmann	0.00 s	Rust	2022-08-15 02:11:12
5	Paul Nutini	0.00 s	Rust	2022-10-21 01:24:00
6	Gustaf Bergmark	0.00 s	Rust	2023-05-12 12:02:38

#	User	Length	Language	Date
1	Chenzhang Hu	1122	Bash	2024-04-18 11:45:01
2	Saito Ta	1213	Bash	2024-04-18 09:49:06

#	User	Length	Language	Date
1	Mirel Cosulschi	1364	C	2025-05-29 13:42:45
2	Ivan Petrov	1694	C	2019-09-09 08:01:09
3	Marcel Goh	3661	C	2019-11-25 02:11:26
4	Daiqi Wu	4327	C	2018-10-23 16:18:51

#	User	Length	Language	Date
1	Jayant Notani	3721	C#	2020-05-09 15:40:40
2	Kristoffer Højelse	6163	C#	2022-04-21 22:10:43
3	Simon Ståhlberg	11767	C#	2014-05-03 17:48:25

#	User	Length	Language	Date
1	Johan Wind	999	C++	2018-11-16 17:09:06
2	Noah Johannessen	1001	C++	2025-05-05 15:43:59
3	Leonardo Gagliardoni	1051	C++	2021-10-02 22:31:04
4	Ayoub Dergaoui	1113	C++	2018-08-27 19:19:59
5	Si Jun Ke	1123	C++	2016-03-16 08:32:03
6	Rares Doica	1144	C++	2022-01-21 08:35:42
7	Josenildo Silva	1154	C++	2016-12-23 21:35:01
8	Dimitri Przybylski	1154	C++	2021-04-29 13:26:34
9	Alex Petru	1158	C++	2022-01-21 08:34:22
10	Briana Filimon	1162	C++	2022-01-21 08:34:12

#	User	Length	Language	Date
1	Norbert Voelker	2308	Go	2021-09-26 22:09:36
2	Aleksander Jan Mistewicz	10502	Go	2019-05-06 12:42:15
3	Hidden user	12691	Go	2019-05-07 15:51:14

#	User	Length	Language	Date
1	Patrik Lilja	1547	Haskell	2016-02-24 22:18:16
2	Knut Anders Stokke	3317	Haskell	2017-03-25 17:33:39
3	Oskar Segersvärd	4978	Haskell	2014-12-10 16:11:18
4	Mattias Harrysson	5280	Haskell	2015-12-03 22:46:55
5	Brent Yorgey	6468	Haskell	2018-06-09 17:58:42

#	User	Length	Language	Date
1	Sebastian Secelean	1387	Java	2016-10-09 23:30:41
2	Mehdi Maick	1439	Java	2016-08-15 23:45:08
3	Daniel Lokshtanov	1440	Java	2017-03-06 11:17:27
4	Kurtis Van Gent	1504	Java	2016-10-21 13:41:52
5	Amad Askor	1562	Java	2016-08-16 00:26:13
6	Lingwei Kong	1587	Java	2013-11-20 15:23:04
7	Duncan Page	1590	Java	2018-03-19 21:59:55
8	Brennan Cleland	1681	Java	2023-05-25 21:23:20
9	Finn Lidbetter	1768	Java	2017-06-28 18:05:09
10	Leran Cai	1809	Java	2013-11-20 15:18:24

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	888	JavaScript (SpiderMonkey)	2024-02-21 23:09:25
2	Christian Pilegaard Cederquist	2754	JavaScript (SpiderMonkey)	2023-06-01 15:31:22

#	User	Length	Language	Date
1	Steinar Simonnes	2129	Kotlin	2025-08-06 07:26:06

#	User	Length	Language	Date
1	Hidden user	1813	Nim	2025-05-26 08:29:27

#	User	Length	Language	Date
1	Saito Ta	547	Perl	2024-04-18 09:44:43

#	User	Length	Language	Date
1	Andreas Björklund	835	Python 2	2019-04-08 14:54:34
2	Michelle Ma	1114	Python 2	2019-11-24 20:48:41
3	Raúl Vides Mosquera Pumaricra	1175	Python 2	2023-07-01 04:22:15
4	Hermon Mulat	1176	Python 2	2018-12-21 22:36:26
5	Zhuoran Zhao	1221	Python 2	2019-11-22 19:27:37
6	Hidden user	1221	Python 2	2020-04-28 04:53:20
7	something here	1221	Python 2	2021-05-01 20:40:34
8	Bowen Yang	1221	Python 2	2022-11-26 01:09:25
9	Ida Bredal Skjørten	1266	Python 2	2016-11-02 16:33:19
10	Jesper Öqvist	1360	Python 2	2018-11-07 19:44:52

#	User	Length	Language	Date
1	Joe Little	636	Python 3	2023-10-30 06:00:17
2	Anh Nguyen	777	Python 3	2023-05-07 09:20:38
3	Nicholas Russell Saerang	813	Python 3	2023-08-13 10:33:07
4	Hong Yuan	813	Python 3	2023-09-05 12:29:57
5	Hidden user	836	Python 3	2023-05-07 02:38:11
6	Hidden user	884	Python 3	2020-06-07 18:27:34
7	Casper Rysgaard	900	Python 3	2021-08-10 07:55:12
8	Artur Khuziakhmetov	904	Python 3	2025-02-12 08:25:21
9	Driss Khalil	980	Python 3	2018-08-29 02:38:29
10	Noah Hessen Bjerke	1036	Python 3	2023-01-03 18:23:33

#	User	Length	Language	Date
1	Thomas Feld	203	Ruby	2024-02-27 14:06:53

#	User	Length	Language	Date
1	Adam Gausmann	2108	Rust	2022-08-15 02:11:12
2	Paul Nutini	6030	Rust	2022-10-21 01:24:00
3	Yoeri Otten	6684	Rust	2022-03-12 19:18:34
4	Hidden user	11922	Rust	2019-05-05 08:36:20
5	Gustaf Bergmark	16633	Rust	2023-05-12 12:02:38
6	Hidden user	24608	Rust	2019-05-05 16:46:25

Solution running time distribution