Problem A
Chemist's vows — Problem Statistics

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Submissions	1931
Accepted submissions	555
Submission ratio	28.74%
Authors	393
Full solves [?]	351
Full solve Ratio	89.31%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.01 s	C	2019-04-30 08:10:40
2	Bergur Snorrason	0.01 s	C	2020-03-04 09:14:38
3	Erin Staugaard	0.01 s	C	2023-05-06 21:41:30
4	Haobo Jiang	0.05 s	C	2016-01-02 12:02:26

#	User	Runtime	Language	Date
1	Edvin Mako	0.16 s	C#	2020-02-13 14:52:22

#	User	Runtime	Language	Date
1	Clarence Chew	0.00 s	C++	2016-02-03 04:50:00
2	Herman Karlsson	0.00 s	C++	2019-12-10 18:34:12
3	Mårten Wiman	0.01 s	C++	2015-03-03 17:05:19
4	Rene Josiah M. Quinto	0.01 s	C++	2016-10-15 05:19:44
5	Tianci Wang	0.01 s	C++	2017-06-10 12:34:59
6	Nicholas Foo Chuan Le	0.01 s	C++	2022-04-12 20:35:16
7	Goh Siau Chiak	0.01 s	C++	2023-02-06 16:12:32
8	Grae Yeandle	0.01 s	C++	2023-02-16 17:20:23
9	Frans Meulenbroeks	0.01 s	C++	2024-10-21 20:49:44
10	Simon Lindholm	0.03 s	C++	2015-03-03 16:43:53

#	User	Runtime	Language	Date
1	Norbert Voelker	0.04 s	Go	2023-03-10 10:06:45
2	Hidden user	0.19 s	Go	2015-10-01 16:43:39

#	User	Runtime	Language	Date
1	Erin Staugaard	0.01 s	Haskell	2023-05-06 23:29:17
2	Udo Stenzel	0.04 s	Haskell	2023-05-06 22:32:28
3	Fabian Mitterwallner	0.04 s	Haskell	2025-10-23 21:45:08
4	TJ Takei	0.09 s	Haskell	2025-09-14 07:49:38
5	Soumik Sarkar	0.11 s	Haskell	2023-05-27 16:06:48
6	Jonas Stendahl	0.14 s	Haskell	2016-05-07 09:56:49
7	Filippo Sestini	0.20 s	Haskell	2023-06-06 15:26:57
8	Stian	0.21 s	Haskell	2020-02-11 14:32:10
9	Steinar Simonnes	0.21 s	Haskell	2025-02-06 09:20:08
10	Brent Yorgey	0.22 s	Haskell	2023-05-19 20:49:09

#	User	Runtime	Language	Date
1	William Fiset	0.16 s	Java	2017-02-24 23:41:08
2	Ho Lyun Jeong	0.16 s	Java	2021-03-26 17:29:30
3	Daniel West	0.21 s	Java	2021-01-02 18:42:46
4	Lozzi Ali	0.22 s	Java	2016-10-12 11:46:24
5	Marco Troltsch	0.24 s	Java	2016-06-08 18:57:12
6	Josenildo Silva	0.26 s	Java	2017-05-10 03:00:31
7	Brent Yorgey	0.26 s	Java	2020-04-29 02:10:51
8	Andrew Polizzotto	0.27 s	Java	2020-05-28 01:44:13
9	Ben Cobb	0.27 s	Java	2024-11-12 18:18:24
10	Terrence Park	0.28 s	Java	2016-04-06 19:08:24

#	User	Runtime	Language	Date
1	kattis@griffinht.com	0.16 s	JavaScript (Node.js)	2024-11-11 23:14:14

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2016-08-24 22:55:19
2	Christian Pilegaard Cederquist	0.08 s	JavaScript (SpiderMonkey)	2023-07-23 19:01:44

#	User	Runtime	Language	Date
1	Benjamin Ye	0.43 s	Kotlin	2023-02-03 05:54:54
2	Ditlef Alexander Diseth	0.63 s	Kotlin	2020-02-13 15:04:28

#	User	Runtime	Language	Date
1	Andriy Zyevakov	2.29 s	Prolog	2016-10-16 15:21:05

#	User	Runtime	Language	Date
1	Hidden user	0.09 s	Python 2	2019-10-04 22:32:47
2	Andreas Björklund	0.09 s	Python 2	2020-04-10 10:59:47
3	Anton Lyxell	0.12 s	Python 2	2019-11-16 12:29:27
4	Nick Wu	0.16 s	Python 2	2015-10-19 01:38:16
5	Asger Hautop Drewsen	0.18 s	Python 2	2015-11-02 16:51:39
6	Alvaro Silvino	0.23 s	Python 2	2016-04-18 22:02:55
7	Jonas Kylling	0.47 s	Python 2	2015-09-17 16:57:52

#	User	Runtime	Language	Date
1	Benjamin Z White	0.10 s	Python 3	2023-07-22 15:06:34
2	Russell	0.10 s	Python 3	2025-09-21 08:17:01
3	Robert Nix	0.11 s	Python 3	2021-04-12 19:30:19
4	Yi-Min Seah	0.11 s	Python 3	2022-02-19 15:09:14
5	Guy Wilks	0.11 s	Python 3	2023-01-31 02:44:09
6	Andras Zolyomi	0.11 s	Python 3	2023-02-06 23:54:53
7	Giorgio Micaletto	0.11 s	Python 3	2024-10-12 09:37:32
8	Jed Yang	0.11 s	Python 3	2025-01-03 01:19:57
9	Hidden user	0.11 s	Python 3	2025-05-30 23:51:43
10	Dhanaprakash D	0.11 s	Python 3	2025-06-16 15:58:34

#	User	Runtime	Language	Date
1	Ivy Wang	1.69 s	Ruby	2023-02-01 19:58:03

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-09-28 11:57:49
2	Erin Staugaard	0.01 s	Rust	2024-09-22 13:35:28
3	Minghao Zhang	0.02 s	Rust	2024-05-30 02:12:55
4	Adam Guangwei Yu	0.03 s	Rust	2023-02-01 00:34:47
5	Jianghua Wang	0.03 s	Rust	2023-02-01 22:15:19
6	Ryan Chau	0.03 s	Rust	2023-02-08 03:46:46
7	Petter Daae	0.10 s	Rust	2020-03-21 22:13:10

#	User	Length	Language	Date
1	Haobo Jiang	1507	C	2016-01-02 12:02:26
2	Bergur Snorrason	3289	C	2020-03-04 09:11:38
3	Ivan Petrov	7505	C	2019-04-30 08:10:40
4	Erin Staugaard	16718	C	2023-05-07 11:34:23

#	User	Length	Language	Date
1	Edvin Mako	2786	C#	2020-02-13 14:52:22

#	User	Length	Language	Date
1	Alexander Skidanov	1080	C++	2025-10-08 22:50:20
2	Yeung Man Tsung	1142	C++	2023-02-06 15:06:53
3	Lim An Jun	1180	C++	2023-02-07 06:00:11
4	Dexter Kwan	1215	C++	2023-02-10 14:12:05
5	鄭博文	1216	C++	2023-03-04 02:01:36
6	Johan Wind	1221	C++	2019-03-03 16:45:12
7	Wesley Hung	1242	C++	2023-02-01 05:34:15
8	Noah Weninger	1245	C++	2020-12-28 03:27:27
9	Royce Nguyen	1249	C++	2023-02-10 06:25:26
10	Ashutosh Tripathi	1286	C++	2020-07-27 21:03:08

#	User	Length	Language	Date
1	Norbert Voelker	1366	Go	2023-03-10 10:07:45
2	Hidden user	2745	Go	2015-10-01 17:01:40

#	User	Length	Language	Date
1	Fabian Mitterwallner	968	Haskell	2025-10-23 20:06:22
2	Udo Stenzel	1063	Haskell	2023-05-06 22:13:38
3	Soumik Sarkar	1408	Haskell	2023-05-27 16:06:48
4	Steinar Simonnes	1672	Haskell	2025-02-06 09:14:02
5	Jonas Stendahl	1696	Haskell	2016-05-07 10:31:07
6	Brent Yorgey	2064	Haskell	2020-04-29 10:28:16
7	Stian	2295	Haskell	2020-02-11 14:32:10
8	Filippo Sestini	2333	Haskell	2023-06-06 15:27:36
9	TJ Takei	3854	Haskell	2025-09-14 07:49:38
10	Erin Staugaard	11072	Haskell	2023-05-06 19:12:36

#	User	Length	Language	Date
1	Jason Sun	1584	Java	2017-11-02 02:56:08
2	Olav Røthe Bakken	1631	Java	2020-02-04 13:55:55
3	Doug Goodman	1732	Java	2018-07-09 20:41:03
4	Andrew Polizzotto	1882	Java	2020-05-26 08:09:24
5	Josenildo Silva	1907	Java	2017-05-10 03:00:31
6	Mohammad Naufal Hazim Bin Saharudin	1938	Java	2025-06-11 08:55:46
7	Andrew Kennedy	2003	Java	2018-09-12 04:42:17
8	Hidden user	2109	Java	2018-01-30 06:24:16
9	Thomas Rooijakkers	2172	Java	2016-10-03 19:16:35
10	Marco Troltsch	2242	Java	2016-06-08 18:57:12

#	User	Length	Language	Date
1	kattis@griffinht.com	1979	JavaScript (Node.js)	2024-11-11 23:14:14

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	1166	JavaScript (SpiderMonkey)	2023-07-23 19:01:44
2	Bjørn Chr. Soltvedt	1309	JavaScript (SpiderMonkey)	2016-08-24 23:01:08

#	User	Length	Language	Date
1	Benjamin Ye	1406	Kotlin	2023-02-03 05:54:54
2	Ditlef Alexander Diseth	6135	Kotlin	2020-02-13 15:04:28

#	User	Length	Language	Date
1	Andriy Zyevakov	2769	Prolog	2016-10-16 15:21:05

#	User	Length	Language	Date
1	Hidden user	711	Python 2	2019-10-04 22:34:21
2	Andreas Björklund	917	Python 2	2020-04-10 10:59:47
3	Nick Wu	1035	Python 2	2015-10-19 01:38:16
4	Anton Lyxell	1158	Python 2	2019-11-16 12:29:27
5	Asger Hautop Drewsen	1231	Python 2	2015-11-02 16:51:39
6	Jonas Kylling	1238	Python 2	2015-09-17 16:57:52
7	Alvaro Silvino	12294	Python 2	2016-04-18 22:02:55

#	User	Length	Language	Date
1	Benjamin Z White	433	Python 3	2023-07-22 15:15:06
2	Peter Stauder	483	Python 3	2023-02-12 07:48:06
3	Christofer Ohlsson	619	Python 3	2023-03-28 14:07:55
4	Kelly Dance	640	Python 3	2023-07-30 09:39:31
5	Anshuman Dash	652	Python 3	2023-01-31 04:34:33
6	Ludo Pulles	705	Python 3	2017-03-26 15:50:06
7	Oskar Haarklou Veileborg	924	Python 3	2021-04-20 18:54:13
8	Prateek Bhakta	943	Python 3	2021-11-11 22:40:42
9	Daniel Lokshtanov	954	Python 3	2023-01-31 02:54:28
10	Shashank Bhatt	980	Python 3	2023-07-22 23:39:25

#	User	Length	Language	Date
1	Ivy Wang	1259	Ruby	2023-02-01 19:58:03

#	User	Length	Language	Date
1	Jianghua Wang	1013	Rust	2023-02-01 22:19:59
2	Minghao Zhang	1724	Rust	2024-05-30 02:08:18
3	Ryan Chau	1912	Rust	2023-02-08 03:46:46
4	Adam Guangwei Yu	2346	Rust	2023-02-01 06:40:16
5	Petter Daae	2494	Rust	2020-03-21 22:05:35
6	Erin Staugaard	13061	Rust	2024-09-22 13:35:28
7	Vincent Lagerros	18457	Rust	2024-09-28 11:53:29

Solution running time distribution