Problem I
Imperial Measurement — Problem Statistics

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Submissions	4109
Accepted submissions	1535
Submission ratio	37.36%
Authors	1411
Full solves [?]	1295
Full solve Ratio	91.78%

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2025-02-23 18:14:25

#	User	Runtime	Language	Date
1	masosz	0.02 s	C#	2015-01-26 22:36:43
2	Mads Storm Hansen	0.02 s	C#	2015-07-18 23:55:49
3	Faisal Rahman	0.02 s	C#	2016-01-14 00:27:20
4	Yuwono Bangun Nagoro	0.02 s	C#	2016-06-21 22:20:23
5	Wong Hoe Cheong	0.02 s	C#	2016-08-11 08:27:55
6	IS8	0.02 s	C#	2016-08-11 09:03:06
7	Hidden user	0.02 s	C#	2017-06-17 23:40:23
8	Klas af Geijerstam	0.02 s	C#	2017-07-06 19:30:45
9	Sampath Vuyyuru	0.02 s	C#	2017-12-09 12:57:46
10	Ігор Бац	0.02 s	C#	2017-12-11 20:50:30

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2020-06-28 04:05:04

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-10-19 19:01:44

#	User	Runtime	Language	Date
1	Oskar Johanson	0.07 s	Go	2019-10-12 10:10:39
2	Ian Howell	0.08 s	Go	2021-02-05 23:20:33
3	Norbert Voelker	0.08 s	Go	2021-05-08 19:19:02

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2015-01-05 12:13:37
2	Brent Yorgey	0.00 s	Haskell	2017-10-04 03:32:07
3	Olle Eriksson	0.00 s	Haskell	2017-12-01 00:53:38
4	Ian Clement	0.00 s	Haskell	2020-07-05 22:40:41
5	Ng Tek In	0.00 s	Haskell	2022-08-15 18:05:23
6	Jim O'Brien	0.01 s	Haskell	2019-05-10 08:00:48
7	Hidden user	0.01 s	Haskell	2019-09-02 22:00:06
8	Thorbjørn Melheim	0.01 s	Haskell	2020-12-18 03:20:16
9	Jan Hrček	0.01 s	Haskell	2021-03-17 11:19:45
10	Steinar Simonnes	0.01 s	Haskell	2024-02-12 15:21:59

#	User	Runtime	Language	Date
1	Daniel Bernstein	0.05 s	Java	2011-10-06 02:20:03
2	Anders Hagward	0.05 s	Java	2011-11-08 13:19:39
3	Simon Klein	0.05 s	Java	2012-01-11 12:51:23
4	Daniel Forsman	0.05 s	Java	2014-10-03 16:21:23
5	Patrik Hörnqvist	0.05 s	Java	2015-06-25 20:16:53
6	Dennis Ang	0.05 s	Java	2015-09-24 12:01:05
7	Pål Forsberg	0.05 s	Java	2015-10-07 18:50:50
8	Cameron Otts	0.05 s	Java	2015-11-01 23:18:20
9	Nick Wu	0.05 s	Java	2015-11-08 00:35:31
10	Brandon Morris	0.05 s	Java	2015-12-15 14:33:42

#	User	Runtime	Language	Date
1	Theodor Greholm	0.05 s	JavaScript (Node.js)	2019-02-25 10:05:49
2	Benford Tan	0.05 s	JavaScript (Node.js)	2019-04-11 10:04:22
3	Nitin Saini	0.05 s	JavaScript (Node.js)	2024-03-10 17:25:40
4	Harshada Mulye	0.09 s	JavaScript (Node.js)	2022-02-06 00:06:31
5	Samuel Högfeldt	0.09 s	JavaScript (Node.js)	2022-08-04 17:10:48
6	Slawomir Malusecki	0.09 s	JavaScript (Node.js)	2022-10-10 01:34:43
7	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-24 19:12:58
8	Chris Wong	0.42 s	JavaScript (Node.js)	2022-01-30 20:57:08
9	Maria	0.42 s	JavaScript (Node.js)	2022-03-16 06:39:34

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-28 19:40:52
2	Mark Bouchkevitch	0.01 s	JavaScript (SpiderMonkey)	2016-01-23 19:54:45
3	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-02-27 03:41:07
4	Lin Lee	0.01 s	JavaScript (SpiderMonkey)	2016-07-17 09:17:46
5	Wong Hoe Cheong	0.01 s	JavaScript (SpiderMonkey)	2016-08-11 05:02:06
6	IS8	0.01 s	JavaScript (SpiderMonkey)	2016-08-11 07:15:49
7	CC8	0.01 s	JavaScript (SpiderMonkey)	2016-08-11 09:20:06
8	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-10-11 14:56:42
9	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-22 20:12:52
10	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-08-02 20:27:35

#	User	Runtime	Language	Date
1	Timothy Gaede	0.59 s	Julia	2024-03-26 06:43:12

#	User	Runtime	Language	Date
1	Bradley Richards	0.17 s	Kotlin	2023-03-23 10:54:39
2	Neil Harmon	0.19 s	Kotlin	2019-06-17 11:06:20
3	Dayan Ruben Gonzalez	0.19 s	Kotlin	2020-10-05 22:02:57
4	Adam Rankin	0.19 s	Kotlin	2023-05-05 21:15:18
5	Troy Warmboe	0.22 s	Kotlin	2020-02-20 03:25:37

#	User	Runtime	Language	Date
1	Brandon Tang	0.00 s	OCaml	2023-07-17 04:28:52
2	Gabriella Gloria	0.00 s	OCaml	2025-05-07 18:17:26

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2021-07-11 09:50:47

#	User	Runtime	Language	Date
1	cojonas1	0.01 s	PHP	2021-04-08 15:08:55
2	Renate	0.01 s	PHP	2022-08-09 01:08:47

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2019-05-18 11:09:13
2	Hakan Kjellerstrand	0.02 s	Prolog	2023-03-01 21:34:32

#	User	Runtime	Language	Date
1	Ingibergur Sindri Stefnisson	0.02 s	Python 2	2014-11-30 20:20:51
2	Paulo Bu	0.02 s	Python 2	2015-01-29 21:17:38
3	Christofer Ohlsson	0.02 s	Python 2	2015-04-02 22:09:37
4	Erik Odenman	0.02 s	Python 2	2015-05-15 01:11:39
5	Johannes Agestam	0.02 s	Python 2	2015-08-19 10:45:25
6	Izzati Al Vandiar	0.02 s	Python 2	2015-11-09 06:40:51
7	Neal Zane	0.02 s	Python 2	2016-07-05 23:46:40
8	Jennie Olsson	0.02 s	Python 2	2016-07-11 13:32:42
9	Min Lim	0.02 s	Python 2	2016-08-11 04:57:57
10	Frederik Højholt	0.02 s	Python 2	2016-12-06 17:50:36

#	User	Runtime	Language	Date
1	Brian Harrington	0.02 s	Python 3	2014-09-13 19:37:22
2	Johannes Agestam	0.02 s	Python 3	2015-08-19 10:43:57
3	Tomaž Kramer	0.02 s	Python 3	2015-08-19 11:13:08
4	Wayne	0.02 s	Python 3	2016-02-01 11:32:42
5	Kent Tsuenchy	0.02 s	Python 3	2016-02-09 00:26:13
6	Magnus Thomé	0.02 s	Python 3	2016-04-19 16:26:46
7	Hidden user	0.02 s	Python 3	2016-05-14 18:12:21
8	Jack Rosenthal	0.02 s	Python 3	2016-06-29 22:58:52
9	Nathan Collins	0.02 s	Python 3	2016-07-06 14:59:14
10	Nicolas Marsceau	0.02 s	Python 3	2016-07-06 16:22:16

#	User	Runtime	Language	Date
1	Macdara mac an tSionnaigh	0.04 s	Ruby	2019-09-14 17:41:00
2	Kok Dith	0.05 s	Ruby	2021-08-25 11:41:21
3	Thomas Feld	0.06 s	Ruby	2023-08-18 15:55:37
4	Alexander Bilde Pedersen	0.06 s	Ruby	2023-09-18 18:05:58

#	User	Runtime	Language	Date
1	Adrian Hornung	0.00 s	Rust	2019-10-22 21:45:41
2	Eric Pinter	0.00 s	Rust	2021-10-16 02:56:40
3	Isak Jägberg	0.00 s	Rust	2022-01-01 23:20:34
4	Bas Dirks	0.00 s	Rust	2022-02-23 08:51:52
5	Marcus Grymmare	0.00 s	Rust	2024-08-30 22:49:49
6	Vincent Lagerros	0.00 s	Rust	2024-12-29 05:03:55
7	Will	0.00 s	Rust	2025-02-11 22:02:12

#	User	Length	Language	Date
1	Danny Robinson	234	Bash	2025-02-23 18:14:25

#	User	Length	Language	Date
1	Leslie Yip	725	C	2022-08-31 07:14:57
2	Bao Nguyen	975	C	2025-01-30 16:54:52
3	Ajax Scott	1013	C	2017-01-12 07:07:39
4	daimiao chen	1018	C	2024-03-13 03:40:14
5	Hidden user	1065	C	2017-12-06 20:55:59
6	Andrew Roberts	1080	C	2017-09-21 07:02:51
7	Hidden user	1162	C	2017-09-09 13:20:08
8	Houssam ElBouanani	1170	C	2017-09-09 22:01:40
9	Ivan Petrov	1532	C	2019-09-16 13:55:46
10	Julian Duniec	1573	C	2023-01-03 16:53:39

#	User	Length	Language	Date
1	Armin Krauss	794	C#	2018-11-08 21:56:01
2	Hidden user	1007	C#	2017-06-17 23:40:23
3	Thomas Norris	1019	C#	2019-11-07 16:23:59
4	Göran Andersson	1290	C#	2022-05-19 11:26:46
5	Robert van Horst	1380	C#	2024-08-05 19:11:08
6	Adrian Bay Dorph	1389	C#	2022-01-29 13:21:42
7	Robin Rahm	1395	C#	2022-11-26 12:47:53
8	Jesper Storberg	1406	C#	2022-12-09 23:49:07
9	Niklas Olsson	1418	C#	2020-12-10 23:29:04
10	Nikolai Valkamo	1551	C#	2021-12-22 17:58:50

#	User	Length	Language	Date
1	Frans Meulenbroeks	304	C++	2024-10-29 17:57:11
2	Tyler Fernando	427	C++	2022-11-05 14:43:35
3	Antonio Molina Lovett	506	C++	2016-08-09 08:37:42
4	Zane Yu	507	C++	2019-01-09 12:32:45
5	Julian Neeleman	512	C++	2017-05-16 17:46:19
6	Robert Alonso	528	C++	2016-01-21 03:07:30
7	Yusan Leung Liu	529	C++	2015-11-04 19:33:35
8	Joel Au	533	C++	2020-05-14 10:06:04
9	Frederick Pek	540	C++	2021-06-14 16:34:13
10	Hua Fan Cai	556	C++	2016-01-21 02:28:49

#	User	Length	Language	Date
1	David Cawthon	1117	Common Lisp	2020-06-28 04:05:04

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1631	F#	2022-10-19 19:01:44

#	User	Length	Language	Date
1	Ian Howell	796	Go	2021-02-05 23:20:33
2	Norbert Voelker	959	Go	2021-05-08 19:19:02
3	Oskar Johanson	4413	Go	2019-10-12 10:10:39

#	User	Length	Language	Date
1	Olle Eriksson	579	Haskell	2017-12-01 01:01:44
2	Steinar Simonnes	584	Haskell	2024-02-12 15:21:59
3	Brent Yorgey	1047	Haskell	2017-10-04 03:32:07
4	Thorbjørn Melheim	1101	Haskell	2020-12-18 03:20:16
5	Jim O'Brien	1354	Haskell	2019-05-10 08:00:48
6	Ng Tek In	1568	Haskell	2022-08-15 18:05:23
7	Jan Hrček	1636	Haskell	2021-03-17 11:19:45
8	Ian Clement	2581	Haskell	2020-07-05 22:40:41
9	Hidden user	3786	Haskell	2015-01-05 12:13:37
10	Hidden user	5622	Haskell	2019-09-02 22:00:06

#	User	Length	Language	Date
1	Doug Goodman	684	Java	2018-01-02 21:10:01
2	Nurain Jiwani	719	Java	2024-02-10 23:25:50
3	Zemzgui Youness	804	Java	2018-08-24 18:49:48
4	Caeden Whitaker	807	Java	2020-10-13 06:06:32
5	Ben Blodgett	826	Java	2024-12-06 03:00:54
6	Logan Simon	831	Java	2019-09-13 02:15:27
7	Isaak Coleman	838	Java	2020-04-10 21:16:09
8	Simon Xue	860	Java	2015-11-12 06:22:14
9	Samuel Klingström	909	Java	2017-05-09 18:17:47
10	Joel Augustine	940	Java	2020-07-25 20:35:26

#	User	Length	Language	Date
1	Samuel Högfeldt	880	JavaScript (Node.js)	2022-08-04 17:10:48
2	Theodor Greholm	899	JavaScript (Node.js)	2019-02-25 10:05:49
3	Slawomir Malusecki	985	JavaScript (Node.js)	2022-10-10 01:34:43
4	Maria	1220	JavaScript (Node.js)	2022-03-16 06:39:34
5	Harshada Mulye	1236	JavaScript (Node.js)	2022-02-06 00:06:31
6	Chris Wong	1364	JavaScript (Node.js)	2022-01-30 20:57:08
7	Andoko Chandra	1403	JavaScript (Node.js)	2020-10-24 19:12:58
8	Benford Tan	1567	JavaScript (Node.js)	2019-04-11 10:04:22
9	Nitin Saini	1935	JavaScript (Node.js)	2024-03-10 17:35:20

#	User	Length	Language	Date
1	Jimmy Gustafsson	223	JavaScript (SpiderMonkey)	2024-08-02 20:27:35
2	Christian Cederquist	387	JavaScript (SpiderMonkey)	2023-01-22 20:12:52
3	Bjørn Chr. Soltvedt	468	JavaScript (SpiderMonkey)	2016-02-27 03:41:07
4	Peter Kedemo	558	JavaScript (SpiderMonkey)	2015-12-28 19:40:52
5	IS8	593	JavaScript (SpiderMonkey)	2016-08-11 07:15:49
6	Peter Menyes	689	JavaScript (SpiderMonkey)	2021-10-11 14:56:42
7	Mark Bouchkevitch	734	JavaScript (SpiderMonkey)	2016-01-23 19:54:45
8	Wong Hoe Cheong	913	JavaScript (SpiderMonkey)	2016-08-11 05:02:06
9	Lin Lee	951	JavaScript (SpiderMonkey)	2016-07-17 09:46:36
10	CC8	1649	JavaScript (SpiderMonkey)	2016-08-11 09:20:06

#	User	Length	Language	Date
1	Timothy Gaede	551	Julia	2024-03-26 06:43:12

#	User	Length	Language	Date
1	Bradley Richards	521	Kotlin	2023-03-23 10:54:39
2	Adam Rankin	771	Kotlin	2023-05-05 21:15:18
3	Dayan Ruben Gonzalez	1017	Kotlin	2020-10-05 22:02:57
4	Troy Warmboe	1153	Kotlin	2020-02-20 03:25:37
5	Neil Harmon	1409	Kotlin	2019-06-17 11:06:20

#	User	Length	Language	Date
1	Brandon Tang	1496	OCaml	2023-07-17 04:28:52
2	Gabriella Gloria	2047	OCaml	2025-05-07 18:17:26

#	User	Length	Language	Date
1	Ingemar Ragnemalm	3062	Pascal	2021-07-11 09:50:47

#	User	Length	Language	Date
1	Renate	474	PHP	2022-08-09 01:08:47
2	cojonas1	1218	PHP	2021-04-08 15:08:55

#	User	Length	Language	Date
1	Hakan Kjellerstrand	436	Prolog	2023-03-01 21:47:05
2	Andriy Zyevakov	2775	Prolog	2019-05-18 11:09:13

#	User	Length	Language	Date
1	Thomas Feld	305	Python 2	2019-09-10 14:11:16
2	Guan Yang Ze	359	Python 2	2019-12-03 20:50:38
3	Godmar Back	374	Python 2	2019-01-09 20:10:47
4	Hans Rusten	405	Python 2	2015-11-29 13:22:22
5	Erik Odenman	419	Python 2	2015-05-15 01:11:39
6	Çağdaş Öztekin	428	Python 2	2017-09-19 01:59:47
7	Jesper Öqvist	431	Python 2	2018-10-26 17:37:55
8	Johan Lyts	448	Python 2	2019-07-07 15:01:39
9	Andreas Björklund	466	Python 2	2019-09-19 22:18:06
10	Cole Bite	502	Python 2	2017-05-09 21:03:44

#	User	Length	Language	Date
1	Nguyên Khôi Đỗ	149	Python 3	2025-05-30 01:36:52
2	Thibault Raffaillac	173	Python 3	2024-07-28 23:24:41
3	Frans Meulenbroeks	184	Python 3	2024-10-29 18:41:11
4	Jason Clarke	201	Python 3	2024-01-23 18:07:13
5	Frank Shin	205	Python 3	2021-05-30 22:05:30
6	Charles Ancheta	229	Python 3	2023-03-17 05:46:58
7	Paul Swingle	234	Python 3	2022-12-13 16:49:40
8	Tai Tze Kin	270	Python 3	2024-05-06 11:08:02
9	Henrik Hallbert	303	Python 3	2020-10-08 12:33:29
10	Tistou	307	Python 3	2022-04-30 01:51:09

#	User	Length	Language	Date
1	Thomas Feld	147	Ruby	2023-08-18 15:55:37
2	Alexander Bilde Pedersen	273	Ruby	2023-09-18 18:05:58
3	Kok Dith	552	Ruby	2021-08-25 11:41:21
4	Macdara mac an tSionnaigh	701	Ruby	2019-09-14 17:41:00

#	User	Length	Language	Date
1	Vincent Lagerros	767	Rust	2024-12-29 05:03:55
2	Will	1638	Rust	2025-02-11 22:02:12
3	Eric Pinter	1711	Rust	2021-10-16 02:56:40
4	Marcus Grymmare	2037	Rust	2024-08-30 22:49:49
5	Adrian Hornung	2154	Rust	2019-10-22 22:29:21
6	Isak Jägberg	2340	Rust	2022-01-01 23:20:34
7	Bas Dirks	4015	Rust	2022-02-23 08:51:52

Solution running time distribution