Problem I
Scaling Recipes — Problem Statistics

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Submissions	4437
Accepted submissions	1818
Submission ratio	40.97%
Authors	1523
Full solves [?]	1438
Full solve Ratio	94.42%

#	User	Runtime	Language	Date
1	Đào Thanh Duy	0.02 s	C	2016-03-07 23:48:00
2	Nhật Anh Võ Nguyễn	0.02 s	C	2016-03-08 03:42:04
3	Nguyễn Hoàng	0.02 s	C	2016-03-08 14:25:17
4	Tran Quang Kha	0.02 s	C	2016-03-09 03:50:25
5	Vuong Thieu Huy	0.02 s	C	2016-03-09 05:41:08
6	BuildBlocks	0.02 s	C	2016-03-17 05:19:57
7	Moaz Mahmud	0.02 s	C	2016-03-17 06:13:43
8	Paul Gunawan	0.02 s	C	2016-08-04 22:19:27
9	Syed Abdullah	0.02 s	C	2017-01-16 16:19:45
10	Jón Steinn Elíasson	0.02 s	C	2017-07-08 11:48:39

#	User	Runtime	Language	Date
1	Alfred Kristal Ern	0.06 s	C#	2023-11-30 21:20:56
2	Duelene Olson	0.08 s	C#	2016-12-16 01:56:18
3	Andrzej Krajniak	0.09 s	C#	2017-07-26 16:08:02
4	Sofia Hansson	0.09 s	C#	2023-04-18 06:48:14
5	Sofia Hansson	0.09 s	C#	2023-04-18 07:18:05
6	Sano Gharzani	0.09 s	C#	2023-12-01 16:51:04
7	Jesper Sandberg	0.09 s	C#	2024-04-24 13:00:00
8	Stephen Odhiambo	0.10 s	C#	2023-09-22 14:57:17
9	Ruan van Schalkwyk	0.10 s	C#	2023-10-20 18:03:02
10	Gregory Sinclair	0.10 s	C#	2023-11-19 21:20:43

#	User	Runtime	Language	Date
1	Grae Yeandle	0.01 s	C++	2016-12-02 10:58:23
2	Alexander Kravberg	0.01 s	C++	2021-12-19 23:49:18
3	Tianyi Chen	0.02 s	C++	2015-11-26 10:50:15
4	CholRyong Jong	0.02 s	C++	2015-12-06 01:13:43
5	Lê Khắc Hồng Phúc	0.02 s	C++	2016-03-07 18:35:30
6	Thành Hưng	0.02 s	C++	2016-03-08 07:20:08
7	Đinh Phạm Đăng Khoa	0.02 s	C++	2016-03-08 08:11:48
8	Steven Halim	0.02 s	C++	2016-03-13 16:02:26
9	Hidden user	0.02 s	C++	2016-03-17 03:20:48
10	Kazi Hasan Zubaer	0.02 s	C++	2016-03-17 03:54:47

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.17 s	F#	2022-09-15 19:14:34

#	User	Runtime	Language	Date
1	Magix	0.08 s	Go	2020-09-17 08:28:22
2	Neal McCarthy	0.09 s	Go	2018-10-28 20:11:27
3	Diamond	0.10 s	Go	2022-11-05 02:36:21
4	Norbert Voelker	0.16 s	Go	2021-04-20 22:38:13
5	Ian Howell	1.16 s	Go	2019-07-19 16:43:37

#	User	Runtime	Language	Date
1	Isaac Arvestad	0.11 s	Haskell	2018-11-23 18:19:55
2	Hidden user	0.14 s	Haskell	2023-01-17 18:40:48
3	Steinar Simonnes	0.14 s	Haskell	2024-01-31 16:33:26
4	Caleb Surovik	0.16 s	Haskell	2021-07-13 00:43:59
5	Jan Hrček	0.18 s	Haskell	2020-11-09 17:09:06
6	Hidden user	0.19 s	Haskell	2019-08-28 11:27:43
7	Patrik Lilja	0.22 s	Haskell	2016-02-14 10:07:38
8	Brent Yorgey	0.27 s	Haskell	2017-10-22 21:38:49

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.20 s	Java	2021-10-30 09:30:24
2	Charlie Zheng	0.23 s	Java	2018-10-18 00:59:15
3	Guillaume Wery	0.25 s	Java	2018-12-18 17:26:50
4	Martijn Muijsers	0.26 s	Java	2016-10-05 13:11:01
5	Robert Slutsky	0.26 s	Java	2017-04-13 18:41:41
6	José Vander Meulen	0.26 s	Java	2018-09-16 18:05:21
7	Hidden user	0.26 s	Java	2018-10-21 11:11:12
8	Igor Durovic	0.27 s	Java	2017-11-02 03:06:36
9	Ozturk Ekrem	0.27 s	Java	2018-11-24 16:22:04
10	Aldo Chow	0.28 s	Java	2017-08-14 03:11:01

#	User	Runtime	Language	Date
1	Filip Sanderfelt	0.19 s	JavaScript (Node.js)	2023-02-04 14:13:03
2	Adam Gustafsson	0.24 s	JavaScript (Node.js)	2025-11-13 18:46:54
3	Keisha Marie Dy Zapra	0.35 s	JavaScript (Node.js)	2022-09-20 09:55:24
4	Kliver Daniel	0.40 s	JavaScript (Node.js)	2022-08-14 21:32:16
5	Andreas Cedervall	0.51 s	JavaScript (Node.js)	2019-12-11 11:15:56
6	Chris Wong	0.54 s	JavaScript (Node.js)	2021-03-03 03:05:49
7	Andoko Chandra	0.57 s	JavaScript (Node.js)	2020-10-11 12:50:08
8	Shreyas T	0.66 s	JavaScript (Node.js)	2020-09-25 14:23:40
9	Michael Zetterholm	0.67 s	JavaScript (Node.js)	2020-09-28 11:14:18
10	Mehdi Nassim KHODJA	0.68 s	JavaScript (Node.js)	2021-02-12 16:55:41

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.05 s	JavaScript (SpiderMonkey)	2016-03-07 01:06:41
2	Tor Nordqvist	0.05 s	JavaScript (SpiderMonkey)	2016-11-14 12:25:49
3	Peter Kedemo	0.07 s	JavaScript (SpiderMonkey)	2016-01-01 12:16:37
4	Gabriel Lau	0.07 s	JavaScript (SpiderMonkey)	2016-03-29 01:42:23
5	Marcus Ramse	0.07 s	JavaScript (SpiderMonkey)	2016-04-30 09:54:18
6	Peter Menyes	0.07 s	JavaScript (SpiderMonkey)	2021-08-24 10:52:40
7	Jimmy Gustafsson	0.08 s	JavaScript (SpiderMonkey)	2022-06-18 21:17:56
8	Eva Olausson	0.09 s	JavaScript (SpiderMonkey)	2021-05-29 20:29:03
9	Christian Pilegaard Cederquist	0.09 s	JavaScript (SpiderMonkey)	2023-01-13 13:35:54
10	Yaser Rahmati	0.12 s	JavaScript (SpiderMonkey)	2019-09-10 21:43:10

#	User	Runtime	Language	Date
1	Timothy Gaede	0.86 s	Julia	2024-04-30 14:23:32

#	User	Runtime	Language	Date
1	Jacob Huebner	0.46 s	Kotlin	2020-02-26 01:29:52
2	Adam Rankin	0.61 s	Kotlin	2023-05-10 19:22:31
3	Emil Wihlander	0.64 s	Kotlin	2023-07-27 13:10:31
4	Troy Warmboe	0.85 s	Kotlin	2020-02-14 23:23:44
5	Nicolas Woolrich	0.85 s	Kotlin	2021-12-10 03:51:21
6	Einar Kjellback	0.86 s	Kotlin	2020-01-19 19:24:05
7	J Z	0.89 s	Kotlin	2018-06-17 06:53:47
8	Fubin Luan	0.90 s	Kotlin	2018-06-17 04:44:35
9	Matt Iverson	0.91 s	Kotlin	2018-09-23 17:10:17
10	Bradley Richards	0.92 s	Kotlin	2023-03-16 14:45:15

#	User	Runtime	Language	Date
1	Brandon Tang	0.03 s	OCaml	2023-07-17 03:59:47

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.41 s	Pascal	2018-02-07 12:59:00

#	User	Runtime	Language	Date
1	Renate	0.02 s	PHP	2021-11-13 23:37:05
2	jonathan Edfeldt	0.05 s	PHP	2020-11-12 22:51:17
3	Peter van Zyl	0.06 s	PHP	2025-07-12 15:00:27
4	Susanne Ragnemalm	0.09 s	PHP	2024-05-13 16:44:47

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.20 s	Prolog	2023-02-26 07:20:29
2	Andriy Zyevakov	0.64 s	Prolog	2018-11-21 16:09:51

#	User	Runtime	Language	Date
1	Andrei Stoica	0.06 s	Python 2	2017-11-29 20:55:19
2	Hasan Kalzi	0.07 s	Python 2	2022-06-18 20:41:59
3	Frederik Højholt	0.08 s	Python 2	2016-12-03 11:06:09
4	Scott Handelman	0.09 s	Python 2	2016-04-23 00:04:27
5	Maksym Bendeberia	0.09 s	Python 2	2016-10-25 10:58:53
6	Logan Su	0.10 s	Python 2	2016-10-22 18:02:12
7	Godmar Back	0.10 s	Python 2	2016-10-23 01:40:39
8	Tomas Alvarez	0.10 s	Python 2	2017-05-08 22:07:57
9	Çağdaş Öztekin	0.10 s	Python 2	2017-09-08 11:03:45
10	Johann Ly	0.10 s	Python 2	2018-11-07 07:10:28

#	User	Runtime	Language	Date
1	Wayne	0.05 s	Python 3	2016-02-17 19:18:40
2	K Lin	0.05 s	Python 3	2019-08-30 09:08:46
3	Ram Basnet	0.06 s	Python 3	2017-04-28 02:28:47
4	Subramanian Ramasamy	0.06 s	Python 3	2019-08-24 01:57:54
5	Samuel Grahn	0.06 s	Python 3	2019-11-04 13:19:19
6	Hidden user	0.07 s	Python 3	2015-11-22 20:16:32
7	Mikael Hedin	0.07 s	Python 3	2015-11-24 10:52:03
8	Magnus Thomé	0.07 s	Python 3	2016-05-17 13:09:48
9	Dennis Svedberg	0.07 s	Python 3	2017-05-20 21:53:49
10	mike	0.07 s	Python 3	2018-11-07 16:44:14

#	User	Runtime	Language	Date
1	Erik Rydbert	0.08 s	Ruby	2016-08-08 10:07:05
2	Hidden user	0.10 s	Ruby	2021-11-03 18:43:18
3	Russell Ng	0.11 s	Ruby	2025-06-08 09:34:53
4	Eleanor Janine Juan	0.12 s	Ruby	2025-03-01 14:10:33
5	Thomas Feld	0.13 s	Ruby	2022-11-25 10:08:02

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-06-05 23:35:35
2	Sebastian Thiel	0.01 s	Rust	2018-11-04 15:54:11
3	Andrea Cattaneo	0.01 s	Rust	2024-04-06 19:05:16
4	Aaron Lengyel	0.02 s	Rust	2022-10-30 19:05:57
5	Viktor Palm	0.03 s	Rust	2022-05-23 18:56:32
6	Kok Dith	0.04 s	Rust	2021-08-17 01:40:28
7	David Rasch	0.04 s	Rust	2021-11-02 17:15:26
8	Isak Jägberg	0.04 s	Rust	2024-10-19 21:32:23
9	Pankajkumar Patro	0.04 s	Rust	2024-11-01 14:45:02
10	Adam Henriksson	0.04 s	Rust	2025-03-29 20:09:40

#	User	Length	Language	Date
1	Martin Blom	320	C	2024-07-18 13:04:08
2	Stiff	624	C	2021-05-29 08:04:07
3	Moaz Mahmud	697	C	2016-03-17 06:13:43
4	Nhật Anh Võ Nguyễn	768	C	2016-03-08 03:42:04
5	Tran Quang Kha	800	C	2016-03-09 03:50:25
6	Zhuqi	801	C	2022-06-26 10:32:46
7	Warren Mazmur	828	C	2019-09-19 09:02:44
8	Mirel Cosulschi	829	C	2025-04-03 10:26:33
9	Jón Steinn Elíasson	831	C	2017-07-08 11:48:39

#	User	Length	Language	Date
1	Gregory Sinclair	453	C#	2023-11-19 21:20:43
2	Thomas Norris	984	C#	2019-10-18 20:12:07
3	Eric Weiss	1421	C#	2022-07-08 19:49:29
4	Carl Davidsson	1532	C#	2023-12-25 11:42:43
5	Fredrik Widén	1533	C#	2023-11-24 09:17:22
6	Göran Andersson	1605	C#	2022-05-14 18:34:08
7	Sofia Hansson	1626	C#	2023-04-18 06:48:14
8	Christian Bjernersjö	1686	C#	2020-12-05 18:15:19
9	Max Hansen	1718	C#	2022-05-28 16:33:28
10	Amanda Borg	1730	C#	2023-12-08 12:19:54

#	User	Length	Language	Date
1	Chuck Fernández	515	C++	2016-04-18 18:51:07
2	Antonio Molina Lovett	517	C++	2016-08-09 06:18:12
3	Johan Wind	520	C++	2015-11-26 11:13:24
4	吳宗達	532	C++	2017-10-13 11:31:23
5	Dimitrios Rontogiannis	549	C++	2018-03-17 18:51:02
6	Zane Yu	555	C++	2018-12-18 10:54:49
7	William Gan	574	C++	2017-01-12 04:01:25
8	Frederick Pek	579	C++	2021-06-06 18:51:05
9	Li Yao'an	586	C++	2017-01-12 02:51:58
10	人外沙耶	601	C++	2020-06-06 03:01:00

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1839	F#	2022-09-15 19:14:34

#	User	Length	Language	Date
1	Ian Howell	1147	Go	2019-07-19 16:43:37
2	Norbert Voelker	1390	Go	2021-04-20 22:38:13
3	Diamond	1775	Go	2022-11-05 02:36:21
4	Neal McCarthy	1835	Go	2018-10-28 20:11:27
5	Magix	2399	Go	2020-09-17 08:11:01

#	User	Length	Language	Date
1	Steinar Simonnes	773	Haskell	2024-01-31 16:33:26
2	Hidden user	1008	Haskell	2023-01-17 18:40:48
3	Patrik Lilja	1141	Haskell	2016-02-14 10:07:38
4	Hidden user	1237	Haskell	2019-08-28 11:27:43
5	Caleb Surovik	1243	Haskell	2021-07-13 00:43:59
6	Jan Hrček	1513	Haskell	2020-11-09 17:09:06
7	Brent Yorgey	1636	Haskell	2017-10-22 21:38:49
8	Isaac Arvestad	2276	Haskell	2018-11-23 18:21:10

#	User	Length	Language	Date
1	Prakash Sanyasi	742	Java	2017-08-08 18:42:19
2	Doug Goodman	765	Java	2017-08-07 15:49:04
3	Caeden Whitaker	793	Java	2020-07-15 01:24:28
4	Benjamin Laurence Erickson	832	Java	2016-10-27 00:18:36
5	Zhen Lin	857	Java	2016-10-22 18:01:03
6	Qritel Abdelilah	884	Java	2017-05-08 23:02:19
7	Carter Henderson	920	Java	2022-02-24 16:37:58
8	Jacob Burroughs	942	Java	2016-04-16 18:06:43
9	Kiên Nguyễn Tiến Trung	955	Java	2017-01-13 08:15:45
10	Christian Fuller	994	Java	2018-04-24 20:45:39

#	User	Length	Language	Date
1	Chris Wong	1073	JavaScript (Node.js)	2021-03-03 03:05:49
2	Filip Sanderfelt	1095	JavaScript (Node.js)	2023-02-04 14:13:03
3	Keisha Marie Dy Zapra	1140	JavaScript (Node.js)	2022-09-20 09:55:24
4	Anh Lâm	1144	JavaScript (Node.js)	2018-09-27 15:12:46
5	Mehdi Nassim KHODJA	1179	JavaScript (Node.js)	2021-02-12 16:55:41
6	Andoko Chandra	1364	JavaScript (Node.js)	2020-10-11 12:50:08
7	Kliver Daniel	1404	JavaScript (Node.js)	2022-08-14 21:32:16
8	Zahra Moradlou	1497	JavaScript (Node.js)	2020-01-20 14:10:30
9	Adam Gustafsson	1505	JavaScript (Node.js)	2025-11-13 18:46:54
10	Andreas Cedervall	1948	JavaScript (Node.js)	2019-12-11 11:20:19

#	User	Length	Language	Date
1	Jimmy Gustafsson	435	JavaScript (SpiderMonkey)	2022-06-18 21:17:56
2	Bjørn Chr. Soltvedt	550	JavaScript (SpiderMonkey)	2016-03-07 01:06:41
3	Tor Nordqvist	587	JavaScript (SpiderMonkey)	2016-11-14 12:00:06
4	Peter Menyes	620	JavaScript (SpiderMonkey)	2021-08-24 10:52:40
5	Christian Pilegaard Cederquist	662	JavaScript (SpiderMonkey)	2023-01-13 13:35:54
6	Gabriel Lau	665	JavaScript (SpiderMonkey)	2016-03-29 01:42:23
7	Peter Kedemo	950	JavaScript (SpiderMonkey)	2016-01-01 12:16:37
8	Marcus Ramse	1092	JavaScript (SpiderMonkey)	2016-04-30 09:54:18
9	Yaser Rahmati	1115	JavaScript (SpiderMonkey)	2019-09-10 21:43:10
10	Eva Olausson	1165	JavaScript (SpiderMonkey)	2021-05-29 20:29:03

#	User	Length	Language	Date
1	Timothy Gaede	1425	Julia	2024-04-30 14:23:32

#	User	Length	Language	Date
1	Emil Wihlander	644	Kotlin	2023-07-27 13:10:31
2	J Z	1031	Kotlin	2018-06-17 06:53:47
3	Fubin Luan	1060	Kotlin	2018-06-17 04:44:35
4	Einar Kjellback	1073	Kotlin	2020-01-19 19:24:05
5	Adam Rankin	1099	Kotlin	2023-05-10 19:22:31
6	Matt Iverson	1130	Kotlin	2018-09-23 17:10:17
7	Jacob Huebner	1185	Kotlin	2020-02-26 01:29:52
8	Nicolas Woolrich	1298	Kotlin	2021-12-10 04:05:25
9	Troy Warmboe	1314	Kotlin	2020-02-14 23:23:44
10	Bradley Richards	1428	Kotlin	2023-03-16 14:45:15

#	User	Length	Language	Date
1	Brandon Tang	916	OCaml	2023-07-17 03:59:47

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1294	Pascal	2018-02-07 12:59:00

#	User	Length	Language	Date
1	Susanne Ragnemalm	716	PHP	2024-05-13 16:44:47
2	jonathan Edfeldt	797	PHP	2020-11-12 22:51:17
3	Renate	800	PHP	2021-11-13 23:37:05
4	Peter van Zyl	1907	PHP	2025-07-12 15:00:27

#	User	Length	Language	Date
1	Hakan Kjellerstrand	676	Prolog	2023-02-26 09:19:25
2	Andriy Zyevakov	901	Prolog	2018-11-21 16:09:51

#	User	Length	Language	Date
1	Thomas Feld	284	Python 2	2019-09-04 10:20:25
2	Neal Zane	346	Python 2	2015-12-07 00:50:28
3	Andreas Björklund	382	Python 2	2021-04-01 13:40:33
4	Oskar Haarklou Veileborg	406	Python 2	2017-12-20 23:53:26
5	Måns Magnusson	429	Python 2	2018-07-04 15:06:52
6	Tomas Alvarez	456	Python 2	2017-05-08 22:07:57
7	Johan Lyts	475	Python 2	2019-06-18 19:46:09
8	Logan Su	502	Python 2	2016-10-22 18:02:12
9	Cole Bite	506	Python 2	2017-04-13 21:19:27
10	Muzakhir Amanzholov	516	Python 2	2017-03-01 20:17:30

#	User	Length	Language	Date
1	Aldo Luna Bueno	226	Python 3	2024-10-23 02:17:00
2	Benjamin Z White	235	Python 3	2023-07-16 00:33:34
3	Charles Ancheta	241	Python 3	2023-04-12 06:33:17
4	Ahmed Chamseddine	246	Python 3	2024-07-08 13:35:30
5	Thibault Raffaillac	295	Python 3	2023-08-03 09:14:39
6	Yong Mao	297	Python 3	2023-05-26 12:47:10
7	Wen Li Looi	332	Python 3	2015-11-16 23:00:19
8	Harry Zhang	346	Python 3	2023-01-02 08:29:53
9	Shashank Bhatt	348	Python 3	2024-07-23 03:30:08
10	Isaac Erdman	350	Python 3	2024-10-25 22:39:00

#	User	Length	Language	Date
1	Thomas Feld	173	Ruby	2022-11-25 10:08:02
2	Russell Ng	189	Ruby	2025-06-08 09:54:22
3	Hidden user	349	Ruby	2021-11-03 18:43:18
4	Erik Rydbert	599	Ruby	2016-08-08 10:09:22
5	Eleanor Janine Juan	882	Ruby	2025-03-01 14:10:33

#	User	Length	Language	Date
1	Kok Dith	1066	Rust	2021-08-17 01:40:28
2	David Zacek	1130	Rust	2021-06-10 22:46:27
3	David Rasch	1247	Rust	2021-11-02 17:15:26
4	Bas Dirks	1577	Rust	2022-01-04 08:52:58
5	Eric Pinter	1737	Rust	2021-07-23 21:56:13
6	Pankajkumar Patro	1771	Rust	2024-11-01 14:45:02
7	Viktor Palm	1946	Rust	2022-05-23 18:56:32
8	Isak Jägberg	1950	Rust	2024-10-19 21:32:23
9	Andrea Cattaneo	2610	Rust	2024-04-06 19:05:16
10	Sebastian Thiel	3983	Rust	2018-11-04 15:54:11

Solution running time distribution