Problem I
Scaling Recipes — Problem Statistics

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Submissions	4445
Accepted submissions	1823
Submission ratio	41.01%
Authors	1527
Full solves [?]	1442
Full solve Ratio	94.43%

#	User	Runtime	Language	Date
1	Đào Thanh Duy	0.02 s	C	2016-03-08 00:48:00
2	Nhật Anh Võ Nguyễn	0.02 s	C	2016-03-08 04:42:04
3	Nguyễn Hoàng	0.02 s	C	2016-03-08 15:25:17
4	Tran Quang Kha	0.02 s	C	2016-03-09 04:50:25
5	Vuong Thieu Huy	0.02 s	C	2016-03-09 06:41:08
6	BuildBlocks	0.02 s	C	2016-03-17 06:19:57
7	Moaz Mahmud	0.02 s	C	2016-03-17 07:13:43
8	Paul Gunawan	0.02 s	C	2016-08-05 00:19:27
9	Syed Abdullah	0.02 s	C	2017-01-16 17:19:45
10	Jón Steinn Elíasson	0.02 s	C	2017-07-08 13:48:39

#	User	Runtime	Language	Date
1	Alfred Kristal Ern	0.06 s	C#	2023-11-30 22:20:56
2	Duelene Olson	0.08 s	C#	2016-12-16 02:56:18
3	Andrzej Krajniak	0.09 s	C#	2017-07-26 18:08:02
4	Sofia Hansson	0.09 s	C#	2023-04-18 08:48:14
5	Sofia Hansson	0.09 s	C#	2023-04-18 09:18:05
6	Sano Gharzani	0.09 s	C#	2023-12-01 17:51:04
7	Jesper Sandberg	0.09 s	C#	2024-04-24 15:00:00
8	Stephen Odhiambo	0.10 s	C#	2023-09-22 16:57:17
9	Ruan van Schalkwyk	0.10 s	C#	2023-10-20 20:03:02
10	Gregory Sinclair	0.10 s	C#	2023-11-19 22:20:43

#	User	Runtime	Language	Date
1	Grae Yeandle	0.01 s	C++	2016-12-02 11:58:23
2	Alexander Kravberg	0.01 s	C++	2021-12-20 00:49:18
3	Tianyi Chen	0.02 s	C++	2015-11-26 11:50:15
4	CholRyong Jong	0.02 s	C++	2015-12-06 02:13:43
5	Lê Khắc Hồng Phúc	0.02 s	C++	2016-03-07 19:35:30
6	Thành Hưng	0.02 s	C++	2016-03-08 08:20:08
7	Đinh Phạm Đăng Khoa	0.02 s	C++	2016-03-08 09:11:48
8	Steven Halim	0.02 s	C++	2016-03-13 17:02:26
9	Hidden user	0.02 s	C++	2016-03-17 04:20:48
10	Kazi Hasan Zubaer	0.02 s	C++	2016-03-17 04:54:47

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.17 s	F#	2022-09-15 21:14:34

#	User	Runtime	Language	Date
1	Magix	0.08 s	Go	2020-09-17 10:28:22
2	Neal McCarthy	0.09 s	Go	2018-10-28 21:11:27
3	Diamond	0.10 s	Go	2022-11-05 03:36:21
4	Norbert Voelker	0.16 s	Go	2021-04-21 00:38:13
5	Ian Howell	1.16 s	Go	2019-07-19 18:43:37

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

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.20 s	Java	2021-10-30 11:30:24
2	Charlie Zheng	0.23 s	Java	2018-10-18 02:59:15
3	Guillaume Wery	0.25 s	Java	2018-12-18 18:26:50
4	Martijn Muijsers	0.26 s	Java	2016-10-05 15:11:01
5	Robert Slutsky	0.26 s	Java	2017-04-13 20:41:41
6	José Vander Meulen	0.26 s	Java	2018-09-16 20:05:21
7	Hidden user	0.26 s	Java	2018-10-21 13:11:12
8	Igor Durovic	0.27 s	Java	2017-11-02 04:06:36
9	Ozturk Ekrem	0.27 s	Java	2018-11-24 17:22:04
10	Aldo Chow	0.28 s	Java	2017-08-14 05:11:01

#	User	Runtime	Language	Date
1	Filip Sanderfelt	0.19 s	JavaScript (Node.js)	2023-02-04 15:13:03
2	Adam Gustafsson	0.24 s	JavaScript (Node.js)	2025-11-13 19:46:54
3	Keisha Marie Dy Zapra	0.35 s	JavaScript (Node.js)	2022-09-20 11:55:24
4	Kliver Daniel	0.40 s	JavaScript (Node.js)	2022-08-14 23:32:16
5	Andreas Cedervall	0.51 s	JavaScript (Node.js)	2019-12-11 12:15:56
6	Chris Wong	0.54 s	JavaScript (Node.js)	2021-03-03 04:05:49
7	Andoko Chandra	0.57 s	JavaScript (Node.js)	2020-10-11 14:50:08

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.05 s	JavaScript (SpiderMonkey)	2016-03-07 02:06:41
2	Tor Nordqvist	0.05 s	JavaScript (SpiderMonkey)	2016-11-14 13:25:49
3	Peter Kedemo	0.07 s	JavaScript (SpiderMonkey)	2016-01-01 13:16:37
4	Gabriel Lau	0.07 s	JavaScript (SpiderMonkey)	2016-03-29 03:42:23
5	Marcus Ramse	0.07 s	JavaScript (SpiderMonkey)	2016-04-30 11:54:18
6	Peter Menyes	0.07 s	JavaScript (SpiderMonkey)	2021-08-24 12:52:40
7	Jimmy Gustafsson	0.08 s	JavaScript (SpiderMonkey)	2022-06-18 23:17:56
8	Eva Olausson	0.09 s	JavaScript (SpiderMonkey)	2021-05-29 22:29:03
9	Christian Pilegaard Cederquist	0.09 s	JavaScript (SpiderMonkey)	2023-01-13 14:35:54
10	Yaser Rahmati	0.12 s	JavaScript (SpiderMonkey)	2019-09-10 23:43:10

#	User	Runtime	Language	Date
1	Timothy Gaede	0.86 s	Julia	2024-04-30 16:23:32

#	User	Runtime	Language	Date
1	Jacob Huebner	0.46 s	Kotlin	2020-02-26 02:29:52
2	Adam Rankin	0.61 s	Kotlin	2023-05-10 21:22:31
3	Emil Wihlander	0.64 s	Kotlin	2023-07-27 15:10:31
4	Troy Warmboe	0.85 s	Kotlin	2020-02-15 00:23:44
5	Nicolas Woolrich	0.85 s	Kotlin	2021-12-10 04:51:21
6	Einar Kjellback	0.86 s	Kotlin	2020-01-19 20:24:05
7	J Z	0.89 s	Kotlin	2018-06-17 08:53:47
8	Fubin Luan	0.90 s	Kotlin	2018-06-17 06:44:35
9	Matt Iverson	0.91 s	Kotlin	2018-09-23 19:10:17
10	Bradley Richards	0.92 s	Kotlin	2023-03-16 15:45:15

#	User	Runtime	Language	Date
1	Brandon Tang	0.03 s	OCaml	2023-07-17 05:59:47

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.41 s	Pascal	2018-02-07 13:59:00

#	User	Runtime	Language	Date
1	Renate	0.02 s	PHP	2021-11-14 00:37:05
2	jonathan Edfeldt	0.05 s	PHP	2020-11-12 23:51:17
3	Peter van Zyl	0.06 s	PHP	2025-07-12 17:00:27
4	Susanne Ragnemalm	0.09 s	PHP	2024-05-13 18:44:47

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.20 s	Prolog	2023-02-26 08:20:29
2	Andriy Zyevakov	0.64 s	Prolog	2018-11-21 17:09:51

#	User	Runtime	Language	Date
1	Andrei Stoica	0.06 s	Python 2	2017-11-29 21:55:19
2	Hasan Kalzi	0.07 s	Python 2	2022-06-18 22:41:59
3	Frederik Højholt	0.08 s	Python 2	2016-12-03 12:06:09
4	Scott Handelman	0.09 s	Python 2	2016-04-23 02:04:27
5	Maksym Bendeberia	0.09 s	Python 2	2016-10-25 12:58:53
6	Logan Su	0.10 s	Python 2	2016-10-22 20:02:12
7	Godmar Back	0.10 s	Python 2	2016-10-23 03:40:39
8	Tomas Alvarez	0.10 s	Python 2	2017-05-09 00:07:57
9	Çağdaş Öztekin	0.10 s	Python 2	2017-09-08 13:03:45
10	Johann Ly	0.10 s	Python 2	2018-11-07 08:10:28

#	User	Runtime	Language	Date
1	Wayne	0.05 s	Python 3	2016-02-17 20:18:40
2	K Lin	0.05 s	Python 3	2019-08-30 11:08:46
3	Ram Basnet	0.06 s	Python 3	2017-04-28 04:28:47
4	Subramanian Ramasamy	0.06 s	Python 3	2019-08-24 03:57:54
5	Samuel Grahn	0.06 s	Python 3	2019-11-04 14:19:19
6	Hidden user	0.07 s	Python 3	2015-11-22 21:16:32
7	Mikael Hedin	0.07 s	Python 3	2015-11-24 11:52:03
8	Magnus Thomé	0.07 s	Python 3	2016-05-17 15:09:48
9	Dennis Svedberg	0.07 s	Python 3	2017-05-20 23:53:49
10	mike	0.07 s	Python 3	2018-11-07 17:44:14

#	User	Runtime	Language	Date
1	Erik Rydbert	0.08 s	Ruby	2016-08-08 12:07:05
2	Hidden user	0.10 s	Ruby	2021-11-03 19:43:18
3	Russell Ng	0.11 s	Ruby	2025-06-08 11:34:53
4	Eleanor Janine Juan	0.12 s	Ruby	2025-03-01 15:10:33
5	Thomas Feld	0.13 s	Ruby	2022-11-25 11:08:02

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

#	User	Length	Language	Date
1	Martin Blom	320	C	2024-07-18 15:04:08
2	Stiff	624	C	2021-05-29 10:04:07
3	Moaz Mahmud	697	C	2016-03-17 07:13:43
4	Nhật Anh Võ Nguyễn	768	C	2016-03-08 04:42:04
5	Tran Quang Kha	800	C	2016-03-09 04:50:25
6	Zhuqi	801	C	2022-06-26 12:32:46
7	Warren Mazmur	828	C	2019-09-19 11:02:44
8	Mirel Cosulschi	829	C	2025-04-03 12:26:33
9	Jón Steinn Elíasson	831	C	2017-07-08 13:48:39

#	User	Length	Language	Date
1	Gregory Sinclair	453	C#	2023-11-19 22:20:43
2	Thomas Norris	984	C#	2019-10-18 22:12:07
3	Eric Weiss	1421	C#	2022-07-08 21:49:29
4	Carl Davidsson	1532	C#	2023-12-25 12:42:43
5	Fredrik Widén	1533	C#	2023-11-24 10:17:22
6	Göran Andersson	1605	C#	2022-05-14 20:34:08
7	Sofia Hansson	1626	C#	2023-04-18 08:48:14
8	Christian Bjernersjö	1686	C#	2020-12-05 19:15:19
9	Max Hansen	1718	C#	2022-05-28 18:33:28
10	Amanda Borg	1730	C#	2023-12-08 13:19:54

#	User	Length	Language	Date
1	Chuck Fernández	515	C++	2016-04-18 20:51:07
2	Antonio Molina Lovett	517	C++	2016-08-09 08:18:12
3	Johan Wind	520	C++	2015-11-26 12:13:24
4	吳宗達	532	C++	2017-10-13 13:31:23
5	Dimitrios Rontogiannis	549	C++	2018-03-17 19:51:02
6	Zane Yu	555	C++	2018-12-18 11:54:49
7	William Gan	574	C++	2017-01-12 05:01:25
8	Frederick Pek	579	C++	2021-06-06 20:51:05
9	Li Yao'an	586	C++	2017-01-12 03:51:58
10	人外沙耶	601	C++	2020-06-06 05:01:00

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1839	F#	2022-09-15 21:14:34

#	User	Length	Language	Date
1	Ian Howell	1147	Go	2019-07-19 18:43:37
2	Norbert Voelker	1390	Go	2021-04-21 00:38:13
3	Diamond	1775	Go	2022-11-05 03:36:21
4	Neal McCarthy	1835	Go	2018-10-28 21:11:27
5	Magix	2399	Go	2020-09-17 10:11:01

#	User	Length	Language	Date
1	Steinar Simonnes	773	Haskell	2024-01-31 17:33:26
2	Hidden user	1008	Haskell	2023-01-17 19:40:48
3	Patrik Lilja	1141	Haskell	2016-02-14 11:07:38
4	Hidden user	1237	Haskell	2019-08-28 13:27:43
5	Caleb Surovik	1243	Haskell	2021-07-13 02:43:59
6	Jan Hrček	1513	Haskell	2020-11-09 18:09:06
7	Brent Yorgey	1636	Haskell	2017-10-22 23:38:49
8	Isaac Arvestad	2276	Haskell	2018-11-23 19:21:10

#	User	Length	Language	Date
1	Prakash Sanyasi	742	Java	2017-08-08 20:42:19
2	Doug Goodman	765	Java	2017-08-07 17:49:04
3	Caeden Whitaker	793	Java	2020-07-15 03:24:28
4	Benjamin Laurence Erickson	832	Java	2016-10-27 02:18:36
5	Zhen Lin	857	Java	2016-10-22 20:01:03
6	Qritel Abdelilah	884	Java	2017-05-09 01:02:19
7	Carter Henderson	920	Java	2022-02-24 17:37:58
8	Jacob Burroughs	942	Java	2016-04-16 20:06:43
9	Kiên Nguyễn Tiến Trung	955	Java	2017-01-13 09:15:45
10	Christian Fuller	994	Java	2018-04-24 22:45:39

#	User	Length	Language	Date
1	Chris Wong	1073	JavaScript (Node.js)	2021-03-03 04:05:49
2	Filip Sanderfelt	1095	JavaScript (Node.js)	2023-02-04 15:13:03
3	Keisha Marie Dy Zapra	1140	JavaScript (Node.js)	2022-09-20 11:55:24
4	Anh Lâm	1144	JavaScript (Node.js)	2018-09-27 17:12:46
5	Andoko Chandra	1364	JavaScript (Node.js)	2020-10-11 14:50:08
6	Kliver Daniel	1404	JavaScript (Node.js)	2022-08-14 23:32:16
7	Zahra Moradlou	1497	JavaScript (Node.js)	2020-01-20 15:10:30
8	Adam Gustafsson	1505	JavaScript (Node.js)	2025-11-13 19:46:54
9	Andreas Cedervall	1948	JavaScript (Node.js)	2019-12-11 12:20:19

#	User	Length	Language	Date
1	Jimmy Gustafsson	435	JavaScript (SpiderMonkey)	2022-06-18 23:17:56
2	Bjørn Chr. Soltvedt	550	JavaScript (SpiderMonkey)	2016-03-07 02:06:41
3	Tor Nordqvist	587	JavaScript (SpiderMonkey)	2016-11-14 13:00:06
4	Peter Menyes	620	JavaScript (SpiderMonkey)	2021-08-24 12:52:40
5	Christian Pilegaard Cederquist	662	JavaScript (SpiderMonkey)	2023-01-13 14:35:54
6	Gabriel Lau	665	JavaScript (SpiderMonkey)	2016-03-29 03:42:23
7	Peter Kedemo	950	JavaScript (SpiderMonkey)	2016-01-01 13:16:37
8	Marcus Ramse	1092	JavaScript (SpiderMonkey)	2016-04-30 11:54:18
9	Yaser Rahmati	1115	JavaScript (SpiderMonkey)	2019-09-10 23:43:10
10	Eva Olausson	1165	JavaScript (SpiderMonkey)	2021-05-29 22:29:03

#	User	Length	Language	Date
1	Timothy Gaede	1425	Julia	2024-04-30 16:23:32

#	User	Length	Language	Date
1	Emil Wihlander	644	Kotlin	2023-07-27 15:10:31
2	J Z	1031	Kotlin	2018-06-17 08:53:47
3	Fubin Luan	1060	Kotlin	2018-06-17 06:44:35
4	Einar Kjellback	1073	Kotlin	2020-01-19 20:24:05
5	Adam Rankin	1099	Kotlin	2023-05-10 21:22:31
6	Matt Iverson	1130	Kotlin	2018-09-23 19:10:17
7	Jacob Huebner	1185	Kotlin	2020-02-26 02:29:52
8	Nicolas Woolrich	1298	Kotlin	2021-12-10 05:05:25
9	Troy Warmboe	1314	Kotlin	2020-02-15 00:23:44
10	Bradley Richards	1428	Kotlin	2023-03-16 15:45:15

#	User	Length	Language	Date
1	Brandon Tang	916	OCaml	2023-07-17 05:59:47

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1294	Pascal	2018-02-07 13:59:00

#	User	Length	Language	Date
1	Susanne Ragnemalm	716	PHP	2024-05-13 18:44:47
2	jonathan Edfeldt	797	PHP	2020-11-12 23:51:17
3	Renate	800	PHP	2021-11-14 00:37:05
4	Peter van Zyl	1907	PHP	2025-07-12 17:00:27

#	User	Length	Language	Date
1	Hakan Kjellerstrand	676	Prolog	2023-02-26 10:19:25
2	Andriy Zyevakov	901	Prolog	2018-11-21 17:09:51

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

#	User	Length	Language	Date
1	Aldo Luna Bueno	226	Python 3	2024-10-23 04:17:00
2	Benjamin Z White	235	Python 3	2023-07-16 02:33:34
3	Charles Ancheta	241	Python 3	2023-04-12 08:33:17
4	Ahmed Chamseddine	246	Python 3	2024-07-08 15:35:30
5	Thibault Raffaillac	295	Python 3	2023-08-03 11:14:39
6	Yong Mao	297	Python 3	2023-05-26 14:47:10
7	Wen Li Looi	332	Python 3	2015-11-17 00:00:19
8	Harry Zhang	346	Python 3	2023-01-02 09:29:53
9	Shashank Bhatt	348	Python 3	2024-07-23 05:30:08
10	Isaac Erdman	350	Python 3	2024-10-26 00:39:00

#	User	Length	Language	Date
1	Thomas Feld	173	Ruby	2022-11-25 11:08:02
2	Russell Ng	189	Ruby	2025-06-08 11:54:22
3	Hidden user	349	Ruby	2021-11-03 19:43:18
4	Erik Rydbert	599	Ruby	2016-08-08 12:09:22
5	Eleanor Janine Juan	882	Ruby	2025-03-01 15:10:33

#	User	Length	Language	Date
1	Kok Dith	1066	Rust	2021-08-17 03:40:28
2	David Zacek	1130	Rust	2021-06-11 00:46:27
3	David Rasch	1247	Rust	2021-11-02 18:15:26
4	Bas Dirks	1577	Rust	2022-01-04 09:52:58
5	Eric Pinter	1737	Rust	2021-07-23 23:56:13
6	Pankajkumar Patro	1771	Rust	2024-11-01 15:45:02
7	Viktor Palm	1946	Rust	2022-05-23 20:56:32
8	Isak Jägberg	1950	Rust	2024-10-19 23:32:23
9	Andrea Cattaneo	2610	Rust	2024-04-06 21:05:16
10	Sebastian Thiel	3983	Rust	2018-11-04 16:54:11

Solution running time distribution