Problem I
Unique Snowflakes — Problem Statistics

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Submissions	4629
Accepted submissions	1288
Submission ratio	27.82%
Authors	1082
Full solves [?]	858
Full solve Ratio	79.30%

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	C	2017-05-22 15:28:40
2	Sander Põdra	0.09 s	C	2026-03-09 11:20:00
3	Erik Luehrmann	0.10 s	C	2022-04-21 22:52:30
4	Bergur Snorrason	0.16 s	C	2019-03-21 18:39:40
5	Floris Douw	0.24 s	C	2019-08-18 18:14:14
6	Ivan Petrov	0.44 s	C	2019-09-17 14:10:47

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.28 s	C#	2024-12-17 09:33:14
2	Paulina Obara	0.38 s	C#	2016-09-29 19:52:05
3	Andrzej Krajniak	0.42 s	C#	2016-09-29 21:50:57
4	Frankie Chen	0.42 s	C#	2019-08-22 17:32:15
5	Kristoffer Højelse	0.45 s	C#	2020-11-27 18:11:23
6	Markuss Sprogis	1.04 s	C#	2020-07-02 08:17:19

#	User	Runtime	Language	Date
1	Ashley Khoo	0.04 s	C++	2019-07-25 17:10:43
2	traxex	0.05 s	C++	2018-04-13 02:09:58
3	Hidden user	0.06 s	C++	2017-05-22 15:06:38
4	Ranald Lam	0.06 s	C++	2018-01-28 08:52:49
5	Garðar Ingvarsson	0.06 s	C++	2019-08-13 11:58:27
6	Yao Wang	0.06 s	C++	2020-01-26 03:31:13
7	Agis Daniels	0.06 s	C++	2020-02-22 17:31:03
8	Sabit Zahin	0.07 s	C++	2017-01-26 23:42:34
9	Ziling Zhang	0.07 s	C++	2017-09-26 20:41:33
10	Mirel Cosulschi	0.07 s	C++	2025-03-30 22:37:42

#	User	Runtime	Language	Date
1	Hugo Sansaqua	0.19 s	Common Lisp	2020-11-27 16:32:24

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2024-05-13 23:51:20

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.12 s	Java	2022-02-06 17:13:27
2	Asmus Tørsleff	0.24 s	Java	2020-11-30 12:22:54
3	Paul Boddington	0.27 s	Java	2016-05-15 23:37:35
4	Martijn Muijsers	0.31 s	Java	2016-11-02 20:39:51
5	Nigel Liebers	0.32 s	Java	2016-09-19 21:57:27
6	Bjørn Dons	0.33 s	Java	2020-04-25 19:04:04
7	Eugene Foo	0.35 s	Java	2018-11-15 17:33:18
8	Micah Stairs	0.36 s	Java	2016-08-16 20:43:11
9	Jiao Simiao	0.36 s	Java	2018-11-06 04:32:30
10	Sean Lim	0.36 s	Java	2018-11-10 09:48:31

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.40 s	JavaScript (SpiderMonkey)	2023-07-09 07:58:09
2	Bjørn Chr. Soltvedt	1.00 s	JavaScript (SpiderMonkey)	2016-08-20 03:56:22
3	Nicklas Utgaard	1.68 s	JavaScript (SpiderMonkey)	2019-10-15 08:35:24

#	User	Runtime	Language	Date
1	Adam Rankin	0.56 s	Kotlin	2023-09-09 18:18:46
2	Hidden user	0.66 s	Kotlin	2020-04-22 23:36:16
3	Chelsea Hoernemann	0.66 s	Kotlin	2022-11-08 21:03:57
4	Frederik Bjørn Groben Nielsen	0.70 s	Kotlin	2023-09-09 19:59:55

#	User	Runtime	Language	Date
1	Óðinn Ágústsson	0.47 s	Lua	2025-02-17 17:50:47

#	User	Runtime	Language	Date
1	Junyu Zhan	0.08 s	Odin	2026-01-21 09:26:10

#	User	Runtime	Language	Date
1	Hermon Mulat	0.20 s	Python 2	2018-11-21 22:46:10
2	Hidden user	0.20 s	Python 2	2019-07-04 18:37:58
3	Guðni Natan Gunnarsson	0.21 s	Python 2	2018-09-22 01:58:13
4	Thomas Feld	0.21 s	Python 2	2023-06-13 15:16:33
5	Noble Mushtak	0.22 s	Python 2	2019-11-01 23:36:03
6	Yanmarshus Bachtiar	0.23 s	Python 2	2020-10-06 14:09:08
7	Marcus Johansson	0.30 s	Python 2	2016-09-17 22:13:59
8	Óðinn Eyjólfsson	0.31 s	Python 2	2017-03-15 16:36:51
9	Agis Daniels	0.31 s	Python 2	2020-02-22 17:43:41
10	Andreas Björklund	0.32 s	Python 2	2019-06-05 16:13:22

#	User	Runtime	Language	Date
1	Petr	0.20 s	Python 3	2025-07-14 21:03:07
2	Brynjar Már Björnsson	0.21 s	Python 3	2025-02-25 22:50:48
3	Christoffer Sommerlund	0.23 s	Python 3	2021-02-19 19:03:09
4	Hidden user	0.23 s	Python 3	2026-02-15 12:34:27
5	Bent Ari Gunnarsson	0.24 s	Python 3	2021-05-14 16:46:18
6	Sam Lichtman	0.24 s	Python 3	2022-11-01 22:43:44
7	Ryan Farrell	0.24 s	Python 3	2022-12-02 03:46:21
8	Andrew Hu (Diron123)	0.24 s	Python 3	2024-02-05 11:32:04
9	Josh Taylor	0.25 s	Python 3	2021-07-01 07:06:21
10	Ahmad Amin	0.26 s	Python 3	2021-04-20 03:16:54

#	User	Runtime	Language	Date
1	Thomas Feld	0.51 s	Ruby	2023-06-23 11:06:55

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2025-03-09 16:28:54
2	Adrien Coulier	0.10 s	Rust	2020-04-10 17:34:14
3	Silver Slinko	0.10 s	Rust	2026-03-09 11:12:40
4	Pahlevi Fikri Auliya	0.11 s	Rust	2020-11-02 23:56:40
5	Fiat Driver	0.13 s	Rust	2023-07-06 14:22:16
6	carlo	0.17 s	Rust	2022-10-28 12:34:14

#	User	Runtime	Language	Date
1	John Magne Bredal	0.38 s	TypeScript	2024-06-18 14:42:16

#	User	Length	Language	Date
1	Sander Põdra	1714	C	2026-03-09 11:20:00
2	Erik Luehrmann	2251	C	2022-04-21 22:52:30
3	Hidden user	2573	C	2017-05-22 15:36:23
4	Floris Douw	3919	C	2019-08-18 18:14:14
5	Bergur Snorrason	7504	C	2019-03-21 18:39:40
6	Ivan Petrov	22094	C	2019-09-17 14:10:47

#	User	Length	Language	Date
1	Frankie Chen	1274	C#	2019-08-22 17:32:15
2	Kristoffer Højelse	1290	C#	2020-11-27 18:11:23
3	Markuss Sprogis	1410	C#	2020-07-02 08:17:19
4	Andrzej Krajniak	4571	C#	2016-09-29 21:50:57
5	Paulina Obara	4774	C#	2016-09-29 19:52:05
6	Andriy Zyevakov	8934	C#	2024-12-17 09:33:14

#	User	Length	Language	Date
1	Albin Heimerson	227	C++	2023-11-06 13:40:31
2	Simone Moretti	385	C++	2021-09-30 23:55:38
3	Markus Mathiasen	386	C++	2021-10-18 10:59:33
4	Mårten Wiman	413	C++	2012-09-09 12:53:57
5	David Chik	428	C++	2020-12-07 12:10:01
6	Lars Åström	435	C++	2018-11-06 10:57:38
7	Lorenzo Cazzador	437	C++	2021-11-16 17:51:44
8	Jamie Lim Jia Sin	446	C++	2018-11-11 04:39:45
9	Jiahui Lu	446	C++	2019-01-18 00:56:05
10	Azrael Brown	450	C++	2017-08-11 05:13:19

#	User	Length	Language	Date
1	Hugo Sansaqua	5507	Common Lisp	2020-11-27 16:32:24

#	User	Length	Language	Date
1	Norbert Voelker	651	Go	2024-05-13 23:49:41

#	User	Length	Language	Date
1	John Kevin Tjahjadi	634	Java	2016-01-26 12:13:36
2	Danniel Alcantara	635	Java	2024-02-20 07:59:03
3	Nguyen Anh Duc	660	Java	2024-11-26 18:18:19
4	Jerry Zhu	728	Java	2018-03-12 03:05:44
5	Micah Stairs	776	Java	2016-08-16 20:43:11
6	Eric Leow Yu Quan	803	Java	2021-12-09 09:49:34
7	Aron Granberg	815	Java	2012-09-09 13:35:04
8	James Black	819	Java	2019-02-13 01:56:55
9	Doug Goodman	853	Java	2018-06-08 19:26:08
10	Hidden user	853	Java	2022-02-25 14:00:10

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	338	JavaScript (SpiderMonkey)	2023-07-09 07:58:09
2	Bjørn Chr. Soltvedt	571	JavaScript (SpiderMonkey)	2016-08-20 03:56:22
3	Nicklas Utgaard	1150	JavaScript (SpiderMonkey)	2019-10-15 08:35:24

#	User	Length	Language	Date
1	Adam Rankin	635	Kotlin	2023-09-09 18:18:46
2	Frederik Bjørn Groben Nielsen	1133	Kotlin	2023-09-09 19:59:55
3	Hidden user	1554	Kotlin	2020-04-22 23:36:16
4	Chelsea Hoernemann	1960	Kotlin	2022-11-08 21:03:57

#	User	Length	Language	Date
1	Óðinn Ágústsson	1220	Lua	2025-02-17 17:50:47

#	User	Length	Language	Date
1	Junyu Zhan	1422	Odin	2026-01-21 09:26:10

#	User	Length	Language	Date
1	Thomas Feld	230	Python 2	2023-06-23 11:03:19
2	Hidden user	315	Python 2	2018-12-07 02:02:33
3	Andreas Björklund	333	Python 2	2019-06-05 16:13:22
4	Marcus Johansson	351	Python 2	2016-09-17 22:13:59
5	Agis Daniels	357	Python 2	2020-02-22 17:43:41
6	Eugene Lim	473	Python 2	2018-05-07 18:22:32
7	Óðinn Eyjólfsson	523	Python 2	2017-03-15 16:36:51
8	Yanmarshus Bachtiar	538	Python 2	2020-10-06 14:09:08
9	Hidden user	544	Python 2	2019-07-04 18:37:58
10	Mayank Makwana	571	Python 2	2017-09-21 04:34:59

#	User	Length	Language	Date
1	David Llorens	147	Python 3	2024-07-09 15:40:29
2	Casper Rysgaard	150	Python 3	2024-05-16 16:39:54
3	Yong Mao	158	Python 3	2023-07-14 18:47:58
4	Benjamin Z White	164	Python 3	2023-06-08 13:12:27
5	Ben Pendley	218	Python 3	2023-09-14 19:50:12
6	Chung Yan Chow	242	Python 3	2026-03-10 01:49:47
7	Nicholas Russell Saerang	247	Python 3	2022-02-11 16:34:16
8	Hidden user	257	Python 3	2021-05-03 17:55:26
9	Vincent Scala	260	Python 3	2022-02-18 00:33:18
10	Pakorn Ueareeworakul	270	Python 3	2020-10-12 12:07:01

#	User	Length	Language	Date
1	Thomas Feld	86	Ruby	2023-06-23 11:22:28

#	User	Length	Language	Date
1	Adrien Coulier	829	Rust	2020-04-10 17:34:14
2	Fiat Driver	1087	Rust	2023-07-06 14:22:16
3	carlo	1472	Rust	2022-10-28 12:34:14
4	Pahlevi Fikri Auliya	2156	Rust	2020-11-02 23:56:40
5	Silver Slinko	2905	Rust	2026-03-09 11:12:40
6	Vincent Lagerros	7782	Rust	2024-06-04 23:16:54

#	User	Length	Language	Date
1	John Magne Bredal	1231	TypeScript	2024-06-18 14:42:16

Solution running time distribution