Problem I
Number Sets — Problem Statistics

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Submissions	1948
Accepted submissions	762
Submission ratio	39.12%
Authors	578
Full solves [?]	484
Full solve Ratio	83.74%

#	User	Runtime	Language	Date
1	Reine Reynoso	0.00 s	C	2016-04-30 10:16:12
2	Jesper Öqvist	0.00 s	C	2018-06-09 18:09:59
3	Garðar Ingvarsson	0.00 s	C	2019-05-09 00:23:37
4	Jón Steinn Elíasson	0.00 s	C	2020-04-04 18:17:06
5	Max Nilsson	0.00 s	C	2021-07-01 02:30:44
6	AmirHosein Gharaati	0.00 s	C	2021-10-07 18:18:36
7	Erik Luehrmann	0.00 s	C	2022-04-21 21:08:11
8	James Rettie	0.00 s	C	2022-07-26 04:15:12
9	Quân Anh	0.00 s	C	2024-04-01 14:23:18
10	Alexander Bilde Pedersen	0.01 s	C	2025-03-06 19:30:14

#	User	Runtime	Language	Date
1	Jonathan Ibrahim	0.41 s	C#	2020-12-04 13:14:49

#	User	Runtime	Language	Date
1	Nathan Lee	0.00 s	Go	2025-11-24 13:35:40
2	Yitian Wang	0.02 s	Go	2023-03-03 02:20:45

#	User	Runtime	Language	Date
1	Juan Miguel Vilar	0.01 s	Haskell	2020-09-06 18:58:24
2	Mason Anderson	0.08 s	Haskell	2021-08-14 18:13:47

#	User	Runtime	Language	Date
1	Marco Vincenzo Karaan	0.06 s	Java	2016-04-30 09:37:53
2	Erik Baalhuis	0.06 s	Java	2016-08-13 02:36:38
3	Micah Stairs	0.06 s	Java	2016-09-03 15:53:31
4	Bjørn Dons	0.06 s	Java	2018-10-31 00:24:27
5	Brent Yorgey	0.06 s	Java	2018-11-08 11:59:08
6	Herman Appelgren	0.07 s	Java	2018-09-01 04:03:12
7	So Kimsu	0.08 s	Java	2015-07-28 19:24:27
8	Hidden user	0.08 s	Java	2017-02-16 05:04:44
9	Frank Ruskey	0.08 s	Java	2017-02-28 01:07:04
10	Morten Flensborg Jensen	0.08 s	Java	2021-09-02 01:19:03

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.11 s	JavaScript (SpiderMonkey)	2021-11-03 07:59:20
2	Christian Pilegaard Cederquist	0.73 s	JavaScript (SpiderMonkey)	2023-08-15 16:22:01

#	User	Runtime	Language	Date
1	Timothy Gaede	0.95 s	Julia	2024-07-16 06:14:38

#	User	Runtime	Language	Date
1	Jonathan Soo	0.18 s	Kotlin	2020-03-21 15:17:50
2	Phường Lên	0.21 s	Kotlin	2020-01-30 23:36:47
3	Ali M. Nekoh	0.22 s	Kotlin	2025-04-27 10:58:08
4	Hidden user	0.78 s	Kotlin	2020-02-13 16:24:51

#	User	Runtime	Language	Date
1	Jessica Fang	0.04 s	Python 2	2017-02-15 05:49:48
2	Sigurður Jens Albertsson	0.04 s	Python 2	2017-11-23 00:21:19
3	Maisam Arif	0.05 s	Python 2	2017-02-15 16:04:01
4	Hidden user	0.05 s	Python 2	2017-05-12 15:15:14
5	Juliang Li	0.05 s	Python 2	2018-02-02 01:17:17
6	Cian Ruane	0.05 s	Python 2	2018-04-09 16:04:23
7	Ciara Godwin	0.05 s	Python 2	2018-04-10 13:26:42
8	Gözde Yasar	0.05 s	Python 2	2018-05-02 23:21:09
9	Hidden user	0.06 s	Python 2	2017-02-15 05:20:53
10	RandyWaterhouse	0.06 s	Python 2	2021-09-09 08:03:04

#	User	Runtime	Language	Date
1	Max Li	0.02 s	Python 3	2016-03-04 00:28:53
2	Hidden user	0.02 s	Python 3	2017-08-05 23:30:58
3	Tyler Durden	0.02 s	Python 3	2018-02-09 17:26:51
4	Harry Smidt	0.02 s	Python 3	2019-09-19 21:19:49
5	Ciara Godwin	0.03 s	Python 3	2018-04-10 15:14:43
6	Hidden user	0.05 s	Python 3	2025-04-25 23:24:49
7	Julio Dondisch	0.05 s	Python 3	2025-04-25 23:45:30
8	Gregor Vavdi	0.06 s	Python 3	2016-03-14 18:33:30
9	Joey Tribianni	0.06 s	Python 3	2022-09-10 20:18:07
10	Yohannes Melese	0.06 s	Python 3	2022-09-10 20:19:15

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Ruby	2019-02-18 17:45:39

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2023-03-23 20:44:29
2	Mckinley Xie	0.00 s	Rust	2025-04-25 22:51:45
3	Artur Khuziakhmetov	0.00 s	Rust	2025-11-16 15:29:51
4	Savannah Cruz	0.00 s	Rust	2025-11-24 21:15:56
5	Hidden user	0.04 s	Rust	2022-11-30 18:14:34
6	Aaron Lengyel	0.76 s	Rust	2023-04-27 23:50:54

#	User	Length	Language	Date
1	Ivan Petrov	1531	C	2019-08-14 13:52:09
2	Jón Steinn Elíasson	1828	C	2020-04-04 18:10:15
3	Garðar Ingvarsson	1923	C	2019-05-09 00:23:37
4	Reine Reynoso	2045	C	2016-04-30 10:16:12
5	James Rettie	2053	C	2022-07-26 04:15:12
6	AmirHosein Gharaati	2064	C	2021-10-07 18:18:36
7	Jesper Öqvist	2229	C	2018-06-10 12:03:14
8	Alexander Bilde Pedersen	2334	C	2025-03-06 19:30:14
9	Max Nilsson	2581	C	2021-07-01 02:30:44
10	Quân Anh	2874	C	2024-04-01 14:23:18

#	User	Length	Language	Date
1	Jonathan Ibrahim	6175	C#	2020-12-04 13:14:49

#	User	Length	Language	Date
1	Yeung Man Tsung	836	C++	2023-01-04 12:38:47
2	Hidden user	885	C++	2017-05-27 14:24:14
3	Hidden user	911	C++	2017-05-27 15:24:10
4	William Gan	921	C++	2018-01-30 08:09:33
5	Xuan Tung Nguyen	923	C++	2020-04-05 11:44:32
6	Kamol Hasan	924	C++	2017-04-04 00:44:33
7	Fares Ibraheem Basuni	966	C++	2019-10-01 10:33:31
8	Nazir Nayal	971	C++	2018-08-08 20:16:43
9	Josenildo Silva	1020	C++	2020-04-30 01:35:36
10	Jordi Rodríguez Manso	1033	C++	2018-08-21 09:57:23

#	User	Length	Language	Date
1	Yitian Wang	2263	Go	2023-03-03 02:20:45
2	Nathan Lee	2312	Go	2025-11-24 13:35:40

#	User	Length	Language	Date
1	Mason Anderson	1715	Haskell	2021-08-14 18:13:47
2	Juan Miguel Vilar	3835	Haskell	2020-09-06 18:58:24

#	User	Length	Language	Date
1	Hidden user	1036	Java	2017-02-17 01:13:41
2	Doug Goodman	1229	Java	2018-03-06 20:25:28
3	Hidden user	1633	Java	2017-02-16 05:04:44
4	Crystal Sharpe	1729	Java	2020-05-29 16:16:31
5	Vanessa Diaz	1774	Java	2017-03-09 01:01:11
6	Frank Ruskey	1865	Java	2017-02-28 01:07:04
7	Brandon Morris	1930	Java	2016-06-26 14:47:22
8	So Kimsu	2059	Java	2015-07-28 19:24:27
9	Paul Boddington	2117	Java	2016-04-20 21:44:43
10	Simon Xue	2133	Java	2016-03-03 08:01:42

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	3479	JavaScript (SpiderMonkey)	2023-08-15 16:22:01
2	Bjørn Chr. Soltvedt	4194	JavaScript (SpiderMonkey)	2021-11-03 07:59:20

#	User	Length	Language	Date
1	Timothy Gaede	2356	Julia	2024-07-16 06:14:38

#	User	Length	Language	Date
1	Ali M. Nekoh	1733	Kotlin	2025-04-27 10:58:08
2	Phường Lên	2923	Kotlin	2020-01-30 23:36:47
3	Hidden user	3012	Kotlin	2020-02-13 16:24:51
4	Jonathan Soo	9008	Kotlin	2020-03-21 15:17:50

#	User	Length	Language	Date
1	Ciara Godwin	866	Python 2	2018-04-09 17:17:13
2	Andreas Björklund	988	Python 2	2019-08-16 08:56:13
3	Måns Magnusson	1091	Python 2	2018-04-06 17:52:31
4	Hidden user	1309	Python 2	2017-05-12 15:15:14
5	Steven Tran	1324	Python 2	2018-02-04 05:17:31
6	Sigurður Jens Albertsson	1341	Python 2	2017-11-23 00:21:19
7	Cian Ruane	1347	Python 2	2018-04-09 16:04:23
8	Thanapar Leelasathapornkun	1370	Python 2	2018-05-01 21:22:40
9	RandyWaterhouse	1397	Python 2	2021-09-09 08:03:04
10	Gözde Yasar	1411	Python 2	2018-05-02 23:21:09

#	User	Length	Language	Date
1	Gustav Elmqvist	286	Python 3	2023-02-17 02:44:09
2	Christofer Ohlsson	441	Python 3	2022-10-09 00:46:32
3	Oskar Haarklou Veileborg	584	Python 3	2020-06-15 20:54:35
4	James Hamm	654	Python 3	2018-05-09 18:28:16
5	Joey Tribianni	784	Python 3	2022-09-10 20:18:37
6	Yohannes Melese	784	Python 3	2022-09-10 20:19:15
7	Lawry Sorenson	804	Python 3	2025-03-12 19:23:12
8	Sarah Bassett	858	Python 3	2024-10-01 22:33:16
9	Hidden user	942	Python 3	2017-08-05 23:30:58
10	Hidden user	951	Python 3	2025-05-03 00:48:08

#	User	Length	Language	Date
1	Hidden user	1010	Ruby	2019-02-18 17:45:39

#	User	Length	Language	Date
1	Hidden user	1777	Rust	2023-03-23 20:44:29
2	Savannah Cruz	2725	Rust	2025-11-24 21:19:46
3	Artur Khuziakhmetov	3109	Rust	2025-11-16 15:29:51
4	Mckinley Xie	3154	Rust	2025-04-25 22:51:45
5	Hidden user	4944	Rust	2022-11-30 18:14:34
6	Aaron Lengyel	5851	Rust	2023-04-27 23:50:54

Solution running time distribution