Problem I
Implementation Irregularities — Problem Statistics

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Submissions	1888
Accepted submissions	539
Submission ratio	28.55%
Authors	437
Full solves [?]	387
Full solve Ratio	88.56%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.02 s	C	2021-11-24 14:59:08
2	Szymon Kucharski	0.02 s	C	2022-09-17 15:31:11

#	User	Runtime	Language	Date
1	Frank Endriss	0.01 s	C++	2022-06-04 12:31:32
2	Maximilliano Utomo Quok	0.02 s	C++	2023-01-02 15:57:59
3	S1lence_Ccc (Silence_ccc)	0.02 s	C++	2024-11-26 13:24:08
4	Maciej Sidor	0.03 s	C++	2021-11-16 14:08:40
5	Matei Tinca	0.03 s	C++	2021-11-16 23:52:30
6	Sander de Beet	0.03 s	C++	2021-11-17 11:35:36
7	Nicholas Foo Chuan Le	0.03 s	C++	2021-11-17 23:48:29
8	Florian Kothmeier	0.03 s	C++	2021-11-18 12:15:22
9	Eva Dengler	0.03 s	C++	2021-11-18 14:46:22
10	Ahmed Chamseddine	0.03 s	C++	2021-11-25 09:25:06

#	User	Runtime	Language	Date
1	Norbert Voelker	0.14 s	Go	2021-12-05 14:52:55

#	User	Runtime	Language	Date
1	Brent Yorgey	0.34 s	Haskell	2024-09-23 16:43:35
2	Lars Corbijn	0.78 s	Haskell	2022-09-19 21:22:44

#	User	Runtime	Language	Date
1	Crystal Sharpe	0.20 s	Java	2021-12-05 05:01:29
2	Fan Wenzhen	0.21 s	Java	2026-01-06 15:32:32
3	Bjørn Dons	0.28 s	Java	2023-02-26 19:55:55
4	Doug Goodman	0.38 s	Java	2021-11-23 17:03:51
5	Nora Steffen	0.38 s	Java	2022-01-27 02:29:08
6	Vu Minh Hieu	0.40 s	Java	2021-11-25 13:28:22
7	Jeffrey H.	0.45 s	Java	2023-08-21 23:02:36
8	Danny Thai	0.46 s	Java	2022-10-20 21:04:03
9	Quân Anh	0.48 s	Java	2024-04-26 05:08:42
10	Esther Chong	0.50 s	Java	2023-08-11 11:21:54

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.12 s	JavaScript (SpiderMonkey)	2023-07-23 12:09:02
2	Bjørn Chr. Soltvedt	0.15 s	JavaScript (SpiderMonkey)	2023-03-23 16:25:09

#	User	Runtime	Language	Date
1	Jacob Huebner	0.44 s	Kotlin	2022-02-23 00:49:24
2	Nicholas Johnson	0.68 s	Kotlin	2022-02-21 21:52:15
3	Adam Rankin	0.70 s	Kotlin	2023-09-04 07:13:52

#	User	Runtime	Language	Date
1	Björn Magnusson	0.26 s	Python 2	2021-11-19 14:29:29
2	Andreas Björklund	0.27 s	Python 2	2022-01-23 11:45:26

#	User	Runtime	Language	Date
1	Xu Yiwei	0.12 s	Python 3	2023-03-14 07:42:06
2	Liu Zhixing	0.14 s	Python 3	2023-03-13 08:43:03
3	Raymond Daniel Alix Lu	0.16 s	Python 3	2023-03-12 03:30:45
4	Chew Ying Ying	0.16 s	Python 3	2023-03-12 12:16:33
5	Dirk Burgers	0.16 s	Python 3	2024-09-20 18:02:41
6	Nikita Tripathi	0.16 s	Python 3	2025-02-05 03:40:27
7	Manon Rustin	0.16 s	Python 3	2025-03-27 10:10:51
8	Jiaming Kong	0.16 s	Python 3	2025-08-07 09:46:40
9	Guo Yongqiang	0.17 s	Python 3	2025-04-20 14:32:40
10	Hidden user	0.18 s	Python 3	2023-03-11 16:35:05

#	User	Runtime	Language	Date
1	Thomas Feld	0.54 s	Ruby	2025-10-28 10:48:13

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2024-11-24 14:28:59
2	Judith Hemp	0.02 s	Rust	2022-02-13 14:43:47
3	Yoeri Otten	0.03 s	Rust	2022-02-28 16:16:06

#	User	Length	Language	Date
1	Bergur Snorrason	1907	C	2021-11-24 14:59:08
2	Szymon Kucharski	2586	C	2022-09-17 14:41:06

#	User	Length	Language	Date
1	Traian Dobrin	356	C++	2022-09-19 20:23:50
2	Jérôme Mayolet	373	C++	2021-11-20 16:47:45
3	Ludo Pulles	393	C++	2021-11-29 16:18:42
4	Lucas Davi	433	C++	2025-02-04 14:05:17
5	Lim An Jun	472	C++	2023-01-02 15:15:50
6	Tuukka Korhonen	490	C++	2022-02-27 12:29:06
7	Yeung Man Tsung	496	C++	2023-01-02 14:19:45
8	Lee Zheng Han	504	C++	2023-01-06 17:09:56
9	David Lolck	509	C++	2022-10-04 13:33:42
10	Dmitry Lyubshin	517	C++	2023-04-05 09:43:00

#	User	Length	Language	Date
1	Norbert Voelker	1237	Go	2021-12-05 14:52:55

#	User	Length	Language	Date
1	Lars Corbijn	655	Haskell	2022-09-19 21:22:44
2	Brent Yorgey	7648	Haskell	2024-09-23 16:43:35

#	User	Length	Language	Date
1	Doug Goodman	1144	Java	2021-11-23 17:03:51
2	Suhas T. Nagar	1243	Java	2023-01-28 21:51:11
3	Crystal Sharpe	1267	Java	2021-12-05 05:01:29
4	zhihao fang	1558	Java	2022-10-11 00:51:30
5	RyanXin	1560	Java	2022-10-11 15:08:42
6	islam mahmoud	1765	Java	2022-09-28 21:21:15
7	Nora Steffen	2061	Java	2022-01-27 02:29:08
8	Jeffrey H.	2126	Java	2023-08-21 23:02:36
9	Fan Wenzhen	2166	Java	2026-01-06 15:31:44
10	Vidith Madhu	2487	Java	2022-02-27 23:17:27

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	399	JavaScript (SpiderMonkey)	2023-03-23 16:25:09
2	Christian Pilegaard Cederquist	496	JavaScript (SpiderMonkey)	2023-07-23 12:09:02

#	User	Length	Language	Date
1	Adam Rankin	561	Kotlin	2023-09-04 07:13:52
2	Jacob Huebner	1250	Kotlin	2022-02-23 00:49:24
3	Nicholas Johnson	2735	Kotlin	2022-02-21 21:52:15

#	User	Length	Language	Date
1	Andreas Björklund	249	Python 2	2022-01-23 11:45:26
2	Björn Magnusson	339	Python 2	2021-11-19 14:29:29

#	User	Length	Language	Date
1	Hidden user	103	Python 3	2023-01-06 11:33:43
2	Benjamin Z White	119	Python 3	2023-05-27 17:15:23
3	Lee Isaac	128	Python 3	2023-01-05 21:43:01
4	Iman Khodadi	154	Python 3	2024-06-16 12:26:36
5	Hidden user	187	Python 3	2023-11-28 08:41:44
6	Kévin Dubrulle	187	Python 3	2024-03-28 16:29:53
7	Peter Stauder	189	Python 3	2023-03-20 19:36:42
8	Marcus Xu	205	Python 3	2023-01-03 19:35:47
9	Jeroen Op de Beek	224	Python 3	2024-09-23 18:58:51
10	Caeden Whitaker	225	Python 3	2022-03-05 04:10:16

#	User	Length	Language	Date
1	Thomas Feld	79	Ruby	2025-10-28 10:57:51

#	User	Length	Language	Date
1	Judith Hemp	1899	Rust	2022-02-13 14:43:47
2	Yoeri Otten	2541	Rust	2022-02-28 16:16:06
3	Vincent Lagerros	17477	Rust	2024-11-24 14:28:59

Solution running time distribution