Problem F
Rings — Problem Statistics

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Submissions	941
Accepted submissions	342
Submission ratio	36.34%
Authors	326
Accepted authors	267
Author ratio	81.90%

#	User	Runtime	Language	Date
1	Eyleifur Bjarkason	0.00 s	C	2019-12-24 04:51:14
2	Ivan Petrov	0.01 s	C	2019-09-18 16:07:36

#	User	Runtime	Language	Date
1	Martin Skivenesvåg Johannessen	0.31 s	C#	2023-07-01 22:23:03
2	Stefan Holm	0.87 s	C#	2022-05-02 18:45:59

#	User	Runtime	Language	Date
1	Mike Nguyen	0.01 s	Go	2024-04-12 06:11:34

#	User	Runtime	Language	Date
1	Hidden user	0.03 s	Haskell	2022-03-29 15:54:47
2	Brent Yorgey	0.05 s	Haskell	2019-12-25 21:14:37

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.08 s	Java	2023-11-25 13:27:30
2	Felix Grape	0.10 s	Java	2016-12-10 11:46:35
3	Sam Reinehr	0.11 s	Java	2017-11-10 04:13:18
4	Bryan Jin	0.11 s	Java	2018-08-21 01:56:56
5	Andrew Polizzotto	0.11 s	Java	2020-05-25 10:39:14
6	Bjørn Dons	0.12 s	Java	2020-07-12 22:04:48
7	Crystal Sharpe	0.12 s	Java	2021-01-14 07:56:01
8	Kevin Lim Yong Shen	0.14 s	Java	2022-04-07 11:27:34
9	Alan Zhou	0.14 s	Java	2025-04-29 23:26:03
10	Fredrik Sommar	0.16 s	Java	2015-12-11 14:05:19

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.04 s	JavaScript (SpiderMonkey)	2020-08-24 02:51:35

#	User	Runtime	Language	Date
1	Phường Lên	0.20 s	Kotlin	2020-05-18 05:46:25
2	Adam Rankin	0.34 s	Kotlin	2023-09-27 19:36:12

#	User	Runtime	Language	Date
1	Hermon Mulat	0.06 s	Python 2	2018-01-09 07:30:38
2	Oskar Haarklou Veileborg	0.08 s	Python 2	2019-10-25 14:25:40
3	Yanmarshus Bachtiar	0.09 s	Python 2	2020-09-11 05:28:11
4	Christofer Ohlsson	0.11 s	Python 2	2017-05-03 15:02:34
5	Andreas Björklund	0.14 s	Python 2	2019-05-09 20:18:59

#	User	Runtime	Language	Date
1	Ryoki Kunii	0.07 s	Python 3	2019-12-08 02:20:19
2	Maxim Barbe	0.08 s	Python 3	2024-10-04 21:58:50
3	Hidden user	0.08 s	Python 3	2025-05-03 03:46:41
4	Duoduo Zhao	0.08 s	Python 3	2025-07-07 17:45:55
5	Daniel Chen	0.09 s	Python 3	2025-04-29 22:15:22
6	Laith Bohsali	0.09 s	Python 3	2025-04-30 00:09:19
7	Ethan Nguyen	0.09 s	Python 3	2025-05-05 05:07:11
8	Hidden user	0.10 s	Python 3	2020-07-12 21:23:13
9	Ronan Tremoureux	0.10 s	Python 3	2023-02-21 18:22:22
10	Nicholas Russell Saerang	0.10 s	Python 3	2023-08-05 11:58:46

#	User	Runtime	Language	Date
1	Felix Köhler	0.00 s	Rust	2022-11-04 19:02:47
2	Nicholas Johansan	0.00 s	Rust	2023-06-23 14:40:53
3	Fiat Driver	0.00 s	Rust	2023-07-01 17:37:52
4	Mckinley Xie	0.00 s	Rust	2025-04-29 23:44:46
5	Emil Hultcrantz	0.00 s	Rust	2025-05-09 14:57:40
6	Joshua Ji	0.01 s	Rust	2020-11-30 22:56:18
7	Muhammad Rais Fathin Mudzakir	0.01 s	Rust	2021-07-06 18:01:16
8	Judith Hemp	0.01 s	Rust	2022-04-02 20:11:59
9	Daniel Anker Hermansen	0.01 s	Rust	2023-03-19 14:27:08
10	Ulrik Hansen	0.01 s	Rust	2023-08-02 13:19:02

#	User	Length	Language	Date
1	Ivan Petrov	2905	C	2019-09-18 16:07:36
2	Eyleifur Bjarkason	9544	C	2019-12-24 04:51:14

#	User	Length	Language	Date
1	Martin Skivenesvåg Johannessen	2946	C#	2023-07-01 22:23:03
2	Stefan Holm	7365	C#	2022-05-02 18:45:59

#	User	Length	Language	Date
1	Herman Karlsson	767	C++	2015-12-21 00:04:09
2	Evan Michael Bailey	856	C++	2024-05-27 13:21:00
3	Elias Lolck	905	C++	2024-09-12 14:42:29
4	William Gan	933	C++	2022-06-18 04:36:28
5	Zac Friggstad	956	C++	2021-07-07 16:46:43
6	Frederick Pek	989	C++	2021-06-06 12:15:40
7	Teikn Smith	1035	C++	2023-08-02 06:01:40
8	Rezwan Arefin	1065	C++	2022-04-06 17:04:36
9	Nyamdavaa Amar	1134	C++	2022-04-04 19:15:42
10	Vu Hoang Kien	1165	C++	2022-04-07 15:56:48

#	User	Length	Language	Date
1	Mike Nguyen	2394	Go	2024-04-12 06:11:34

#	User	Length	Language	Date
1	Hidden user	2306	Haskell	2022-03-29 15:54:47
2	Brent Yorgey	2575	Haskell	2019-12-25 21:14:37

#	User	Length	Language	Date
1	Doug Goodman	1303	Java	2018-04-20 20:52:34
2	Sam Reinehr	1688	Java	2017-11-10 04:13:18
3	Soldà Federico	1706	Java	2019-12-05 23:09:03
4	Andrew Polizzotto	1727	Java	2020-05-25 10:39:14
5	Zach Tschetter	1799	Java	2022-04-22 02:24:58
6	Simon Erlandsson	1983	Java	2020-02-01 03:22:14
7	Matthew Stewart	2090	Java	2018-03-23 00:21:50
8	William Zhao	2223	Java	2020-05-23 22:13:04
9	Crystal Sharpe	2251	Java	2021-01-14 07:56:01
10	Stephen Atwood	2288	Java	2022-03-25 00:41:57

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	3161	JavaScript (SpiderMonkey)	2020-08-24 02:51:35

#	User	Length	Language	Date
1	Adam Rankin	1713	Kotlin	2023-09-27 19:36:12
2	Phường Lên	2630	Kotlin	2020-05-18 05:46:25

#	User	Length	Language	Date
1	Oskar Haarklou Veileborg	729	Python 2	2019-10-25 14:25:40
2	Andreas Björklund	1010	Python 2	2019-05-09 20:18:59
3	Christofer Ohlsson	1236	Python 2	2017-05-03 15:02:34
4	Yanmarshus Bachtiar	1302	Python 2	2020-09-11 05:28:11
5	Hermon Mulat	1393	Python 2	2018-01-09 07:30:38

#	User	Length	Language	Date
1	Maxim Barbe	617	Python 3	2024-10-04 22:01:11
2	vance	627	Python 3	2022-11-18 05:48:20
3	Nicholas Russell Saerang	824	Python 3	2023-08-05 11:58:46
4	Paco Criado	945	Python 3	2024-03-11 23:59:31
5	Harvey Chua	950	Python 3	2023-06-12 17:54:37
6	Casper Rysgaard	957	Python 3	2021-02-25 13:02:31
7	Hidden user	1004	Python 3	2020-07-12 21:23:13
8	Vincent Tandya	1046	Python 3	2020-08-04 23:13:58
9	Yang Li	1076	Python 3	2020-09-27 14:52:22
10	Jonatan Nilsson	1138	Python 3	2023-11-02 16:58:57

#	User	Length	Language	Date
1	Felix Köhler	2225	Rust	2022-11-04 19:02:47
2	Fiat Driver	2608	Rust	2023-07-01 17:37:52
3	Isak Jägberg	2677	Rust	2022-01-10 13:37:08
4	Judith Hemp	2937	Rust	2022-04-02 20:11:59
5	Mckinley Xie	2940	Rust	2025-04-29 23:44:46
6	Nicholas Johansan	2974	Rust	2023-06-23 14:40:53
7	Ulrik Hansen	3395	Rust	2023-08-02 13:19:02
8	Joshua Ji	4839	Rust	2020-11-30 22:56:18
9	Muhammad Rais Fathin Mudzakir	10036	Rust	2021-07-06 18:01:16
10	Emil Hultcrantz	11388	Rust	2025-05-09 14:57:40

Solution running time distribution