Problem I
Antiarithmetic? — Problem Statistics

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Submissions	3254
Accepted submissions	613
Submission ratio	18.84%
Authors	678
Full solves [?]	415
Full solve Ratio	61.21%

#	User	Runtime	Language	Date
1	Erick Ross	0.10 s	C	2019-10-30 00:26:03
2	Lee Kian Boon	0.12 s	C	2020-03-07 17:05:24
3	Andrew Roberts	0.13 s	C	2019-09-10 04:11:42
4	Hidden user	0.18 s	C	2019-07-04 23:56:29
5	Paul Shaver	0.19 s	C	2016-05-17 01:41:11
6	Andreas Björklund	0.39 s	C	2020-10-30 14:25:32
7	Kaiqi Yan	0.73 s	C	2020-10-30 18:20:53
8	Hidden user	0.74 s	C	2018-04-06 10:51:03
9	Qi Ji	0.74 s	C	2018-08-09 09:15:56
10	Bergur Snorrason	0.74 s	C	2018-11-27 08:39:22

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	C++	2018-05-08 19:33:57
2	Hidden user	0.01 s	C++	2023-03-10 22:50:15
3	Thiago Felipe Bastos da Silva	0.02 s	C++	2022-10-12 02:20:16
4	Robin Christopher Yu	0.04 s	C++	2018-03-01 19:48:23
5	Trần Cảnh Nam	0.04 s	C++	2024-09-29 14:25:58
6	Abdul Malik Nurrokhman	0.05 s	C++	2018-06-08 08:30:45
7	Henry Xia	0.06 s	C++	2018-11-05 23:29:20
8	ณัฐวุฒิ เจนศักดิ์ดา	0.06 s	C++	2024-01-04 05:16:44
9	Jonatan Nilsson	0.09 s	C++	2018-05-02 07:55:58
10	Adriel Tan	0.09 s	C++	2019-02-16 07:56:17

#	User	Runtime	Language	Date
1	Udo Stenzel	0.48 s	Haskell	2020-09-27 13:41:19
2	Juan Miguel Vilar	0.84 s	Haskell	2020-12-31 17:17:00

#	User	Runtime	Language	Date
1	Rene Argento	0.32 s	Java	2021-10-28 10:56:11
2	Nguyễn Mạnh Phúc	0.36 s	Java	2018-07-12 09:07:43
3	Malte Larsson	0.45 s	Java	2016-10-20 11:58:22
4	Crystal Sharpe	0.47 s	Java	2020-07-17 22:33:57
5	William Fiset	0.49 s	Java	2016-05-17 01:03:13
6	Olav Røthe Bakken	0.49 s	Java	2018-10-30 14:34:13
7	Robert Nix	0.50 s	Java	2019-10-06 05:46:49
8	Finn Lidbetter	0.51 s	Java	2016-05-17 01:13:28
9	Nick Wu	0.53 s	Java	2016-02-17 04:16:03
10	Jan Štola	0.55 s	Java	2015-06-15 22:56:54

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.69 s	JavaScript (SpiderMonkey)	2023-03-03 13:10:02

#	User	Runtime	Language	Date
1	Yashdeep Singh	0.50 s	Nim	2024-11-12 07:18:41

#	User	Runtime	Language	Date
1	Lars Åström	0.50 s	Python 2	2018-03-19 13:44:17
2	Thomas Feld	0.54 s	Python 2	2023-03-02 13:38:37
3	Hidden user	0.65 s	Python 2	2018-02-25 13:44:49

#	User	Runtime	Language	Date
1	Robert Lyon	0.67 s	Python 3	2021-04-23 19:15:58
2	Logan Pipes	0.73 s	Python 3	2025-10-30 18:52:41
3	Nicholas Russell Saerang	0.74 s	Python 3	2023-06-29 20:53:31
4	Melfin Elisha Devout	0.74 s	Python 3	2023-07-15 10:15:58
5	Shashank Bhatt	0.74 s	Python 3	2025-10-30 19:08:52
6	Firman Syah	0.76 s	Python 3	2025-01-15 03:34:54
7	Sean Kelly	0.77 s	Python 3	2025-11-06 15:22:57
8	Iman Khodadi	0.78 s	Python 3	2024-07-10 13:31:56
9	Shehab Ahmed Hatem	0.81 s	Python 3	2024-07-30 16:09:11
10	Yohannes Melese	0.82 s	Python 3	2021-06-18 09:38:42

#	User	Runtime	Language	Date
1	Artur Khuziakhmetov	0.21 s	Rust	2025-02-06 10:25:02
2	Daniel Anker Hermansen	0.25 s	Rust	2023-10-11 09:37:40
3	Pahlevi Fikri Auliya	0.35 s	Rust	2020-11-15 08:39:00
4	Iker Lissarrague	0.81 s	Rust	2023-09-03 21:41:00

#	User	Length	Language	Date
1	Qi Ji	505	C	2018-08-09 09:15:56
2	Andrew Roberts	512	C	2019-09-10 04:11:42
3	Jesper Öqvist	628	C	2018-10-18 10:47:18
4	Kaiqi Yan	795	C	2020-10-30 18:20:53
5	Hidden user	871	C	2019-07-04 23:56:29
6	Erick Ross	894	C	2019-10-30 00:26:03
7	Lee Kian Boon	937	C	2020-03-07 17:13:24
8	Hidden user	1034	C	2018-04-06 10:51:03
9	Hidden user	1035	C	2024-06-11 18:46:51
10	Ivan Petrov	1211	C	2019-05-16 11:04:47

#	User	Length	Language	Date
1	Thomas Feld	326	C++	2020-07-21 12:22:06
2	Montgomery Bohde	329	C++	2024-03-24 03:05:02
3	Frederick Pek	401	C++	2021-05-20 18:06:01
4	Herman Karlsson	430	C++	2015-07-19 22:46:01
5	Johan Wind	448	C++	2014-09-30 21:25:52
6	Luciano Arnaldo Romero Calla	455	C++	2024-02-29 23:18:49
7	Markus Mathiasen	456	C++	2021-12-10 18:28:37
8	Viraj Maddur	470	C++	2018-03-23 05:03:56
9	Krisztián Zaja	470	C++	2019-06-21 17:06:22
10	Gursimar Singh Miglani	470	C++	2021-12-06 00:16:16

#	User	Length	Language	Date
1	Udo Stenzel	667	Haskell	2020-09-27 13:41:19
2	Juan Miguel Vilar	4193	Haskell	2020-12-31 17:17:00

#	User	Length	Language	Date
1	Drew Hoover	847	Java	2015-10-13 15:59:34
2	Shreyas Jamadagni	999	Java	2024-10-13 10:28:02
3	Robert Nix	1009	Java	2019-10-06 05:46:49
4	Crystal Sharpe	1070	Java	2020-07-17 22:32:07
5	Paul Boddington	1078	Java	2016-04-17 02:47:45
6	Frank Ruskey	1177	Java	2015-10-23 00:55:42
7	Isaac Lee	1276	Java	2020-06-07 08:45:12
8	Yuvraj Aryan Singh	1301	Java	2024-10-13 11:13:37
9	Micah Stairs	1303	Java	2016-10-26 21:58:32
10	Olav Røthe Bakken	1337	Java	2018-10-30 14:34:13

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	550	JavaScript (SpiderMonkey)	2023-03-03 13:10:02

#	User	Length	Language	Date
1	Yashdeep Singh	1627	Nim	2024-11-12 07:18:41

#	User	Length	Language	Date
1	Thomas Feld	346	Python 2	2023-03-02 13:38:37
2	Hidden user	477	Python 2	2018-02-25 13:44:49
3	Lars Åström	605	Python 2	2018-03-19 13:46:34

#	User	Length	Language	Date
1	Iman Khodadi	258	Python 3	2024-07-10 14:22:49
2	Shashank Bhatt	411	Python 3	2025-10-30 19:08:52
3	Hayden Dansereau	412	Python 3	2023-12-08 22:19:03
4	Nicholas Russell Saerang	425	Python 3	2023-06-29 20:53:31
5	Nate Lowry	425	Python 3	2023-10-30 10:46:45
6	gnaneswari lolugu	425	Python 3	2024-03-10 02:04:58
7	Ong Weng Qi	425	Python 3	2024-04-20 17:57:04
8	Shiven Patel	425	Python 3	2024-05-24 02:53:06
9	Lowell Doiron	425	Python 3	2024-06-28 08:25:07
10	Hrant Hovhannisyan	464	Python 3	2025-12-11 06:56:41

#	User	Length	Language	Date
1	Artur Khuziakhmetov	870	Rust	2025-02-06 09:52:37
2	Iker Lissarrague	2004	Rust	2023-09-03 21:55:59
3	Pahlevi Fikri Auliya	3313	Rust	2020-11-15 08:39:00
4	Daniel Anker Hermansen	24381	Rust	2023-10-11 09:37:40

Solution running time distribution