Problem A
Primary Arithmetic — Problem Statistics

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Submissions	3471
Accepted submissions	1003
Submission ratio	28.90%
Authors	996
Accepted authors	858
Author ratio	86.14%

#	User	Runtime	Language	Date
1	Klas af Geijerstam	0.02	C#	2017-09-13 22:04:17
2	Marek	0.02	C#	2018-06-20 19:03:16
3	Andrzej Krajniak	0.02	C#	2018-06-20 20:14:00
4	Ryan Hemmila	0.02	C#	2019-09-07 21:46:00
5	Emil Franzen	0.02	C#	2019-12-03 21:39:24
6	Per Eriksson	0.02	C#	2021-07-09 00:57:04
7	David Parker	0.02	C#	2022-03-16 11:55:16
8	Nikolai Valkamo	0.02	C#	2022-03-26 15:33:11
9	John Franklin	0.02	C#	2022-03-26 16:05:19
10	Cameron Johnson	0.02	C#	2022-03-26 16:45:08

#	User	Runtime	Language	Date
1	Hidden user	0.01	Common Lisp	2019-07-11 02:20:42
2	David Cawthon	0.02	Common Lisp	2019-05-19 23:08:43

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04	F#	2023-04-17 17:45:16

#	User	Runtime	Language	Date
1	Hidden user	0.01	Go	2018-10-11 09:11:25
2	Norbert Voelker	0.07	Go	2021-08-19 23:31:22

#	User	Runtime	Language	Date
1	Brent Yorgey	0	Haskell	2018-06-11 06:42:36
2	Erik Tjøswold	0.01	Haskell	2019-01-21 18:35:52
3	Ryan Yates	0.01	Haskell	2019-09-10 04:19:37
4	Anders Aarsæther	0.01	Haskell	2021-11-16 10:41:44

#	User	Runtime	Language	Date
1	Nick Wu	0.05	Java	2017-09-18 23:19:28
2	Erik Baalhuis	0.05	Java	2017-09-30 00:08:52
3	Micah Stairs	0.05	Java	2017-10-11 05:51:09
4	Mehdi Maick	0.05	Java	2017-10-28 03:21:37
5	Lizhong Wang	0.05	Java	2018-04-15 10:24:08
6	Liam Keliher	0.05	Java	2018-08-07 17:34:51
7	James Black	0.05	Java	2018-08-10 00:29:15
8	Love Engman	0.05	Java	2018-11-04 18:33:58
9	Bala Krishna	0.05	Java	2024-08-13 10:38:12
10	Siddhartha Edara	0.06	Java	2017-10-01 20:45:29

#	User	Runtime	Language	Date
1	Ram Basnet	0.05	JavaScript (Node.js)	2018-11-30 02:05:24
2	Peter Kedemo	0.42	JavaScript (Node.js)	2020-01-11 22:29:39

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01	JavaScript (SpiderMonkey)	2017-09-24 02:30:14
2	Christian Cederquist	0.02	JavaScript (SpiderMonkey)	2023-02-09 12:52:28

#	User	Runtime	Language	Date
1	Johnny Baloney	0.13	Kotlin	2022-01-07 18:34:55
2	Hidden user	0.14	Kotlin	2020-02-23 06:39:46
3	James WIlliams	0.18	Kotlin	2020-09-21 08:53:13
4	Adam Rankin	0.19	Kotlin	2023-05-02 06:28:28
5	Aksel Holbek Sørbye	0.19	Kotlin	2023-09-14 20:13:37
6	Adam Koprowski	0.2	Kotlin	2020-08-21 23:02:07
7	Mohsen Dehbashi	0.21	Kotlin	2019-07-10 06:43:41
8	Dominic Blaich	0.21	Kotlin	2019-08-05 12:09:41
9	Mohamadhassan Ebrahimi	0.22	Kotlin	2019-10-29 17:50:03

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	0	OCaml	2021-01-21 10:50:35

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0	Pascal	2020-03-08 11:57:49

#	User	Runtime	Language	Date
1	Herman Karlsson	0.02	Python 3	2017-09-12 17:53:04
2	Marcus Dicander	0.02	Python 3	2017-09-12 19:09:03
3	Torstein Strømme	0.02	Python 3	2017-09-29 16:23:29
4	Michael Pfeifer	0.02	Python 3	2017-10-09 18:34:30
5	James Hamm	0.02	Python 3	2017-11-12 20:13:00
6	Hakan Celik	0.02	Python 3	2018-04-10 08:13:44
7	Joseph Campbell	0.02	Python 3	2018-05-20 02:00:04
8	Greg Draghici	0.02	Python 3	2018-06-01 07:13:53
9	Kasra Ghodsi	0.02	Python 3	2018-07-25 00:44:35
10	Vincent Tandya	0.02	Python 3	2018-07-30 22:17:00

#	User	Runtime	Language	Date
1	Macdara mac an tSionnaigh	0.04	Ruby	2019-11-04 22:09:56
2	Hidden user	0.05	Ruby	2019-05-29 16:43:10
3	Kieran Maharaj	0.05	Ruby	2020-06-30 13:20:59
4	Thomas Feld	0.06	Ruby	2023-08-16 09:17:25

#	User	Runtime	Language	Date
1	Loïc CARR	0	Rust	2019-04-04 17:16:19
2	Isak Jägberg	0	Rust	2019-04-28 09:57:59
3	Shivam Thakur	0	Rust	2019-06-29 17:58:55
4	Zack Groff	0	Rust	2019-08-02 20:10:40
5	Thiago Poeiras Silva	0	Rust	2019-09-02 10:29:17
6	Anthony Audoin	0	Rust	2021-01-23 16:15:46
7	Bas Dirks	0	Rust	2022-01-19 23:31:17
8	Zachary DeStefano	0	Rust	2024-07-09 00:27:30

#	User	Length	Language	Date
1	Lawry Sorenson	165	C	2023-08-06 14:15:12
2	Yong Mao	432	C	2022-09-27 02:22:48
3	Siddharth Adusumelli	496	C	2021-09-08 20:09:10
4	Raymond Yang	511	C	2021-07-02 23:38:43
5	Simen Keiland Fondevik	526	C	2017-10-09 17:16:47
6	Sujan Roy	610	C	2020-07-08 17:08:51
7	Mohamed Elbessam	616	C	2019-09-18 21:09:38
8	Mikael K Eriksson	649	C	2021-11-26 19:43:53
9	Leslie Yip	681	C	2022-10-11 16:33:39
10	Andrew Roberts	764	C	2019-06-02 19:31:02

#	User	Length	Language	Date
1	Ryan Hemmila	1142	C#	2019-09-07 21:46:00
2	Klas af Geijerstam	1229	C#	2017-09-13 22:04:17
3	Marek	1326	C#	2018-06-20 19:03:16
4	Per Eriksson	1649	C#	2021-07-09 00:57:04
5	Emil Franzen	1744	C#	2019-12-03 21:39:24
6	Cameron Johnson	1929	C#	2022-03-26 16:45:08
7	Nikolai Valkamo	2291	C#	2022-03-26 15:33:11
8	David Parker	2898	C#	2022-03-16 11:55:16
9	John Franklin	3200	C#	2022-03-26 16:05:19
10	Andrzej Krajniak	7684	C#	2018-06-20 20:14:00

#	User	Length	Language	Date
1	William Gan	389	C++	2018-04-12 17:06:33
2	Caeden Whitaker	393	C++	2020-12-09 03:59:05
3	Hyunjun Lee	413	C++	2022-10-28 14:32:01
4	人外沙耶	416	C++	2020-12-19 07:31:33
5	Jirayu Burapacheep	435	C++	2019-09-07 21:35:32
6	Clement Oh	448	C++	2023-08-14 18:03:42
7	Sichao Yang	451	C++	2017-10-01 20:40:30
8	Jun Yan	452	C++	2024-07-30 06:49:06
9	Hidden user	463	C++	2023-09-12 21:40:29
10	Markus Mathiasen	481	C++	2021-09-08 19:56:36

#	User	Length	Language	Date
1	Hidden user	850	Common Lisp	2019-07-11 02:20:42
2	David Cawthon	1135	Common Lisp	2019-05-19 23:08:43

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	800	F#	2023-04-17 17:45:16

#	User	Length	Language	Date
1	Hidden user	836	Go	2018-10-11 09:11:25
2	Norbert Voelker	898	Go	2021-08-19 23:42:32

#	User	Length	Language	Date
1	Ryan Yates	743	Haskell	2019-09-10 04:19:37
2	Anders Aarsæther	1000	Haskell	2021-11-16 10:41:44
3	Brent Yorgey	1091	Haskell	2018-06-11 06:42:36
4	Erik Tjøswold	1316	Haskell	2019-01-21 18:35:52

#	User	Length	Language	Date
1	Doug Goodman	603	Java	2018-03-31 19:23:12
2	Auburn Ford	628	Java	2019-03-07 00:15:12
3	Caio Medeiros	674	Java	2022-01-16 17:57:08
4	Eric Leow Yu Quan	724	Java	2020-12-30 07:24:59
5	Christopher Acosta	730	Java	2019-03-07 00:56:45
6	Hidden user	744	Java	2019-08-29 22:00:56
7	Hidden user	753	Java	2021-07-25 17:31:11
8	Benjamin Wang	757	Java	2021-07-02 23:24:16
9	Blake Bleem	769	Java	2021-01-19 22:20:32
10	Srishti Ganu	773	Java	2021-10-25 01:08:33

#	User	Length	Language	Date
1	Peter Kedemo	801	JavaScript (Node.js)	2020-01-11 22:29:39
2	Ram Basnet	1088	JavaScript (Node.js)	2018-11-30 02:05:24

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	495	JavaScript (SpiderMonkey)	2017-09-24 02:30:14
2	Christian Cederquist	498	JavaScript (SpiderMonkey)	2023-02-09 12:52:28

#	User	Length	Language	Date
1	Adam Koprowski	583	Kotlin	2020-08-21 23:02:07
2	Mohsen Dehbashi	613	Kotlin	2019-07-10 06:43:41
3	Mohamadhassan Ebrahimi	734	Kotlin	2019-10-29 17:50:03
4	Aksel Holbek Sørbye	748	Kotlin	2023-09-14 20:13:37
5	Johnny Baloney	1041	Kotlin	2022-01-07 18:38:30
6	Dominic Blaich	1362	Kotlin	2019-08-05 12:09:41
7	Hidden user	1367	Kotlin	2020-02-23 06:39:46
8	Adam Rankin	1462	Kotlin	2023-05-02 06:28:28
9	James WIlliams	5182	Kotlin	2020-09-21 08:53:13

#	User	Length	Language	Date
1	Oskar Haarklou Veileborg	898	OCaml	2021-01-21 10:50:35

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1149	Pascal	2020-03-08 11:57:49

#	User	Length	Language	Date
1	Benjamin Z White	209	Python 3	2023-03-31 23:30:17
2	Farzam Abrishami	300	Python 3	2024-01-28 02:30:20
3	Kelly Dance	344	Python 3	2022-08-12 01:45:04
4	Eva Noelle Moniz	364	Python 3	2019-08-29 22:17:37
5	Herman Karlsson	365	Python 3	2017-09-12 17:53:04
6	Hidden user	372	Python 3	2021-05-02 16:51:10
7	Roger Bongers	373	Python 3	2020-08-10 23:03:05
8	Thibault Raffaillac	389	Python 3	2019-11-27 15:04:21
9	Matthew Farias	397	Python 3	2020-12-07 03:31:07
10	Ricardo Gabriel	400	Python 3	2018-12-25 03:08:07

#	User	Length	Language	Date
1	Thomas Feld	136	Ruby	2023-08-16 09:27:47
2	Hidden user	419	Ruby	2019-05-29 16:43:10
3	Kieran Maharaj	733	Ruby	2020-06-30 13:20:59
4	Macdara mac an tSionnaigh	740	Ruby	2019-11-04 22:09:56

#	User	Length	Language	Date
1	Loïc CARR	926	Rust	2019-04-04 17:16:19
2	Anthony Audoin	965	Rust	2021-01-23 16:15:46
3	Bas Dirks	1092	Rust	2022-01-19 23:31:17
4	Zack Groff	1229	Rust	2019-08-02 20:10:40
5	Zachary DeStefano	1302	Rust	2024-07-09 00:27:30
6	Thiago Poeiras Silva	1452	Rust	2019-09-02 10:29:17
7	Shivam Thakur	1790	Rust	2019-06-29 17:58:55
8	Isak Jägberg	1836	Rust	2019-04-28 09:57:59

Solution running time distribution