Problem A
Bits — Problem Statistics

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Submissions	5125
Accepted submissions	2170
Submission ratio	42.34%
Authors	2077
Accepted authors	1819
Author ratio	87.58%

#	User	Runtime	Language	Date
1	Mesut Ekici	0.02 s	C#	2016-10-16 19:59:58
2	Przemysław Curzytek	0.02 s	C#	2016-11-15 00:54:22
3	Hidden user	0.02 s	C#	2017-01-14 16:23:32
4	Nick Russell	0.02 s	C#	2018-06-20 18:27:26
5	Göran Andersson	0.02 s	C#	2022-06-07 22:09:54
6	Ugnius Skučas	0.03 s	C#	2016-10-16 23:52:16
7	Khin Nyunt	0.03 s	C#	2017-04-15 18:36:19
8	Nelson Penn	0.03 s	C#	2017-09-22 03:23:31
9	Matt Bailey	0.03 s	C#	2018-01-21 22:06:22
10	Chase Oberg	0.03 s	C#	2018-02-17 16:01:31

#	User	Runtime	Language	Date
1	Philippos Boon Alexaki	0.02 s	Common Lisp	2019-11-19 14:24:26
2	David Cawthon	0.04 s	Common Lisp	2019-05-19 01:52:26
3	Evan Magill	0.06 s	Common Lisp	2024-09-03 19:20:54

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2023-01-12 20:33:30

#	User	Runtime	Language	Date
1	Erik Rairden	0.02 s	Go	2021-01-01 03:51:18
2	Norbert Voelker	0.02 s	Go	2021-07-14 19:45:43
3	Krzysztof Gibuła	0.08 s	Go	2021-07-01 00:33:06
4	Ainun Nazieb	0.10 s	Go	2020-09-30 16:29:43

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2024-05-07 11:28:10
2	Blake Hyde	0.01 s	Haskell	2017-08-22 05:19:54
3	Brent Yorgey	0.01 s	Haskell	2017-10-24 03:00:05
4	Qi Ji	0.01 s	Haskell	2018-09-25 23:09:35
5	Tim Put	0.01 s	Haskell	2020-09-22 17:02:04
6	Hidden user	0.01 s	Haskell	2021-06-04 14:49:07
7	Stian	0.01 s	Haskell	2021-10-13 20:39:37
8	Fulano de Tal	0.01 s	Haskell	2022-02-02 10:02:10
9	Hidden user	0.01 s	Haskell	2022-12-01 16:47:26
10	Matthew Johnson	0.02 s	Haskell	2017-01-07 09:31:29

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2024-12-13 12:54:38
2	Martijn Muijsers	0.06 s	Java	2016-10-16 02:58:15
3	Liam Keliher	0.06 s	Java	2016-10-24 23:15:26
4	Samuel Klingström	0.06 s	Java	2017-06-16 11:07:05
5	Winston Cheung	0.06 s	Java	2017-09-03 05:10:13
6	Константин Йовков	0.06 s	Java	2018-02-27 11:13:38
7	Hidden user	0.06 s	Java	2018-05-02 19:49:46
8	Daniel Moyer	0.07 s	Java	2016-10-15 20:10:36
9	Michel Langeveld	0.07 s	Java	2016-11-13 08:41:34
10	Kevin Chevalier	0.07 s	Java	2018-01-09 00:03:34

#	User	Runtime	Language	Date
1	Daniel Iversen Sato	0.08 s	JavaScript (Node.js)	2024-09-08 17:30:56
2	Ram Basnet	0.09 s	JavaScript (Node.js)	2018-10-02 20:28:00
3	Samuel Högfeldt	0.13 s	JavaScript (Node.js)	2022-08-24 12:29:41
4	Howard Tin Chi Chan	0.46 s	JavaScript (Node.js)	2021-02-06 18:46:54
5	Khin Nyunt	0.51 s	JavaScript (Node.js)	2021-09-15 17:40:27

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-10-26 01:25:33
2	Tor Nordqvist	0.02 s	JavaScript (SpiderMonkey)	2016-11-15 16:46:35
3	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-04-06 17:05:05
4	Peter Kedemo	0.11 s	JavaScript (SpiderMonkey)	2016-10-15 21:49:00
5	Hidden user	0.11 s	JavaScript (SpiderMonkey)	2018-01-28 02:26:38
6	Paul Leung	0.12 s	JavaScript (SpiderMonkey)	2017-04-19 14:33:58

#	User	Runtime	Language	Date
1	Timothy Gaede	0.51 s	Julia	2024-04-23 16:38:58
2	Danny Robinson	0.70 s	Julia	2023-10-12 02:36:57

#	User	Runtime	Language	Date
1	Adam Rankin	0.19 s	Kotlin	2023-05-07 04:36:59
2	Dayan Ruben Gonzalez	0.21 s	Kotlin	2020-09-28 15:34:56
3	Hidden user	0.22 s	Kotlin	2017-11-11 00:39:53
4	Magnus Olsson	0.23 s	Kotlin	2018-09-24 23:47:50
5	Björn Holm	0.24 s	Kotlin	2019-10-08 18:38:54
6	Troels Bjerre Lund	0.25 s	Kotlin	2019-11-10 23:08:41
7	Eric Huynh	0.27 s	Kotlin	2019-03-19 20:24:41
8	Zaw Myat	0.37 s	Kotlin	2024-03-18 14:37:15

#	User	Runtime	Language	Date
1	Artemis Ngoh	0.00 s	OCaml	2024-04-03 18:55:54
2	luna	0.00 s	OCaml	2024-04-04 01:25:36

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-06-25 20:57:44

#	User	Runtime	Language	Date
1	Greg Gorlen	0.03 s	Perl	2024-05-27 18:53:11

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	PHP	2016-11-27 00:51:09
2	Susanne Ragnemalm	0.01 s	PHP	2018-05-22 21:56:26
3	Tom Merzenich	0.01 s	PHP	2023-11-28 03:40:57

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.04 s	Prolog	2018-12-10 18:35:30

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Python 2	2016-10-15 20:38:19
2	Denis Godunov	0.04 s	Python 2	2017-05-26 18:05:22
3	Lars Tveito	0.04 s	Python 2	2017-08-31 01:14:17
4	Jesper Öqvist	0.04 s	Python 2	2018-11-04 15:45:06
5	James Lawson	0.04 s	Python 2	2019-04-03 15:32:54
6	Godmar Back	0.05 s	Python 2	2016-10-15 20:06:53
7	Lawrence Qiu	0.05 s	Python 2	2016-10-15 20:18:52
8	Ted Morin	0.05 s	Python 2	2016-10-15 20:19:48
9	Eric Mikulin	0.05 s	Python 2	2016-10-15 20:34:12
10	Zara Lim	0.05 s	Python 2	2016-10-15 22:42:42

#	User	Runtime	Language	Date
1	John Barczynski	0.02 s	Python 3	2016-10-16 02:41:21
2	Tore Norderud	0.02 s	Python 3	2016-11-07 19:15:14
3	Wayne	0.02 s	Python 3	2016-11-13 20:15:00
4	Timothy Bautista	0.02 s	Python 3	2017-02-08 00:09:35
5	Rick May	0.02 s	Python 3	2017-03-03 20:27:57
6	Roberto Campisi	0.02 s	Python 3	2017-09-16 14:23:40
7	Kasra Ghodsi	0.02 s	Python 3	2018-05-25 02:53:34
8	Swaraj Dhumne	0.03 s	Python 3	2016-10-15 20:06:20
9	Mehrdad Jafari Giv	0.03 s	Python 3	2016-10-15 20:07:56
10	Victor Zheng	0.03 s	Python 3	2016-10-15 20:10:51

#	User	Runtime	Language	Date
1	Erik Rydbert	0.04 s	Ruby	2016-10-18 05:40:53
2	Matthew Clemons	0.05 s	Ruby	2017-05-20 03:38:05
3	Carter Hough	0.05 s	Ruby	2018-09-03 18:37:28
4	Hidden user	0.05 s	Ruby	2019-10-10 12:20:43
5	Macdara mac an tSionnaigh	0.05 s	Ruby	2019-11-06 03:07:28
6	Thomas Feld	0.07 s	Ruby	2023-02-10 13:15:07
7	Hidden user	0.08 s	Ruby	2019-02-18 16:03:41
8	Martin Larsson	0.13 s	Ruby	2017-03-03 20:05:08

#	User	Length	Language	Date
1	Andrew Roberts	406	C	2017-09-07 19:53:38
2	Giang Trương Gia Lạc	410	C	2021-07-23 10:38:42
3	Mohammed Jaouhari	432	C	2018-09-04 19:15:28
4	Fei Dong	453	C	2021-02-23 17:13:19
5	Hidden user	464	C	2017-02-07 18:24:04
6	Raymond Yang	465	C	2021-07-02 23:12:33
7	Adam eldelbani	502	C	2025-01-10 16:14:08
8	Ian Howell	568	C	2018-06-12 20:56:17
9	Yao Wang	569	C	2019-04-09 19:23:15
10	Surajit Jati	595	C	2017-02-14 20:16:17

#	User	Length	Language	Date
1	Göran Andersson	518	C#	2022-06-07 22:09:54
2	Ahmad Barhamje	603	C#	2022-11-25 16:46:56
3	Ugnius Skučas	731	C#	2016-10-16 23:52:16
4	Emil Clemedson	923	C#	2021-09-27 14:56:32
5	Mesut Ekici	957	C#	2016-10-16 19:59:58
6	Hidden user	983	C#	2017-01-18 18:09:22
7	Chase Oberg	1019	C#	2018-02-17 16:01:31
8	Brutus Hansson	1145	C#	2019-01-23 11:30:47
9	Jakob Frank	1215	C#	2018-10-03 16:13:39
10	Nelson Penn	1266	C#	2017-09-22 03:23:31

#	User	Length	Language	Date
1	Hidden user	158	C++	2024-10-25 15:30:55
2	Ron Ryvchin	165	C++	2023-05-03 23:18:24
3	Ambrose Liew Cheng Yuan	224	C++	2021-06-03 15:43:18
4	Sean Purcell	234	C++	2016-10-15 20:13:19
5	Modan Han	237	C++	2016-10-15 05:45:39
6	Lee Zheng Han	242	C++	2022-12-06 20:40:15
7	Noah Weninger	247	C++	2016-10-21 23:41:30
8	Markus Mathiasen	249	C++	2021-09-08 18:56:13
9	Garðar Ingvarsson	268	C++	2019-04-23 03:30:12
10	Michael Straube	268	C++	2023-07-20 07:50:51

#	User	Length	Language	Date
1	Evan Magill	305	Common Lisp	2024-09-03 19:20:54
2	Philippos Boon Alexaki	415	Common Lisp	2019-11-19 14:24:26
3	David Cawthon	701	Common Lisp	2019-05-19 01:52:26

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	605	F#	2023-01-12 20:33:30

#	User	Length	Language	Date
1	Ainun Nazieb	518	Go	2020-09-30 16:29:43
2	Krzysztof Gibuła	525	Go	2021-07-01 00:33:06
3	Erik Rairden	616	Go	2021-01-01 03:51:18
4	Norbert Voelker	1199	Go	2021-07-14 19:45:43

#	User	Length	Language	Date
1	Qi Ji	204	Haskell	2018-09-25 23:09:35
2	Joshua Coward	215	Haskell	2022-01-03 05:10:32
3	Tobias Vehkajärvi	256	Haskell	2018-08-31 10:49:45
4	Øyvind Almli	298	Haskell	2022-04-13 14:49:06
5	Esther Chong	378	Haskell	2018-01-31 03:21:27
6	Brent Yorgey	384	Haskell	2017-10-24 03:00:05
7	Jan Hrček	395	Haskell	2021-03-12 15:16:34
8	Erik Hesselink	410	Haskell	2020-04-19 12:13:27
9	César Antonio Carvajal de la Haza	418	Haskell	2017-05-01 01:44:12
10	Matthew Craven	422	Haskell	2020-02-25 23:22:54

#	User	Length	Language	Date
1	Quan Tran	396	Java	2017-04-19 21:20:36
2	Thore Tiemann	426	Java	2016-11-04 17:08:10
3	Stela Palii	430	Java	2017-11-25 06:13:23
4	Hidden user	435	Java	2017-01-24 13:59:42
5	Ruiming Xiong	438	Java	2016-10-15 20:07:47
6	Saad Slimà	443	Java	2017-09-06 16:40:59
7	Pedram Asadzadhe	443	Java	2018-05-21 23:27:55
8	Erin Anne Day	444	Java	2018-01-18 02:19:27
9	Jacob Alhadeff	445	Java	2017-02-21 20:25:24
10	Thomas King	446	Java	2019-09-24 00:04:04

#	User	Length	Language	Date
1	Ram Basnet	571	JavaScript (Node.js)	2018-10-02 20:28:00
2	Daniel Iversen Sato	655	JavaScript (Node.js)	2024-09-08 17:41:21
3	Howard Tin Chi Chan	681	JavaScript (Node.js)	2021-02-06 18:46:54
4	Samuel Högfeldt	890	JavaScript (Node.js)	2022-08-24 12:29:41
5	Khin Nyunt	1043	JavaScript (Node.js)	2021-09-15 17:40:27

#	User	Length	Language	Date
1	Christian Cederquist	229	JavaScript (SpiderMonkey)	2023-04-06 17:05:05
2	Peter Kedemo	349	JavaScript (SpiderMonkey)	2016-10-15 21:49:00
3	Bjørn Chr. Soltvedt	356	JavaScript (SpiderMonkey)	2016-10-26 01:25:33
4	Hidden user	363	JavaScript (SpiderMonkey)	2018-01-28 02:26:38
5	Tor Nordqvist	462	JavaScript (SpiderMonkey)	2016-11-15 16:46:35
6	Paul Leung	691	JavaScript (SpiderMonkey)	2017-04-19 14:33:58

#	User	Length	Language	Date
1	Danny Robinson	122	Julia	2023-10-12 02:36:57
2	Timothy Gaede	828	Julia	2024-04-23 16:38:58

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	367	Kotlin	2020-09-28 15:34:56
2	Magnus Olsson	369	Kotlin	2018-09-24 23:45:40
3	Troels Bjerre Lund	427	Kotlin	2019-11-10 23:08:41
4	Adam Rankin	490	Kotlin	2023-05-07 04:36:59
5	Hidden user	530	Kotlin	2017-11-11 00:39:53
6	Eric Huynh	552	Kotlin	2019-03-19 20:24:41
7	Zaw Myat	1011	Kotlin	2024-03-18 14:37:15
8	Björn Holm	2373	Kotlin	2019-10-08 18:38:54

#	User	Length	Language	Date
1	Artemis Ngoh	326	OCaml	2024-04-03 18:55:54
2	luna	422	OCaml	2024-04-04 01:25:36

#	User	Length	Language	Date
1	Ingemar Ragnemalm	761	Pascal	2018-06-25 20:57:44

#	User	Length	Language	Date
1	Greg Gorlen	384	Perl	2024-05-27 18:53:11

#	User	Length	Language	Date
1	Hidden user	389	PHP	2016-11-27 00:51:09
2	Susanne Ragnemalm	404	PHP	2018-05-22 21:56:26
3	Tom Merzenich	487	PHP	2023-11-28 03:40:57

#	User	Length	Language	Date
1	Andriy Zyevakov	652	Prolog	2018-12-10 18:35:30

#	User	Length	Language	Date
1	Johan Wind	118	Python 2	2017-05-29 18:47:43
2	Harald Andersson	132	Python 2	2017-06-15 16:07:05
3	Thomas Feld	143	Python 2	2019-08-28 14:45:57
4	Asher Trockman	161	Python 2	2016-10-18 04:17:18
5	Matthew Fahrbach	172	Python 2	2016-11-18 00:20:58
6	Emerson Leonardo Lucena	176	Python 2	2018-09-22 03:09:36
7	Guan Yang Ze	181	Python 2	2019-09-20 10:41:37
8	Johann Ly	185	Python 2	2018-08-19 00:06:22
9	Noah Ó Donnaile	200	Python 2	2016-11-30 04:57:34
10	Lars Tveito	203	Python 2	2017-08-31 01:14:17

#	User	Length	Language	Date
1	Nguyên Khôi Đỗ	82	Python 3	2025-03-26 15:59:57
2	Kylind Reagan	85	Python 3	2025-03-26 17:27:01
3	Alexandre Douard	94	Python 3	2023-09-30 21:09:14
4	Guk Yi Siong	96	Python 3	2023-07-31 14:39:01
5	Thomas Draper	104	Python 3	2023-10-06 05:47:00
6	Ahmed Chamseddine	118	Python 3	2024-09-13 10:28:04
7	Brandon Mitchell	120	Python 3	2019-10-29 21:45:51
8	Christian Blumenthal	122	Python 3	2020-12-02 18:37:23
9	Erik Buis	123	Python 3	2021-11-22 22:41:22
10	Wayne	126	Python 3	2016-11-13 20:15:00

#	User	Length	Language	Date
1	Thomas Feld	70	Ruby	2023-02-10 13:15:07
2	Hidden user	126	Ruby	2019-10-10 12:22:02
3	Hidden user	214	Ruby	2019-02-18 16:03:41
4	Erik Rydbert	225	Ruby	2016-10-18 05:40:53
5	Martin Larsson	229	Ruby	2017-03-03 20:05:08
6	Macdara mac an tSionnaigh	240	Ruby	2019-11-06 03:07:28
7	Matthew Clemons	462	Ruby	2017-05-20 03:38:05
8	Carter Hough	1582	Ruby	2018-09-03 18:37:28

#	User	Length	Language	Date
1	David Aldenbro	232	Rust	2023-10-26 21:42:01
2	Vincent Lagerros	335	Rust	2025-01-26 22:08:31
3	David Rasch	397	Rust	2022-09-22 17:28:30
4	Adam Gausmann	410	Rust	2019-09-20 22:32:52
5	Artur Khuziakhmetov	422	Rust	2022-08-09 14:52:56
6	Bas Dirks	429	Rust	2022-01-12 21:28:29
7	Anders Lindskov Kloborg	598	Rust	2020-07-26 15:04:14
8	Loïc CARR	643	Rust	2019-04-03 14:48:35
9	Anthony Audoin	667	Rust	2021-01-23 16:09:23
10	Robert Janczewski	700	Rust	2020-02-06 10:28:59

Solution running time distribution