Problem A
Popular Vote — Problem Statistics

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Submissions	9134
Accepted submissions	3831
Submission ratio	41.94%
Authors	3657
Full solves [?]	3337
Full solve Ratio	91.25%

#	User	Runtime	Language	Date
1	Michael Wichlinski	0.00 s	Ada	2025-02-17 03:45:05

#	User	Runtime	Language	Date
1	Patrick Johannessen	0.02 s	C#	2015-12-16 01:48:25
2	Luiz Miranda	0.02 s	C#	2016-04-03 05:16:33
3	Khin Nyunt	0.02 s	C#	2016-04-29 15:40:16
4	Robert Low	0.02 s	C#	2016-07-21 17:23:04
5	Duelene Olson	0.02 s	C#	2016-09-26 22:40:46
6	Klas af Geijerstam	0.02 s	C#	2017-04-12 12:05:43
7	Yin Thiri Khaing	0.02 s	C#	2017-06-05 09:28:14
8	Amirmasoud Ramezani	0.02 s	C#	2017-06-11 07:20:07
9	Faisal Rahman	0.02 s	C#	2017-11-12 11:37:13
10	Ryan Randhawa	0.02 s	C#	2017-11-12 22:22:59

#	User	Runtime	Language	Date
1	Leslie Yip	0.00 s	COBOL	2022-10-01 18:28:37

#	User	Runtime	Language	Date
1	David Cawthon	0.03 s	Common Lisp	2019-05-15 03:37:39

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-12-13 19:10:32

#	User	Runtime	Language	Date
1	Krzysztof Gibuła	0.02 s	Go	2019-03-17 14:49:40
2	Markus Takalo	0.02 s	Go	2019-05-05 15:27:51
3	Oskar Johanson	0.02 s	Go	2019-10-12 10:19:40
4	Hidden user	0.02 s	Go	2019-10-31 17:10:20
5	Norbert Voelker	0.02 s	Go	2021-07-12 23:12:11
6	Diamond	0.02 s	Go	2022-11-05 04:41:26
7	Hidden user	0.02 s	Go	2024-10-01 07:11:05
8	Ian Howell	0.04 s	Go	2019-07-29 22:56:40
9	Jonathan Ström	0.08 s	Go	2019-02-18 23:33:59

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2024-05-23 14:31:37
2	Trung Do	0.00 s	Haskell	2025-01-11 23:05:58
3	Patrik Lilja	0.01 s	Haskell	2016-02-22 23:52:50
4	Blake Hyde	0.01 s	Haskell	2017-08-21 17:20:14
5	Brent Yorgey	0.01 s	Haskell	2017-10-22 23:49:36
6	Jim O'Brien	0.01 s	Haskell	2019-05-10 07:14:27
7	Aurélien Pepin	0.01 s	Haskell	2019-09-10 19:07:28
8	Hidden user	0.01 s	Haskell	2019-10-03 18:45:49
9	Yen Tien	0.01 s	Haskell	2020-06-02 00:34:37
10	Jan Hrček	0.01 s	Haskell	2021-03-31 18:19:03

#	User	Runtime	Language	Date
1	Khang Hoang Truong Manh	0.06 s	Java	2015-12-06 13:52:09
2	Martijn Muijsers	0.06 s	Java	2016-10-05 02:29:48
3	Michael Laszlo	0.06 s	Java	2016-12-25 10:17:03
4	Ronald Rojas	0.06 s	Java	2017-06-25 19:12:45
5	Finn Lidbetter	0.06 s	Java	2017-08-28 14:13:13
6	Jeremy Wood	0.06 s	Java	2017-09-30 19:41:49
7	Igor Durovic	0.06 s	Java	2017-11-02 02:38:33
8	Lizhong Wang	0.06 s	Java	2018-04-06 21:00:43
9	Nigel Quinn	0.06 s	Java	2018-06-06 17:01:44
10	Desireé af Geijerstam	0.06 s	Java	2018-06-20 17:35:16

#	User	Runtime	Language	Date
1	Maycon Douglas Santos	0.05 s	JavaScript (Node.js)	2023-11-03 02:41:57
2	Tanner Winkelman	0.06 s	JavaScript (Node.js)	2018-07-19 02:29:51
3	Sander Hellesø	0.06 s	JavaScript (Node.js)	2019-04-16 07:51:09
4	Bashar Altaleb	0.09 s	JavaScript (Node.js)	2022-04-16 12:37:52
5	Jonas Bergling	0.09 s	JavaScript (Node.js)	2022-05-06 16:51:37
6	Kasper Witt	0.09 s	JavaScript (Node.js)	2022-10-16 18:36:39
7	Jayakumar S	0.42 s	JavaScript (Node.js)	2021-01-09 08:35:30
8	Mikael Fiala-Lundström	0.43 s	JavaScript (Node.js)	2021-06-21 22:37:01
9	Khin Nyunt	0.43 s	JavaScript (Node.js)	2021-12-11 09:52:10

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-28 19:26:39
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-01-23 20:31:57
3	Gabriel Lau	0.01 s	JavaScript (SpiderMonkey)	2016-03-24 21:23:40
4	J M	0.01 s	JavaScript (SpiderMonkey)	2016-10-08 01:16:17
5	Amine Ben Hammou	0.01 s	JavaScript (SpiderMonkey)	2017-03-11 21:29:46
6	Alan Delaney	0.01 s	JavaScript (SpiderMonkey)	2017-04-10 20:54:50
7	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-31 18:35:03
8	Brennan Malone	0.02 s	JavaScript (SpiderMonkey)	2024-02-02 18:31:42
9	Casey Smith	0.03 s	JavaScript (SpiderMonkey)	2019-05-24 22:19:30
10	Zach Tschetter	0.03 s	JavaScript (SpiderMonkey)	2023-04-18 02:50:26

#	User	Runtime	Language	Date
1	Timothy Gaede	0.58 s	Julia	2024-04-06 06:14:23
2	Danny Robinson	0.71 s	Julia	2023-06-24 02:26:48

#	User	Runtime	Language	Date
1	Jacob Huebner	0.15 s	Kotlin	2020-02-26 02:38:26
2	Ravisai Tiruvuri	0.20 s	Kotlin	2024-03-14 04:52:27
3	Adam Rankin	0.21 s	Kotlin	2023-05-10 02:07:45
4	Karl Johan Heimark	0.21 s	Kotlin	2024-01-25 20:33:26
5	Dayan Ruben Gonzalez	0.23 s	Kotlin	2020-10-02 04:26:08
6	Johnny Baloney	0.23 s	Kotlin	2021-09-26 20:07:27
7	Zaw Myat	0.23 s	Kotlin	2024-01-31 20:07:08
8	Jahid Hasan Imon	0.25 s	Kotlin	2020-06-03 22:03:46
9	Adam Koprowski	0.26 s	Kotlin	2020-09-18 08:59:48
10	Neil Harmon	0.27 s	Kotlin	2019-05-23 13:23:25

#	User	Runtime	Language	Date
1	Shehab Ahmed Hatem	0.00 s	Lua	2023-11-14 23:33:05

#	User	Runtime	Language	Date
1	Ayoub Meskour	0.00 s	Objective-C	2016-06-16 06:01:26

#	User	Runtime	Language	Date
1	Evan Magill	0.00 s	OCaml	2023-10-06 04:53:44

#	User	Runtime	Language	Date
1	Nguyen Hoang Trung	0.00 s	Pascal	2017-06-17 10:25:27
2	Ingemar Ragnemalm	0.00 s	Pascal	2017-08-30 13:07:52

#	User	Runtime	Language	Date
1	Peter Kvick	0.01 s	PHP	2020-01-30 00:25:10
2	Connor Billings	0.01 s	PHP	2020-11-12 01:11:51

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.02 s	Prolog	2018-11-26 20:47:29
2	Hakan Kjellerstrand	0.03 s	Prolog	2023-03-01 08:28:01

#	User	Runtime	Language	Date
1	Jonathan Wan	0.04 s	Python 2	2015-11-16 00:11:39
2	Christofer Ohlsson	0.04 s	Python 2	2015-11-16 08:29:54
3	Mikael Hedin	0.04 s	Python 2	2015-11-23 14:42:36
4	Urban Pettersson	0.04 s	Python 2	2015-11-25 17:36:39
5	Emil Baggs	0.04 s	Python 2	2016-01-12 20:26:10
6	Scott Handelman	0.04 s	Python 2	2016-04-21 15:13:17
7	Maksym Bendeberia	0.04 s	Python 2	2016-09-22 12:33:44
8	Hidden user	0.04 s	Python 2	2016-10-19 20:00:48
9	Logan Su	0.04 s	Python 2	2016-10-22 19:22:40
10	John Paul Hanson	0.04 s	Python 2	2016-10-22 20:10:41

#	User	Runtime	Language	Date
1	Jack Rosenthal	0.02 s	Python 3	2015-11-15 04:40:03
2	Wen Li Looi	0.02 s	Python 3	2015-11-16 23:36:54
3	Hidden user	0.02 s	Python 3	2015-11-22 20:06:00
4	Mikael Hedin	0.02 s	Python 3	2015-11-23 14:39:41
5	Wayne	0.02 s	Python 3	2016-01-20 22:59:46
6	Bernhard Kartefla	0.02 s	Python 3	2016-03-16 23:56:52
7	Blaž Poljanec	0.02 s	Python 3	2016-03-19 21:50:34
8	Prantar Bhowmik	0.02 s	Python 3	2016-03-31 20:03:52
9	Johan Sannemo	0.02 s	Python 3	2016-04-04 13:52:41
10	Magnus Thomé	0.02 s	Python 3	2016-04-08 16:57:33

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2016-03-10 19:01:05
2	Lasse Berglund	0.03 s	Ruby	2016-03-28 08:35:02
3	Kevin Suwala	0.03 s	Ruby	2017-01-15 00:25:18
4	Clifford Owino	0.03 s	Ruby	2017-06-17 01:58:02
5	Zohar Malamant	0.03 s	Ruby	2017-09-13 17:13:54
6	Daniel Harder	0.05 s	Ruby	2018-09-01 02:46:17
7	Hidden user	0.05 s	Ruby	2019-03-20 11:59:41
8	Thomas Feld	0.06 s	Ruby	2023-05-23 09:35:25
9	Clement Oh	0.06 s	Ruby	2023-10-19 14:03:38
10	Russell Ng	0.07 s	Ruby	2025-05-28 09:43:00

#	User	Runtime	Language	Date
1	Douglas Porter	0.05 s	TypeScript	2024-08-04 16:08:49

#	User	Length	Language	Date
1	Michael Wichlinski	1905	Ada	2025-02-17 03:45:05

#	User	Length	Language	Date
1	Boris Vanhoof	325	C	2025-04-15 21:46:19
2	Atul Anand	508	C	2017-06-25 08:46:31
3	Khawla Hbiech	524	C	2017-06-25 03:22:41
4	Hidden user	530	C	2018-09-29 19:16:13
5	Claudius Sundlöf	532	C	2017-03-20 14:20:00
6	Tommy	532	C	2018-05-07 22:57:55
7	Malla Meher Vishal	532	C	2018-08-31 07:29:30
8	Saaish Bhonagiri	532	C	2019-05-30 23:12:07
9	David Ludwig	549	C	2017-12-01 06:18:08

#	User	Length	Language	Date
1	Gregory Sinclair	420	C#	2023-10-07 23:08:38
2	Benjamin Iserman	706	C#	2021-09-30 23:18:54
3	Marek Bina	764	C#	2019-02-20 10:00:27
4	James Khalil	857	C#	2024-01-21 09:56:50
5	Thomas Norris	949	C#	2019-11-04 18:39:18
6	Göran Andersson	1019	C#	2022-05-24 14:14:28
7	Frian Tampake	1042	C#	2023-06-13 05:17:38
8	Gustav Junedahl	1134	C#	2022-04-26 17:20:57
9	Oliver Pedersen	1141	C#	2024-12-03 17:25:05
10	Hamdanil Rasyid	1162	C#	2024-12-08 07:00:55

#	User	Length	Language	Date
1	Tyler Fernando	269	C++	2022-11-08 00:50:01
2	Hidden user	404	C++	2020-02-03 18:16:42
3	William Gan	435	C++	2017-01-11 16:48:05
4	Hidden user	440	C++	2022-12-25 14:41:37
5	Johan Wind	443	C++	2015-11-26 11:38:33
6	Jerome Leow	446	C++	2020-12-20 03:33:30
7	Modan Han	461	C++	2015-12-03 03:02:44
8	林利逹	466	C++	2023-07-19 09:00:38
9	鄭宇哲	469	C++	2023-12-03 07:01:33
10	Yilun Wu	471	C++	2016-10-22 19:14:14

#	User	Length	Language	Date
1	Leslie Yip	2130	COBOL	2022-10-01 18:28:37

#	User	Length	Language	Date
1	David Cawthon	616	Common Lisp	2019-05-15 03:37:39

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1527	F#	2022-12-13 19:10:32

#	User	Length	Language	Date
1	Hidden user	495	Go	2024-10-01 07:11:05
2	Ian Howell	763	Go	2019-07-29 22:56:40
3	Oskar Johanson	938	Go	2019-10-12 10:19:40
4	Krzysztof Gibuła	1011	Go	2019-03-17 14:49:40
5	Diamond	1142	Go	2022-11-05 04:41:26
6	Markus Takalo	1159	Go	2019-05-05 15:27:51
7	Hidden user	1333	Go	2019-10-31 17:10:20
8	Norbert Voelker	1348	Go	2021-07-12 23:12:11
9	Jonathan Ström	1976	Go	2019-02-18 23:33:59

#	User	Length	Language	Date
1	Daniel Cabral	594	Haskell	2021-08-25 16:28:35
2	Li Jun	597	Haskell	2023-06-21 17:22:02
3	Thomas Hügel	802	Haskell	2023-06-05 17:14:46
4	Nicholas Marsh	805	Haskell	2022-09-26 21:35:36
5	Øyvind Almli	816	Haskell	2021-10-13 13:24:24
6	Kien Dang	844	Haskell	2025-06-16 13:16:32
7	Aurélien Pepin	853	Haskell	2019-09-10 19:07:28
8	Hidden user	904	Haskell	2023-01-14 19:04:54
9	Patrik Lilja	953	Haskell	2016-02-22 23:52:50
10	Jan Hrček	960	Haskell	2021-03-31 18:19:03

#	User	Length	Language	Date
1	Gustavo Aguiar	624	Java	2017-04-10 20:16:07
2	Ayoube Eddakhly	626	Java	2017-02-23 01:03:34
3	Doug Goodman	627	Java	2017-08-07 18:10:37
4	Samuel Klingström	633	Java	2017-03-25 01:55:17
5	Micah Stairs	645	Java	2015-11-26 18:50:51
6	Prakash Sanyasi	672	Java	2019-05-19 12:47:23
7	Saaish Bhonagiri	673	Java	2019-06-01 13:52:02
8	Tiffani Slutsky	686	Java	2025-03-07 03:34:55
9	Jeffery Huang	691	Java	2016-04-16 19:44:21
10	Emilie Hyslop	731	Java	2020-10-04 00:38:37

#	User	Length	Language	Date
1	Maycon Douglas Santos	1060	JavaScript (Node.js)	2023-11-03 02:41:57
2	Tanner Winkelman	1102	JavaScript (Node.js)	2018-07-19 02:29:51
3	Sander Hellesø	1203	JavaScript (Node.js)	2019-04-16 07:51:09
4	Jayakumar S	1285	JavaScript (Node.js)	2021-01-09 08:35:30
5	Jonas Bergling	1394	JavaScript (Node.js)	2022-05-06 16:51:37
6	Khin Nyunt	1427	JavaScript (Node.js)	2021-12-11 09:52:10
7	Mikael Fiala-Lundström	1715	JavaScript (Node.js)	2021-06-21 22:37:01
8	Bashar Altaleb	1776	JavaScript (Node.js)	2022-04-16 12:37:52
9	Kasper Witt	1828	JavaScript (Node.js)	2022-10-16 18:36:39

#	User	Length	Language	Date
1	Jimmy Gustafsson	216	JavaScript (SpiderMonkey)	2024-07-27 21:29:07
2	Christian Pilegaard Cederquist	496	JavaScript (SpiderMonkey)	2023-01-31 18:35:03
3	Zach Tschetter	507	JavaScript (SpiderMonkey)	2023-04-18 02:50:26
4	Peter Kedemo	553	JavaScript (SpiderMonkey)	2015-12-28 19:26:39
5	Amine Ben Hammou	553	JavaScript (SpiderMonkey)	2017-03-11 21:29:46
6	Bjørn Chr. Soltvedt	566	JavaScript (SpiderMonkey)	2016-01-23 20:31:57
7	Casey Smith	616	JavaScript (SpiderMonkey)	2019-05-24 22:19:30
8	Gabriel Lau	691	JavaScript (SpiderMonkey)	2016-03-24 21:23:40
9	Alan Delaney	772	JavaScript (SpiderMonkey)	2017-04-10 20:54:50
10	J M	863	JavaScript (SpiderMonkey)	2016-10-08 01:16:17

#	User	Length	Language	Date
1	Danny Robinson	177	Julia	2023-06-24 02:26:48
2	Timothy Gaede	1453	Julia	2024-04-06 06:14:23

#	User	Length	Language	Date
1	Phường Lên	389	Kotlin	2019-12-28 06:35:49
2	Adam Koprowski	578	Kotlin	2020-09-18 08:59:48
3	Karl Johan Heimark	596	Kotlin	2024-01-25 20:33:26
4	Dayan Ruben Gonzalez	766	Kotlin	2020-10-02 04:26:08
5	Adam Rankin	798	Kotlin	2023-05-10 02:07:45
6	Jahid Hasan Imon	800	Kotlin	2020-06-03 22:03:46
7	Troy Warmboe	822	Kotlin	2020-03-06 02:09:22
8	Johnny Baloney	826	Kotlin	2021-09-26 20:07:27
9	Zaw Myat	827	Kotlin	2024-01-31 20:07:08
10	Jacob Huebner	1111	Kotlin	2020-02-26 02:38:26

#	User	Length	Language	Date
1	Shehab Ahmed Hatem	649	Lua	2023-11-14 23:33:05

#	User	Length	Language	Date
1	Ayoub Meskour	1071	Objective-C	2016-06-16 06:01:26

#	User	Length	Language	Date
1	Evan Magill	1130	OCaml	2023-10-06 04:53:44

#	User	Length	Language	Date
1	Nguyen Hoang Trung	577	Pascal	2017-06-17 10:25:27
2	Ingemar Ragnemalm	711	Pascal	2017-08-30 13:07:52

#	User	Length	Language	Date
1	Peter Kvick	652	PHP	2020-01-30 00:25:10
2	Connor Billings	653	PHP	2020-11-12 01:11:51

#	User	Length	Language	Date
1	Hakan Kjellerstrand	434	Prolog	2023-03-01 08:28:01
2	Andriy Zyevakov	847	Prolog	2018-11-26 20:47:29

#	User	Length	Language	Date
1	Thomas Feld	278	Python 2	2019-08-21 14:55:51
2	Neal Zane	312	Python 2	2015-12-07 01:26:01
3	Bharath Bs	338	Python 2	2017-02-15 04:51:50
4	Nick Wu	339	Python 2	2015-11-19 10:56:21
5	Cole Bite	347	Python 2	2017-05-09 20:28:49
6	Godmar Back	375	Python 2	2016-10-23 03:05:19
7	Matt Bonsall	386	Python 2	2016-11-03 16:52:15
8	Jonathan Chng	390	Python 2	2021-06-06 06:50:31
9	Justin Su	395	Python 2	2017-09-29 00:52:38
10	Måns Magnusson	403	Python 2	2018-07-05 12:31:18

#	User	Length	Language	Date
1	David Aldenbro	182	Python 3	2025-10-14 14:25:13
2	Theo Coyne Morgan	189	Python 3	2023-04-04 00:14:20
3	Harry Zhang	193	Python 3	2023-10-24 01:27:41
4	Lukas Kerren	202	Python 3	2024-05-10 13:01:50
5	Eduardo Vicente Petry	204	Python 3	2023-03-11 19:44:42
6	Ahmed Chamseddine	212	Python 3	2023-10-13 17:38:37
7	Christian Lindeström	222	Python 3	2022-11-22 17:46:37
8	Tai Tze Kin	234	Python 3	2024-05-06 19:03:44
9	Yong Mao	246	Python 3	2023-05-26 17:02:07
10	Thibault Raffaillac	271	Python 3	2020-01-24 15:48:02

#	User	Length	Language	Date
1	Thomas Feld	139	Ruby	2023-05-23 09:45:49
2	Russell Ng	144	Ruby	2025-05-28 09:43:00
3	Clement Oh	279	Ruby	2023-10-19 14:17:47
4	Daniel Harder	320	Ruby	2018-09-01 02:46:17
5	Casper Christensen	358	Ruby	2016-03-10 19:01:05
6	Zohar Malamant	407	Ruby	2017-09-13 17:13:54
7	Hidden user	430	Ruby	2019-03-20 11:59:41
8	Clifford Owino	444	Ruby	2017-06-17 01:58:02
9	Kevin Suwala	489	Ruby	2017-01-15 00:25:18
10	Lasse Berglund	607	Ruby	2016-03-28 08:35:02

#	User	Length	Language	Date
1	Freek van Keulen	842	Rust	2023-10-12 20:53:11
2	Emil Skydsgaard	867	Rust	2022-07-15 16:12:12
3	David Rasch	905	Rust	2020-11-12 12:12:57
4	Hidden user	1037	Rust	2021-02-26 13:54:24
5	jaswanth	1078	Rust	2024-02-14 14:15:48
6	Jonathan	1188	Rust	2020-12-13 13:53:25
7	Columbus	1229	Rust	2022-07-04 12:03:04
8	Jonathan Choi	1240	Rust	2024-01-13 00:33:31
9	Bas Dirks	1280	Rust	2022-01-09 21:03:26
10	Thomas Abel	1316	Rust	2022-09-23 20:50:44

#	User	Length	Language	Date
1	Douglas Porter	2121	TypeScript	2024-08-04 16:08:49

Solution running time distribution