Problem A
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Submissions	13868
Accepted submissions	6286
Submission ratio	45.33%
Authors	5210
Full solves [?]	4822
Full solve Ratio	92.55%

#	User	Runtime	Language	Date
1	Timmy Lindholm	0.00 s	C	2019-04-27 21:25:59
2	Bergur Snorrason	0.00 s	C	2019-07-20 14:34:21
3	Eyleifur Bjarkason	0.00 s	C	2019-10-10 13:47:42
4	Cristian Diaz	0.00 s	C	2020-02-16 08:56:53
5	Agis Daniels	0.00 s	C	2022-01-12 19:58:53
6	Julian Duniec	0.00 s	C	2023-09-20 20:05:22
7	Oskar Werkelin Ahlin	0.01 s	C	2011-01-29 13:45:23
8	Niklas Nordmark	0.01 s	C	2011-10-13 15:35:35
9	Carl Martin Rosenberg	0.01 s	C	2015-03-14 21:41:33
10	Viktor Slavković	0.01 s	C	2015-04-20 21:08:38

#	User	Runtime	Language	Date
1	masosz	0.04 s	C#	2015-01-23 23:19:20
2	Paweł Borkowski	0.04 s	C#	2015-06-05 21:16:21
3	Charlie Forsberg Hedberg	0.04 s	C#	2015-07-07 12:27:49
4	Mads Storm Hansen	0.04 s	C#	2015-07-17 17:05:14
5	Андрей Титов	0.04 s	C#	2016-01-29 08:58:49
6	Nguyễn Duy Khánh	0.04 s	C#	2016-07-17 14:23:58
7	Duy Khánh	0.04 s	C#	2016-07-17 14:58:17
8	Nguyễn Thị Thùy Dung	0.04 s	C#	2016-07-17 15:45:49
9	Nguyễn Thị Thùy Dung	0.04 s	C#	2016-07-17 15:47:57
10	Phan Trọng Phúc	0.04 s	C#	2016-07-18 03:32:56

#	User	Runtime	Language	Date
1	Benjamin Darnell	0.15 s	COBOL	2020-02-14 10:42:35

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Common Lisp	2020-12-14 23:28:52
2	Michal Žáček	0.06 s	Common Lisp	2022-08-08 22:33:22

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.10 s	F#	2023-08-13 11:23:07

#	User	Runtime	Language	Date
1	Adam Lumio	0.02 s	Fortran	2024-02-11 12:10:36

#	User	Runtime	Language	Date
1	Thomas	0.06 s	Go	2024-01-10 20:26:43
2	Norbert Voelker	0.08 s	Go	2021-04-29 17:11:37
3	Krzysztof Gibuła	0.09 s	Go	2019-05-26 12:40:48
4	Resa Renaldy	0.09 s	Go	2022-03-15 14:08:31
5	Anthony Alves	0.11 s	Go	2018-02-10 21:54:36
6	Hidden user	0.49 s	Go	2025-09-11 12:53:22
7	Ainun Nazieb	0.67 s	Go	2020-09-24 11:31:56
8	Hidden user	0.68 s	Go	2021-11-03 14:20:22
9	Nyamdavaa Amar	0.75 s	Go	2022-04-19 18:51:16

#	User	Runtime	Language	Date
1	Sebastian Banert	0.01 s	Haskell	2024-10-08 14:01:22
2	Dan Greco	0.01 s	Haskell	2025-09-25 16:57:30
3	Eskil Andréen	0.12 s	Haskell	2015-02-22 15:14:14
4	Lars Corbijn	0.13 s	Haskell	2015-12-19 11:45:57
5	Daniel Krueger	0.13 s	Haskell	2018-07-26 22:35:04
6	Christian Leipe	0.14 s	Haskell	2022-01-11 20:20:23
7	Hidden user	0.15 s	Haskell	2016-07-17 22:14:13
8	Hidden user	0.15 s	Haskell	2023-01-15 12:41:01
9	Hidden user	0.16 s	Haskell	2019-10-06 10:49:51
10	Steinar Simonnes	0.16 s	Haskell	2023-09-30 22:39:20

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Java	2025-06-03 10:57:27
2	Hidden user	0.05 s	Java	2025-09-11 09:40:47
3	Mehdi Ichou	0.06 s	Java	2017-05-04 18:03:43
4	Đức Phạm Hoài	0.06 s	Java	2018-07-23 06:17:21
5	Khánh Nguyễn Tiến	0.06 s	Java	2018-07-23 08:40:13
6	Simon Klein	0.07 s	Java	2011-10-31 11:11:50
7	William Fiset	0.07 s	Java	2016-08-02 13:28:01
8	Nigel Quinn	0.07 s	Java	2018-03-12 15:26:49
9	Charlie Zheng	0.07 s	Java	2018-10-18 01:17:45
10	Prakash Sanyasi	0.07 s	Java	2018-12-19 06:36:25

#	User	Runtime	Language	Date
1	Максим Войтенко	0.07 s	JavaScript (Node.js)	2024-10-17 07:19:10
2	Ludvig Dahlberg	0.08 s	JavaScript (Node.js)	2025-07-21 08:52:14
3	Luis Enrique Tinoco Hernández	0.11 s	JavaScript (Node.js)	2023-03-06 00:10:11
4	Amanda Cambronero Watson	0.11 s	JavaScript (Node.js)	2023-05-05 10:22:45
5	Samuel Högfeldt	0.12 s	JavaScript (Node.js)	2022-08-03 10:46:39
6	Nikolai Dahlberg	0.12 s	JavaScript (Node.js)	2023-08-21 19:46:19
7	Sebastian Wulff Rasmussen	0.14 s	JavaScript (Node.js)	2022-02-09 16:14:11
8	Ursula Hebert-Johnson	0.46 s	JavaScript (Node.js)	2020-02-20 19:45:29
9	Chris Wong	0.47 s	JavaScript (Node.js)	2021-03-17 03:12:58

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-01-30 18:51:25
2	Mohammad Mousavi	0.02 s	JavaScript (SpiderMonkey)	2017-01-03 11:58:57
3	Magnar Myrtveit	0.02 s	JavaScript (SpiderMonkey)	2017-02-08 18:46:14
4	Martin Morland	0.02 s	JavaScript (SpiderMonkey)	2017-02-11 15:27:33
5	Nguyễn Hùng Cường	0.03 s	JavaScript (SpiderMonkey)	2018-07-23 04:36:04
6	Peter Menyes	0.04 s	JavaScript (SpiderMonkey)	2021-10-08 15:25:17
7	Christian Pilegaard Cederquist	0.04 s	JavaScript (SpiderMonkey)	2023-01-11 13:33:34
8	Owen Ballard	0.04 s	JavaScript (SpiderMonkey)	2024-01-23 03:08:18
9	Jimmy Gustafsson	0.05 s	JavaScript (SpiderMonkey)	2024-08-12 20:54:04

#	User	Runtime	Language	Date
1	Hidden user	0.47 s	Julia	2025-03-12 19:32:26
2	Timothy Gaede	0.57 s	Julia	2024-04-04 03:33:39

#	User	Runtime	Language	Date
1	Nico Metger	0.25 s	Kotlin	2021-11-26 15:44:20
2	Troy Warmboe	0.38 s	Kotlin	2023-04-11 21:43:55
3	Adam Rankin	0.38 s	Kotlin	2023-04-29 19:47:06
4	Ryan Servera	0.41 s	Kotlin	2020-02-16 21:45:08
5	Thanh Le	0.41 s	Kotlin	2020-09-24 21:27:51
6	Adam Koprowski	0.42 s	Kotlin	2020-10-07 08:09:02
7	Lam Gia Thuan	0.48 s	Kotlin	2017-10-31 22:21:53
8	Ola Sundell	0.50 s	Kotlin	2018-05-29 08:13:39
9	Dayan Ruben Gonzalez	0.52 s	Kotlin	2020-09-28 19:21:59
10	Benjamin Ye	0.53 s	Kotlin	2022-11-04 21:34:15

#	User	Runtime	Language	Date
1	Ludovic Mignot	0.03 s	OCaml	2020-07-21 08:02:30

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.01 s	Pascal	2018-09-08 14:39:36
2	Oleg Smelov	0.01 s	Pascal	2019-02-24 10:47:23

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.09 s	Prolog	2023-02-27 05:59:16
2	Andriy Zyevakov	0.62 s	Prolog	2018-11-26 19:34:11

#	User	Runtime	Language	Date
1	Paulo Bu	0.04 s	Python 2	2015-01-25 20:57:23
2	Hidden user	0.04 s	Python 2	2015-02-22 09:51:35
3	Martin Stensgård	0.04 s	Python 2	2015-03-05 19:39:59
4	Kristmundur Agust	0.04 s	Python 2	2015-03-13 14:56:30
5	Christofer Ohlsson	0.04 s	Python 2	2015-03-27 07:57:05
6	Erik Odenman	0.04 s	Python 2	2015-05-10 16:19:28
7	Hepic Hepic	0.04 s	Python 2	2015-06-23 15:36:59
8	Fredrik Carlsen	0.04 s	Python 2	2015-06-28 19:51:49
9	Bojan Roško	0.04 s	Python 2	2015-06-28 20:28:40
10	Victor Sui	0.04 s	Python 2	2015-09-22 20:46:14

#	User	Runtime	Language	Date
1	Matevz Javornik	0.05 s	Python 3	2018-03-08 10:26:55
2	Sebastian Fredriksson Bernholtz	0.05 s	Python 3	2019-02-14 04:58:19
3	Romain Pattyn	0.05 s	Python 3	2019-10-04 15:56:06
4	Christian Pickett	0.05 s	Python 3	2019-10-10 03:14:06
5	Parsa Yadollahi	0.05 s	Python 3	2019-10-10 21:32:34
6	Luca Lewin	0.05 s	Python 3	2019-10-16 10:48:33
7	Nicholas Ang	0.05 s	Python 3	2022-10-08 14:24:29
8	ben pratt	0.05 s	Python 3	2024-08-28 19:27:45
9	Deep Patel	0.05 s	Python 3	2024-09-03 14:42:12
10	Daniel Melendez	0.05 s	Python 3	2024-09-03 17:19:00

#	User	Runtime	Language	Date
1	Felipe Marchi	0.09 s	Ruby	2022-01-14 17:36:14
2	Mattéo Delabre	0.09 s	Ruby	2022-11-16 04:43:00
3	Micah Stairs	0.10 s	Ruby	2016-08-02 03:51:05
4	Kok Dith	0.10 s	Ruby	2021-08-25 07:15:56
5	Thomas Feld	0.10 s	Ruby	2022-11-25 11:10:21
6	Clement Oh	0.10 s	Ruby	2024-02-28 12:08:53

#	User	Length	Language	Date
1	Niklas Nordmark	282	C	2011-10-13 15:35:35
2	Julian Duniec	298	C	2023-09-20 20:02:22
3	Lawrence Li	305	C	2016-02-03 05:43:02
4	Kavya S	342	C	2025-03-26 07:11:41
5	Sanjay	347	C	2025-03-26 07:31:29
6	Oskar Werkelin Ahlin	351	C	2011-01-29 13:48:06
7	Florian Marwitz	354	C	2020-05-22 14:24:23
8	PAVITHRA B	371	C	2025-03-26 07:53:25
9	Zackary Glazewski	379	C	2022-11-13 03:47:15
10	Hidden user	385	C	2025-03-26 07:28:28

#	User	Length	Language	Date
1	Hidden user	554	C#	2026-02-03 10:31:54
2	Hidden user	554	C#	2026-02-03 10:34:55
3	Lukas P.	590	C#	2026-03-06 12:03:38
4	Nabeel Mirza	650	C#	2023-09-27 05:12:49
5	Robin Rausch	705	C#	2026-02-14 15:39:03
6	Allan Nouri	760	C#	2024-10-02 15:24:56
7	Mads Storm Hansen	762	C#	2015-07-17 17:05:14
8	Paweł Borkowski	790	C#	2015-06-05 21:16:21
9	florist swe	797	C#	2024-10-10 20:21:10
10	Adam Boissonneault	807	C#	2025-04-25 17:52:29

#	User	Length	Language	Date
1	Ludo Pulles	150	C++	2018-11-11 22:07:20
2	Zackary Glazewski	159	C++	2022-11-13 04:56:53
3	Ben Gottlieb	167	C++	2024-06-29 19:24:15
4	Noé Zech	169	C++	2023-05-01 07:00:56
5	Antonio Molina Lovett	192	C++	2016-08-07 08:30:01
6	Hidden user	209	C++	2020-02-03 17:08:18
7	Herman Karlsson	224	C++	2015-11-20 15:37:55
8	Nathaniel Ang	226	C++	2020-02-12 10:02:12
9	Kai Yuan Thng	229	C++	2017-02-02 05:51:10
10	Dhipta Raditya	235	C++	2016-02-04 05:14:47

#	User	Length	Language	Date
1	Benjamin Darnell	1610	COBOL	2020-02-14 10:42:35

#	User	Length	Language	Date
1	Michal Žáček	486	Common Lisp	2022-08-08 22:33:22
2	Hidden user	922	Common Lisp	2020-12-14 23:28:52

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	618	F#	2023-08-13 11:23:07

#	User	Length	Language	Date
1	Adam Lumio	391	Fortran	2024-02-11 12:24:23

#	User	Length	Language	Date
1	Nyamdavaa Amar	465	Go	2022-04-19 18:51:16
2	Hidden user	497	Go	2021-11-03 14:20:22
3	Hidden user	508	Go	2025-09-11 12:53:22
4	Krzysztof Gibuła	520	Go	2019-05-26 12:40:48
5	Ainun Nazieb	551	Go	2020-09-24 11:31:56
6	Resa Renaldy	880	Go	2022-03-15 14:08:31
7	Norbert Voelker	1041	Go	2021-04-29 17:11:37
8	Thomas	1125	Go	2024-01-10 20:26:43
9	Anthony Alves	1274	Go	2018-02-10 21:54:36

#	User	Length	Language	Date
1	David Wärn	144	Haskell	2015-04-01 09:37:32
2	Sebastian Banert	218	Haskell	2024-10-08 13:59:38
3	Hidden user	278	Haskell	2023-01-15 12:43:13
4	Sebastian Paaske Tørholm	284	Haskell	2022-12-25 22:08:17
5	Steinar Simonnes	322	Haskell	2023-09-30 22:39:20
6	Dan Greco	387	Haskell	2025-09-25 16:40:27
7	Lars Corbijn	415	Haskell	2015-12-19 11:45:57
8	Johan Fogelström	420	Haskell	2014-09-29 14:03:38
9	Eskil Andréen	473	Haskell	2015-02-22 15:14:14
10	Hidden user	479	Haskell	2016-07-17 22:14:13

#	User	Length	Language	Date
1	Dennis Martel	326	Java	2025-09-11 11:16:19
2	Kiên Nguyễn Tiến Trung	364	Java	2017-02-03 12:35:35
3	Nam Phan Thành	393	Java	2018-07-23 04:36:55
4	Caeden Whitaker	397	Java	2020-07-21 22:59:11
5	Eric Leow Yu Quan	401	Java	2020-12-01 12:36:53
6	Ive Xu	413	Java	2015-12-24 11:34:09
7	Doug Goodman	415	Java	2016-06-23 16:08:20
8	Brendan King	424	Java	2020-08-03 21:53:35
9	Duncan Page	430	Java	2018-04-02 22:08:43
10	Fynn Rocholl	430	Java	2025-09-11 11:59:58

#	User	Length	Language	Date
1	Ludvig Dahlberg	457	JavaScript (Node.js)	2025-07-21 08:52:14
2	Максим Войтенко	559	JavaScript (Node.js)	2024-10-18 07:14:00
3	Gustaf Pihl	648	JavaScript (Node.js)	2021-12-02 19:37:02
4	Ricardo	716	JavaScript (Node.js)	2020-10-30 05:26:53
5	Samuel Högfeldt	810	JavaScript (Node.js)	2022-08-03 10:46:39
6	Nikolai Dahlberg	867	JavaScript (Node.js)	2023-08-21 19:46:19
7	Sebastian Wulff Rasmussen	881	JavaScript (Node.js)	2022-02-09 16:23:44
8	Chris Wong	884	JavaScript (Node.js)	2021-03-17 03:12:58
9	Luis Enrique Tinoco Hernández	898	JavaScript (Node.js)	2023-03-06 00:10:11

#	User	Length	Language	Date
1	Jimmy Gustafsson	175	JavaScript (SpiderMonkey)	2024-08-12 20:54:04
2	Peter Menyes	216	JavaScript (SpiderMonkey)	2021-10-08 15:25:17
3	Nguyễn Hùng Cường	298	JavaScript (SpiderMonkey)	2018-07-23 04:36:04
4	Owen Ballard	360	JavaScript (SpiderMonkey)	2024-01-23 03:30:38
5	Bjørn Chr. Soltvedt	411	JavaScript (SpiderMonkey)	2016-01-30 18:51:58
6	Martin Morland	415	JavaScript (SpiderMonkey)	2017-02-11 15:27:33
7	Magnar Myrtveit	470	JavaScript (SpiderMonkey)	2017-02-08 18:46:14
8	Mohammad Mousavi	533	JavaScript (SpiderMonkey)	2017-01-03 11:58:57
9	Christian Pilegaard Cederquist	683	JavaScript (SpiderMonkey)	2023-01-11 13:33:34

#	User	Length	Language	Date
1	Hidden user	117	Julia	2025-03-12 19:42:35
2	Timothy Gaede	410	Julia	2024-04-04 03:33:39

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	400	Kotlin	2020-09-28 19:21:59
2	Adam Koprowski	413	Kotlin	2020-10-07 08:09:02
3	Benjamin Ye	454	Kotlin	2022-11-04 21:34:15
4	Chris Johnson	462	Kotlin	2025-10-14 23:33:50
5	Adam Rankin	479	Kotlin	2023-04-29 19:47:06
6	Troy Warmboe	561	Kotlin	2023-04-11 21:43:55
7	Thanh Le	604	Kotlin	2020-09-24 21:27:51
8	Lam Gia Thuan	646	Kotlin	2017-10-31 22:21:53
9	Nico Metger	666	Kotlin	2021-11-26 15:44:20
10	Neil Harmon	988	Kotlin	2019-07-04 09:34:39

#	User	Length	Language	Date
1	Ludovic Mignot	963	OCaml	2020-07-21 08:02:30

#	User	Length	Language	Date
1	Oleg Smelov	341	Pascal	2019-02-24 10:47:23
2	Ingemar Ragnemalm	2003	Pascal	2018-09-08 14:39:36

#	User	Length	Language	Date
1	Hakan Kjellerstrand	340	Prolog	2023-02-27 06:01:50
2	Andriy Zyevakov	878	Prolog	2018-11-26 19:34:11

#	User	Length	Language	Date
1	Thomas Feld	143	Python 2	2019-08-22 13:50:41
2	Erik Odenman	152	Python 2	2015-05-10 16:19:28
3	Neal Zane	164	Python 2	2016-03-08 02:46:36
4	Hasan Ramezani	173	Python 2	2016-07-15 12:00:22
5	Jesper Öqvist	182	Python 2	2018-10-27 10:01:23
6	Lars Åström	192	Python 2	2018-11-22 09:26:12
7	Andreas Björklund	192	Python 2	2019-03-13 20:21:56
8	Bojan Roško	194	Python 2	2015-06-28 20:28:40
9	Hidden user	199	Python 2	2015-02-22 09:51:35
10	Sigurður Jens Albertsson	204	Python 2	2017-11-29 15:25:55

#	User	Length	Language	Date
1	Jaydan Aladro	87	Python 3	2022-11-16 17:36:10
2	Lawry Sorenson	89	Python 3	2026-01-12 20:59:38
3	Mattéo Delabre	94	Python 3	2022-11-16 04:27:39
4	Hidden user	103	Python 3	2025-11-27 13:23:14
5	Ben Gottlieb	107	Python 3	2024-07-09 00:19:02
6	Jonas Ryssel	108	Python 3	2023-10-27 18:00:49
7	Si Jie Tan	108	Python 3	2026-01-11 03:56:31
8	Charles Ancheta	123	Python 3	2023-04-12 06:41:20
9	Ahmed Chamseddine	127	Python 3	2024-08-06 16:38:49
10	Stefan Kennedy	129	Python 3	2019-01-03 13:09:49

#	User	Length	Language	Date
1	Thomas Feld	62	Ruby	2022-11-25 11:10:21
2	Mattéo Delabre	73	Ruby	2022-11-16 17:42:55
3	Clement Oh	150	Ruby	2024-02-28 12:08:53
4	Micah Stairs	201	Ruby	2016-08-02 03:51:05
5	Kok Dith	256	Ruby	2021-08-25 07:15:56
6	Felipe Marchi	268	Ruby	2022-01-14 17:36:14

#	User	Length	Language	Date
1	Vincent Lagerros	503	Rust	2025-01-26 14:49:37
2	Pankajkumar Patro	512	Rust	2024-10-01 13:16:44
3	Raphaël Baulant	571	Rust	2021-03-07 23:24:48
4	Emil Dichmann	581	Rust	2025-10-20 08:54:45
5	Ishtiaq Hussain Naqi	583	Rust	2023-09-27 08:17:20
6	David Rasch	745	Rust	2020-11-05 08:31:30
7	Hidden user	760	Rust	2022-12-08 15:14:55
8	Mattéo Ladrat	803	Rust	2021-03-02 10:06:53
9	Raphaël Gauthier	828	Rust	2021-03-02 10:51:15
10	Sylvain	837	Rust	2021-03-02 09:58:36

Solution running time distribution