Problem A
Natrij — Problem Statistics

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Submissions	9390
Accepted submissions	2867
Submission ratio	30.53%
Authors	2833
Full solves [?]	2475
Full solve Ratio	87.36%

#	User	Runtime	Language	Date
1	Yuwono Bangun Nagoro	0.02 s	C#	2016-01-16 14:59:54
2	lobo	0.02 s	C#	2016-05-22 07:44:04
3	Hidden user	0.02 s	C#	2016-08-21 01:09:10
4	Ziga Staresinic	0.02 s	C#	2016-12-02 14:56:30
5	Khin Nyunt	0.02 s	C#	2017-01-18 13:45:50
6	Moo	0.02 s	C#	2017-07-06 22:51:24
7	Stewart Nagle	0.02 s	C#	2017-11-03 20:17:15
8	Daniel Johansson	0.02 s	C#	2018-01-23 15:59:24
9	Seth Kitchen	0.02 s	C#	2018-02-23 22:23:29
10	Faisal Rahman	0.02 s	C#	2018-05-22 09:14:24

#	User	Runtime	Language	Date
1	dick move	0.00 s	Crystal	2025-09-29 05:20:38

#	User	Runtime	Language	Date
1	Rasmus Lystrøm	0.05 s	F#	2022-03-09 12:13:47
2	Jacob Harris Cryer Kragh	0.06 s	F#	2023-09-16 19:20:43

#	User	Runtime	Language	Date
1	Khin Nyunt	0.00 s	Go	2023-09-13 17:15:32
2	Arunangshu Biswas	0.00 s	Go	2023-09-18 10:38:42
3	Guhan M	0.00 s	Go	2023-11-16 17:31:15
4	Nathan Lee	0.00 s	Go	2025-08-28 19:55:23
5	Krzysztof Gibuła	0.07 s	Go	2019-03-07 23:53:24
6	Norbert Voelker	0.08 s	Go	2021-07-04 23:08:00

#	User	Runtime	Language	Date
1	Andreas Lindgren	0.04 s	Java	2024-09-15 22:31:04
2	Guangyi Zhou	0.04 s	Java	2025-03-03 11:28:01
3	Erik Odenman	0.05 s	Java	2015-04-15 17:36:00
4	Michael Sullivan	0.05 s	Java	2016-02-15 01:38:32
5	Atanas Atanasov	0.05 s	Java	2016-04-24 10:20:31
6	Nick Wu	0.05 s	Java	2016-08-09 09:18:24
7	Erik Baalhuis	0.05 s	Java	2016-08-10 16:32:08
8	Othmane Bentaleb	0.05 s	Java	2016-09-07 20:04:33
9	Charlie Börjeson	0.05 s	Java	2016-09-21 14:40:16
10	Steven Lares	0.05 s	Java	2016-09-22 03:32:56

#	User	Runtime	Language	Date
1	Sander Hellesø	0.05 s	JavaScript (Node.js)	2019-05-04 09:35:07
2	Đậu Huy Minh	0.08 s	JavaScript (Node.js)	2022-10-13 06:16:17
3	Stephanie Keck	0.42 s	JavaScript (Node.js)	2020-01-20 06:35:37
4	Kevin Ma	0.42 s	JavaScript (Node.js)	2020-07-04 17:38:01
5	Mikael Fiala-Lundström	0.42 s	JavaScript (Node.js)	2021-06-20 01:14:14
6	Emil Clemedson	0.42 s	JavaScript (Node.js)	2021-08-25 14:42:29
7	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-11-26 17:31:07

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-01-24 13:47:23
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-03-04 05:29:11
3	Tor Nordqvist	0.01 s	JavaScript (SpiderMonkey)	2016-10-26 21:45:01
4	Paul Leung	0.01 s	JavaScript (SpiderMonkey)	2017-03-27 19:32:51
5	Nah Yi Feng	0.01 s	JavaScript (SpiderMonkey)	2017-11-10 07:18:38
6	Tuomo Olavi	0.01 s	JavaScript (SpiderMonkey)	2018-04-09 15:34:13
7	Nguyễn Mạnh Phúc	0.02 s	JavaScript (SpiderMonkey)	2018-09-01 13:31:26
8	Johannes Strelen	0.02 s	JavaScript (SpiderMonkey)	2018-12-06 17:33:14
9	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-02-15 15:47:18

#	User	Runtime	Language	Date
1	Timothy Gaede	0.51 s	Julia	2024-05-22 16:02:36

#	User	Runtime	Language	Date
1	Ashish Singh	0.13 s	Kotlin	2023-01-30 15:56:02
2	Johnny Baloney	0.15 s	Kotlin	2021-12-06 21:56:59
3	Troels Bjerre Lund	0.16 s	Kotlin	2019-11-07 21:40:34
4	Adam Rankin	0.18 s	Kotlin	2023-08-25 23:34:27
5	Merih Bora Poçan	0.19 s	Kotlin	2020-08-15 16:44:09
6	Mark Mathis	0.20 s	Kotlin	2018-10-16 04:57:33
7	Dayan Ruben Gonzalez	0.20 s	Kotlin	2020-10-04 03:31:24
8	Jonathan Soo	0.21 s	Kotlin	2019-08-20 13:31:58
9	Ravisai Tiruvuri	0.21 s	Kotlin	2024-03-27 18:11:52
10	Ola Sundell	0.28 s	Kotlin	2018-06-21 10:59:28

#	User	Runtime	Language	Date
1	Joseph Chau	0.00 s	Lua	2024-01-26 05:46:34
2	Caleb Austin	0.00 s	Lua	2024-08-31 10:20:31
3	Peter Hairatidis	0.00 s	Lua	2025-12-02 23:13:22

#	User	Runtime	Language	Date
1	余恩樂4B28 Yu Yan Lok	0.00 s	Pascal	2020-02-27 11:44:34
2	陳昱諺4B01 Chan Cory Yuk Yin	0.00 s	Pascal	2020-03-01 14:02:38

#	User	Runtime	Language	Date
1	Saito Ta	0.00 s	Perl	2024-04-18 11:04:40

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2017-06-25 13:23:28
2	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-15 18:16:00

#	User	Runtime	Language	Date
1	Andreas Linn	0.02 s	Python 2	2015-04-15 20:40:58
2	Christofer Ohlsson	0.02 s	Python 2	2015-06-28 13:07:14
3	Asger Hautop Drewsen	0.02 s	Python 2	2015-11-21 03:20:15
4	Arjit Srivastava	0.02 s	Python 2	2016-04-22 01:17:01
5	Yan Kalchevsky	0.02 s	Python 2	2017-01-15 21:53:38
6	Andrew Bortnikov	0.02 s	Python 2	2017-01-15 23:12:44
7	Ekaterina	0.02 s	Python 2	2017-01-20 21:49:44
8	Jessica Fang	0.02 s	Python 2	2017-01-30 17:13:54
9	Nathan Villanueva	0.02 s	Python 2	2017-02-03 04:27:02
10	Jonathan Ibanez	0.02 s	Python 2	2017-02-10 01:57:19

#	User	Runtime	Language	Date
1	Emil Wärnberg	0.02 s	Python 3	2015-04-15 17:34:45
2	Rusmir Deli	0.02 s	Python 3	2015-09-09 15:30:53
3	Oskar Haarklou Veileborg	0.02 s	Python 3	2015-11-21 02:39:38
4	Wayne	0.02 s	Python 3	2016-02-20 10:31:03
5	Michelle Sweering	0.02 s	Python 3	2016-03-17 19:44:14
6	Max Li	0.02 s	Python 3	2016-04-22 00:08:19
7	Sigurjón Freyr Viktorsson	0.02 s	Python 3	2016-04-22 16:55:11
8	Marika Rostvall	0.02 s	Python 3	2016-05-16 15:45:04
9	Desireddyguru Vishnuvardhanreddy	0.02 s	Python 3	2016-09-19 12:51:40
10	Jason Yuen	0.02 s	Python 3	2016-09-20 00:30:00

#	User	Runtime	Language	Date
1	Shayon Mukherjee	0.03 s	Ruby	2016-03-07 16:34:27
2	Naoki Mizuno	0.03 s	Ruby	2016-04-09 13:43:17
3	Erik Rydbert	0.03 s	Ruby	2016-07-12 16:09:54
4	Matthew Clemons	0.03 s	Ruby	2018-01-20 04:56:28
5	Hidden user	0.04 s	Ruby	2019-11-27 17:09:17
6	Thomas Feld	0.06 s	Ruby	2023-05-03 15:16:43

#	User	Runtime	Language	Date
1	Fadim Hats	0.00 s	Swift	2025-02-09 11:02:43

#	User	Length	Language	Date
1	Hrant Hovhannisyan	313	C	2017-03-20 12:19:59
2	Hidden user	343	C	2017-07-13 12:14:56
3	Amad Askor	366	C	2016-08-07 20:10:23
4	Hidden user	416	C	2017-11-17 23:49:19
5	陳重諺	444	C	2021-02-01 19:49:32
6	Roemer Caliboso	453	C	2024-09-03 22:00:01
7	Christian Lindeström	458	C	2016-08-17 16:27:10
8	Lionel KITIHOUN	459	C	2016-06-22 12:40:51
9	monoamine11231	459	C	2023-10-28 20:07:16
10	Marcel Goh	484	C	2019-11-01 20:17:02

#	User	Length	Language	Date
1	Christtoffer Grrünberg	400	C#	2025-10-07 22:33:21
2	Nathan Andrews	552	C#	2024-08-28 03:51:04
3	Hidden user	834	C#	2016-08-21 01:09:10
4	Tomasz Masternak	1042	C#	2018-09-21 14:20:22
5	Գոռ Բաղդասարյան	1067	C#	2024-09-19 14:59:11
6	Gustav Kalander	1109	C#	2018-09-14 21:40:25
7	Mazen Mohamad	1344	C#	2018-08-30 17:03:35
8	Daryal Murat Akay	1363	C#	2018-10-15 18:55:12
9	Stewart Nagle	1511	C#	2017-11-03 20:17:15
10	Khin Nyunt	1513	C#	2017-01-18 13:45:50

#	User	Length	Language	Date
1	Rafif Musyaffa Indarto	253	C++	2025-03-07 05:06:16
2	Duarte Nóbrega	320	C++	2019-02-27 17:11:54
3	Girish Rengadurai	324	C++	2020-05-31 21:07:22
4	Grae Yeandle	325	C++	2016-12-28 17:30:39
5	Rezwan Arefin	328	C++	2022-02-11 20:18:14
6	Herman Karlsson	331	C++	2019-11-20 00:40:20
7	Hidden user	334	C++	2020-04-11 11:23:39
8	William Gan	337	C++	2017-08-12 16:31:34
9	Sebastian Weiermann	345	C++	2017-03-21 18:30:42
10	Alexander Morgenstern	346	C++	2023-02-02 00:43:49

#	User	Length	Language	Date
1	dick move	342	Crystal	2025-09-29 05:20:38

#	User	Length	Language	Date
1	Rasmus Lystrøm	460	F#	2022-03-09 12:13:47
2	Jacob Harris Cryer Kragh	711	F#	2023-09-16 19:20:43

#	User	Length	Language	Date
1	Guhan M	651	Go	2023-11-16 17:31:15
2	Norbert Voelker	672	Go	2021-07-04 23:08:00
3	Krzysztof Gibuła	719	Go	2019-03-07 23:53:24
4	Nathan Lee	728	Go	2025-08-28 19:55:23
5	Khin Nyunt	1134	Go	2023-09-13 17:15:32
6	Arunangshu Biswas	1330	Go	2023-09-18 10:38:42

#	User	Length	Language	Date
1	Li Jun	348	Haskell	2023-06-30 23:55:14
2	Birk Tjelmeland	381	Haskell	2017-08-05 18:25:54
3	David Wärn	457	Haskell	2015-04-15 17:45:17
4	Max Jackson	665	Haskell	2016-05-01 07:21:07
5	Vasiliy Kevroletin	721	Haskell	2018-05-15 05:59:26
6	Steinar Simonnes	740	Haskell	2024-10-23 08:41:59
7	Fulano de Tal	757	Haskell	2022-01-25 02:26:29
8	Mattias Aronsson Adler	765	Haskell	2018-06-03 08:11:29
9	Brent Yorgey	890	Haskell	2017-10-03 00:54:49
10	Matthew Gvasalia	953	Haskell	2023-08-18 18:12:12

#	User	Length	Language	Date
1	Jordan Lamkin	590	Java	2017-02-03 16:39:07
2	Jan Štola	637	Java	2015-06-08 21:31:27
3	Sam Huynh	651	Java	2021-10-13 06:37:55
4	Christian LaCourt	676	Java	2016-09-20 23:35:39
5	Hidden user	724	Java	2017-12-03 01:07:17
6	Enzio Kam Hai Hong	728	Java	2018-10-28 17:58:35
7	Adarsh Koka	743	Java	2019-01-21 07:00:46
8	Husin Wijaya	768	Java	2017-10-19 11:48:20
9	Sonny Chan	769	Java	2021-10-09 07:21:14
10	Jiahui Peng	821	Java	2019-11-26 16:30:37

#	User	Length	Language	Date
1	Sander Hellesø	734	JavaScript (Node.js)	2019-05-04 09:35:07
2	Đậu Huy Minh	749	JavaScript (Node.js)	2022-10-13 06:16:17
3	Kevin Ma	860	JavaScript (Node.js)	2020-07-04 17:38:01
4	Emil Clemedson	965	JavaScript (Node.js)	2021-08-25 14:42:29
5	Khin Nyunt	1505	JavaScript (Node.js)	2021-11-26 17:31:07
6	Mikael Fiala-Lundström	1741	JavaScript (Node.js)	2021-06-20 01:14:14
7	Stephanie Keck	3258	JavaScript (Node.js)	2020-01-20 06:35:37

#	User	Length	Language	Date
1	Nguyễn Mạnh Phúc	361	JavaScript (SpiderMonkey)	2018-09-01 13:31:26
2	Christian Pilegaard Cederquist	364	JavaScript (SpiderMonkey)	2023-02-15 15:47:18
3	Johannes Strelen	423	JavaScript (SpiderMonkey)	2018-12-06 17:33:14
4	Tuomo Olavi	483	JavaScript (SpiderMonkey)	2018-04-09 15:35:38
5	Peter Kedemo	595	JavaScript (SpiderMonkey)	2016-01-24 13:47:23
6	Tor Nordqvist	601	JavaScript (SpiderMonkey)	2016-10-26 21:45:01
7	Bjørn Chr. Soltvedt	656	JavaScript (SpiderMonkey)	2016-03-04 05:29:11
8	Paul Leung	695	JavaScript (SpiderMonkey)	2017-03-27 19:32:51
9	Nah Yi Feng	802	JavaScript (SpiderMonkey)	2017-11-10 07:18:38

#	User	Length	Language	Date
1	Timothy Gaede	986	Julia	2024-05-22 16:02:36

#	User	Length	Language	Date
1	Troels Bjerre Lund	571	Kotlin	2019-11-07 21:40:34
2	Mark Mathis	699	Kotlin	2018-10-16 04:57:33
3	Adam Rankin	750	Kotlin	2023-08-25 23:34:27
4	Dayan Ruben Gonzalez	770	Kotlin	2020-10-04 03:31:24
5	Ashish Singh	825	Kotlin	2023-01-30 15:56:02
6	Ola Sundell	935	Kotlin	2018-06-21 10:59:28
7	Johnny Baloney	1009	Kotlin	2021-12-06 21:56:59
8	Jonathan Soo	1347	Kotlin	2019-08-20 13:31:58
9	Merih Bora Poçan	1709	Kotlin	2020-08-15 16:44:09
10	Ravisai Tiruvuri	5858	Kotlin	2024-03-27 18:11:52

#	User	Length	Language	Date
1	Joseph Chau	327	Lua	2024-01-26 05:46:34
2	Peter Hairatidis	643	Lua	2025-12-02 23:13:22
3	Caleb Austin	775	Lua	2024-08-31 10:20:31

#	User	Length	Language	Date
1	陳昱諺4B01 Chan Cory Yuk Yin	1116	Pascal	2020-03-01 14:02:38
2	余恩樂4B28 Yu Yan Lok	1601	Pascal	2020-02-27 11:44:34

#	User	Length	Language	Date
1	Saito Ta	169	Perl	2024-04-18 11:04:40

#	User	Length	Language	Date
1	Hakan Kjellerstrand	474	Prolog	2023-02-15 18:16:00
2	Andriy Zyevakov	493	Prolog	2017-06-25 13:23:28

#	User	Length	Language	Date
1	Thomas Feld	200	Python 2	2019-08-27 13:57:22
2	Ngọc Hải Đinh	218	Python 2	2017-09-01 11:11:56
3	Jesper Öqvist	256	Python 2	2018-11-04 18:03:32
4	Haggai Liu	276	Python 2	2017-04-29 05:19:17
5	Justin Su	301	Python 2	2017-09-19 08:17:19
6	Alfredo Beaumont	326	Python 2	2017-08-08 17:04:31
7	Tudor Brindus	337	Python 2	2016-09-18 22:57:34
8	Jordan James	341	Python 2	2018-01-25 04:34:56
9	Andreas Björklund	342	Python 2	2019-09-17 22:18:14
10	Asger Hautop Drewsen	343	Python 2	2015-11-21 03:20:15

#	User	Length	Language	Date
1	Benjamin Z White	153	Python 3	2023-05-15 22:07:37
2	Jun Yan	156	Python 3	2023-10-14 15:57:02
3	Guk Yi Siong	170	Python 3	2023-03-06 09:18:14
4	Farzam Abrishami	172	Python 3	2024-02-06 20:03:21
5	Tai Tze Kin	176	Python 3	2024-05-04 22:13:27
6	Guillermo Hernández	177	Python 3	2023-12-31 01:43:37
7	Joseph Chau	183	Python 3	2024-01-26 05:59:48
8	Jason Clarke	212	Python 3	2024-02-09 23:07:35
9	Thibault Raffaillac	213	Python 3	2020-02-02 19:45:34
10	Russell Ng	214	Python 3	2025-08-27 15:49:11

#	User	Length	Language	Date
1	Thomas Feld	119	Ruby	2023-05-03 15:16:57
2	Hidden user	262	Ruby	2019-11-27 17:09:17
3	Naoki Mizuno	330	Ruby	2016-04-09 13:43:17
4	Shayon Mukherjee	550	Ruby	2016-03-07 16:34:27
5	Erik Rydbert	753	Ruby	2016-07-12 16:09:54
6	Matthew Clemons	2240	Ruby	2018-01-20 04:56:28

#	User	Length	Language	Date
1	Rasmus Kaj	598	Rust	2021-04-05 18:16:10
2	David Rasch	675	Rust	2020-07-24 12:35:50
3	Vincent Lagerros	683	Rust	2024-05-17 20:31:54
4	Chaoyi Yin	764	Rust	2019-01-06 05:10:40
5	Bas Dirks	940	Rust	2022-01-18 21:59:32
6	Klas af Geijerstam	980	Rust	2020-02-17 13:02:13
7	Hidden user	1020	Rust	2024-12-24 03:25:14
8	Jakub Jagiello	1151	Rust	2020-02-24 13:58:07
9	Hidden user	1745	Rust	2023-10-10 18:31:21
10	Chen Weikang	1872	Rust	2019-01-12 04:08:05

#	User	Length	Language	Date
1	Fadim Hats	892	Swift	2025-02-09 11:02:43

Solution running time distribution