Problem M
Charting Progress — Problem Statistics

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Submissions	4520
Accepted submissions	1914
Submission ratio	42.35%
Authors	1575
Full solves [?]	1444
Full solve Ratio	91.68%

#	User	Runtime	Language	Date
1	Linus Yng	0.03 s	C#	2017-05-30 09:33:38
2	Ludwig Hedeby	0.04 s	C#	2019-11-05 18:50:10
3	Liam Mislej	0.04 s	C#	2020-08-10 18:43:04
4	Eric Weiss	0.04 s	C#	2022-09-14 22:21:32
5	Yuwono Bangun Nagoro	0.05 s	C#	2016-04-08 15:44:04
6	Timothy Ho	0.05 s	C#	2017-01-27 15:42:44
7	Tristan Close	0.05 s	C#	2017-04-02 05:13:44
8	Jie He	0.05 s	C#	2017-04-07 04:09:19
9	Stanislav Bivolarski	0.05 s	C#	2017-04-14 19:04:05
10	Tom Stocker	0.05 s	C#	2024-10-16 17:55:53

#	User	Runtime	Language	Date
1	Hidden user	0.06 s	Common Lisp	2019-06-17 06:01:53
2	David Cawthon	0.14 s	Common Lisp	2019-05-18 03:06:15

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-11-05 09:54:59

#	User	Runtime	Language	Date
1	Norbert Voelker	0.10 s	Go	2021-05-18 01:06:48
2	Ciarán Ó hAoláin	0.44 s	Go	2017-12-09 10:47:50

#	User	Runtime	Language	Date
1	Isaac Arvestad	0.02 s	Haskell	2017-02-22 14:18:16
2	Brent Yorgey	0.02 s	Haskell	2018-01-14 08:05:48
3	Aurélien Pepin	0.02 s	Haskell	2019-09-04 09:02:48
4	Steinar Simonnes	0.02 s	Haskell	2024-02-12 19:02:08
5	Hidden user	0.03 s	Haskell	2015-02-10 06:50:07
6	Wilfried van Asten	0.03 s	Haskell	2015-12-19 21:14:03
7	Blake Hyde	0.03 s	Haskell	2016-06-10 05:01:15
8	Hidden user	0.03 s	Haskell	2019-10-05 18:40:03
9	Brandon Tang	0.03 s	Haskell	2023-06-10 11:32:38
10	Jan Hrček	0.04 s	Haskell	2021-03-26 11:40:59

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.07 s	Java	2022-01-16 16:23:12
2	Samuel Klingström	0.09 s	Java	2017-07-28 13:54:59
3	Steven Cheng	0.09 s	Java	2018-05-23 19:20:05
4	Nick Wu	0.10 s	Java	2016-04-26 05:18:13
5	Micah Stairs	0.10 s	Java	2016-09-20 22:38:13
6	Martijn Muijsers	0.10 s	Java	2016-10-12 09:26:48
7	Veniamin Viflyantsev	0.11 s	Java	2015-12-12 01:41:44
8	Michael Sullivan	0.11 s	Java	2016-02-14 22:08:07
9	Hidden user	0.11 s	Java	2016-03-21 20:25:24
10	Chen Shenghao	0.12 s	Java	2019-01-28 17:07:35

#	User	Runtime	Language	Date
1	gigi	0.19 s	JavaScript (Node.js)	2022-12-07 23:32:46
2	Hidden user	0.52 s	JavaScript (Node.js)	2020-12-20 11:08:10
3	Khin Nyunt	0.53 s	JavaScript (Node.js)	2021-09-21 16:49:21

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-02-12 18:55:17
2	Peter Kedemo	0.03 s	JavaScript (SpiderMonkey)	2016-01-04 10:33:50
3	Michael Laszlo	0.04 s	JavaScript (SpiderMonkey)	2016-10-06 18:03:10
4	Christian Pilegaard Cederquist	0.04 s	JavaScript (SpiderMonkey)	2023-01-31 10:22:30
5	Jimmy Gustafsson	0.04 s	JavaScript (SpiderMonkey)	2024-08-26 10:38:44
6	Paul Leung	0.05 s	JavaScript (SpiderMonkey)	2017-06-09 17:50:51

#	User	Runtime	Language	Date
1	Timothy Gaede	0.53 s	Julia	2024-04-06 07:04:48

#	User	Runtime	Language	Date
1	Hidden user	0.26 s	Kotlin	2017-11-11 19:49:29
2	Neil Harmon	0.33 s	Kotlin	2019-07-16 09:26:53
3	Dayan Ruben Gonzalez	0.42 s	Kotlin	2020-09-30 20:03:51
4	Adam Rankin	0.42 s	Kotlin	2023-09-01 03:42:41

#	User	Runtime	Language	Date
1	Nguyen Hoang Trung	0.00 s	Pascal	2017-06-17 11:30:01
2	Ingemar Ragnemalm	0.01 s	Pascal	2023-07-06 17:44:14

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.22 s	Prolog	2023-03-02 20:47:20
2	Andriy Zyevakov	0.32 s	Prolog	2023-01-03 08:09:10

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.04 s	Python 2	2019-07-31 13:00:26
2	Wyatt Wismer	0.05 s	Python 2	2017-01-16 03:23:01
3	Andre Pratama	0.05 s	Python 2	2017-08-27 15:20:02
4	Eoin Davey	0.05 s	Python 2	2017-12-05 23:30:41
5	Johan Wind	0.05 s	Python 2	2018-03-29 20:29:48
6	Wang Zhi Jian	0.05 s	Python 2	2019-05-06 07:48:06
7	Tore Norderud	0.06 s	Python 2	2015-08-13 00:26:33
8	Christofer Ohlsson	0.06 s	Python 2	2015-08-23 17:23:20
9	Alvaro Silvino	0.06 s	Python 2	2016-04-08 20:16:41
10	Syafiq Al Atiiq	0.06 s	Python 2	2016-07-18 11:49:51

#	User	Runtime	Language	Date
1	Christian Lindeström	0.02 s	Python 3	2016-10-12 18:57:23
2	Ram Basnet	0.02 s	Python 3	2017-02-10 05:20:43
3	Joshua Guerin	0.02 s	Python 3	2017-04-22 22:26:33
4	Hyaline Seiche	0.02 s	Python 3	2017-05-13 18:21:30
5	Jón Steinn Elíasson	0.02 s	Python 3	2017-06-05 20:43:39
6	Ricky Rossi	0.02 s	Python 3	2017-07-05 20:54:43
7	Cian Ruane	0.02 s	Python 3	2017-08-25 16:53:53
8	Blaž Dobravec	0.02 s	Python 3	2017-08-26 18:07:44
9	Hakan Celik	0.02 s	Python 3	2017-11-29 11:28:31
10	Manu Lam	0.02 s	Python 3	2017-12-09 20:51:37

#	User	Runtime	Language	Date
1	Kok Dith	0.06 s	Ruby	2021-09-05 13:11:57
2	Hidden user	0.09 s	Ruby	2020-11-24 13:51:01
3	Bobby David	0.10 s	Ruby	2024-10-16 15:41:30
4	Thomas Feld	0.12 s	Ruby	2023-06-02 15:39:55

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-07-15 23:22:41
2	Isak Jägberg	0.01 s	Rust	2019-05-05 20:40:57
3	Bas Dirks	0.01 s	Rust	2022-01-08 19:47:37
4	Adam Yaser Sweilem	0.01 s	Rust	2025-02-25 20:06:55
5	David Rasch	0.03 s	Rust	2020-10-07 15:09:41
6	Pahlevi Fikri Auliya	0.03 s	Rust	2020-10-26 23:20:40

#	User	Length	Language	Date
1	Wu Haitao	566	C	2019-12-07 06:13:54
2	Drake Packard	574	C	2018-03-22 22:49:39
3	曾家祐	593	C	2021-11-18 02:23:31
4	曾家祐	593	C	2021-12-15 13:59:24
5	Jacob Sutton	802	C	2021-01-05 04:10:11
6	Alexander Saers	818	C	2016-10-07 22:21:38
7	Mikael K Eriksson	847	C	2021-05-22 13:52:56
8	JUNIOR	972	C	2019-01-23 14:44:12
9	Sami Al Chalati	1050	C	2024-07-18 18:38:04
10	LBWei	1155	C	2021-11-01 08:18:35

#	User	Length	Language	Date
1	Tom Stocker	164	C#	2024-10-19 00:06:48
2	Göran Andersson	496	C#	2022-05-22 19:40:04
3	Liam Mislej	882	C#	2020-08-10 18:43:04
4	Eric Weiss	948	C#	2022-09-14 22:21:32
5	Ludwig Hedeby	970	C#	2019-11-05 18:50:10
6	Linus Yng	1000	C#	2017-05-30 09:33:38
7	Tristan Close	1039	C#	2017-04-02 05:13:44
8	Drew Hudson	1451	C#	2024-10-15 21:32:42
9	Jie He	1689	C#	2017-04-07 04:09:19
10	Timothy Ho	1742	C#	2017-01-27 15:42:44

#	User	Length	Language	Date
1	Jomar Beltran	329	C++	2016-05-19 19:30:54
2	Giahuy Pham	360	C++	2019-09-29 04:59:24
3	Nicholas Rianto Putra	362	C++	2019-02-03 14:07:05
4	Christian Yongwhan Lim	387	C++	2023-06-02 23:36:03
5	Manshant Singh Kohli	404	C++	2016-05-28 07:26:13
6	Frederick Pek	415	C++	2021-07-04 13:13:59
7	Hyunjun Lee	426	C++	2022-10-27 15:24:25
8	Berlian Gabriel Mongkoginta	432	C++	2019-02-03 13:08:35
9	Trần Đăng Khương	443	C++	2019-10-02 10:04:43
10	Viktor Sieger	444	C++	2020-09-28 22:22:28

#	User	Length	Language	Date
1	Hidden user	743	Common Lisp	2019-06-17 06:01:53
2	David Cawthon	1572	Common Lisp	2019-05-18 03:06:15

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1088	F#	2022-11-05 09:54:59

#	User	Length	Language	Date
1	Ciarán Ó hAoláin	834	Go	2017-12-09 10:46:48
2	Norbert Voelker	873	Go	2021-05-18 01:06:48

#	User	Length	Language	Date
1	Brandon Tang	409	Haskell	2023-06-10 11:32:38
2	Jan Hrček	555	Haskell	2021-03-26 11:40:59
3	Aurélien Pepin	662	Haskell	2019-09-04 09:02:48
4	Steinar Simonnes	719	Haskell	2024-02-12 19:02:08
5	Brent Yorgey	787	Haskell	2018-01-14 08:05:48
6	Isaac Arvestad	924	Haskell	2017-02-22 14:18:16
7	Blake Hyde	1011	Haskell	2016-06-10 05:01:15
8	Johan Meier	1283	Haskell	2016-12-30 15:41:11
9	Hidden user	2292	Haskell	2023-01-07 15:55:35
10	Hidden user	3238	Haskell	2015-02-10 06:50:07

#	User	Length	Language	Date
1	Hidden user	662	Java	2016-01-10 12:12:13
2	Qritel Abdelilah	677	Java	2018-01-23 16:57:26
3	Kyar Nyo Aye	695	Java	2018-03-22 10:44:21
4	Jeroen van den Hoven	735	Java	2015-11-25 14:02:33
5	Stela Palii	755	Java	2018-03-12 20:11:42
6	Pedro Contipelli	789	Java	2017-01-24 02:19:32
7	Yway Chit Aung	789	Java	2017-05-25 04:33:38
8	Allan Lago	825	Java	2017-01-22 17:54:49
9	Tun Nanda Aung	827	Java	2017-05-26 11:50:47
10	Kelsey Wang	829	Java	2022-03-09 14:15:42

#	User	Length	Language	Date
1	gigi	640	JavaScript (Node.js)	2022-12-07 23:32:46
2	Khin Nyunt	860	JavaScript (Node.js)	2021-09-21 16:49:21
3	Hidden user	1400	JavaScript (Node.js)	2020-12-20 11:08:10

#	User	Length	Language	Date
1	Jimmy Gustafsson	173	JavaScript (SpiderMonkey)	2024-08-26 10:38:44
2	Bjørn Chr. Soltvedt	556	JavaScript (SpiderMonkey)	2016-02-12 18:55:17
3	Peter Kedemo	612	JavaScript (SpiderMonkey)	2016-01-04 10:33:50
4	Christian Pilegaard Cederquist	749	JavaScript (SpiderMonkey)	2023-01-31 10:22:30
5	Paul Leung	963	JavaScript (SpiderMonkey)	2017-06-09 17:50:51
6	Michael Laszlo	1141	JavaScript (SpiderMonkey)	2016-10-06 18:03:10

#	User	Length	Language	Date
1	Timothy Gaede	988	Julia	2024-04-06 07:04:48

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	548	Kotlin	2020-09-30 20:03:51
2	Hidden user	699	Kotlin	2017-11-11 19:49:29
3	Adam Rankin	801	Kotlin	2023-09-01 03:42:41
4	Neil Harmon	1049	Kotlin	2019-07-16 09:26:53

#	User	Length	Language	Date
1	Ingemar Ragnemalm	580	Pascal	2023-07-06 17:44:14
2	Nguyen Hoang Trung	642	Pascal	2017-06-17 11:30:01

#	User	Length	Language	Date
1	Hakan Kjellerstrand	449	Prolog	2023-03-02 20:47:20
2	Andriy Zyevakov	798	Prolog	2023-01-03 08:09:10

#	User	Length	Language	Date
1	Thomas Feld	243	Python 2	2019-09-16 10:47:20
2	Syafiq Al Atiiq	251	Python 2	2016-07-18 11:49:51
3	Lars Tveito	294	Python 2	2015-10-28 20:53:02
4	Daniel Voina	346	Python 2	2017-06-04 12:02:38
5	Tore Norderud	362	Python 2	2015-08-13 00:26:33
6	Hidden user	393	Python 2	2017-02-18 06:48:44
7	Shaheer Ahmed	397	Python 2	2017-12-10 23:59:53
8	Johan Wind	397	Python 2	2018-03-29 20:29:48
9	Greg Hamerly	466	Python 2	2017-12-03 13:33:59
10	Andreas Björklund	474	Python 2	2019-10-18 14:26:30

#	User	Length	Language	Date
1	Benjamin Z White	103	Python 3	2023-05-19 01:51:31
2	Tai Tze Kin	112	Python 3	2024-05-07 12:04:02
3	Guk Yi Siong	112	Python 3	2024-05-12 08:14:35
4	Ahmed Chamseddine	125	Python 3	2024-08-15 15:10:29
5	Farzam Abrishami	128	Python 3	2024-01-20 01:05:12
6	Manu Lam	184	Python 3	2017-12-09 20:51:37
7	Bryan Juniano	187	Python 3	2025-05-01 15:24:32
8	Arian Mohamed	193	Python 3	2024-06-18 21:35:33
9	Sergio Vieri	202	Python 3	2018-02-13 12:39:09
10	Casper Rysgaard	207	Python 3	2020-03-23 18:19:19

#	User	Length	Language	Date
1	Thomas Feld	85	Ruby	2023-06-02 15:44:19
2	Kok Dith	192	Ruby	2021-09-05 13:11:57
3	Hidden user	243	Ruby	2020-11-24 13:51:01
4	Bobby David	262	Ruby	2024-10-16 15:54:23

#	User	Length	Language	Date
1	Adam Yaser Sweilem	689	Rust	2025-02-25 20:06:55
2	David Rasch	745	Rust	2020-10-07 15:09:41
3	Bas Dirks	1116	Rust	2022-01-08 19:47:37
4	Isak Jägberg	1148	Rust	2019-05-05 20:40:57
5	Pahlevi Fikri Auliya	1972	Rust	2020-10-26 23:20:40
6	Vincent Lagerros	65322	Rust	2025-07-15 23:22:41

Solution running time distribution