Problem I
Pencil Crayons — Problem Statistics

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Submissions	1338
Accepted submissions	809
Submission ratio	60.46%
Authors	752
Full solves [?]	708
Full solve Ratio	94.15%

#	User	Runtime	Language	Date
1	Matzuka	0.33 s	APL	2025-03-24 09:57:51

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.07 s	Bash	2025-09-13 03:05:39

#	User	Runtime	Language	Date
1	Alex Carpenter	0.00 s	C	2024-04-24 20:33:00
2	Gabriel Lavier	0.00 s	C	2024-04-26 00:47:39
3	Brandon Aleman	0.00 s	C	2024-06-27 21:06:30
4	Børge Bjørnstadjordet	0.00 s	C	2024-07-23 14:54:39
5	Hidden user	0.00 s	C	2024-12-26 10:21:10
6	Mirel Cosulschi	0.00 s	C	2025-02-22 21:18:45
7	Eduardo Vicente Petry	0.00 s	C	2025-08-20 00:19:07
8	Jeviczki Jane	0.00 s	C	2025-11-13 22:21:05
9	Martin Blom	0.01 s	C	2024-06-18 15:48:02
10	Malin Grevillius	0.02 s	C	2024-12-21 14:33:29

#	User	Runtime	Language	Date
1	Jan Matthiessen	0.04 s	C#	2024-03-30 23:41:14
2	Pontus Magnusson	0.04 s	C#	2024-04-07 23:04:27
3	traxex	0.04 s	C#	2024-04-19 14:45:49
4	Benjamin Bilbeau	0.04 s	C#	2024-04-25 18:57:24
5	Taekwan Yoon	0.04 s	C#	2024-05-03 09:32:11
6	Maykal Droshev	0.04 s	C#	2024-05-06 19:04:08
7	Esty Crow	0.04 s	C#	2024-05-10 16:33:41
8	Anthony Ye	0.04 s	C#	2024-05-10 20:30:36
9	Deci Bel	0.04 s	C#	2025-07-14 18:56:45
10	Dennis Stegnell	0.05 s	C#	2024-03-27 00:52:05

#	User	Runtime	Language	Date
1	Emil Boesgaard Nørbjerg	0.09 s	F#	2024-04-05 17:50:36

#	User	Runtime	Language	Date
1	David Zacek	0.00 s	Go	2024-03-17 19:17:03
2	Norbert Voelker	0.00 s	Go	2024-03-18 14:02:14
3	Jimmy Nejtron	0.09 s	Go	2024-04-17 15:59:27

#	User	Runtime	Language	Date
1	Brent Yorgey	0.01 s	Haskell	2024-03-18 03:51:35
2	Steinar Simonnes	0.01 s	Haskell	2024-03-23 14:14:51
3	Sebastian Banert	0.01 s	Haskell	2024-06-09 00:50:36
4	Daniel Cabral	0.01 s	Haskell	2024-07-24 10:19:09
5	Ng Tek In	0.01 s	Haskell	2024-08-17 20:37:46
6	vagabundus	0.02 s	Haskell	2024-04-27 13:02:14
7	Ramesh baskaran	0.02 s	Haskell	2024-10-16 03:53:24
8	Jan Hrček	0.02 s	Haskell	2024-12-06 18:20:11

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.07 s	Java	2024-03-21 19:19:47
2	Lee Heng Sheng	0.07 s	Java	2024-05-26 10:31:32
3	Stela Palii	0.07 s	Java	2024-12-09 23:28:10
4	Daniel Gutierrez Duarte	0.07 s	Java	2025-03-10 20:23:23
5	Issa Issack	0.07 s	Java	2025-03-13 00:18:11
6	Ben Cobb	0.08 s	Java	2024-03-17 20:54:30
7	Julius Griebel	0.08 s	Java	2024-10-27 19:07:10
8	Achim Ahlers	0.09 s	Java	2024-05-25 20:37:36
9	Markus Bao	0.09 s	Java	2025-09-15 04:49:40
10	Ronas Jacob Coban Olsen	0.10 s	Java	2024-04-05 16:35:28

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	JavaScript (Node.js)	2024-09-27 03:51:43
2	Ola Dahl	0.06 s	JavaScript (Node.js)	2024-03-20 20:49:33

#	User	Runtime	Language	Date
1	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-06-10 15:20:47
2	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2024-03-17 16:42:24
3	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2024-03-18 10:00:52
4	Zach Tschetter	0.03 s	JavaScript (SpiderMonkey)	2024-03-25 00:13:02
5	Evan Magill	0.03 s	JavaScript (SpiderMonkey)	2024-04-07 21:24:29

#	User	Runtime	Language	Date
1	Timothy Gaede	0.62 s	Julia	2024-03-23 03:59:58
2	Danny Robinson	0.70 s	Julia	2024-08-27 15:09:20
3	William Perez	0.71 s	Julia	2024-04-26 02:48:22

#	User	Runtime	Language	Date
1	Martijn Muijsers	0.23 s	Kotlin	2024-05-28 12:38:13
2	Adam Rankin	0.26 s	Kotlin	2024-05-05 04:49:25
3	Fern	0.26 s	Kotlin	2024-05-12 16:08:40
4	Emil Wihlander	0.26 s	Kotlin	2024-07-16 22:26:04
5	Troy Warmboe	0.27 s	Kotlin	2024-04-06 01:26:05

#	User	Runtime	Language	Date
1	Fredrik Eriksson	0.01 s	OCaml	2024-11-03 00:59:40

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Odin	2025-05-08 21:45:11

#	User	Runtime	Language	Date
1	Saito Ta	0.02 s	Perl	2024-04-08 09:57:51

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2024-04-07 18:23:29

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.03 s	Python 2	2024-03-19 06:44:33

#	User	Runtime	Language	Date
1	alexandre dewilde	0.04 s	Python 3	2024-09-04 11:53:27
2	Joel Boeve	0.04 s	Python 3	2024-09-07 05:50:12
3	hor jassy	0.04 s	Python 3	2024-09-10 12:28:49
4	Thillaivasan Karunakaran	0.04 s	Python 3	2024-09-13 02:45:56
5	Moriaki Shimazaki	0.04 s	Python 3	2024-09-13 15:18:56
6	Erik Svendsmark	0.04 s	Python 3	2024-09-14 07:11:34
7	Emma Long	0.04 s	Python 3	2024-09-18 01:18:20
8	Ido Koubi	0.04 s	Python 3	2024-09-19 20:53:59
9	Joacim Norlén	0.04 s	Python 3	2024-09-20 16:13:51
10	Jacob Lee	0.04 s	Python 3	2024-09-25 07:23:14

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2024-04-02 14:12:22
2	Frederik Petersen	0.06 s	Ruby	2024-04-09 14:18:38
3	Frederik Spang	0.07 s	Ruby	2024-04-10 14:49:47
4	Miorel Palii	0.08 s	Ruby	2024-11-24 00:42:17
5	Chenzhang Hu	0.12 s	Ruby	2025-09-22 17:38:40

#	User	Runtime	Language	Date
1	Cem Akarsubaşı	0.00 s	Rust	2024-04-05 16:51:02
2	Kalle Vigren	0.00 s	Rust	2024-05-17 22:26:31
3	Frank Endriss	0.00 s	Rust	2024-05-31 14:15:25
4	Pankajkumar Patro	0.00 s	Rust	2024-08-10 19:18:58
5	Isak Jägberg	0.00 s	Rust	2024-10-18 19:00:42
6	Vincent Lagerros	0.00 s	Rust	2024-12-24 18:31:13
7	Bas Dirks	0.00 s	Rust	2025-01-03 17:31:54
8	Emil Dichmann	0.00 s	Rust	2025-09-13 05:07:03

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Swift	2024-03-17 15:06:44

#	User	Runtime	Language	Date
1	nHail	0.05 s	TypeScript	2026-03-07 04:01:43

#	User	Length	Language	Date
1	Matzuka	237	APL	2025-03-24 09:57:51

#	User	Length	Language	Date
1	Chenzhang Hu	48	Bash	2025-09-13 03:05:39

#	User	Length	Language	Date
1	Martin Blom	296	C	2024-06-18 15:58:17
2	Eduardo Vicente Petry	674	C	2025-08-20 00:19:07
3	Gabriel Lavier	753	C	2024-04-26 00:47:39
4	Jeviczki Jane	846	C	2025-11-13 22:21:05
5	Hidden user	968	C	2024-12-26 10:21:10
6	Mirel Cosulschi	989	C	2025-02-22 21:18:45
7	Alex Carpenter	1014	C	2024-04-24 20:33:00
8	Malin Grevillius	1058	C	2024-12-21 14:33:29
9	Børge Bjørnstadjordet	2117	C	2024-07-23 14:54:39
10	Brandon Aleman	2968	C	2024-06-27 21:06:30

#	User	Length	Language	Date
1	Pontus Magnusson	310	C#	2024-04-07 23:04:27
2	traxex	344	C#	2024-04-19 14:45:49
3	Anthony Ye	364	C#	2024-05-10 20:36:58
4	Esty Crow	382	C#	2024-05-10 16:33:41
5	Jan Matthiessen	518	C#	2024-03-30 23:41:14
6	Benjamin Bilbeau	567	C#	2024-04-25 18:57:24
7	Umar Rasyid	603	C#	2025-01-27 01:35:13
8	Deci Bel	646	C#	2025-07-14 18:56:45
9	Davve Lid	776	C#	2025-04-14 19:20:13
10	Dennis Stegnell	778	C#	2024-03-27 00:52:05

#	User	Length	Language	Date
1	KRIS NATALIS	254	C++	2024-05-12 10:57:06
2	Elias Lolck	268	C++	2024-04-05 16:36:26
3	Alina Rudzenis	279	C++	2025-02-23 19:20:14
4	Jesús Pacheco Alonso	290	C++	2024-03-19 09:49:46
5	Sophie Zeihen	290	C++	2025-05-29 19:40:25
6	Shang-En Huang	294	C++	2024-03-16 18:28:31
7	Alexander Skidanov	296	C++	2024-10-07 19:13:04
8	Kevin Lu	300	C++	2024-03-16 18:04:21
9	Andreas Alberg	303	C++	2024-04-22 19:49:55
10	Gael Rosario	312	C++	2025-01-11 02:54:22

#	User	Length	Language	Date
1	Emil Boesgaard Nørbjerg	2032	F#	2024-04-05 17:50:36

#	User	Length	Language	Date
1	Jimmy Nejtron	328	Go	2024-04-17 15:59:27
2	Norbert Voelker	529	Go	2024-03-18 14:02:14
3	David Zacek	582	Go	2024-03-17 19:17:03

#	User	Length	Language	Date
1	Jan Hrček	103	Haskell	2024-12-06 18:20:11
2	Sebastian Banert	130	Haskell	2024-06-09 00:50:36
3	Ramesh baskaran	146	Haskell	2024-10-16 03:53:24
4	Daniel Cabral	303	Haskell	2024-07-24 10:19:09
5	Brent Yorgey	330	Haskell	2024-03-18 03:51:35
6	Steinar Simonnes	336	Haskell	2024-03-23 14:14:51
7	vagabundus	786	Haskell	2024-04-27 13:02:14
8	Ng Tek In	989	Haskell	2024-08-17 20:37:46

#	User	Length	Language	Date
1	Raymond Arrington	425	Java	2024-06-08 06:18:50
2	vodaturskii	463	Java	2024-03-26 12:58:50
3	Hidden user	487	Java	2024-09-11 16:50:08
4	Lam Phuoc Huy	494	Java	2024-08-03 21:11:48
5	Shanelle Han	508	Java	2024-04-22 03:13:21
6	RJ Mercado	522	Java	2025-03-15 17:43:46
7	Mark van Helvoort	523	Java	2024-03-27 13:34:04
8	Bealu Zenebe Kebede	548	Java	2025-05-27 05:39:52
9	bambi	558	Java	2024-09-24 08:48:04
10	Rasmus Streubel Nielsen	580	Java	2024-07-29 22:20:19

#	User	Length	Language	Date
1	Hidden user	710	JavaScript (Node.js)	2024-09-27 03:51:43
2	Ola Dahl	1096	JavaScript (Node.js)	2024-03-20 20:49:33

#	User	Length	Language	Date
1	Jimmy Gustafsson	89	JavaScript (SpiderMonkey)	2024-06-10 15:20:47
2	Bjørn Chr. Soltvedt	143	JavaScript (SpiderMonkey)	2024-03-17 16:45:08
3	Evan Magill	163	JavaScript (SpiderMonkey)	2024-04-07 21:25:51
4	Christian Pilegaard Cederquist	253	JavaScript (SpiderMonkey)	2024-03-18 10:00:52
5	Zach Tschetter	367	JavaScript (SpiderMonkey)	2024-03-25 00:13:02

#	User	Length	Language	Date
1	Danny Robinson	77	Julia	2024-08-27 15:09:20
2	William Perez	248	Julia	2024-04-26 02:48:22
3	Timothy Gaede	692	Julia	2024-03-23 03:59:58

#	User	Length	Language	Date
1	Emil Wihlander	282	Kotlin	2024-07-16 22:26:04
2	Troy Warmboe	313	Kotlin	2024-04-06 01:26:05
3	Fern	471	Kotlin	2024-05-12 16:08:40
4	Martijn Muijsers	537	Kotlin	2024-05-28 12:38:13
5	Adam Rankin	829	Kotlin	2024-05-05 04:49:25

#	User	Length	Language	Date
1	Fredrik Eriksson	427	OCaml	2024-11-03 00:59:40

#	User	Length	Language	Date
1	Hidden user	757	Odin	2025-05-08 21:45:11

#	User	Length	Language	Date
1	Saito Ta	63	Perl	2024-04-08 09:57:51

#	User	Length	Language	Date
1	Renate	312	PHP	2024-04-07 18:23:29

#	User	Length	Language	Date
1	Yanmarshus Bachtiar	196	Python 2	2024-03-19 06:44:33

#	User	Length	Language	Date
1	Carl Pittenger	71	Python 3	2024-04-09 06:37:03
2	Nicholas Russell Saerang	81	Python 3	2024-03-19 19:44:04
3	David Worley	83	Python 3	2024-03-23 20:23:23
4	Si Jie Tan	83	Python 3	2026-01-08 15:16:05
5	Erik Ulff	84	Python 3	2024-03-22 09:55:32
6	Markus Mathiasen	85	Python 3	2024-03-27 18:26:43
7	Ahmed Chamseddine	85	Python 3	2024-06-12 12:09:32
8	Hidden user	85	Python 3	2025-01-19 18:07:56
9	Ahmad Abdulaal	87	Python 3	2024-04-01 17:33:16
10	Tommi Järvenpää	88	Python 3	2024-03-21 07:48:56

#	User	Length	Language	Date
1	Frederik Petersen	40	Ruby	2024-04-09 14:18:38
2	Frederik Spang	40	Ruby	2024-04-10 15:22:55
3	Thomas Feld	43	Ruby	2024-04-02 14:15:41
4	Miorel Palii	110	Ruby	2024-11-24 00:42:17
5	Chenzhang Hu	150	Ruby	2025-09-22 17:38:40

#	User	Length	Language	Date
1	Emil Dichmann	344	Rust	2025-09-13 05:07:03
2	Vincent Lagerros	388	Rust	2024-12-24 18:31:13
3	Bas Dirks	552	Rust	2025-01-03 17:31:54
4	Isak Jägberg	795	Rust	2024-10-18 19:00:42
5	Pankajkumar Patro	832	Rust	2024-08-10 19:18:58
6	Cem Akarsubaşı	894	Rust	2024-04-05 16:51:02
7	Kalle Vigren	1348	Rust	2024-05-17 22:26:31
8	Frank Endriss	3046	Rust	2024-05-31 14:15:25

#	User	Length	Language	Date
1	Hidden user	205	Swift	2024-03-17 15:06:44

#	User	Length	Language	Date
1	nHail	1165	TypeScript	2026-03-07 04:01:43

Solution running time distribution