Problem A
Speeding — Problem Statistics

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Submissions	4764
Accepted submissions	2771
Submission ratio	58.17%
Authors	2545
Full solves [?]	2407
Full solve Ratio	94.58%

#	User	Runtime	Language	Date
1	Matzuka	0.02 s	APL	2025-04-07 08:50:58

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-10-31 09:25:52
2	Chandler McFarland	0.01 s	Bash	2025-02-04 16:27:42
3	Manish shrestha	0.01 s	Bash	2025-04-15 09:00:21

#	User	Runtime	Language	Date
1	Connor Murray	0.02 s	C#	2021-03-01 19:12:58
2	Kristoffer Strube	0.02 s	C#	2021-03-06 10:08:13
3	Tran Hoang Phuc	0.02 s	C#	2021-03-30 08:36:30
4	Linda Vennerlund	0.02 s	C#	2021-04-27 11:08:26
5	Philip Han	0.02 s	C#	2021-06-01 16:24:25
6	Matthew Drain	0.02 s	C#	2021-07-03 20:54:47
7	Victor Hultén Mattsson	0.02 s	C#	2021-07-06 14:52:41
8	Maykal Droshev	0.02 s	C#	2021-07-07 12:31:15
9	Jan Matthiessen	0.02 s	C#	2021-07-21 13:04:02
10	Petra Marc	0.02 s	C#	2021-08-05 10:52:58

#	User	Runtime	Language	Date
1	Sebastian Sternberg	0.04 s	F#	2021-08-24 16:03:03
2	Jacob Harris Cryer Kragh	0.04 s	F#	2022-06-11 08:01:25
3	oskar holland	0.08 s	F#	2023-09-20 19:36:30
4	Martin Handest	0.08 s	F#	2023-09-20 21:02:06

#	User	Runtime	Language	Date
1	Drake Schram	0.00 s	Fortran	2025-02-05 17:51:38
2	Blake Pearsall	0.00 s	Fortran	2025-02-12 23:14:42

#	User	Runtime	Language	Date
1	Jimmy Nejtron	0.00 s	Go	2023-09-19 07:05:13
2	Mattias Öz	0.02 s	Go	2022-06-18 15:27:09
3	Andreas Gottschalk Krath	0.02 s	Go	2022-07-12 10:59:03
4	David Vinje	0.02 s	Go	2022-08-15 09:56:40
5	J Blackquill	0.02 s	Go	2022-11-15 04:24:58
6	Krzysztof Gibuła	0.02 s	Go	2022-12-08 19:03:04
7	T COM	0.08 s	Go	2021-03-08 16:08:13
8	Einar Kjellback	0.08 s	Go	2021-03-10 19:41:46
9	Norbert Voelker	0.08 s	Go	2021-04-13 17:22:37
10	dick move	0.08 s	Go	2021-05-16 19:24:02

#	User	Runtime	Language	Date
1	Ng Tek In	0.00 s	Haskell	2022-08-08 07:01:18
2	Hidden user	0.00 s	Haskell	2022-11-25 23:46:40
3	Mason Barnhill	0.00 s	Haskell	2023-04-18 17:13:37
4	Sebastian Banert	0.00 s	Haskell	2023-09-13 11:12:58
5	Steinar Simonnes	0.00 s	Haskell	2024-02-07 13:40:46
6	Lukas Viering	0.00 s	Haskell	2025-02-20 21:05:51
7	Brent Yorgey	0.01 s	Haskell	2021-02-19 11:26:26
8	Brian Hwang	0.01 s	Haskell	2021-03-02 13:44:15
9	Jan Hrček	0.01 s	Haskell	2021-03-07 08:41:06
10	Hidden user	0.01 s	Haskell	2021-05-29 12:40:34

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Java	2024-09-20 21:19:04
2	Goh Zhixuan Jeremiah	0.04 s	Java	2025-02-07 08:26:11
3	Daniel Gutierrez Duarte	0.04 s	Java	2025-03-27 13:53:37
4	Lee Heng Sheng	0.05 s	Java	2024-05-01 07:28:46
5	Ku Brian	0.05 s	Java	2024-05-05 09:08:31
6	Markus Bao	0.05 s	Java	2025-09-05 04:41:18
7	Crystal Sharpe	0.06 s	Java	2021-02-20 19:44:45
8	Nickolas Bonner	0.06 s	Java	2021-02-28 19:44:51
9	Hidden user	0.06 s	Java	2021-02-28 19:57:28
10	Fiona Barry	0.06 s	Java	2021-02-28 20:14:41

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	JavaScript (Node.js)	2024-09-05 17:30:44
2	Stephen Chase Sydow	0.08 s	JavaScript (Node.js)	2022-06-08 23:38:14
3	John	0.09 s	JavaScript (Node.js)	2022-07-15 05:08:30
4	Chris Wong	0.41 s	JavaScript (Node.js)	2021-03-01 19:20:24
5	Karim Dridi	0.41 s	JavaScript (Node.js)	2022-01-13 21:54:22
6	Hovhannes Kantuni	0.42 s	JavaScript (Node.js)	2021-03-03 02:47:28
7	Hidden user	0.42 s	JavaScript (Node.js)	2021-11-25 22:12:10
8	Ali	0.42 s	JavaScript (Node.js)	2021-12-16 22:29:22
9	Peter Kedemo	0.42 s	JavaScript (Node.js)	2022-01-02 10:00:18
10	Niamh Limerick	0.42 s	JavaScript (Node.js)	2022-02-03 03:03:48

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2021-02-19 11:05:54
2	Peter Menyes	0.02 s	JavaScript (SpiderMonkey)	2021-03-08 19:31:00
3	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2022-12-29 23:23:03
4	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-04-18 01:10:44
5	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-06-16 21:37:10
6	Nicklas Utgaard	0.03 s	JavaScript (SpiderMonkey)	2021-04-17 16:27:43

#	User	Runtime	Language	Date
1	Danny Robinson	0.63 s	Julia	2023-10-31 09:21:52
2	Timothy Gaede	0.64 s	Julia	2024-03-25 06:03:05

#	User	Runtime	Language	Date
1	Albert Pala	0.11 s	Kotlin	2021-07-01 06:36:23
2	Roger Bongers	0.15 s	Kotlin	2021-06-26 19:20:37
3	Marit van Dijk	0.16 s	Kotlin	2021-09-15 09:09:17
4	Ola Sundell	0.18 s	Kotlin	2022-02-20 18:18:04
5	Adam Rankin	0.18 s	Kotlin	2023-05-05 04:53:55
6	Emil Wihlander	0.18 s	Kotlin	2023-07-25 12:10:52
7	Jan Kowalski	0.19 s	Kotlin	2022-07-17 17:53:44
8	Sergey Jakobsen	0.20 s	Kotlin	2021-03-05 15:18:14
9	Emil Eriksmoen Stensland	0.20 s	Kotlin	2022-03-10 12:24:47
10	Zaw Myat	0.20 s	Kotlin	2024-04-14 03:28:36

#	User	Runtime	Language	Date
1	Adriel Javen Castro	0.00 s	Lua	2025-02-11 20:48:21
2	Matthew Farshad	0.00 s	Lua	2025-02-12 20:14:15

#	User	Runtime	Language	Date
1	Evan Magill	0.00 s	OCaml	2023-09-28 21:05:05

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Odin	2025-04-29 22:19:59

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2021-04-01 11:16:59
2	David Connolly	0.00 s	Pascal	2021-11-22 12:01:08
3	Huỳnh Minh Lâm	0.00 s	Pascal	2022-09-13 13:52:38

#	User	Runtime	Language	Date
1	cojonas1	0.01 s	PHP	2021-03-25 10:25:27
2	Petr Trofimov	0.01 s	PHP	2021-04-19 11:00:15
3	Renate Fiala-Lundström	0.01 s	PHP	2021-05-21 23:00:47
4	Muhammad Asyraf bin Akop	0.01 s	PHP	2022-06-02 08:52:47
5	Andre Wahyudi	0.01 s	PHP	2022-10-21 08:22:00

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.02 s	Prolog	2023-01-31 07:24:45

#	User	Runtime	Language	Date
1	Hasan Kalzi	0.02 s	Python 2	2022-06-20 09:17:08
2	Johan Lyts	0.03 s	Python 2	2021-02-19 12:53:08
3	Yanmarshus Bachtiar	0.03 s	Python 2	2021-03-12 03:15:42
4	Andreas Björklund	0.03 s	Python 2	2021-03-23 15:48:21
5	Samo Metličar	0.03 s	Python 2	2021-03-25 19:37:46
6	Marie Natland Berg	0.03 s	Python 2	2021-05-12 12:10:42
7	Thomas Feld	0.03 s	Python 2	2021-05-21 08:20:47
8	Andrei Stoica	0.03 s	Python 2	2021-09-08 12:25:25

#	User	Runtime	Language	Date
1	Isaac Wolters	0.04 s	Python 3	2022-06-05 13:40:56
2	Olcay	0.04 s	Python 3	2022-06-11 17:33:06
3	Hasan Kalzi	0.04 s	Python 3	2022-06-20 09:16:56
4	Adrian Elinow	0.04 s	Python 3	2022-07-07 17:31:35
5	Jc Angeles	0.04 s	Python 3	2022-08-09 08:33:39
6	Hidden user	0.04 s	Python 3	2022-08-09 13:37:44
7	Viktor Due Pedersen	0.04 s	Python 3	2022-08-15 18:37:25
8	Leon	0.04 s	Python 3	2022-08-21 09:17:03
9	Christofer Hallberg	0.04 s	Python 3	2022-08-21 20:39:18
10	Yong Mao	0.04 s	Python 3	2022-08-24 11:59:13

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Ruby	2021-03-05 22:30:01
2	Régis Hanol	0.05 s	Ruby	2022-01-07 11:29:56
3	TobiasZ	0.05 s	Ruby	2022-01-19 19:07:14
4	Patrick Elsen	0.05 s	Ruby	2022-09-11 12:59:02
5	Thomas Feld	0.06 s	Ruby	2022-11-08 11:23:24
6	Þorsteinn Kristjánsson	0.06 s	Ruby	2025-10-02 12:07:20
7	Tausif Ahmed	0.07 s	Ruby	2025-04-17 03:33:35
8	Jigme Phuntsho Wangyel	0.07 s	Ruby	2025-06-20 15:29:38
9	Eugen Neagoe	0.07 s	Ruby	2026-03-12 11:29:41

#	User	Length	Language	Date
1	Matzuka	111	APL	2025-04-07 08:52:46

#	User	Length	Language	Date
1	Danny Robinson	59	Bash	2023-10-31 09:30:01
2	Manish shrestha	360	Bash	2025-04-15 09:00:21
3	Chandler McFarland	846	Bash	2025-02-04 16:27:42

#	User	Length	Language	Date
1	a_b__c	115	C	2021-04-01 12:48:25
2	Martin Blom	116	C	2024-01-08 09:47:47
3	Nguyen Anh Khoi (K17_CT)	289	C	2022-06-23 14:33:09
4	Mai Nam Nguyen	294	C	2023-10-16 12:05:07
5	HARIPRASATH S	317	C	2025-05-07 16:55:57
6	Ago	325	C	2023-03-12 18:43:12
7	Koralla Madhu Mita	326	C	2021-11-02 09:03:09
8	Ximun Castoreo	330	C	2021-12-17 14:57:11
9	Nguyen Thanh Phuc (K17 CT)	330	C	2022-06-25 09:56:32
10	User Thirteen	332	C	2022-12-07 17:39:30

#	User	Length	Language	Date
1	Deci Bel	399	C#	2024-12-31 11:16:07
2	Anthony Ye	553	C#	2023-12-10 17:32:17
3	Pontus Norrby	565	C#	2023-04-17 14:03:50
4	Esty Crow	568	C#	2023-12-10 00:33:55
5	Benjamin Iserman	609	C#	2021-10-28 00:22:08
6	Göran Andersson	617	C#	2022-05-08 00:42:00
7	Michael Damsgaard	638	C#	2024-11-23 09:06:00
8	Ahmet Murat Gençay	674	C#	2023-09-04 13:26:01
9	Apoorva Musham	686	C#	2022-01-31 02:01:55
10	Pranjal Singh	693	C#	2022-01-31 00:50:04

#	User	Length	Language	Date
1	Frans Meulenbroeks	137	C++	2024-09-29 16:24:00
2	Tyler Fernando	138	C++	2022-10-26 03:41:52
3	黃太陽	218	C++	2022-02-23 15:47:35
4	traxex	226	C++	2021-11-02 09:56:50
5	戴予珩	230	C++	2022-07-21 10:17:32
6	Wen Hao	246	C++	2022-11-02 02:35:05
7	Nguyen Tran Huu Duc	247	C++	2021-12-20 14:30:31
8	Jordan Quah Shao Xuan	249	C++	2022-12-08 16:08:42
9	Victor Vatn	254	C++	2021-03-10 17:01:15
10	Gautham Kailash	257	C++	2023-07-08 17:00:49

#	User	Length	Language	Date
1	Martin Handest	164	F#	2023-09-21 13:35:10
2	oskar holland	177	F#	2023-09-21 13:33:59
3	Sebastian Sternberg	541	F#	2021-08-24 16:03:03
4	Jacob Harris Cryer Kragh	797	F#	2022-06-11 08:01:25

#	User	Length	Language	Date
1	Blake Pearsall	630	Fortran	2025-02-12 23:14:42
2	Drake Schram	1212	Fortran	2025-02-05 17:51:38

#	User	Length	Language	Date
1	dick move	257	Go	2021-05-16 19:24:02
2	Hidden user	321	Go	2021-12-13 22:59:36
3	David Vinje	331	Go	2022-08-15 09:56:40
4	Jimmy Nejtron	334	Go	2023-09-19 07:05:13
5	T COM	348	Go	2021-03-08 16:08:13
6	Jack Kryger Sørensen	419	Go	2021-09-01 11:26:04
7	Hidden user	419	Go	2021-09-21 17:28:38
8	Andras Nagy	435	Go	2022-01-04 04:47:33
9	Einar Kjellback	446	Go	2021-03-10 19:41:46
10	J Blackquill	472	Go	2022-11-15 04:24:58

#	User	Length	Language	Date
1	Phan Ngọc Tiên	205	Haskell	2022-03-20 18:33:24
2	Sebastian Banert	257	Haskell	2023-09-13 11:12:58
3	Monique Oliveira	321	Haskell	2021-08-31 23:33:55
4	Daniel Cabral	333	Haskell	2022-03-02 15:19:29
5	Brian Hwang	342	Haskell	2021-03-02 13:44:15
6	Tim Put	347	Haskell	2021-11-08 01:42:20
7	Jan Hrček	391	Haskell	2021-03-07 08:41:06
8	Jahid Hasan Imon	407	Haskell	2021-09-20 14:06:31
9	Lukas Viering	444	Haskell	2025-02-20 21:08:21
10	Ng Tek In	456	Haskell	2022-08-08 07:01:18

#	User	Length	Language	Date
1	John Hershey	247	Java	2023-10-05 16:26:19
2	Thanh Le	401	Java	2023-05-14 00:09:49
3	Carter Henderson	432	Java	2021-09-08 15:44:40
4	Cory Haas	443	Java	2021-11-18 02:25:54
5	Max Bagatini Alves	446	Java	2022-02-27 16:22:17
6	Aimee	453	Java	2022-04-29 07:44:23
7	Cazador Edgerton	459	Java	2026-01-06 20:46:02
8	Hidden user	470	Java	2023-03-08 19:52:30
9	Jason C	474	Java	2021-12-10 09:03:36
10	Cameron Murdoch	476	Java	2021-03-09 15:05:26

#	User	Length	Language	Date
1	Karim Dridi	401	JavaScript (Node.js)	2022-01-13 21:54:22
2	Peter Kedemo	561	JavaScript (Node.js)	2022-01-02 10:00:18
3	Hidden user	576	JavaScript (Node.js)	2023-01-31 00:18:33
4	Hovhannes Kantuni	622	JavaScript (Node.js)	2021-03-03 02:47:28
5	Ali	675	JavaScript (Node.js)	2021-12-16 22:29:22
6	Chris Wong	724	JavaScript (Node.js)	2021-03-01 19:20:24
7	Stephen Chase Sydow	786	JavaScript (Node.js)	2022-06-08 23:38:14
8	John	805	JavaScript (Node.js)	2022-07-15 05:08:30
9	Hidden user	855	JavaScript (Node.js)	2021-11-25 22:12:10
10	Niamh Limerick	983	JavaScript (Node.js)	2022-02-03 03:03:48

#	User	Length	Language	Date
1	Jimmy Gustafsson	116	JavaScript (SpiderMonkey)	2024-06-16 21:37:10
2	Bjørn Chr. Soltvedt	241	JavaScript (SpiderMonkey)	2021-02-19 11:05:54
3	Zach Tschetter	311	JavaScript (SpiderMonkey)	2023-04-18 01:10:44
4	Peter Menyes	323	JavaScript (SpiderMonkey)	2021-03-08 19:31:00
5	Christian Pilegaard Cederquist	338	JavaScript (SpiderMonkey)	2022-12-29 23:23:03
6	Nicklas Utgaard	611	JavaScript (SpiderMonkey)	2021-04-17 16:27:43

#	User	Length	Language	Date
1	Danny Robinson	119	Julia	2023-10-31 09:21:52
2	Timothy Gaede	1468	Julia	2024-03-25 06:03:05

#	User	Length	Language	Date
1	Chris Johnson	312	Kotlin	2024-02-02 20:26:17
2	Emil Eriksmoen Stensland	368	Kotlin	2022-03-10 12:24:47
3	Emil Wihlander	404	Kotlin	2023-07-25 12:10:52
4	Adam Rankin	405	Kotlin	2023-05-05 04:53:55
5	Roger Bongers	412	Kotlin	2021-06-26 19:20:37
6	Jan Kowalski	508	Kotlin	2022-07-17 17:53:44
7	Sergey Jakobsen	513	Kotlin	2021-03-05 15:22:54
8	Zaw Myat	618	Kotlin	2024-04-14 03:28:36
9	Ola Sundell	690	Kotlin	2022-02-20 18:18:04
10	Marit van Dijk	723	Kotlin	2021-09-15 09:09:17

#	User	Length	Language	Date
1	Matthew Farshad	314	Lua	2025-02-12 20:14:15
2	Adriel Javen Castro	642	Lua	2025-02-11 20:48:21

#	User	Length	Language	Date
1	Evan Magill	631	OCaml	2023-09-28 21:05:05

#	User	Length	Language	Date
1	Hidden user	462	Odin	2025-04-29 22:19:59

#	User	Length	Language	Date
1	Ingemar Ragnemalm	429	Pascal	2021-04-01 11:16:59
2	David Connolly	573	Pascal	2021-11-22 12:01:08
3	Huỳnh Minh Lâm	661	Pascal	2022-09-13 13:52:38

#	User	Length	Language	Date
1	Petr Trofimov	465	PHP	2021-04-19 11:00:15
2	Muhammad Asyraf bin Akop	482	PHP	2022-06-02 08:52:47
3	cojonas1	522	PHP	2021-03-25 10:25:27
4	Renate Fiala-Lundström	686	PHP	2021-05-21 23:00:47
5	Andre Wahyudi	721	PHP	2022-10-21 08:22:00

#	User	Length	Language	Date
1	Hakan Kjellerstrand	301	Prolog	2023-02-16 22:42:23

#	User	Length	Language	Date
1	Thomas Feld	171	Python 2	2021-05-21 08:20:47
2	Johan Lyts	201	Python 2	2021-02-19 12:53:08
3	Andreas Björklund	208	Python 2	2021-03-23 15:48:21
4	Marie Natland Berg	309	Python 2	2021-05-12 12:10:42
5	Yanmarshus Bachtiar	310	Python 2	2021-03-12 03:15:42
6	Samo Metličar	378	Python 2	2021-03-25 19:37:46
7	Andrei Stoica	419	Python 2	2021-09-08 12:25:25
8	Hasan Kalzi	544	Python 2	2021-03-11 18:45:58

#	User	Length	Language	Date
1	Clement Oh	93	Python 3	2023-07-10 16:58:03
2	Benjamin Z White	102	Python 3	2023-04-21 21:36:38
3	Morten Clausen	105	Python 3	2022-10-23 22:28:08
4	Charles Ancheta	114	Python 3	2023-03-28 06:55:05
5	Ahmed Chamseddine	122	Python 3	2023-10-13 16:10:04
6	Joel Niemelä	122	Python 3	2025-03-30 05:48:33
7	Alexandre Charland	127	Python 3	2024-08-24 02:19:27
8	Hidden user	132	Python 3	2025-08-28 11:38:43
9	David Worley	135	Python 3	2025-10-02 17:46:24
10	Si Jie Tan	138	Python 3	2026-01-06 12:45:04

#	User	Length	Language	Date
1	Thomas Feld	63	Ruby	2023-01-05 10:05:53
2	Hidden user	100	Ruby	2021-03-05 22:30:01
3	Régis Hanol	108	Ruby	2022-01-07 11:29:56
4	Patrick Elsen	109	Ruby	2022-09-11 12:59:02
5	Þorsteinn Kristjánsson	211	Ruby	2025-10-02 12:07:20
6	Eugen Neagoe	215	Ruby	2026-03-12 11:29:41
7	TobiasZ	292	Ruby	2022-01-19 19:07:14
8	Tausif Ahmed	473	Ruby	2025-04-17 03:33:35
9	Jigme Phuntsho Wangyel	492	Ruby	2025-06-20 15:29:38

#	User	Length	Language	Date
1	Vincent Lagerros	253	Rust	2024-12-10 21:21:03
2	Emil Dichmann	428	Rust	2025-09-14 10:43:07
3	Artur Khuziakhmetov	612	Rust	2022-07-24 09:49:57
4	Bas Dirks	615	Rust	2021-12-29 07:14:58
5	Kok Dith	616	Rust	2021-08-01 12:35:09
6	David Zacek	646	Rust	2021-05-21 01:26:01
7	David Rasch	672	Rust	2021-03-02 11:34:25
8	Pankajkumar Patro	724	Rust	2024-10-17 13:25:21
9	Isak Jägberg	737	Rust	2021-03-06 16:02:55
10	Mileta Mitrovic	766	Rust	2022-01-21 19:41:13

Solution running time distribution