Problem A
Test Drive — Problem Statistics

Back to problem description

Submissions	2434
Accepted submissions	1102
Submission ratio	45.28%
Authors	1055
Full solves [?]	972
Full solve Ratio	92.13%

#	User	Runtime	Language	Date
1	Mikael Fiala-Lundström	0.02 s	C#	2022-02-12 15:53:24
2	Göran Andersson	0.02 s	C#	2022-06-12 10:16:50
3	Michal Mroczek (c)	0.02 s	C#	2022-06-17 14:21:40
4	Jakub Jarzabek	0.02 s	C#	2022-06-19 17:00:19
5	Jakub Jarząbek	0.02 s	C#	2022-06-22 06:53:52
6	Hidden user	0.02 s	C#	2022-08-22 10:03:21
7	Yuwono Bangun Nagoro	0.02 s	C#	2022-09-29 11:31:32
8	Ricardo H Guerrero Lara	0.02 s	C#	2022-10-16 03:30:05
9	Ahmad Barhamje	0.02 s	C#	2022-11-26 14:05:38
10	Abdulkerim Kurgas	0.04 s	C#	2023-06-24 19:15:31

#	User	Runtime	Language	Date
1	Tobias Glimmerfors	0.00 s	COBOL	2024-02-28 20:53:12

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-10-12 10:32:01
2	J Blackquill	0.03 s	F#	2023-01-21 20:52:30

#	User	Runtime	Language	Date
1	Soren Basnet	0.00 s	Go	2025-05-16 03:47:59
2	Norbert Voelker	0.08 s	Go	2022-02-12 18:36:16

#	User	Runtime	Language	Date
1	Ng Tek In	0.00 s	Haskell	2022-08-19 15:48:10
2	Sondre Lunde	0.00 s	Haskell	2023-06-23 08:41:33
3	Steinar Simonnes	0.00 s	Haskell	2024-05-06 09:06:35
4	David Zacek	0.01 s	Haskell	2022-02-12 16:06:13
5	Brent Yorgey	0.01 s	Haskell	2022-02-21 03:43:59

#	User	Runtime	Language	Date
1	Perry Tsai	0.04 s	Java	2025-09-13 16:38:38
2	Fadhil Peer Mohamed	0.04 s	Java	2025-11-26 07:05:01
3	Julius Griebel	0.05 s	Java	2024-05-13 18:50:14
4	Ku Brian	0.05 s	Java	2024-05-16 03:15:20
5	Hussin Suleiman	0.05 s	Java	2024-06-03 14:26:02
6	Yibo Huang	0.06 s	Java	2020-11-14 19:05:04
7	Calvin Godfrey	0.06 s	Java	2020-11-14 19:25:21
8	Stela Palii	0.06 s	Java	2022-02-14 05:31:03
9	Anish Kambhampati	0.06 s	Java	2022-02-15 16:07:32
10	Crystal Sharpe	0.06 s	Java	2022-02-23 21:00:52

#	User	Runtime	Language	Date
1	Minh Trang Nguyen	0.04 s	JavaScript (Node.js)	2025-12-05 10:28:09
2	Md. Johir Uddin	0.04 s	JavaScript (Node.js)	2025-12-11 15:50:44
3	Mikael Olausson	0.08 s	JavaScript (Node.js)	2022-10-27 13:10:38

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-18 22:24:11
2	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-06-23 02:18:31
3	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-26 22:03:54
4	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2022-03-18 05:27:51

#	User	Runtime	Language	Date
1	Timothy Gaede	0.53 s	Julia	2024-04-10 22:58:06

#	User	Runtime	Language	Date
1	Aksel Holbek Sørbye	0.17 s	Kotlin	2022-10-27 13:08:43
2	Fredrik	0.17 s	Kotlin	2022-10-27 13:33:18
3	Troy Warmboe	0.18 s	Kotlin	2023-04-12 00:49:59
4	Ola Sundell	0.19 s	Kotlin	2023-07-23 14:04:17
5	Adam Rankin	0.20 s	Kotlin	2023-04-28 21:55:08
6	Martijn Muijsers	0.20 s	Kotlin	2024-05-31 20:21:57

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2023-08-11 23:12:07

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-15 12:57:16

#	User	Runtime	Language	Date
1	Justin Su	0.03 s	Python 2	2020-11-14 19:08:28
2	Johan Lyts	0.03 s	Python 2	2022-11-17 21:00:09
3	Yanmarshus Bachtiar	0.03 s	Python 2	2023-02-15 05:38:53

#	User	Runtime	Language	Date
1	Akshata S	0.04 s	Python 3	2022-06-05 11:07:02
2	Agata Zdunek	0.04 s	Python 3	2022-06-16 14:27:05
3	Duc Tri Dang	0.04 s	Python 3	2022-06-20 00:26:32
4	Pawel Blaszyk	0.04 s	Python 3	2022-06-21 20:40:24
5	Weiguo Jiang	0.04 s	Python 3	2022-06-23 01:36:37
6	Teikn Smith	0.04 s	Python 3	2022-06-28 01:35:17
7	Drew Wilson	0.04 s	Python 3	2022-07-09 04:31:27
8	Josh Taylor	0.04 s	Python 3	2022-07-12 04:05:10
9	Li Sizhuang	0.04 s	Python 3	2022-07-21 07:02:40
10	Kattis Speedrun	0.04 s	Python 3	2022-07-21 14:01:07

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-03-29 11:37:30
2	Drew Wilson	0.06 s	Ruby	2023-05-25 17:18:09

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-02-12 09:41:27
2	jskop	0.00 s	Rust	2022-06-20 17:11:52
3	Artur Khuziakhmetov	0.00 s	Rust	2022-09-01 09:01:37
4	Isak Jägberg	0.00 s	Rust	2023-03-23 12:16:44
5	Marcus Östling	0.00 s	Rust	2024-01-10 18:19:02
6	gard heine kalland	0.00 s	Rust	2024-06-16 17:07:55
7	Hidden user	0.00 s	Rust	2025-02-03 23:30:10
8	Vincent Lagerros	0.00 s	Rust	2025-02-23 17:20:31
9	Joshua Freudenhammer	0.00 s	Rust	2025-09-28 00:14:46

#	User	Length	Language	Date
1	Hidden user	320	C	2024-09-28 05:51:06
2	Stephanie Radhakrishnan	357	C	2023-09-14 14:19:43
3	Jonathen Adsit	375	C	2023-07-31 20:36:09
4	Julian Duniec	376	C	2023-08-17 07:41:55
5	Leslie Yip	387	C	2022-10-04 01:48:03
6	vitriol	405	C	2022-03-25 23:29:19
7	Meta Heric	409	C	2023-03-18 18:32:05
8	Nnodim Daniel	418	C	2025-05-16 03:06:37
9	Áquilas Jucá	453	C	2022-03-29 20:38:03
10	Hidden user	459	C	2022-07-28 08:33:51

#	User	Length	Language	Date
1	Ricardo H Guerrero Lara	662	C#	2022-10-16 03:30:05
2	Yuwono Bangun Nagoro	673	C#	2022-09-29 11:31:32
3	Ahmad Barhamje	675	C#	2022-11-26 14:05:38
4	Abdulkerim Kurgas	691	C#	2023-06-24 19:15:31
5	Narek Sargsyan	719	C#	2025-08-31 12:54:29
6	Göran Andersson	784	C#	2022-06-12 10:16:50
7	Hidden user	847	C#	2022-08-22 10:03:21
8	דורון קריטנשטיין	847	C#	2025-09-07 14:34:18
9	Umar Rasyid	895	C#	2025-05-31 23:00:05
10	Mikael Fiala-Lundström	1207	C#	2022-02-12 15:53:24

#	User	Length	Language	Date
1	Yipin Wang	242	C++	2025-09-13 19:06:54
2	Dario Petrillo	279	C++	2022-11-28 19:16:06
3	Meng Siong Hwee	281	C++	2022-11-30 05:14:16
4	Seth Baunach	281	C++	2023-01-21 18:41:38
5	Veclenit Petrus Luca	287	C++	2025-05-14 17:08:24
6	Elias Lolck	290	C++	2023-10-04 10:15:08
7	Aistė Savickaitė	299	C++	2022-05-29 07:47:37
8	Haruto Tanaka	317	C++	2022-10-15 16:06:37
9	Hidden user	318	C++	2024-03-27 15:38:15
10	Ralf Merhof	319	C++	2024-05-20 19:15:25

#	User	Length	Language	Date
1	Tobias Glimmerfors	1072	COBOL	2024-02-28 20:53:12

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	362	F#	2022-10-12 10:33:06
2	J Blackquill	449	F#	2023-01-21 20:52:30

#	User	Length	Language	Date
1	Soren Basnet	398	Go	2025-05-16 03:47:59
2	Norbert Voelker	693	Go	2022-02-12 18:36:16

#	User	Length	Language	Date
1	David Zacek	302	Haskell	2022-02-12 16:06:13
2	Steinar Simonnes	348	Haskell	2024-05-06 09:06:35
3	Brent Yorgey	372	Haskell	2022-02-21 03:43:59
4	Sondre Lunde	475	Haskell	2023-06-23 08:41:33
5	Ng Tek In	705	Haskell	2022-08-19 15:48:10

#	User	Length	Language	Date
1	Nathaniel Lukas Christianto	455	Java	2023-12-26 09:18:06
2	Jona Beckmann	500	Java	2023-05-07 13:03:02
3	Saskia Merkel	523	Java	2022-10-12 22:31:15
4	Danil Braun	534	Java	2022-12-03 06:04:31
5	Siddharth Premjith	553	Java	2022-10-11 21:23:57
6	jin zhang	553	Java	2023-05-07 22:52:24
7	Edward Wei	576	Java	2022-10-11 21:29:15
8	Kushal Trivedi	578	Java	2025-09-13 19:15:59
9	Tyler Lindenmuth	580	Java	2024-01-16 18:52:19
10	Jason	601	Java	2023-05-19 04:50:41

#	User	Length	Language	Date
1	Minh Trang Nguyen	842	JavaScript (Node.js)	2025-12-05 10:28:09
2	Mikael Olausson	953	JavaScript (Node.js)	2022-10-27 13:10:38
3	Md. Johir Uddin	985	JavaScript (Node.js)	2025-12-11 15:50:44

#	User	Length	Language	Date
1	Jimmy Gustafsson	104	JavaScript (SpiderMonkey)	2024-07-26 22:03:54
2	Zach Tschetter	274	JavaScript (SpiderMonkey)	2023-06-23 02:18:31
3	Christian Pilegaard Cederquist	295	JavaScript (SpiderMonkey)	2023-01-18 22:24:11
4	Bjørn Chr. Soltvedt	321	JavaScript (SpiderMonkey)	2022-03-18 05:27:51

#	User	Length	Language	Date
1	Timothy Gaede	747	Julia	2024-04-10 22:58:06

#	User	Length	Language	Date
1	Fredrik	389	Kotlin	2022-10-27 13:33:18
2	Troy Warmboe	444	Kotlin	2023-04-12 00:49:59
3	Adam Rankin	711	Kotlin	2023-04-28 21:55:08
4	Ola Sundell	734	Kotlin	2023-07-23 14:04:17
5	Martijn Muijsers	921	Kotlin	2024-05-31 20:21:57
6	Aksel Holbek Sørbye	1276	Kotlin	2022-10-27 13:08:43

#	User	Length	Language	Date
1	Renate	343	PHP	2023-08-11 23:12:07

#	User	Length	Language	Date
1	Hakan Kjellerstrand	319	Prolog	2023-02-15 12:57:16

#	User	Length	Language	Date
1	Yanmarshus Bachtiar	231	Python 2	2023-02-15 05:38:53
2	Johan Lyts	237	Python 2	2022-11-17 21:00:09
3	Justin Su	253	Python 2	2020-11-22 01:12:46

#	User	Length	Language	Date
1	Thibault Raffaillac	133	Python 3	2023-08-13 14:14:34
2	Benjamin Z White	136	Python 3	2023-05-17 17:03:28
3	Ahmed Chamseddine	145	Python 3	2024-04-08 22:53:48
4	Lee Isaac	147	Python 3	2022-12-05 15:31:38
5	Christofer Ohlsson	150	Python 3	2022-09-11 18:56:49
6	Charles Ancheta	150	Python 3	2023-03-16 05:53:26
7	Farzam Abrishami	158	Python 3	2023-02-19 20:58:39
8	Paco Criado	166	Python 3	2023-08-12 15:47:30
9	Tai Tze Kin	166	Python 3	2024-05-05 20:55:27
10	Shashank Bhatt	175	Python 3	2023-01-22 17:38:59

#	User	Length	Language	Date
1	Thomas Feld	100	Ruby	2023-03-29 11:49:37
2	Drew Wilson	235	Ruby	2023-05-25 17:18:09

#	User	Length	Language	Date
1	Vincent Lagerros	591	Rust	2025-02-23 17:20:31
2	Isak Jägberg	682	Rust	2023-03-23 12:16:44
3	Artur Khuziakhmetov	711	Rust	2022-09-01 09:01:37
4	Joshua Freudenhammer	942	Rust	2025-09-28 00:14:46
5	Bas Dirks	1047	Rust	2022-02-12 09:41:27
6	jskop	1054	Rust	2022-06-20 17:11:52
7	gard heine kalland	2684	Rust	2024-06-16 17:07:55
8	Marcus Östling	2809	Rust	2024-01-10 18:19:02
9	Hidden user	3479	Rust	2025-02-03 23:30:10

Solution running time distribution