Problem A
Mia — Problem Statistics

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Submissions	8564
Accepted submissions	3447
Submission ratio	40.25%
Authors	3209
Full solves [?]	2931
Full solve Ratio	91.34%

#	User	Runtime	Language	Date
1	Ugnius Skučas	0.02 s	C#	2016-10-18 11:54:25
2	Aljaž Kosmač	0.02 s	C#	2016-11-29 15:32:36
3	Firas Al Omary	0.02 s	C#	2017-04-10 16:10:37
4	Sean Gorsky	0.02 s	C#	2017-10-13 00:50:01
5	Jonah Heller	0.02 s	C#	2018-01-17 11:57:53
6	Doug Goodman	0.02 s	C#	2018-03-02 22:16:32
7	Dustin Cook	0.02 s	C#	2018-07-08 09:26:21
8	Dylan Strohschein	0.02 s	C#	2018-12-05 21:05:52
9	Philip Classon	0.02 s	C#	2018-12-08 22:02:59
10	Sjoerd Teunisse	0.02 s	C#	2019-09-30 18:32:25

#	User	Runtime	Language	Date
1	crusoe	0.01 s	Common Lisp	2020-08-02 10:47:16
2	David Cawthon	0.01 s	Common Lisp	2020-09-13 00:07:00

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-10-22 09:25:34

#	User	Runtime	Language	Date
1	Husain Satan	0.01 s	Go	2023-11-23 20:51:14
2	n k	0.01 s	Go	2025-01-15 15:06:33
3	Norbert Voelker	0.02 s	Go	2021-05-15 10:42:03
4	Hidden user	0.02 s	Go	2023-04-17 22:50:18
5	Ian Howell	0.04 s	Go	2019-09-30 20:56:24
6	Conrad Parker	0.04 s	Go	2020-08-14 17:33:11
7	Magix	0.08 s	Go	2020-12-14 04:46:10
8	Krzysztof Gibuła	0.08 s	Go	2021-03-30 13:11:28

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2024-02-16 13:06:04
2	Blake Hyde	0.01 s	Haskell	2016-09-18 22:33:55
3	Johan Meier	0.01 s	Haskell	2017-01-08 22:14:33
4	Patrik Lilja	0.01 s	Haskell	2017-03-06 18:19:39
5	Brent Yorgey	0.01 s	Haskell	2017-11-22 15:15:38
6	Esther Chong	0.01 s	Haskell	2018-01-23 09:57:50
7	Hidden user	0.01 s	Haskell	2019-10-08 12:16:36
8	Daniel Cabral	0.01 s	Haskell	2020-01-28 15:35:46
9	Yen Tien	0.01 s	Haskell	2021-02-05 23:29:16
10	Jan Hrček	0.01 s	Haskell	2021-03-15 17:45:02

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2025-01-29 07:39:26
2	ziwen zhang	0.04 s	Java	2025-12-28 04:49:55
3	Samuel Klingström	0.05 s	Java	2017-05-12 20:51:09
4	Chen Shenghao	0.06 s	Java	2018-12-03 17:17:36
5	Sven Rönnbäck	0.06 s	Java	2022-02-13 10:40:48
6	Terrence Park	0.07 s	Java	2016-07-07 04:04:54
7	Liam Keliher	0.07 s	Java	2016-07-18 17:38:47
8	Martijn Muijsers	0.07 s	Java	2016-10-05 20:10:46
9	Steven Cheng	0.07 s	Java	2017-12-19 18:21:26
10	Ashu Yadav	0.07 s	Java	2018-06-21 13:41:21

#	User	Runtime	Language	Date
1	Sander Hellesø	0.07 s	JavaScript (Node.js)	2019-04-22 08:57:15
2	luna lovegood	0.10 s	JavaScript (Node.js)	2019-01-21 05:00:43
3	Chris Wong	0.43 s	JavaScript (Node.js)	2022-01-23 21:02:15
4	Jira Angel	0.45 s	JavaScript (Node.js)	2021-04-13 12:50:22

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-07-25 12:42:55
2	Christian LaCourt	0.01 s	JavaScript (SpiderMonkey)	2016-09-13 22:24:18
3	Paul Leung	0.01 s	JavaScript (SpiderMonkey)	2017-03-27 16:41:06
4	bgtmp	0.01 s	JavaScript (SpiderMonkey)	2018-04-18 00:08:55
5	Rory Stolzenberg	0.01 s	JavaScript (SpiderMonkey)	2018-04-18 00:10:42
6	Peter Kedemo	0.02 s	JavaScript (SpiderMonkey)	2016-07-10 08:03:09
7	J M	0.02 s	JavaScript (SpiderMonkey)	2016-11-20 23:53:27
8	Casey Smith	0.03 s	JavaScript (SpiderMonkey)	2019-02-16 20:04:39
9	Peter Menyes	0.03 s	JavaScript (SpiderMonkey)	2021-10-10 13:37:08
10	Jimmy Gustafsson	0.03 s	JavaScript (SpiderMonkey)	2024-08-06 13:41:42

#	User	Runtime	Language	Date
1	Danny Robinson	0.53 s	Julia	2023-11-18 23:23:14
2	Timothy Gaede	0.55 s	Julia	2024-06-15 05:57:17

#	User	Runtime	Language	Date
1	Ravisai Tiruvuri	0.18 s	Kotlin	2024-03-11 16:05:51
2	James WIlliams	0.20 s	Kotlin	2020-08-31 02:23:07
3	Adam Rankin	0.24 s	Kotlin	2023-05-10 01:07:32
4	Thanh Le	0.27 s	Kotlin	2020-09-22 00:46:46
5	Johnny Baloney	0.27 s	Kotlin	2021-09-09 20:06:30
6	Adam Koprowski	0.28 s	Kotlin	2020-09-11 16:06:29
7	Dayan Ruben Gonzalez	0.28 s	Kotlin	2020-10-01 18:43:58
8	Amaan Marfatia	0.28 s	Kotlin	2022-02-12 00:24:31
9	Sergey Jakobsen	0.29 s	Kotlin	2021-07-21 16:32:42
10	Dmitry Shostak	0.30 s	Kotlin	2019-09-22 16:37:57

#	User	Runtime	Language	Date
1	Sander de Haan	0.00 s	Lua	2025-04-09 13:32:59
2	Shehab Ahmed Hatem	0.01 s	Lua	2023-11-16 20:31:17

#	User	Runtime	Language	Date
1	Yuanting Mao	0.00 s	OCaml	2023-08-02 00:02:08
2	Sebastian Banert	0.00 s	OCaml	2024-09-26 15:55:20
3	Samuel Jefferis	0.01 s	OCaml	2020-10-28 03:14:40

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2019-07-06 09:24:11

#	User	Runtime	Language	Date
1	Denis BAURAIN	0.01 s	Perl	2025-12-27 20:38:36

#	User	Runtime	Language	Date
1	Susanne Ragnemalm	0.01 s	PHP	2018-04-03 23:12:48
2	Peter Kvick	0.01 s	PHP	2020-02-05 23:04:55
3	Connor Billings	0.01 s	PHP	2020-10-21 21:22:07
4	陳建宏	0.01 s	PHP	2021-06-02 17:44:22
5	Renate Fiala-Lundström	0.01 s	PHP	2021-07-17 21:26:43

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.03 s	Prolog	2023-02-17 10:36:36

#	User	Runtime	Language	Date
1	Fatima Afzali	0.04 s	Python 2	2018-09-01 16:47:29
2	Christofer Ohlsson	0.05 s	Python 2	2016-07-07 04:58:22
3	Isaac Lee	0.05 s	Python 2	2016-07-19 01:06:53
4	Stefan Kennedy	0.05 s	Python 2	2016-12-22 19:04:39
5	Maksym Bendeberia	0.05 s	Python 2	2017-06-07 21:51:18
6	Esben Bjerre	0.05 s	Python 2	2018-10-10 19:27:30
7	Jesper Öqvist	0.05 s	Python 2	2018-10-28 16:46:20
8	Julio Maldonado	0.05 s	Python 2	2019-03-22 21:08:49
9	Yanmarshus Bachtiar	0.05 s	Python 2	2019-10-31 06:19:35
10	Andrei Stoica	0.05 s	Python 2	2020-11-04 10:29:40

#	User	Runtime	Language	Date
1	Wayne	0.02 s	Python 3	2016-07-09 11:35:11
2	Isaac Lee	0.02 s	Python 3	2016-07-19 01:05:58
3	Arnar Bjarni Arnarson	0.02 s	Python 3	2016-09-09 22:28:04
4	Christian Lindeström	0.02 s	Python 3	2016-10-12 18:39:53
5	Matthew Casserly	0.02 s	Python 3	2016-10-13 14:33:45
6	Scott Xu	0.02 s	Python 3	2016-10-20 20:14:51
7	Austin Teshuba	0.02 s	Python 3	2016-10-26 01:53:27
8	Ryan Zhang	0.02 s	Python 3	2016-10-26 02:19:36
9	Aaron Li	0.02 s	Python 3	2016-10-27 20:56:03
10	Hiep Phan	0.02 s	Python 3	2016-11-10 03:52:50

#	User	Runtime	Language	Date
1	Daniel Harder	0.05 s	Ruby	2018-09-01 02:16:26
2	Uğurcan Eser	0.05 s	Ruby	2018-11-09 18:57:35
3	Hidden user	0.05 s	Ruby	2019-10-08 16:27:50
4	Kok Dith	0.05 s	Ruby	2021-08-24 13:45:51
5	Thomas Feld	0.06 s	Ruby	2023-08-21 10:06:21
6	Russell Ng	0.06 s	Ruby	2025-05-23 07:45:46

#	User	Length	Language	Date
1	Eduardo Núñez	202	C	2024-02-29 22:56:26
2	Mattia Marziali	223	C	2024-02-17 13:05:58
3	a_b__c	524	C	2021-02-02 16:37:23
4	PhilCampbell	569	C	2021-02-17 12:32:16
5	Zach Robertson	617	C	2024-02-26 16:46:20
6	Hidden user	636	C	2024-03-08 01:13:27
7	Lee Geng Yu	642	C	2018-01-15 04:35:42
8	Mitchell Wright	645	C	2020-04-02 00:19:24
9	Hidden user	646	C	2018-01-21 14:17:06
10	Hidden user	653	C	2024-09-16 06:17:16

#	User	Length	Language	Date
1	Göran Andersson	910	C#	2022-05-16 17:35:26
2	Ludwig Hedeby	1141	C#	2019-11-05 18:36:08
3	Yevgeniy Sheyer	1284	C#	2025-03-05 03:34:19
4	Ali Aliev	1406	C#	2022-04-07 12:59:50
5	Marcin Er	1452	C#	2020-01-17 20:02:50
6	Doug Goodman	1474	C#	2018-03-02 22:16:32
7	samvid mistry	1480	C#	2024-12-07 08:45:52
8	Thomas Norris	1546	C#	2019-11-27 13:08:20
9	Joep Lijnen	1597	C#	2019-09-30 18:33:34
10	Hidden user	1597	C#	2023-02-03 12:11:44

#	User	Length	Language	Date
1	Mattia Marziali	246	C++	2024-02-17 12:13:09
2	Adil Rasiyani	309	C++	2023-03-03 04:25:25
3	Hidden user	361	C++	2023-03-03 06:11:47
4	Hakan Kjellerstrand	379	C++	2025-02-22 20:09:06
5	Jerrell Ezralemuel	398	C++	2018-10-23 17:30:03
6	王子菱	435	C++	2025-06-01 03:21:13
7	Hidden user	437	C++	2023-09-10 08:58:56
8	Pavel Tsyptsyn	438	C++	2022-11-30 19:05:42
9	Muhammad Fawad Shah	441	C++	2025-10-18 13:44:01
10	Hidden user	447	C++	2025-03-16 03:46:05

#	User	Length	Language	Date
1	David Cawthon	1242	Common Lisp	2020-09-13 00:07:00
2	crusoe	2029	Common Lisp	2020-08-02 10:47:16

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	678	F#	2022-10-22 09:25:34

#	User	Length	Language	Date
1	Krzysztof Gibuła	798	Go	2021-03-30 13:11:28
2	n k	828	Go	2025-01-15 15:06:33
3	Hidden user	907	Go	2023-04-17 22:50:18
4	Conrad Parker	987	Go	2020-08-14 17:33:11
5	Norbert Voelker	1067	Go	2021-05-15 10:42:03
6	Ian Howell	1213	Go	2019-09-30 20:56:24
7	Husain Satan	1464	Go	2023-11-23 20:51:14
8	Magix	1483	Go	2020-12-14 04:46:10

#	User	Length	Language	Date
1	Rudy Matela	198	Haskell	2024-05-05 10:49:33
2	Nicholas Marsh	421	Haskell	2022-09-18 14:00:13
3	Li Jun	458	Haskell	2023-06-20 17:53:16
4	Hidden user	549	Haskell	2022-12-10 21:41:18
5	Patrik Lilja	644	Haskell	2017-03-06 18:19:39
6	Esther Chong	872	Haskell	2018-01-23 09:57:50
7	Jan Hrček	887	Haskell	2021-03-15 17:45:02
8	Trung Do	956	Haskell	2025-06-15 06:17:44
9	Steinar Simonnes	964	Haskell	2024-02-16 13:06:04
10	Johan Meier	1050	Haskell	2017-01-08 22:14:33

#	User	Length	Language	Date
1	Doug Goodman	591	Java	2018-02-20 22:47:19
2	冯奕晖	723	Java	2018-09-30 18:42:20
3	Meghan Lin	728	Java	2019-10-10 19:40:29
4	Chan Jun Yang	758	Java	2018-06-26 10:10:11
5	Nyamdavaa Amar	763	Java	2021-07-15 09:07:48
6	Chong Yan Kai	768	Java	2025-01-20 10:19:07
7	Ng Yuan Yun Nigel	779	Java	2018-07-02 15:18:50
8	LovetheFrogs	781	Java	2023-07-17 06:06:47
9	Huang Jingnan	799	Java	2018-06-13 14:57:41
10	Hidden user	829	Java	2018-05-28 08:23:26

#	User	Length	Language	Date
1	Sander Hellesø	1106	JavaScript (Node.js)	2019-04-22 08:57:15
2	Chris Wong	1132	JavaScript (Node.js)	2022-01-23 21:02:15
3	Jira Angel	1143	JavaScript (Node.js)	2021-04-13 12:50:22
4	luna lovegood	23490	JavaScript (Node.js)	2019-01-21 05:00:43

#	User	Length	Language	Date
1	Jimmy Gustafsson	197	JavaScript (SpiderMonkey)	2024-08-06 13:41:42
2	Bjørn Chr. Soltvedt	475	JavaScript (SpiderMonkey)	2016-07-25 12:42:55
3	Peter Kedemo	665	JavaScript (SpiderMonkey)	2016-07-10 08:03:09
4	Christian LaCourt	701	JavaScript (SpiderMonkey)	2016-09-13 22:24:18
5	Casey Smith	707	JavaScript (SpiderMonkey)	2019-02-16 20:04:39
6	Paul Leung	747	JavaScript (SpiderMonkey)	2017-03-27 16:41:06
7	bgtmp	804	JavaScript (SpiderMonkey)	2018-04-18 00:08:55
8	Peter Menyes	819	JavaScript (SpiderMonkey)	2021-10-10 13:37:08
9	J M	854	JavaScript (SpiderMonkey)	2016-11-20 23:53:27
10	Christian Pilegaard Cederquist	987	JavaScript (SpiderMonkey)	2023-01-17 22:37:22

#	User	Length	Language	Date
1	Danny Robinson	191	Julia	2023-11-18 23:23:14
2	Timothy Gaede	956	Julia	2024-06-15 05:57:17

#	User	Length	Language	Date
1	Amaan Marfatia	667	Kotlin	2022-02-12 00:24:31
2	Adam Koprowski	713	Kotlin	2020-09-11 16:06:29
3	Chris Johnson	723	Kotlin	2025-03-12 19:59:32
4	Johnny Baloney	836	Kotlin	2021-09-09 20:06:30
5	Dmitry Shostak	950	Kotlin	2019-09-22 16:37:57
6	Dayan Ruben Gonzalez	956	Kotlin	2020-10-01 18:43:58
7	Adam Rankin	968	Kotlin	2023-05-10 01:07:32
8	Troy Warmboe	1067	Kotlin	2020-03-07 01:38:57
9	Sergey Jakobsen	1334	Kotlin	2021-07-21 16:43:40
10	Neil Harmon	1964	Kotlin	2019-07-24 08:30:00

#	User	Length	Language	Date
1	Sander de Haan	713	Lua	2025-04-09 13:32:59
2	Shehab Ahmed Hatem	1244	Lua	2023-11-16 20:31:17

#	User	Length	Language	Date
1	Sebastian Banert	463	OCaml	2024-09-26 15:55:20
2	Yuanting Mao	538	OCaml	2023-08-02 00:09:05
3	Samuel Jefferis	1410	OCaml	2020-10-28 03:14:40

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1290	Pascal	2019-07-06 09:24:11

#	User	Length	Language	Date
1	Denis BAURAIN	993	Perl	2025-12-27 20:38:36

#	User	Length	Language	Date
1	Susanne Ragnemalm	690	PHP	2018-04-03 23:12:48
2	Renate Fiala-Lundström	975	PHP	2021-07-17 21:26:43
3	Peter Kvick	1216	PHP	2020-02-05 23:04:55
4	Connor Billings	1231	PHP	2020-10-21 21:22:07
5	陳建宏	1885	PHP	2021-06-02 17:44:22

#	User	Length	Language	Date
1	Hakan Kjellerstrand	456	Prolog	2023-02-17 10:36:36

#	User	Length	Language	Date
1	Thomas Feld	302	Python 2	2019-08-27 11:09:23
2	Andreas Björklund	376	Python 2	2019-10-17 06:26:05
3	Christofer Ohlsson	393	Python 2	2016-07-07 04:58:22
4	ACHRAF EL-HASSANY	413	Python 2	2021-04-06 06:35:54
5	Riko Jacob	419	Python 2	2019-02-16 17:53:47
6	Godmar Back	432	Python 2	2019-01-01 02:02:01
7	Oskar Haarklou Veileborg	437	Python 2	2018-09-21 07:25:51
8	Sivasankaran D	478	Python 2	2026-01-09 09:15:18
9	Maksym Bendeberia	491	Python 2	2017-06-07 21:51:18
10	Johan Lyts	491	Python 2	2019-11-27 13:19:41

#	User	Length	Language	Date
1	Hidden user	206	Python 3	2023-03-03 10:22:11
2	Tai Tze Kin	243	Python 3	2024-05-06 17:14:56
3	Farzam Abrishami	266	Python 3	2023-07-16 18:00:54
4	Thibault Raffaillac	287	Python 3	2020-01-24 10:12:27
5	Charles Ancheta	297	Python 3	2023-03-25 20:40:52
6	Hu Yijie	300	Python 3	2022-03-11 11:17:19
7	Clement Oh	306	Python 3	2024-01-02 12:27:23
8	Kelly Dance	306	Python 3	2024-09-24 21:52:13
9	Shashank Bhatt	308	Python 3	2024-08-26 16:37:00
10	Karra Caye Santillan	317	Python 3	2025-08-06 01:25:24

#	User	Length	Language	Date
1	Thomas Feld	138	Ruby	2023-08-21 10:10:50
2	Russell Ng	164	Ruby	2025-05-23 07:45:46
3	Hidden user	307	Ruby	2019-10-08 16:27:50
4	Kok Dith	382	Ruby	2021-08-24 13:45:51
5	Daniel Harder	521	Ruby	2018-09-01 02:16:26
6	Uğurcan Eser	1254	Ruby	2018-11-09 18:57:35

#	User	Length	Language	Date
1	Hidden user	780	Rust	2025-11-01 20:09:01
2	Jesper Bech Christensen	784	Rust	2022-02-28 16:04:03
3	Vincent Lagerros	814	Rust	2025-06-12 22:50:33
4	Artur Khuziakhmetov	988	Rust	2022-07-24 06:35:58
5	Pizza Hut	1215	Rust	2025-02-01 17:54:23
6	Grant Greer	1240	Rust	2024-11-08 07:11:35
7	Anthony Clays	1430	Rust	2018-11-17 11:07:57
8	Laura Parkes	1548	Rust	2022-08-27 19:42:49
9	Eric Pinter	1636	Rust	2022-05-15 01:46:30
10	Thobias Larsen	1666	Rust	2023-01-31 12:55:56

Solution running time distribution