Problem A
Thanos — Problem Statistics

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Submissions	13694
Accepted submissions	3765
Submission ratio	27.49%
Authors	3448
Full solves [?]	3009
Full solve Ratio	87.27%

#	User	Runtime	Language	Date
1	Henrik Hallbert	0.03 s	C#	2021-11-30 14:22:42
2	Mikael Fiala-Lundström	0.03 s	C#	2021-12-12 19:39:29
3	Nicholas Gulley	0.03 s	C#	2022-12-03 19:04:08
4	Nathan Lee	0.03 s	C#	2022-12-03 19:34:42
5	Sebastian Sternberg	0.04 s	C#	2021-02-19 20:31:37
6	Albert Hornbaek	0.04 s	C#	2021-05-05 10:18:23
7	Harry Higgins	0.04 s	C#	2024-02-09 15:48:13
8	Marcus Östling	0.04 s	C#	2024-03-11 15:00:17
9	traxex	0.04 s	C#	2024-04-30 12:17:41
10	Գոռ Բաղդասարյան	0.05 s	C#	2025-03-17 13:02:56

#	User	Runtime	Language	Date
1	David Cawthon	0.02 s	Common Lisp	2020-09-12 17:32:46
2	Hidden user	0.04 s	Common Lisp	2019-06-07 21:51:29

#	User	Runtime	Language	Date
1	Hjalte Sorgenfrei Mac Dalland	0.05 s	F#	2020-03-27 15:40:07
2	Magnus Christensen	0.05 s	F#	2022-10-04 22:10:01
3	Jacob Harris Cryer Kragh	0.09 s	F#	2023-01-28 09:27:27

#	User	Runtime	Language	Date
1	n k	0.01 s	Go	2025-01-14 20:45:23
2	Annopdanai Pamarapa	0.05 s	Go	2024-02-15 04:52:08
3	Norbert Voelker	0.08 s	Go	2021-08-25 11:50:50
4	Sergey Jakobsen	0.15 s	Go	2022-04-02 15:49:49

#	User	Runtime	Language	Date
1	Brent Yorgey	0.01 s	Haskell	2019-01-02 21:09:51
2	Esther Chong	0.01 s	Haskell	2019-01-20 16:32:03
3	Vicky Nguyen	0.01 s	Haskell	2022-10-09 16:09:10
4	Hidden user	0.01 s	Haskell	2022-12-17 12:44:08
5	Steinar Simonnes	0.01 s	Haskell	2025-01-01 22:20:54
6	Ivan Jaramillo	0.02 s	Haskell	2020-11-24 05:30:53
7	Erik von Brömssen	0.02 s	Haskell	2021-06-26 19:22:43
8	Agus Sentosa	0.02 s	Haskell	2021-10-27 20:21:35
9	Aaron Lengyel	0.02 s	Haskell	2021-11-03 06:56:55
10	Anders Aarsæther	0.02 s	Haskell	2021-11-11 16:22:03

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2025-01-29 08:58:50
2	Sven Rönnbäck	0.06 s	Java	2023-02-03 21:44:12
3	Jimmy Dinh	0.07 s	Java	2023-01-18 17:07:03
4	Ahmad Barhamje	0.07 s	Java	2023-08-17 01:35:50
5	Catherine Park	0.07 s	Java	2024-01-14 17:42:59
6	Daniel Kun Zhang	0.07 s	Java	2025-01-21 21:52:01
7	CUX "INDIO" PRADA	0.08 s	Java	2024-08-24 17:57:12
8	Jovan Yo Shihao	0.08 s	Java	2024-09-23 04:16:19
9	Liew Shuang Yuan	0.08 s	Java	2024-09-23 12:12:43
10	Choo Jun Inn Darren	0.08 s	Java	2024-09-28 08:38:38

#	User	Runtime	Language	Date
1	Bowen Steinke	0.07 s	JavaScript (Node.js)	2023-10-07 20:10:37
2	Papa Kwame Segen Yeboah	0.07 s	JavaScript (Node.js)	2023-10-11 05:40:40
3	Gonçalo Novo	0.07 s	JavaScript (Node.js)	2025-07-25 11:43:19
4	Carson Bragg	0.08 s	JavaScript (Node.js)	2023-10-07 21:32:32
5	Eyiara Oladipo	0.08 s	JavaScript (Node.js)	2024-10-26 22:37:06
6	tannal	0.09 s	JavaScript (Node.js)	2024-01-17 14:26:07
7	Sean Hurt	0.13 s	JavaScript (Node.js)	2022-12-03 19:44:58
8	Andoko Chandra	0.45 s	JavaScript (Node.js)	2020-10-22 19:58:36
9	Gilaad Elstein	0.47 s	JavaScript (Node.js)	2021-07-03 16:30:51

#	User	Runtime	Language	Date
1	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-03-30 12:44:10
2	Jimmy Gustafsson	0.03 s	JavaScript (SpiderMonkey)	2025-07-11 23:43:54
3	Bjørn Chr. Soltvedt	0.04 s	JavaScript (SpiderMonkey)	2018-12-30 19:27:52

#	User	Runtime	Language	Date
1	Timothy Gaede	0.53 s	Julia	2024-05-16 06:00:55

#	User	Runtime	Language	Date
1	Hidden user	0.18 s	Kotlin	2020-04-14 00:06:29
2	Chris Johnson	0.25 s	Kotlin	2023-11-28 00:38:28
3	SatishKumar Gollapudi	0.26 s	Kotlin	2023-06-29 10:51:19
4	Adam Rankin	0.30 s	Kotlin	2023-04-22 01:15:15
5	Dmitry Shostak	0.34 s	Kotlin	2019-09-14 07:27:20

#	User	Runtime	Language	Date
1	Zeheng Li	0.01 s	Lua	2023-12-04 23:18:20
2	Shinji Koshida	0.01 s	Lua	2025-04-01 23:14:29

#	User	Runtime	Language	Date
1	Samuel Jefferis	0.01 s	OCaml	2020-10-27 03:39:37

#	User	Runtime	Language	Date
1	陳建宏	0.01 s	PHP	2021-05-30 10:45:18

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.04 s	Prolog	2022-08-20 14:01:18

#	User	Runtime	Language	Date
1	Ciara Godwin	0.04 s	Python 2	2018-10-11 18:22:47
2	Hermon Mulat	0.05 s	Python 2	2018-11-06 00:59:26
3	João Pedro Alvito	0.05 s	Python 2	2018-12-18 00:01:05
4	Ram Basnet	0.05 s	Python 2	2020-04-23 02:29:42
5	Yanmarshus Bachtiar	0.05 s	Python 2	2020-09-14 03:21:38
6	Conroy Trinh	0.06 s	Python 2	2018-09-29 19:27:56
7	Oskar Larsson	0.06 s	Python 2	2019-04-12 23:04:37
8	Thomas Feld	0.06 s	Python 2	2020-06-18 10:38:53
9	Eoin Davey	0.07 s	Python 2	2018-09-29 18:59:49
10	Eoin Davey	0.07 s	Python 2	2018-09-30 02:47:27

#	User	Runtime	Language	Date
1	David Gaeta	0.02 s	Python 3	2019-09-12 02:18:53
2	Sharan Magavi	0.02 s	Python 3	2019-10-04 15:16:46
3	Martin Neihoff	0.02 s	Python 3	2019-10-09 10:45:16
4	Joshua Coward	0.02 s	Python 3	2019-11-11 19:48:18
5	Yosuke Mizutani	0.02 s	Python 3	2019-12-28 00:00:36
6	Dijkstra Papapa	0.03 s	Python 3	2018-09-29 18:21:22
7	Hidden user	0.03 s	Python 3	2018-09-29 18:39:41
8	Aaditya Dave	0.03 s	Python 3	2018-09-29 19:02:52
9	Ryan Woodard	0.03 s	Python 3	2018-09-29 19:34:16
10	Tongfei Zhou	0.03 s	Python 3	2018-09-29 19:39:09

#	User	Runtime	Language	Date
1	Miorel Palii	0.05 s	Ruby	2018-11-05 06:10:51
2	Macdara mac an tSionnaigh	0.05 s	Ruby	2019-10-08 19:47:45
3	Hidden user	0.05 s	Ruby	2019-11-27 18:29:19
4	Josenildo Silva	0.05 s	Ruby	2020-05-01 21:53:09
5	Thomas Feld	0.07 s	Ruby	2023-02-07 11:41:33
6	Russell Ng	0.07 s	Ruby	2025-05-23 06:19:57

#	User	Runtime	Language	Date
1	Jonathan	0.00 s	Rust	2021-11-04 20:08:17
2	Gyanendra Shukla	0.00 s	Rust	2023-01-24 06:58:50
3	Thobias Larsen	0.00 s	Rust	2023-01-29 00:54:12
4	Egor Kulikov	0.00 s	Rust	2024-11-19 12:00:20
5	Vincent Lagerros	0.00 s	Rust	2024-12-04 00:08:26
6	Isak Jägberg	0.00 s	Rust	2025-05-06 18:25:19
7	Joe Blower	0.00 s	Rust	2025-08-21 18:13:20
8	Christofer Nolander	0.01 s	Rust	2018-11-17 11:34:05
9	Eric Pinter	0.01 s	Rust	2020-01-11 04:12:58
10	Anders Lindskov Kloborg	0.01 s	Rust	2020-07-26 17:55:26

#	User	Runtime	Language	Date
1	Vincent Buchner	0.07 s	TypeScript	2025-05-15 18:32:55
2	Shulei Wang	0.08 s	TypeScript	2025-05-16 23:37:55

#	User	Length	Language	Date
1	Eduardo Núñez	124	C	2024-02-29 22:13:18
2	Song, Junhao	229	C	2020-09-16 17:12:15
3	Marcus Blücher	263	C	2019-10-03 21:21:04
4	Hidden user	264	C	2022-12-24 09:24:53
5	度雨	268	C	2025-03-06 15:01:00
6	Eldwin Sianto	272	C	2025-05-24 09:10:51
7	Yosuke Yung	273	C	2025-05-22 05:03:48
8	Zach Robertson	305	C	2024-02-22 04:46:20
9	Adi Guna Susilo	305	C	2025-05-25 06:32:31
10	Ata Kırcadağ	309	C	2025-04-12 14:07:22

#	User	Length	Language	Date
1	traxex	337	C#	2024-04-30 12:17:41
2	Esty Crow	452	C#	2025-07-11 13:42:27
3	Anthony Ye	504	C#	2025-07-18 20:42:46
4	Lindsey Moseley	619	C#	2025-05-16 04:26:04
5	Գոռ Բաղդասարյան	621	C#	2025-03-17 13:02:56
6	Sebastian Sternberg	714	C#	2021-02-19 20:31:37
7	Mikael Fiala-Lundström	744	C#	2021-12-12 19:37:13
8	Márton Krauter	756	C#	2023-07-20 12:57:11
9	Henrik Hallbert	795	C#	2021-11-30 14:22:42
10	Harry Higgins	808	C#	2024-02-09 15:48:13

#	User	Length	Language	Date
1	Tyler Fernando	130	C++	2022-11-08 03:57:21
2	Angela Qian	130	C++	2025-02-06 20:14:56
3	Frans Meulenbroeks	133	C++	2024-09-29 18:26:23
4	Hakan Kjellerstrand	142	C++	2025-02-22 11:16:31
5	Mathias Gernez	149	C++	2023-08-29 18:44:44
6	Guk Yi Siong	154	C++	2023-06-13 15:34:48
7	蔡童彥	195	C++	2024-11-17 06:13:18
8	45趙郡儀Ivy	199	C++	2024-11-08 07:37:29
9	101 36葉上寧	202	C++	2022-10-17 15:56:06
10	QQ熊貓	202	C++	2025-07-16 13:24:16

#	User	Length	Language	Date
1	Hidden user	162	Common Lisp	2019-06-07 21:51:29
2	David Cawthon	419	Common Lisp	2020-09-12 17:32:46

#	User	Length	Language	Date
1	Hjalte Sorgenfrei Mac Dalland	495	F#	2020-03-27 15:40:07
2	Jacob Harris Cryer Kragh	792	F#	2023-01-28 09:27:27
3	Magnus Christensen	1063	F#	2022-10-04 22:10:01

#	User	Length	Language	Date
1	Sergey Jakobsen	241	Go	2022-04-02 15:49:49
2	n k	259	Go	2025-01-14 20:45:23
3	Annopdanai Pamarapa	263	Go	2024-02-15 04:52:08
4	Norbert Voelker	561	Go	2021-08-25 11:50:50

#	User	Length	Language	Date
1	Aaron Lengyel	237	Haskell	2021-11-03 06:56:55
2	Mason Barnhill	255	Haskell	2023-09-08 21:17:50
3	Agus Sentosa	264	Haskell	2021-10-27 20:21:35
4	Oliver O`Loughlin	308	Haskell	2021-11-11 16:31:13
5	Hidden user	324	Haskell	2022-12-17 12:44:08
6	Anders Aarsæther	383	Haskell	2021-11-11 16:22:03
7	Esther Chong	483	Haskell	2019-01-20 16:32:03
8	Vicky Nguyen	588	Haskell	2022-10-09 16:09:10
9	Steinar Simonnes	604	Haskell	2025-01-01 22:22:07
10	Erik von Brömssen	681	Haskell	2021-06-26 19:22:43

#	User	Length	Language	Date
1	Sam Huynh	367	Java	2021-07-21 09:59:54
2	Crystal Yang	375	Java	2023-07-22 20:47:53
3	Eric Leow Yu Quan	383	Java	2021-01-01 08:04:58
4	Le Minh Hoang	389	Java	2024-09-30 13:30:45
5	Kevin Glatts	391	Java	2023-06-06 19:37:46
6	Abishai Anargya Halim	397	Java	2024-08-21 05:16:26
7	Raheja Arshelle	398	Java	2024-08-22 04:23:04
8	Stephen Young	409	Java	2023-01-05 01:29:04
9	Yinkai Gao	410	Java	2023-07-26 00:57:59
10	Anthony Li	414	Java	2022-10-15 17:28:26

#	User	Length	Language	Date
1	Gonçalo Novo	514	JavaScript (Node.js)	2025-07-25 11:43:19
2	Papa Kwame Segen Yeboah	536	JavaScript (Node.js)	2023-10-11 05:40:40
3	Carson Bragg	576	JavaScript (Node.js)	2023-10-07 21:32:32
4	Sean Hurt	601	JavaScript (Node.js)	2022-12-03 19:44:58
5	Bowen Steinke	635	JavaScript (Node.js)	2023-10-07 20:10:37
6	Eyiara Oladipo	703	JavaScript (Node.js)	2024-10-26 22:37:06
7	Gilaad Elstein	846	JavaScript (Node.js)	2021-07-03 16:30:51
8	tannal	912	JavaScript (Node.js)	2024-01-17 14:26:07
9	Andoko Chandra	927	JavaScript (Node.js)	2020-10-22 19:58:36

#	User	Length	Language	Date
1	Jimmy Gustafsson	95	JavaScript (SpiderMonkey)	2025-07-11 23:46:31
2	Christian Cederquist	170	JavaScript (SpiderMonkey)	2023-03-30 12:44:10
3	Bjørn Chr. Soltvedt	304	JavaScript (SpiderMonkey)	2018-12-30 19:27:52

#	User	Length	Language	Date
1	Timothy Gaede	505	Julia	2024-05-16 06:00:55

#	User	Length	Language	Date
1	Dmitry Shostak	257	Kotlin	2019-09-14 07:27:20
2	Adam Rankin	428	Kotlin	2023-04-22 01:15:15
3	Chris Johnson	479	Kotlin	2023-11-28 00:38:28
4	SatishKumar Gollapudi	773	Kotlin	2023-06-29 10:51:19
5	Hidden user	809	Kotlin	2020-04-14 00:06:29

#	User	Length	Language	Date
1	Zeheng Li	159	Lua	2023-12-04 23:18:20
2	Shinji Koshida	221	Lua	2025-04-01 23:14:29

#	User	Length	Language	Date
1	Samuel Jefferis	1067	OCaml	2020-10-27 03:39:37

#	User	Length	Language	Date
1	陳建宏	1205	PHP	2021-05-30 10:45:18

#	User	Length	Language	Date
1	Andriy Zyevakov	456	Prolog	2022-08-20 14:01:18

#	User	Length	Language	Date
1	Andreas Björklund	126	Python 2	2021-11-09 18:21:59
2	Dmitry Lyubshin	137	Python 2	2018-10-01 01:41:49
3	Lars Åström	142	Python 2	2020-03-05 12:33:56
4	Johan Lyts	148	Python 2	2020-10-11 13:58:53
5	Mukerem Ali Nur	149	Python 2	2019-11-16 20:28:57
6	Guan Yang Ze	151	Python 2	2019-09-27 09:40:28
7	Wang Zhi Jian	163	Python 2	2019-05-04 18:00:52
8	Thomas Feld	164	Python 2	2020-06-18 10:38:53
9	Eoin Davey	175	Python 2	2018-09-29 18:59:49
10	Eoin Davey	175	Python 2	2018-09-30 02:47:27

#	User	Length	Language	Date
1	Charles Ancheta	93	Python 3	2023-03-25 21:10:48
2	Hugo Morvan	94	Python 3	2022-11-27 03:04:49
3	Farzam Abrishami	94	Python 3	2023-06-30 22:42:21
4	David Aldenbro	96	Python 3	2025-08-24 10:49:51
5	Ahmed Chamseddine	98	Python 3	2024-09-17 09:12:55
6	Zach Tschetter	99	Python 3	2022-11-23 04:22:15
7	Hidden user	115	Python 3	2022-10-11 16:15:24
8	Elias Amha	117	Python 3	2019-11-14 16:07:33
9	Benjamin Z White	117	Python 3	2023-03-29 13:17:03
10	Yong Mao	119	Python 3	2023-12-14 22:23:08

#	User	Length	Language	Date
1	Thomas Feld	59	Ruby	2023-02-07 11:41:33
2	Russell Ng	67	Ruby	2025-05-23 06:19:57
3	Miorel Palii	133	Ruby	2018-11-05 06:10:51
4	Josenildo Silva	153	Ruby	2020-05-01 21:53:09
5	Macdara mac an tSionnaigh	173	Ruby	2019-10-08 19:47:45
6	Hidden user	200	Ruby	2019-11-27 18:29:19

#	User	Length	Language	Date
1	Vincent Lagerros	256	Rust	2024-12-04 00:08:50
2	David Rasch	487	Rust	2021-04-29 17:20:52
3	Isak Jägberg	518	Rust	2025-05-06 18:25:19
4	Bas Dirks	532	Rust	2022-01-21 10:19:03
5	Eric Pinter	577	Rust	2020-01-11 04:12:58
6	Thobias Larsen	663	Rust	2023-01-29 00:54:12
7	poppyer	757	Rust	2022-04-16 05:38:14
8	Anders Lindskov Kloborg	934	Rust	2020-07-26 17:55:26
9	Christofer Nolander	1075	Rust	2018-11-17 11:34:05
10	Joe Blower	1695	Rust	2025-08-21 18:13:20

#	User	Length	Language	Date
1	Shulei Wang	651	TypeScript	2025-05-16 23:37:55
2	Vincent Buchner	1343	TypeScript	2025-05-15 18:32:55

Solution running time distribution