Problem A
Flow Layout — Problem Statistics

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Submissions	3031
Accepted submissions	1757
Submission ratio	57.97%
Authors	1751
Full solves [?]	1597
Full solve Ratio	91.21%

#	User	Runtime	Language	Date
1	Daouda Camara	0.02 s	C#	2015-09-19 20:06:46
2	Bas te Kolste	0.02 s	C#	2015-10-10 11:37:01
3	Robert Low	0.02 s	C#	2016-07-25 22:53:46
4	Duelene Olson	0.02 s	C#	2016-10-03 20:40:41
5	Hidden user	0.02 s	C#	2017-04-22 12:55:43
6	Ludwig Hedeby	0.02 s	C#	2019-11-05 19:22:34
7	Dan Wolff	0.02 s	C#	2020-02-08 12:50:06
8	Nguyen, Maria	0.02 s	C#	2021-08-17 08:05:23
9	Sarah Cullop	0.02 s	C#	2022-02-03 23:28:54
10	Henrik Hallbert	0.02 s	C#	2022-04-23 11:07:53

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2020-07-19 03:54:20

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-09-04 19:31:56

#	User	Runtime	Language	Date
1	Thomas	0.00 s	Go	2024-01-08 23:53:40
2	Ian Howell	0.02 s	Go	2021-02-05 20:25:30
3	Norbert Voelker	0.02 s	Go	2021-04-27 22:01:30
4	Kasper Overgaard Mortensen	0.02 s	Go	2021-09-30 21:39:23
5	Jimmy Nejtron	0.02 s	Go	2022-10-02 21:06:52

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2015-09-22 14:42:51
2	Hidden user	0.00 s	Haskell	2015-10-05 11:45:17
3	Jan Hlavacek	0.00 s	Haskell	2017-01-04 11:28:04
4	Matthew Johnson	0.00 s	Haskell	2017-01-07 23:07:06
5	Hidden user	0.00 s	Haskell	2019-09-04 13:19:28
6	Jan Hrček	0.00 s	Haskell	2021-03-13 07:57:37
7	Chan Ken	0.00 s	Haskell	2021-08-08 10:44:03
8	Hidden user	0.00 s	Haskell	2023-01-18 17:51:58
9	Steinar Simonnes	0.00 s	Haskell	2024-02-19 10:24:01

#	User	Runtime	Language	Date
1	David Wennström	0.05 s	Java	2006-09-26 18:34:56
2	Marco Vincenzo Karaan	0.05 s	Java	2015-09-19 19:19:58
3	Chris Wu	0.05 s	Java	2015-09-19 19:21:59
4	Nathaniel Lahn	0.05 s	Java	2015-09-19 19:31:59
5	Rupin Khera	0.05 s	Java	2015-09-19 19:38:29
6	Peter Steele	0.05 s	Java	2015-09-19 19:41:12
7	Kevin Wang	0.05 s	Java	2015-09-19 19:47:52
8	Viktor Lindberg	0.05 s	Java	2015-09-19 19:51:58
9	Hidden user	0.05 s	Java	2015-09-19 21:58:28
10	Love Engman	0.05 s	Java	2015-09-20 00:30:05

#	User	Runtime	Language	Date
1	Samuel Högfeldt	0.08 s	JavaScript (Node.js)	2022-08-20 12:48:48
2	Kyle Senebouttarath	0.08 s	JavaScript (Node.js)	2023-03-14 15:08:58
3	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-24 19:46:30
4	Chris Wong	0.42 s	JavaScript (Node.js)	2022-01-16 15:29:12

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-27 11:19:49
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-04-03 16:48:21
3	Ricardas Vaitkus	0.01 s	JavaScript (SpiderMonkey)	2016-04-13 23:40:07
4	Hà Minh Ngọc	0.01 s	JavaScript (SpiderMonkey)	2016-08-09 05:43:16
5	Tor Nordqvist	0.01 s	JavaScript (SpiderMonkey)	2016-10-31 15:45:10
6	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2022-06-22 23:01:29
7	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2022-10-21 15:54:48
8	Brennan Malone	0.02 s	JavaScript (SpiderMonkey)	2024-02-02 21:51:40
9	Peter Menyes	0.03 s	JavaScript (SpiderMonkey)	2021-09-18 22:03:08

#	User	Runtime	Language	Date
1	Timothy Gaede	0.55 s	Julia	2024-05-11 08:14:14

#	User	Runtime	Language	Date
1	Jacob Huebner	0.11 s	Kotlin	2022-03-09 18:38:06
2	Witte, Chet	0.11 s	Kotlin	2022-03-13 01:41:47
3	Sam Keyser	0.13 s	Kotlin	2023-03-08 17:58:40
4	Neil Harmon	0.19 s	Kotlin	2019-06-28 16:43:42
5	Adam Rankin	0.19 s	Kotlin	2023-09-01 20:23:25
6	Troy Warmboe	0.21 s	Kotlin	2023-04-12 20:59:54
7	Emil Wihlander	0.21 s	Kotlin	2024-07-22 00:02:14

#	User	Runtime	Language	Date
1	Shehab Ahmed Hatem	0.00 s	Lua	2023-11-29 18:29:47

#	User	Runtime	Language	Date
1	Sebastian Banert	0.00 s	OCaml	2024-07-22 01:23:23

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-03-09 17:09:33

#	User	Runtime	Language	Date
1	Jonathan Wan	0.02 s	Python 2	2015-09-19 20:18:06
2	Matthew Persing	0.02 s	Python 2	2015-09-19 20:22:11
3	Joshua Workman	0.02 s	Python 2	2015-09-19 22:57:50
4	Hidden user	0.02 s	Python 2	2015-12-23 21:52:20
5	Kenn Daniel	0.02 s	Python 2	2015-12-26 19:08:44
6	Maksym Bendeberia	0.02 s	Python 2	2016-10-09 21:46:04
7	Stefan Kennedy	0.02 s	Python 2	2016-12-22 19:44:25
8	Collin Rapp	0.02 s	Python 2	2017-02-28 00:57:16
9	Erik Odenman	0.03 s	Python 2	2015-09-20 15:13:04
10	Christofer Ohlsson	0.03 s	Python 2	2015-09-20 22:45:39

#	User	Runtime	Language	Date
1	Wen Li Looi	0.02 s	Python 3	2015-09-19 19:30:00
2	John William O'Rourke	0.02 s	Python 3	2015-10-08 02:08:32
3	Hidden user	0.02 s	Python 3	2015-10-11 21:12:00
4	Joshua Zygmunt	0.02 s	Python 3	2015-10-13 18:35:49
5	Emil Riis Hansen	0.02 s	Python 3	2015-10-20 14:26:07
6	田中恭太	0.02 s	Python 3	2015-10-23 05:07:28
7	Hidden user	0.02 s	Python 3	2015-10-30 03:07:37
8	Hidden user	0.02 s	Python 3	2015-10-30 03:49:40
9	Hidden user	0.02 s	Python 3	2015-10-30 04:34:03
10	Shelby Mahaffie	0.02 s	Python 3	2015-10-30 05:16:22

#	User	Runtime	Language	Date
1	Mehdi Maick	0.03 s	Ruby	2016-09-06 16:30:54
2	Kellen Watt	0.03 s	Ruby	2016-10-29 20:35:37
3	Hidden user	0.04 s	Ruby	2019-12-16 17:50:51
4	Kok Dith	0.05 s	Ruby	2021-08-22 09:34:57
5	Jack Fleming	0.05 s	Ruby	2022-10-26 22:42:47
6	Thomas Feld	0.06 s	Ruby	2023-05-23 14:48:12

#	User	Runtime	Language	Date
1	Nicholas Johnson	0.00 s	Rust	2020-10-11 18:08:46
2	Isak Jägberg	0.00 s	Rust	2020-11-15 14:40:15
3	Dylan Dinh	0.00 s	Rust	2021-03-01 02:15:23
4	Morten Raeburn	0.00 s	Rust	2021-11-18 03:25:48
5	Freek van Keulen	0.00 s	Rust	2021-12-22 19:57:43
6	Bas Dirks	0.00 s	Rust	2022-02-12 09:53:10
7	Magix	0.00 s	Rust	2022-06-12 15:56:59
8	Giang Đào	0.00 s	Rust	2022-12-29 14:44:43
9	Vincent Lagerros	0.00 s	Rust	2025-03-05 18:08:55
10	Pankajkumar Patro	0.00 s	Rust	2025-05-22 21:13:19

#	User	Length	Language	Date
1	Ximun Castoreo	501	C	2020-02-18 13:48:18
2	BS	503	C	2015-10-03 15:45:29
3	arda atci	560	C	2022-04-25 22:11:30
4	Marcus Wanner	578	C	2015-09-19 20:40:39
5	Hidden user	648	C	2019-09-20 18:10:36
6	Axel Delbom	660	C	2019-08-28 22:59:17
7	Eduardo Vicente Petry	666	C	2025-08-12 22:59:08
8	Hidden user	691	C	2008-09-30 21:21:05
9	Anthony Clark	701	C	2017-03-23 19:12:37
10	Thư Hà	729	C	2023-08-20 11:46:24

#	User	Length	Language	Date
1	Mikael Bergström	635	C#	2024-10-18 11:18:59
2	Göran Andersson	707	C#	2022-05-15 14:20:37
3	traxex	741	C#	2024-05-09 18:20:02
4	Robert Low	1167	C#	2016-07-25 22:53:46
5	Bas te Kolste	1293	C#	2015-10-10 11:37:01
6	Peter Due Jensen	1304	C#	2023-08-07 15:03:53
7	Lars Eliassen	1371	C#	2021-11-26 13:52:40
8	Tdyx	1470	C#	2022-08-23 05:14:57
9	Henrik Hallbert	1546	C#	2022-04-23 11:07:53
10	Daouda Camara	1561	C#	2015-09-19 20:06:46

#	User	Length	Language	Date
1	Antonio Molina Lovett	368	C++	2016-08-08 11:03:38
2	Abdul Malik Nurrokhman	377	C++	2016-11-24 10:06:44
3	Herman Karlsson	389	C++	2015-10-27 16:30:58
4	Johan Wind	399	C++	2015-09-21 16:05:27
5	Jesús Pacheco Alonso	402	C++	2024-01-20 23:31:20
6	Dhipta Raditya	407	C++	2016-01-28 10:29:22
7	Inez Zahra Nabila	409	C++	2016-01-29 01:15:17
8	Khawla Hbiech	410	C++	2019-02-18 20:33:24
9	Mustefa Kamil	419	C++	2019-05-05 11:45:11
10	Grae Yeandle	430	C++	2016-11-25 11:27:21

#	User	Length	Language	Date
1	David Cawthon	798	Common Lisp	2020-07-19 03:54:20

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1717	F#	2022-09-04 19:31:56

#	User	Length	Language	Date
1	Kasper Overgaard Mortensen	563	Go	2021-09-30 21:39:23
2	Ian Howell	714	Go	2021-02-05 20:25:30
3	Norbert Voelker	1252	Go	2021-04-27 22:01:30
4	Thomas	1503	Go	2024-01-08 23:53:40
5	Jimmy Nejtron	1812	Go	2022-10-02 21:06:52

#	User	Length	Language	Date
1	Hidden user	582	Haskell	2023-01-18 17:51:58
2	Matthew Johnson	683	Haskell	2017-01-07 23:07:06
3	Jan Hlavacek	1052	Haskell	2017-01-04 11:28:04
4	Steinar Simonnes	1126	Haskell	2024-02-19 10:24:01
5	Jan Hrček	1201	Haskell	2021-03-13 07:57:37
6	Hidden user	1282	Haskell	2015-10-05 11:45:17
7	Chan Ken	1867	Haskell	2021-08-08 10:27:53
8	Hidden user	3572	Haskell	2015-09-22 14:42:51
9	Hidden user	5668	Haskell	2019-09-04 13:19:28

#	User	Length	Language	Date
1	Duncan Page	574	Java	2018-08-27 23:37:21
2	Anton Sandin	601	Java	2022-04-27 19:48:25
3	Rahat Mahbub	658	Java	2017-04-08 01:42:31
4	Måns Magnusson	677	Java	2016-04-28 19:39:25
5	Ive Xu	693	Java	2015-12-23 14:10:39
6	Prakash Sanyasi	696	Java	2018-09-27 17:39:16
7	Thomas King	706	Java	2020-07-30 21:15:37
8	Caeden Whitaker	708	Java	2020-07-27 16:34:57
9	Alvin Yan	712	Java	2017-12-25 11:18:44
10	Kevin Kauffman	729	Java	2022-01-04 02:48:54

#	User	Length	Language	Date
1	Samuel Högfeldt	1440	JavaScript (Node.js)	2022-08-20 12:48:48
2	Chris Wong	1480	JavaScript (Node.js)	2022-01-16 15:29:12
3	Andoko Chandra	1493	JavaScript (Node.js)	2020-10-24 19:46:30
4	Kyle Senebouttarath	1667	JavaScript (Node.js)	2023-03-14 17:37:17

#	User	Length	Language	Date
1	Christian Cederquist	179	JavaScript (SpiderMonkey)	2022-10-21 16:12:39
2	Jimmy Gustafsson	438	JavaScript (SpiderMonkey)	2022-06-22 23:01:29
3	Peter Menyes	541	JavaScript (SpiderMonkey)	2021-09-18 22:03:08
4	Tor Nordqvist	584	JavaScript (SpiderMonkey)	2016-10-31 15:45:10
5	Bjørn Chr. Soltvedt	638	JavaScript (SpiderMonkey)	2016-04-03 16:48:21
6	Peter Kedemo	642	JavaScript (SpiderMonkey)	2015-12-27 11:19:49
7	Hà Minh Ngọc	651	JavaScript (SpiderMonkey)	2016-08-09 05:43:16
8	Brennan Malone	774	JavaScript (SpiderMonkey)	2024-02-02 21:51:40
9	Ricardas Vaitkus	1283	JavaScript (SpiderMonkey)	2016-04-13 23:40:07

#	User	Length	Language	Date
1	Timothy Gaede	1305	Julia	2024-05-11 08:14:14

#	User	Length	Language	Date
1	Emil Wihlander	914	Kotlin	2024-07-22 00:02:14
2	Sam Keyser	1004	Kotlin	2023-03-08 17:58:40
3	Troy Warmboe	1196	Kotlin	2023-04-12 20:59:54
4	Adam Rankin	1262	Kotlin	2023-09-01 20:23:25
5	Jacob Huebner	1565	Kotlin	2022-03-09 18:38:06
6	Witte, Chet	1565	Kotlin	2022-03-13 01:41:47
7	Neil Harmon	1657	Kotlin	2019-06-28 16:43:42

#	User	Length	Language	Date
1	Shehab Ahmed Hatem	746	Lua	2023-11-29 18:29:47

#	User	Length	Language	Date
1	Sebastian Banert	599	OCaml	2024-07-22 01:23:23

#	User	Length	Language	Date
1	Ingemar Ragnemalm	697	Pascal	2018-03-09 17:09:33

#	User	Length	Language	Date
1	Thomas Feld	264	Python 2	2019-09-05 15:17:09
2	Erik Odenman	325	Python 2	2015-09-20 15:13:04
3	Zara Lim	357	Python 2	2018-09-19 08:07:28
4	Andreas Björklund	369	Python 2	2019-09-18 05:38:44
5	Justin Su	376	Python 2	2018-09-20 18:51:45
6	Snild Dolkow	417	Python 2	2015-10-05 21:41:40
7	Nick Wu	429	Python 2	2015-10-05 03:41:47
8	Urban Pettersson	514	Python 2	2016-02-14 16:08:53
9	Jesper Öqvist	547	Python 2	2018-10-25 18:23:44
10	Çağdaş Öztekin	555	Python 2	2017-08-31 12:06:29

#	User	Length	Language	Date
1	Benjamin Z White	182	Python 3	2023-05-21 09:53:33
2	Ahmed Chamseddine	193	Python 3	2024-07-30 10:32:45
3	Farzam Abrishami	194	Python 3	2025-05-06 14:54:16
4	Thibault Raffaillac	234	Python 3	2023-08-14 14:49:28
5	mifacan963	271	Python 3	2022-10-28 00:30:39
6	Wen Li Looi	303	Python 3	2015-09-19 19:30:00
7	Christian Lindeström	303	Python 3	2016-10-04 10:30:18
8	Zac Friggstad	330	Python 3	2020-01-06 22:50:58
9	David Aldenbro	346	Python 3	2025-02-26 22:13:59
10	Tai Tze Kin	348	Python 3	2024-05-02 22:30:59

#	User	Length	Language	Date
1	Thomas Feld	139	Ruby	2023-05-23 15:00:22
2	Hidden user	316	Ruby	2019-12-16 17:50:51
3	Kok Dith	379	Ruby	2021-08-22 09:34:57
4	Kellen Watt	450	Ruby	2016-10-29 20:35:37
5	Mehdi Maick	549	Ruby	2016-09-06 16:30:54
6	Jack Fleming	864	Ruby	2022-10-26 22:42:47

#	User	Length	Language	Date
1	Pankajkumar Patro	837	Rust	2025-05-22 21:16:44
2	Morten Raeburn	1061	Rust	2021-11-18 03:25:48
3	Freek van Keulen	1062	Rust	2021-12-22 19:57:43
4	Dylan Dinh	1157	Rust	2021-03-01 02:15:23
5	Nicholas Johnson	1179	Rust	2020-10-11 18:08:46
6	Bas Dirks	1614	Rust	2022-02-12 09:53:10
7	Isak Jägberg	2161	Rust	2020-11-15 14:40:15
8	Magix	2491	Rust	2022-06-12 15:56:59
9	Giang Đào	4018	Rust	2022-12-29 14:44:43
10	Vincent Lagerros	22151	Rust	2025-03-05 18:08:55

Solution running time distribution