Problem A
Hiding Places — Problem Statistics

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Submissions	2831
Accepted submissions	1790
Submission ratio	63.23%
Authors	1489
Accepted authors	1396
Author ratio	93.75%

#	User	Runtime	Language	Date
1	Bas te Kolste	0.02 s	C#	2015-10-10 13:39:57
2	Robert Low	0.02 s	C#	2016-07-20 23:49:20
3	Khin Nyunt	0.02 s	C#	2017-01-01 06:37:53
4	Göran Andersson	0.02 s	C#	2022-05-12 00:21:26
5	Thomas Norris	0.03 s	C#	2019-11-01 18:10:26
6	Eric Weiss	0.03 s	C#	2022-08-22 20:24:51
7	Emad aldeen Issawi	0.04 s	C#	2023-07-10 11:14:14
8	Mikael Fiala-Lundström	0.05 s	C#	2021-04-23 00:41:59
9	Pontus Lidholm	0.05 s	C#	2023-07-24 23:48:41

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Common Lisp	2019-08-13 08:30:50

#	User	Runtime	Language	Date
1	Alexei Fedotov	0.02 s	Go	2018-08-21 18:05:04
2	Norbert Voelker	0.02 s	Go	2021-04-23 20:32:57
3	Noah Alexander Brubaker	0.08 s	Go	2021-08-12 21:05:20
4	Vilhelm Melkstam	0.08 s	Go	2022-03-30 10:57:11

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2024-01-23 09:10:16
2	Håkon Flatval	0.01 s	Haskell	2018-09-03 21:32:40
3	Frederik Haagensen	0.01 s	Haskell	2019-08-25 18:24:58
4	Hidden user	0.01 s	Haskell	2019-08-29 13:22:21
5	Intrets	0.01 s	Haskell	2019-09-02 15:07:45
6	Jan Hrček	0.01 s	Haskell	2020-11-22 10:06:37
7	Sebastian Banert	0.05 s	Haskell	2024-06-13 20:57:41

#	User	Runtime	Language	Date
1	Jonas Stendahl	0.06 s	Java	2015-10-15 15:37:33
2	Dexter Gramfors	0.06 s	Java	2015-10-15 22:43:15
3	Michael Sullivan	0.06 s	Java	2016-01-01 21:46:28
4	Eskil Jarlskog	0.06 s	Java	2016-04-25 17:28:50
5	William Fiset	0.06 s	Java	2016-11-26 21:10:03
6	Samuel Klingström	0.06 s	Java	2017-08-08 21:42:33
7	Idar Antonsen Syslak	0.06 s	Java	2017-09-06 23:06:39
8	Sam Reinehr	0.06 s	Java	2018-01-30 08:08:15
9	Hidden user	0.06 s	Java	2018-03-07 01:06:25
10	Fu Jin	0.06 s	Java	2018-07-30 14:51:28

#	User	Runtime	Language	Date
1	John	0.11 s	JavaScript (Node.js)	2022-08-04 04:06:36
2	Niamh Limerick	0.44 s	JavaScript (Node.js)	2022-02-10 02:16:07
3	Quinn Flavel	0.45 s	JavaScript (Node.js)	2020-09-30 00:06:02
4	Andoko Chandra	0.45 s	JavaScript (Node.js)	2020-10-18 21:00:19
5	Chris Wong	0.47 s	JavaScript (Node.js)	2021-03-07 20:13:59
6	Khin Nyunt	0.47 s	JavaScript (Node.js)	2021-11-17 14:31:15

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-10-26 00:16:34
2	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-08-03 20:43:21
3	Michael Laszlo	0.02 s	JavaScript (SpiderMonkey)	2016-10-02 05:35:23
4	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2022-06-30 21:20:24
5	Håkan Lindahl	0.03 s	JavaScript (SpiderMonkey)	2022-07-04 19:05:31
6	Peter Menyes	0.04 s	JavaScript (SpiderMonkey)	2021-08-31 22:42:26
7	Zach Tschetter	0.04 s	JavaScript (SpiderMonkey)	2023-06-25 00:01:40
8	Evan Magill	0.04 s	JavaScript (SpiderMonkey)	2024-04-26 02:39:19
9	Christian Cederquist	0.09 s	JavaScript (SpiderMonkey)	2023-01-07 02:06:43

#	User	Runtime	Language	Date
1	Timothy Gaede	0.86 s	Julia	2024-04-03 09:22:40

#	User	Runtime	Language	Date
1	Jacob Huebner	0.14 s	Kotlin	2022-03-30 22:30:28
2	Witte, Chet	0.14 s	Kotlin	2022-04-05 19:37:37
3	Roy Liu	0.20 s	Kotlin	2023-07-08 14:12:38
4	Phường Lên	0.21 s	Kotlin	2019-11-17 22:35:46
5	Hidden user	0.22 s	Kotlin	2019-11-18 03:10:28
6	Adam Rankin	0.22 s	Kotlin	2023-10-28 01:05:06
7	Aniket Kumar	0.22 s	Kotlin	2024-04-24 21:45:50
8	Emil Göransson	0.26 s	Kotlin	2023-07-11 15:49:41
9	Emil Wihlander	0.26 s	Kotlin	2023-07-26 00:34:57
10	Sam Keyser	0.29 s	Kotlin	2023-03-29 17:32:19

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Odin	2025-06-10 21:12:05

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-05-07 09:28:31

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.36 s	Prolog	2019-07-12 22:12:40

#	User	Runtime	Language	Date
1	Roger Bongers	0.03 s	Python 2	2019-03-29 18:54:25
2	Erik Sillén	0.05 s	Python 2	2016-08-17 21:16:04
3	Çağdaş Öztekin	0.05 s	Python 2	2017-09-18 16:44:14
4	Cheng Hang	0.05 s	Python 2	2018-01-24 08:42:21
5	Ciara Godwin	0.05 s	Python 2	2018-03-30 23:28:00
6	Jesper Öqvist	0.05 s	Python 2	2018-10-24 22:24:20
7	Thomas Feld	0.05 s	Python 2	2019-09-05 11:07:50
8	Maj Stenmark	0.05 s	Python 2	2019-10-31 19:57:52
9	Johan Lyts	0.05 s	Python 2	2019-12-20 21:59:33
10	Yanmarshus Bachtiar	0.05 s	Python 2	2020-11-11 12:51:04

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 3	2015-12-06 10:29:15
2	Christian Lindeström	0.02 s	Python 3	2016-12-12 05:39:56
3	Huiyu Huang	0.02 s	Python 3	2017-04-08 01:45:10
4	Yang Li	0.02 s	Python 3	2018-04-16 04:19:44
5	Roger Bongers	0.02 s	Python 3	2019-03-29 18:53:41
6	Jacob Raymond	0.02 s	Python 3	2019-08-19 05:16:56
7	Isaac Lee	0.02 s	Python 3	2019-12-27 21:00:38
8	Tore Norderud	0.03 s	Python 3	2016-11-02 14:14:02
9	Anthony Clays	0.03 s	Python 3	2017-03-04 18:44:21
10	Asad Mahdi	0.03 s	Python 3	2017-03-30 16:19:35

#	User	Runtime	Language	Date
1	Jinwoo Lee	0.24 s	Racket	2025-02-01 04:45:06

#	User	Runtime	Language	Date
1	Kok Dith	0.07 s	Ruby	2021-08-22 06:13:10

#	User	Runtime	Language	Date
1	Magix	0.00 s	Rust	2021-12-29 18:32:42
2	Melker Forsberg	0.00 s	Rust	2023-06-30 02:06:31
3	Nicholas	0.00 s	Rust	2023-07-02 08:57:50
4	Vincent Lagerros	0.00 s	Rust	2025-02-06 13:38:52
5	Bas Dirks	0.01 s	Rust	2022-02-03 18:47:14
6	David Rasch	0.01 s	Rust	2022-10-17 14:39:39

#	User	Length	Language	Date
1	Martin Blom	473	C	2023-12-27 23:56:09
2	Nguyễn Hoàng	977	C	2016-03-07 09:47:05
3	Olav Røthe Bakken	1102	C	2017-09-06 21:53:09
4	Fredrik Karlberg	1303	C	2023-08-05 21:03:11
5	Sambit Palit	1457	C	2020-10-20 22:52:08
6	Hidden user	1574	C	2016-03-05 16:44:31
7	Mikael K Eriksson	1609	C	2021-03-15 10:49:23
8	PhilCampbell	1936	C	2021-02-08 16:53:37
9	Yang Chenglong	2022	C	2019-01-22 10:41:03
10	Hidden user	2231	C	2022-12-12 20:19:35

#	User	Length	Language	Date
1	Göran Andersson	1266	C#	2022-05-12 00:21:26
2	Khin Nyunt	2730	C#	2017-01-01 05:51:14
3	Emad aldeen Issawi	2875	C#	2023-07-10 11:14:14
4	Thomas Norris	3539	C#	2019-11-01 18:10:26
5	Robert Low	3901	C#	2016-07-20 23:49:20
6	Bas te Kolste	4632	C#	2015-10-10 13:39:57
7	Mikael Fiala-Lundström	5057	C#	2021-04-23 00:41:59
8	Pontus Lidholm	5115	C#	2023-07-24 23:48:41
9	Eric Weiss	8823	C#	2022-08-22 20:24:51

#	User	Length	Language	Date
1	Johan Sannemo	813	C++	2015-10-19 10:52:46
2	Antonio Molina Lovett	832	C++	2016-08-07 08:04:02
3	Neal Zane	855	C++	2016-08-01 04:01:00
4	Kiên Nguyễn Tiến Trung	858	C++	2017-03-05 08:28:57
5	Hidden user	921	C++	2024-09-23 17:39:00
6	Modak Shantanu Bharat	940	C++	2020-01-04 03:02:34
7	Leonardo Blanger	943	C++	2021-01-02 18:49:57
8	William Gan	984	C++	2017-03-02 03:25:28
9	Jit Wei Lim	989	C++	2018-04-27 15:01:34
10	Roger Chen	1004	C++	2023-01-07 04:22:25

#	User	Length	Language	Date
1	Hidden user	2115	Common Lisp	2019-08-13 08:30:50

#	User	Length	Language	Date
1	Alexei Fedotov	1502	Go	2018-08-21 18:05:04
2	Norbert Voelker	1981	Go	2021-04-23 20:32:57
3	Vilhelm Melkstam	2012	Go	2022-03-30 10:57:11
4	Noah Alexander Brubaker	4170	Go	2021-08-12 21:05:20

#	User	Length	Language	Date
1	Sebastian Banert	877	Haskell	2024-06-13 20:57:41
2	Jan Hrček	1444	Haskell	2020-11-22 10:06:37
3	Håkon Flatval	1490	Haskell	2018-09-03 21:32:40
4	Steinar Simonnes	2063	Haskell	2024-01-23 09:10:16
5	Frederik Haagensen	2137	Haskell	2019-08-25 18:24:58
6	Intrets	2555	Haskell	2019-09-02 15:07:45
7	Hidden user	4731	Haskell	2019-08-29 13:22:21

#	User	Length	Language	Date
1	Doug Goodman	1282	Java	2017-10-26 17:49:34
2	Ali Pervaiz	1286	Java	2019-04-23 17:44:00
3	Carter Henderson	1331	Java	2022-03-24 16:37:21
4	Darrin Wiley	1394	Java	2016-01-15 08:51:02
5	Eskil Jarlskog	1534	Java	2016-04-25 17:28:50
6	Brennan Cleland	1595	Java	2023-08-20 19:09:45
7	Khin Nyunt	1698	Java	2021-11-17 08:57:57
8	Yao Feng	1805	Java	2018-08-01 11:50:27
9	Crystal Sharpe	1818	Java	2020-01-01 23:31:59
10	Eric Leow Yu Quan	1858	Java	2020-12-05 10:29:56

#	User	Length	Language	Date
1	Quinn Flavel	1446	JavaScript (Node.js)	2020-09-30 00:06:02
2	Andoko Chandra	2370	JavaScript (Node.js)	2020-10-18 21:00:19
3	John	2613	JavaScript (Node.js)	2022-08-04 04:06:36
4	Chris Wong	2676	JavaScript (Node.js)	2021-03-07 20:13:59
5	Khin Nyunt	2893	JavaScript (Node.js)	2021-11-17 14:31:15
6	Niamh Limerick	9469	JavaScript (Node.js)	2022-02-10 02:16:07

#	User	Length	Language	Date
1	Jimmy Gustafsson	830	JavaScript (SpiderMonkey)	2022-06-30 21:20:24
2	Zach Tschetter	949	JavaScript (SpiderMonkey)	2023-06-25 00:01:40
3	Christian Cederquist	1200	JavaScript (SpiderMonkey)	2023-01-07 02:06:43
4	Peter Menyes	1250	JavaScript (SpiderMonkey)	2021-08-31 22:42:26
5	Bjørn Chr. Soltvedt	1306	JavaScript (SpiderMonkey)	2016-08-03 20:43:21
6	Evan Magill	1456	JavaScript (SpiderMonkey)	2024-04-26 02:39:19
7	Michael Laszlo	1638	JavaScript (SpiderMonkey)	2016-10-02 05:35:23
8	Peter Kedemo	1919	JavaScript (SpiderMonkey)	2016-10-26 00:16:34
9	Håkan Lindahl	3147	JavaScript (SpiderMonkey)	2022-07-04 19:05:31

#	User	Length	Language	Date
1	Timothy Gaede	4906	Julia	2024-04-03 09:22:40

#	User	Length	Language	Date
1	Sam Keyser	1570	Kotlin	2023-03-29 17:32:19
2	Witte, Chet	1626	Kotlin	2022-04-05 19:37:37
3	Jacob Huebner	1628	Kotlin	2022-03-30 22:30:28
4	Emil Wihlander	1650	Kotlin	2023-07-26 00:34:57
5	Adam Rankin	1740	Kotlin	2023-10-28 01:05:06
6	Aniket Kumar	1993	Kotlin	2024-04-24 21:45:50
7	Emil Göransson	2049	Kotlin	2023-07-11 15:49:41
8	Einar Kjellback	2281	Kotlin	2020-08-19 14:05:53
9	Hidden user	2283	Kotlin	2019-11-18 03:10:28
10	Roy Liu	2313	Kotlin	2023-07-08 14:12:38

#	User	Length	Language	Date
1	Hidden user	2025	Odin	2025-06-10 21:12:05

#	User	Length	Language	Date
1	Ingemar Ragnemalm	2871	Pascal	2018-05-07 09:28:31

#	User	Length	Language	Date
1	Andriy Zyevakov	1940	Prolog	2019-07-12 22:12:40

#	User	Length	Language	Date
1	Thomas Feld	447	Python 2	2019-09-05 11:07:50
2	Måns Gezelius	747	Python 2	2018-04-24 21:13:23
3	Jesper Öqvist	764	Python 2	2018-10-24 22:24:20
4	Cheng Hang	771	Python 2	2018-01-24 08:42:21
5	Andreas Björklund	778	Python 2	2021-04-05 19:34:48
6	Johan Lyts	868	Python 2	2019-12-21 14:05:31
7	Muzakhir Amanzholov	1017	Python 2	2017-03-05 06:04:12
8	Urban Pettersson	1033	Python 2	2015-10-29 17:49:07
9	Ciara Godwin	1050	Python 2	2018-03-30 23:28:00
10	Çağdaş Öztekin	1051	Python 2	2017-09-18 16:44:14

#	User	Length	Language	Date
1	Simon Hellsten	315	Python 3	2023-07-03 22:44:06
2	Gustav Elmqvist	343	Python 3	2023-03-01 12:24:21
3	Thibault Raffaillac	396	Python 3	2023-08-12 15:51:31
4	Charles Ancheta	459	Python 3	2023-04-09 07:59:24
5	Ahmed Chamseddine	471	Python 3	2024-07-15 13:43:00
6	Marcus Xu	532	Python 3	2021-12-19 15:12:01
7	Jorke de Vlas	532	Python 3	2024-03-07 14:57:52
8	David Aldenbro	553	Python 3	2025-02-14 16:32:49
9	Justin Saye	591	Python 3	2023-01-20 01:06:12
10	Thomas Draper	594	Python 3	2023-06-26 18:50:02

#	User	Length	Language	Date
1	Jinwoo Lee	3215	Racket	2025-02-01 04:45:06

#	User	Length	Language	Date
1	Kok Dith	1050	Ruby	2021-08-22 06:13:10

#	User	Length	Language	Date
1	Vincent Lagerros	1798	Rust	2025-02-06 13:38:52
2	David Rasch	2255	Rust	2022-10-17 14:39:39
3	Bas Dirks	2652	Rust	2022-02-03 18:47:14
4	Nicholas	2996	Rust	2023-07-02 08:57:50
5	Melker Forsberg	3392	Rust	2023-06-30 02:06:31
6	Magix	3971	Rust	2021-12-29 18:32:42

Solution running time distribution