Problem A
Missing Gnomes — Problem Statistics

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Submissions	4301
Accepted submissions	1547
Submission ratio	35.97%
Authors	1317
Full solves [?]	1128
Full solve Ratio	85.65%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.11 s	Bash	2024-04-16 16:29:29

#	User	Runtime	Language	Date
1	Ehsan Shoja	0.01 s	C	2018-06-09 04:53:24
2	Eyleifur Bjarkason	0.01 s	C	2019-12-15 22:48:33
3	Mirel Cosulschi	0.01 s	C	2025-04-11 09:23:05
4	Steven Jiang	0.02 s	C	2018-03-24 18:31:26
5	Michael Malkiewicz	0.02 s	C	2018-03-24 21:24:11
6	Ivan Petrov	0.02 s	C	2018-03-27 14:30:19
7	Laurence Liu	0.02 s	C	2018-04-09 01:09:30
8	Hidden user	0.02 s	C	2019-09-14 00:35:21
9	vance	0.02 s	C	2020-03-09 15:52:28
10	Mikael K Eriksson	0.02 s	C	2021-02-06 17:58:35

#	User	Runtime	Language	Date
1	Henrik Hallbert	0.08 s	C#	2019-09-25 22:54:57
2	Nils Lenart	0.49 s	C#	2020-03-23 19:08:28
3	Leander Nedergaard Jensen	0.54 s	C#	2020-08-29 08:57:39
4	Hidden user	0.91 s	C#	2020-07-07 18:19:13
5	Andriy Zyevakov	1.20 s	C#	2019-08-13 20:29:24

#	User	Runtime	Language	Date
1	Robert Cummings	0.01 s	C++	2018-03-24 18:07:30
2	Anton Tsypko	0.01 s	C++	2018-03-24 18:09:04
3	Wesley Leung	0.01 s	C++	2018-03-24 18:10:18
4	Henry Xia	0.01 s	C++	2018-03-24 18:12:30
5	Tobi Adewoye	0.01 s	C++	2018-03-24 18:13:12
6	Vishnu Narayan	0.01 s	C++	2018-03-24 18:13:49
7	Hua Fan Cai	0.01 s	C++	2018-03-24 18:16:38
8	Shane Rhoads	0.01 s	C++	2018-03-24 18:24:55
9	Radu Nesiu	0.01 s	C++	2018-03-24 18:58:13
10	Viraj Maddur	0.01 s	C++	2018-03-25 05:46:25

#	User	Runtime	Language	Date
1	Hidden user	0.27 s	Common Lisp	2019-06-19 02:24:58

#	User	Runtime	Language	Date
1	Norbert Voelker	0.31 s	Go	2021-11-25 20:40:25
2	Santiago Andaluz Ruiz	1.07 s	Go	2018-03-25 21:23:18

#	User	Runtime	Language	Date
1	Øyvind Almli	0.07 s	Haskell	2022-03-05 17:41:07
2	Isaac Arvestad	0.08 s	Haskell	2018-11-23 22:41:02
3	Brent Yorgey	0.36 s	Haskell	2018-04-08 04:30:39
4	Hidden user	0.36 s	Haskell	2019-11-03 14:27:01
5	Mark Lekkerkerker	0.37 s	Haskell	2020-07-07 16:35:07
6	Mason Barnhill	0.40 s	Haskell	2023-07-15 00:58:52
7	Aurélien Pepin	0.41 s	Haskell	2019-08-22 15:14:37

#	User	Runtime	Language	Date
1	Bjørn Dons	0.16 s	Java	2019-03-08 18:18:50
2	Sameep Dahal	0.17 s	Java	2022-10-01 11:30:47
3	Øyvind Almli	0.19 s	Java	2019-01-18 17:11:47
4	Sam Reinehr	0.21 s	Java	2018-08-29 23:23:05
5	Charley Sheaffer	0.21 s	Java	2018-10-20 01:38:02
6	Nathan Gossett	0.22 s	Java	2018-03-24 19:14:02
7	Arup Ratan Guha	0.22 s	Java	2018-03-25 12:29:52
8	Øyvind Johannessen	0.22 s	Java	2019-01-18 15:32:38
9	Hidden user	0.22 s	Java	2021-08-30 13:32:09
10	Liam Keliher	0.23 s	Java	2019-12-15 21:07:49

#	User	Runtime	Language	Date
1	Peter Kedemo	0.59 s	JavaScript (Node.js)	2020-01-11 14:22:34

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.07 s	JavaScript (SpiderMonkey)	2023-06-19 16:42:12
2	Bjørn Chr. Soltvedt	0.18 s	JavaScript (SpiderMonkey)	2018-04-02 23:33:52

#	User	Runtime	Language	Date
1	Timothy Gaede	1.46 s	Julia	2024-09-23 07:01:53

#	User	Runtime	Language	Date
1	Benjamin Laurence Erickson	0.36 s	Kotlin	2018-06-26 20:10:55
2	Nicholas Johnson	0.44 s	Kotlin	2021-07-22 20:24:54
3	Adam Rankin	0.80 s	Kotlin	2023-09-03 23:14:11
4	Hidden user	0.94 s	Kotlin	2019-12-20 15:25:29

#	User	Runtime	Language	Date
1	Artemis Ngoh	0.14 s	OCaml	2024-04-12 20:04:23

#	User	Runtime	Language	Date
1	Giahuy Pham	0.02 s	Pascal	2019-10-12 08:38:50

#	User	Runtime	Language	Date
1	Alex Wice	0.08 s	Python 2	2018-03-24 18:32:52
2	Michael Bolot	0.08 s	Python 2	2018-03-24 20:32:51
3	Måns Magnusson	0.08 s	Python 2	2018-04-12 09:49:23
4	Gustav Krantz	0.09 s	Python 2	2018-08-25 14:38:25
5	Hidden user	0.09 s	Python 2	2018-12-11 17:03:13
6	Aarav Singh	0.10 s	Python 2	2018-03-28 16:33:20
7	Andreas Björklund	0.10 s	Python 2	2019-10-10 08:45:26
8	Bertrand Evertz	0.10 s	Python 2	2021-07-20 18:06:30
9	Victor Zheng	0.11 s	Python 2	2018-03-25 00:42:36
10	Asger Hautop Drewsen	0.12 s	Python 2	2018-09-22 13:24:37

#	User	Runtime	Language	Date
1	Jiaming Kong	0.07 s	Python 3	2025-08-08 03:36:17
2	Petr	0.07 s	Python 3	2025-08-08 19:07:55
3	crapcode	0.08 s	Python 3	2022-10-01 13:03:26
4	Christoffer Sommerlund	0.08 s	Python 3	2022-10-04 16:29:09
5	Ryan Tan	0.08 s	Python 3	2024-09-17 11:03:01
6	Josh Thoo Jen Sen	0.08 s	Python 3	2024-12-09 14:32:36
7	Ram Basnet	0.09 s	Python 3	2019-01-03 23:30:22
8	Andrew McGehee	0.09 s	Python 3	2019-02-28 01:52:38
9	Connor Johnston	0.09 s	Python 3	2019-02-28 02:00:45
10	Auburn Ford	0.09 s	Python 3	2019-03-01 17:07:26

#	User	Runtime	Language	Date
1	Thomas Feld	0.31 s	Ruby	2023-05-23 14:31:46

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-09-01 01:52:43
2	Pahlevi Fikri Auliya	0.03 s	Rust	2020-11-05 03:17:31
3	Niklas Sandén	0.03 s	Rust	2022-10-01 11:38:02
4	Kristoffer Søholm	0.10 s	Rust	2022-10-06 21:29:25
5	Daniel Anker Hermansen	0.13 s	Rust	2024-10-27 00:03:18

#	User	Length	Language	Date
1	Chenzhang Hu	1552	Bash	2024-04-16 16:29:29

#	User	Length	Language	Date
1	Sebastian Miles	225	C	2022-10-01 14:23:27
2	Mirel Cosulschi	469	C	2025-04-11 09:17:26
3	Mikael K Eriksson	498	C	2021-02-06 17:58:35
4	Sherman Chann Zhi Shen	513	C	2021-05-31 07:45:30
5	Laurence Liu	637	C	2018-04-09 01:09:30
6	Ivan Petrov	645	C	2018-03-27 14:30:19
7	Hidden user	671	C	2019-09-14 00:35:21
8	Steven Jiang	779	C	2018-03-24 18:31:26
9	vance	795	C	2020-03-09 15:52:28
10	Ehsan Shoja	995	C	2018-06-09 04:53:24

#	User	Length	Language	Date
1	Hidden user	1189	C#	2020-07-07 18:19:13
2	Henrik Hallbert	2175	C#	2019-09-25 22:54:57
3	Leander Nedergaard Jensen	2515	C#	2020-08-29 08:57:39
4	Nils Lenart	4843	C#	2020-03-23 19:08:28
5	Andriy Zyevakov	9016	C#	2019-08-13 20:29:24

#	User	Length	Language	Date
1	Frans Meulenbroeks	246	C++	2025-02-13 18:21:22
2	Jiahao Fu	337	C++	2025-12-20 20:28:24
3	Jiacheng Liu	408	C++	2018-03-24 18:19:26
4	Ivan D. Pupovac	410	C++	2019-02-25 20:23:55
5	Eimhin McDonald	413	C++	2018-03-26 01:23:00
6	Grae Yeandle	414	C++	2018-03-31 17:33:46
7	a_b__c	419	C++	2021-03-03 13:24:25
8	Anh Le	420	C++	2022-10-08 09:15:54
9	Yilian Dhirayuvati Chen	429	C++	2020-10-26 06:17:39
10	Gert Qin Hansen	435	C++	2022-10-07 22:34:22

#	User	Length	Language	Date
1	Hidden user	1320	Common Lisp	2019-06-19 02:01:27

#	User	Length	Language	Date
1	Santiago Andaluz Ruiz	788	Go	2018-03-25 21:23:18
2	Norbert Voelker	973	Go	2021-11-25 20:40:25

#	User	Length	Language	Date
1	Øyvind Almli	510	Haskell	2022-03-05 17:37:56
2	Mason Barnhill	528	Haskell	2023-07-15 00:58:52
3	Aurélien Pepin	650	Haskell	2019-08-22 15:14:37
4	Isaac Arvestad	655	Haskell	2018-11-23 22:42:08
5	Brent Yorgey	726	Haskell	2018-04-08 04:30:39
6	Mark Lekkerkerker	1049	Haskell	2020-07-07 16:35:07
7	Hidden user	10652	Haskell	2019-11-03 14:27:01

#	User	Length	Language	Date
1	Lutz Steinhilber	672	Java	2018-04-12 14:56:27
2	Rezwan Arefin	687	Java	2021-07-20 19:41:26
3	Sharon Barak	707	Java	2018-03-24 18:11:02
4	Nathan Mytelka	764	Java	2018-03-24 20:20:04
5	Billy Quiroga	804	Java	2018-03-27 18:33:24
6	Weiyu Wang	811	Java	2018-03-24 18:25:26
7	Benjamin Reidys	819	Java	2020-02-08 19:12:36
8	Shawn Hatchwell	831	Java	2018-03-24 18:31:59
9	Miorel Palii	833	Java	2018-03-24 20:43:58
10	Doug Goodman	850	Java	2019-07-08 18:54:33

#	User	Length	Language	Date
1	Peter Kedemo	659	JavaScript (Node.js)	2020-01-11 14:22:34

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	432	JavaScript (SpiderMonkey)	2018-04-02 23:33:52
2	Christian Pilegaard Cederquist	498	JavaScript (SpiderMonkey)	2023-06-19 16:42:12

#	User	Length	Language	Date
1	Timothy Gaede	1309	Julia	2024-09-23 07:01:53

#	User	Length	Language	Date
1	Nicholas Johnson	522	Kotlin	2021-07-22 20:27:14
2	Benjamin Laurence Erickson	747	Kotlin	2018-06-26 18:22:02
3	Adam Rankin	786	Kotlin	2023-09-03 23:14:11
4	Hidden user	919	Kotlin	2019-12-20 15:25:29

#	User	Length	Language	Date
1	Artemis Ngoh	1434	OCaml	2024-04-12 20:04:23

#	User	Length	Language	Date
1	Giahuy Pham	490	Pascal	2019-10-12 08:38:50

#	User	Length	Language	Date
1	Eoin Davey	248	Python 2	2018-10-03 23:37:20
2	Thomas Feld	262	Python 2	2019-10-30 13:33:58
3	Jesper Öqvist	305	Python 2	2018-10-27 13:10:40
4	Anton Lyxell	326	Python 2	2019-12-23 04:20:57
5	Johan Lyts	384	Python 2	2019-12-11 15:18:12
6	Måns Magnusson	411	Python 2	2018-04-12 09:49:23
7	Victor Zheng	414	Python 2	2018-03-25 00:42:36
8	Andreas Björklund	424	Python 2	2019-10-10 08:45:26
9	Gustav Krantz	464	Python 2	2018-08-25 14:38:25
10	Asger Hautop Drewsen	477	Python 2	2018-09-22 13:24:37

#	User	Length	Language	Date
1	Ben Zydney	135	Python 3	2024-04-30 02:38:05
2	Chris Kopp	138	Python 3	2024-04-30 21:20:55
3	Hidden user	180	Python 3	2018-08-16 16:56:52
4	Ahmed Chamseddine	203	Python 3	2023-11-21 23:34:05
5	Hidden user	205	Python 3	2019-02-14 11:47:27
6	Hidden user	211	Python 3	2019-02-11 19:45:10
7	Jason Cannon	266	Python 3	2019-12-12 21:09:21
8	Thomas Draper	270	Python 3	2022-07-06 08:35:57
9	Hrant Hovhannisyan	271	Python 3	2025-12-10 04:35:03
10	Alexandre Charland	280	Python 3	2025-01-10 16:22:31

#	User	Length	Language	Date
1	Thomas Feld	107	Ruby	2023-05-23 14:36:58

#	User	Length	Language	Date
1	Kristoffer Søholm	973	Rust	2022-10-06 21:29:25
2	Pahlevi Fikri Auliya	2315	Rust	2020-11-05 03:18:46
3	Daniel Anker Hermansen	12375	Rust	2024-10-27 00:03:18
4	Vincent Lagerros	15730	Rust	2024-09-01 01:52:43
5	Niklas Sandén	18328	Rust	2022-10-01 11:38:02

Solution running time distribution