Problem I
Un-bear-able Zoo — Problem Statistics

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Submissions	5964
Accepted submissions	3136
Submission ratio	52.58%
Authors	2983
Accepted authors	2761
Author ratio	92.56%

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-11-19 01:15:25

#	User	Runtime	Language	Date
1	Duelene Olson	0.02 s	C#	2016-09-21 04:27:58
2	Klas af Geijerstam	0.02 s	C#	2016-12-07 23:20:56
3	Jens Mossig	0.02 s	C#	2017-02-20 20:36:53
4	Hidden user	0.02 s	C#	2017-04-18 10:47:58
5	Rasmus Brants	0.02 s	C#	2017-04-22 16:43:14
6	Þorsteinn Þorvaldsson	0.02 s	C#	2017-05-30 03:31:43
7	Nils Lindstedt	0.02 s	C#	2017-09-15 14:46:44
8	Faisal Rahman	0.02 s	C#	2017-10-23 18:42:25
9	Bruno Capuano	0.02 s	C#	2017-11-16 22:29:21
10	Ludwig Hedeby	0.02 s	C#	2017-11-25 19:40:58

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.06 s	F#	2022-10-12 15:47:03

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2021-04-24 13:45:03
2	My Name	0.07 s	Go	2018-11-07 16:05:17
3	Hidden user	0.08 s	Go	2016-08-04 12:43:50
4	Viktor Holmér	0.08 s	Go	2017-09-30 01:44:35
5	Hidden user	0.08 s	Go	2017-12-06 01:44:48
6	Krzysztof Gibuła	0.08 s	Go	2021-03-20 23:38:02

#	User	Runtime	Language	Date
1	Patrik Lilja	0.00 s	Haskell	2016-07-25 18:59:03
2	Johan Meier	0.00 s	Haskell	2017-01-17 17:20:21
3	Matthew Johnson	0.00 s	Haskell	2017-02-18 07:12:12
4	Nathaniel Amour	0.00 s	Haskell	2017-08-26 23:51:28
5	Brent Yorgey	0.00 s	Haskell	2017-10-12 15:34:18
6	Morten Lohne	0.00 s	Haskell	2017-11-05 00:45:39
7	Hidden user	0.00 s	Haskell	2019-03-14 14:38:22
8	Steinar Simonnes	0.00 s	Haskell	2024-02-04 17:31:08
9	Rudy Matela	0.00 s	Haskell	2024-05-05 12:27:06
10	Martin Jackson	0.01 s	Haskell	2017-04-08 22:02:55

#	User	Runtime	Language	Date
1	Julius Griebel	0.05 s	Java	2024-11-03 20:24:16
2	Martijn Muijsers	0.06 s	Java	2016-10-09 20:25:13
3	Michel Langeveld	0.06 s	Java	2016-10-31 21:43:24
4	Finn Lidbetter	0.06 s	Java	2016-12-19 18:39:47
5	Liam Keliher	0.06 s	Java	2018-01-04 06:08:49
6	Isaac Lee	0.06 s	Java	2018-02-16 01:41:10
7	Nigel Quinn	0.06 s	Java	2018-03-09 22:48:51
8	Micah Stairs	0.07 s	Java	2016-07-09 05:55:14
9	Nick Wu	0.07 s	Java	2016-08-06 00:54:47
10	Omar Brome	0.07 s	Java	2016-08-15 22:57:48

#	User	Runtime	Language	Date
1	Carl Sundvall	0.05 s	JavaScript (Node.js)	2018-11-13 08:38:57
2	Hidden user	0.05 s	JavaScript (Node.js)	2023-11-17 04:07:38
3	Sander Hellesø	0.06 s	JavaScript (Node.js)	2019-04-18 21:36:15
4	Chris Wong	0.42 s	JavaScript (Node.js)	2021-02-15 18:14:49
5	Andoko Chandra	0.43 s	JavaScript (Node.js)	2020-10-11 12:25:26
6	John	0.43 s	JavaScript (Node.js)	2021-03-10 11:38:27

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-07-09 16:43:48
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-07-25 16:59:35
3	J M	0.01 s	JavaScript (SpiderMonkey)	2016-11-09 01:34:18
4	Paul Leung	0.01 s	JavaScript (SpiderMonkey)	2017-02-24 13:51:24
5	Alan Delaney	0.01 s	JavaScript (SpiderMonkey)	2017-04-10 04:14:43
6	Peter Menyes	0.01 s	JavaScript (SpiderMonkey)	2017-08-25 19:15:58
7	Jerry Zhu	0.01 s	JavaScript (SpiderMonkey)	2017-10-06 23:05:11
8	Luk Ming Kit	0.01 s	JavaScript (SpiderMonkey)	2017-11-05 15:28:22
9	Nicklas Utgaard	0.01 s	JavaScript (SpiderMonkey)	2017-12-31 16:25:03
10	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-04-19 18:30:38

#	User	Runtime	Language	Date
1	Timothy Gaede	0.52 s	Julia	2024-04-01 09:29:24

#	User	Runtime	Language	Date
1	Phường Lên	0.18 s	Kotlin	2020-01-19 20:32:41
2	Mike Wilkes	0.19 s	Kotlin	2018-02-03 04:17:44
3	Emil Wihlander	0.22 s	Kotlin	2023-07-27 14:28:03
4	Love Engman	0.23 s	Kotlin	2017-10-17 20:53:55
5	Hidden user	0.23 s	Kotlin	2017-11-27 20:49:16
6	Dayan Ruben Gonzalez	0.23 s	Kotlin	2020-10-03 20:18:43
7	Gaurav Tyagi	0.24 s	Kotlin	2018-08-10 00:21:14
8	Christian Komusiewicz	0.24 s	Kotlin	2020-12-28 21:13:58
9	Sergey Jakobsen	0.24 s	Kotlin	2021-06-06 23:51:01
10	Adam Rankin	0.24 s	Kotlin	2023-04-30 18:20:26

#	User	Runtime	Language	Date
1	Sander de Haan	0.00 s	Lua	2025-04-09 14:58:09

#	User	Runtime	Language	Date
1	KoonWen Lee	0.00 s	OCaml	2022-01-04 15:05:38

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2017-09-11 10:13:24

#	User	Runtime	Language	Date
1	Emil Riis Hansen	0.01 s	PHP	2018-10-30 10:00:38
2	Renate	0.01 s	PHP	2021-07-17 23:01:31

#	User	Runtime	Language	Date
1	Hadi Qovaizi	0.03 s	Prolog	2016-12-29 03:34:10
2	Hakan Kjellerstrand	0.12 s	Prolog	2023-02-15 11:00:23

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.03 s	Python 2	2016-07-07 07:46:57
2	Marko Lazic	0.03 s	Python 2	2016-08-23 22:32:39
3	Bredyn McCombs	0.03 s	Python 2	2016-08-26 04:34:23
4	Bernhard Kartefla	0.03 s	Python 2	2016-09-14 17:57:07
5	Marcus Johansson	0.03 s	Python 2	2016-09-17 17:39:02
6	Maksym Bendeberia	0.03 s	Python 2	2016-09-19 12:24:42
7	Erik Sillén	0.03 s	Python 2	2016-09-19 22:36:35
8	Yongzheng Huang	0.03 s	Python 2	2016-09-19 22:48:45
9	Brett Gustafson	0.03 s	Python 2	2016-09-21 07:32:32
10	William Johns	0.03 s	Python 2	2016-09-28 19:56:32

#	User	Runtime	Language	Date
1	Wayne	0.02 s	Python 3	2016-07-10 15:02:50
2	Hidden user	0.02 s	Python 3	2016-08-20 17:23:02
3	Christian Lindeström	0.02 s	Python 3	2016-09-18 21:24:41
4	Ilya Antipin	0.02 s	Python 3	2016-09-19 18:22:29
5	Alex Weil	0.02 s	Python 3	2016-09-19 20:21:13
6	Brooks Becton	0.02 s	Python 3	2016-09-20 02:11:18
7	Óðinn Eyjólfsson	0.02 s	Python 3	2016-09-21 17:30:49
8	Evan Higgins	0.02 s	Python 3	2016-09-21 23:15:29
9	Desireddyguru Vishnuvardhanreddy	0.02 s	Python 3	2016-09-22 15:11:30
10	Nathan Collins	0.02 s	Python 3	2016-09-24 02:23:50

#	User	Runtime	Language	Date
1	Jinwoo Lee	0.13 s	Racket	2025-02-02 02:03:24

#	User	Runtime	Language	Date
1	Erik Rydbert	0.03 s	Ruby	2016-09-06 08:00:41
2	Chris Weston	0.03 s	Ruby	2016-09-28 03:24:34
3	Hidden user	0.03 s	Ruby	2017-05-08 08:41:23
4	Clifford Owino	0.03 s	Ruby	2017-05-22 12:51:45
5	Alghi Fariansyah	0.05 s	Ruby	2020-10-29 18:38:54
6	Kok Dith	0.05 s	Ruby	2021-08-19 06:22:54
7	Thomas Feld	0.06 s	Ruby	2022-11-17 10:37:57

#	User	Length	Language	Date
1	Danny Robinson	137	Bash	2023-11-19 01:15:25

#	User	Length	Language	Date
1	Sami Al Chalati	1242	C	2024-05-10 19:21:03
2	Hidden user	1596	C	2025-01-20 21:26:32
3	Donikon Fajar	1600	C	2018-11-15 11:14:16
4	Rudi Svartveit	1916	C	2019-01-05 17:01:37
5	Fred Arnold	1932	C	2020-03-16 02:25:55
6	Patrik Forsslund	1989	C	2020-10-23 23:40:15
7	Johan Öhlin	2056	C	2017-09-11 13:51:19
8	Lee Geng Yu	2065	C	2017-12-21 11:08:22
9	Sorakris Chaladlamsakul	2353	C	2017-05-27 16:12:52
10	Sambit Palit	2480	C	2020-10-16 04:05:58

#	User	Length	Language	Date
1	Deci Bel	710	C#	2025-06-21 12:21:20
2	Kunwei Zhang	737	C#	2018-02-17 10:08:14
3	Esty Crow	761	C#	2025-02-21 18:48:38
4	Michael Damsgaard	805	C#	2024-11-29 17:25:32
5	Yuwono Bangun Nagoro	822	C#	2018-01-09 22:49:08
6	Göran Andersson	908	C#	2022-05-15 22:34:17
7	Anthony Ye	913	C#	2025-02-28 20:29:31
8	Hidden user	960	C#	2017-04-18 10:47:58
9	Eric Bäckhage	1055	C#	2019-02-09 22:27:43
10	Eric Weiss	1083	C#	2022-07-29 23:05:52

#	User	Length	Language	Date
1	Mohammad Sadeghi	385	C++	2019-07-14 18:29:30
2	Markus Mathiasen	404	C++	2021-10-21 16:17:09
3	Hidden user	456	C++	2020-04-03 23:37:46
4	Daniel Emeka-Ilozor	458	C++	2025-03-04 21:26:55
5	Hyunjun Lee	489	C++	2022-11-12 08:08:08
6	William Gan	501	C++	2017-08-13 04:44:07
7	Yeung Man Tsung	508	C++	2023-03-20 18:27:20
8	Sunny Nguyen	514	C++	2018-12-31 08:50:00
9	Zane Yu	516	C++	2018-12-23 09:06:45
10	Bryan Wong Wei Heng	521	C++	2020-03-25 06:57:56

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	596	F#	2022-10-12 15:47:03

#	User	Length	Language	Date
1	Krzysztof Gibuła	670	Go	2021-03-20 23:38:02
2	Viktor Holmér	917	Go	2017-09-30 01:44:35
3	Hidden user	1035	Go	2017-12-06 01:44:48
4	Norbert Voelker	1078	Go	2021-04-24 13:45:03
5	Hidden user	1078	Go	2016-08-04 13:08:04
6	My Name	1158	Go	2018-11-07 16:05:17

#	User	Length	Language	Date
1	Patrik Lilja	494	Haskell	2016-07-25 18:59:03
2	Lieven Marchand	509	Haskell	2017-09-12 17:29:38
3	Matthew Johnson	572	Haskell	2017-02-18 07:12:12
4	Sebastian Banert	585	Haskell	2024-07-02 21:17:34
5	Marijonas Kaunas	643	Haskell	2020-04-27 18:46:53
6	Jan Hrček	658	Haskell	2020-11-08 10:00:13
7	Hidden user	663	Haskell	2019-08-23 12:17:27
8	Håkon Flatval	679	Haskell	2018-08-16 17:02:12
9	Øyvind Almli	687	Haskell	2021-10-09 20:09:10
10	Aurélien Pepin	691	Haskell	2019-08-16 14:57:49

#	User	Length	Language	Date
1	Doug Goodman	611	Java	2018-06-07 19:01:25
2	Tim Smith	672	Java	2017-01-27 05:52:47
3	Sam Huynh	674	Java	2021-10-20 05:34:08
4	Eric Leow Yu Quan	682	Java	2020-12-25 16:40:31
5	Yao Jie Thng	709	Java	2020-08-09 13:37:17
6	Emilie Hyslop	715	Java	2020-10-01 06:30:00
7	Austin Bush	726	Java	2018-09-27 21:04:23
8	Sean Widjaja	730	Java	2021-02-04 07:49:11
9	Darrin Wiley	748	Java	2016-10-22 08:54:09
10	Max Bagatini Alves	754	Java	2024-01-17 23:37:07

#	User	Length	Language	Date
1	Chris Wong	926	JavaScript (Node.js)	2021-02-15 18:14:49
2	Sander Hellesø	969	JavaScript (Node.js)	2019-04-18 21:36:15
3	Hidden user	973	JavaScript (Node.js)	2024-09-17 19:16:13
4	Andoko Chandra	1039	JavaScript (Node.js)	2020-10-11 12:25:26
5	John	1282	JavaScript (Node.js)	2021-03-10 11:38:27
6	Carl Sundvall	1695	JavaScript (Node.js)	2018-11-13 08:38:57

#	User	Length	Language	Date
1	Jimmy Gustafsson	255	JavaScript (SpiderMonkey)	2024-07-12 21:51:13
2	Zach Tschetter	386	JavaScript (SpiderMonkey)	2023-04-19 18:30:38
3	J M	447	JavaScript (SpiderMonkey)	2016-11-09 01:34:18
4	Peter Kedemo	459	JavaScript (SpiderMonkey)	2016-07-09 16:43:48
5	Jerry Zhu	495	JavaScript (SpiderMonkey)	2017-10-06 23:05:11
6	Christian Cederquist	503	JavaScript (SpiderMonkey)	2023-01-15 17:14:52
7	Peter Menyes	520	JavaScript (SpiderMonkey)	2017-08-25 19:15:58
8	Bjørn Chr. Soltvedt	529	JavaScript (SpiderMonkey)	2016-07-25 16:59:35
9	Paul Leung	589	JavaScript (SpiderMonkey)	2017-02-24 13:51:24
10	Evan Magill	624	JavaScript (SpiderMonkey)	2024-11-23 03:12:48

#	User	Length	Language	Date
1	Timothy Gaede	830	Julia	2024-04-01 09:29:24

#	User	Length	Language	Date
1	Troy Warmboe	438	Kotlin	2020-02-11 20:59:15
2	Hidden user	495	Kotlin	2017-11-27 20:49:16
3	Emil Wihlander	507	Kotlin	2023-07-27 14:28:03
4	Sergey Jakobsen	514	Kotlin	2021-06-06 23:55:26
5	Christian Komusiewicz	571	Kotlin	2020-12-28 21:13:58
6	Dayan Ruben Gonzalez	577	Kotlin	2020-10-03 20:18:43
7	Einar Kjellback	601	Kotlin	2019-12-13 19:21:32
8	Love Engman	668	Kotlin	2017-10-17 20:53:55
9	Gaurav Tyagi	802	Kotlin	2018-08-10 00:21:14
10	Zaw Myat	909	Kotlin	2023-12-18 16:24:01

#	User	Length	Language	Date
1	Sander de Haan	688	Lua	2025-04-09 14:58:09

#	User	Length	Language	Date
1	KoonWen Lee	904	OCaml	2022-01-04 15:05:38

#	User	Length	Language	Date
1	Ingemar Ragnemalm	11861	Pascal	2017-09-11 10:13:24

#	User	Length	Language	Date
1	Renate	600	PHP	2021-07-17 23:01:31
2	Emil Riis Hansen	888	PHP	2018-10-30 10:00:38

#	User	Length	Language	Date
1	Hakan Kjellerstrand	465	Prolog	2023-02-15 11:00:23
2	Hadi Qovaizi	8177	Prolog	2016-12-29 03:34:10

#	User	Length	Language	Date
1	Thomas Feld	221	Python 2	2019-08-21 16:07:44
2	Haggai Liu	243	Python 2	2017-01-19 18:54:19
3	Dmitry Lyubshin	277	Python 2	2018-03-14 22:37:06
4	Martin Wan	279	Python 2	2017-07-27 07:53:46
5	Johan Wind	281	Python 2	2018-03-20 17:31:30
6	Alfredo Beaumont	290	Python 2	2019-03-14 00:38:56
7	Jesper Öqvist	296	Python 2	2018-10-20 14:27:27
8	Trevor Masters	303	Python 2	2017-02-02 19:23:16
9	Matt Bonsall	311	Python 2	2017-09-14 01:54:33
10	Hidden user	313	Python 2	2018-12-08 04:20:54

#	User	Length	Language	Date
1	Clement Oh	162	Python 3	2023-07-12 15:18:42
2	Benjamin Z White	172	Python 3	2023-05-20 17:57:02
3	Charles Ancheta	208	Python 3	2023-03-16 06:39:52
4	a_b__c	210	Python 3	2021-03-21 18:38:47
5	Jonas Thorsell	229	Python 3	2025-01-30 08:55:43
6	Tai Tze Kin	238	Python 3	2024-05-02 20:11:37
7	Oliver Ruste Jahren	244	Python 3	2023-07-05 21:26:16
8	Oskar Haarklou Veileborg	246	Python 3	2018-11-15 14:43:06
9	Lucas Patten	246	Python 3	2025-05-06 20:27:54
10	Alcohol Based Non Toxic	249	Python 3	2019-10-31 08:24:20

#	User	Length	Language	Date
1	Jinwoo Lee	684	Racket	2025-02-02 02:03:24

#	User	Length	Language	Date
1	Thomas Feld	119	Ruby	2022-11-17 10:37:57
2	Kok Dith	270	Ruby	2021-08-19 06:22:54
3	Clifford Owino	301	Ruby	2017-05-22 12:51:45
4	Hidden user	382	Ruby	2017-05-08 08:41:23
5	Alghi Fariansyah	422	Ruby	2020-10-29 18:38:54
6	Chris Weston	440	Ruby	2016-09-28 03:24:34
7	Erik Rydbert	878	Ruby	2016-09-06 08:00:41

#	User	Length	Language	Date
1	Vincent Lagerros	749	Rust	2025-02-06 13:44:59
2	David Zacek	752	Rust	2021-06-14 23:56:57
3	Pankajkumar Patro	894	Rust	2024-12-17 21:34:20
4	Bas Dirks	961	Rust	2021-12-28 17:30:26
5	Dan Yang	1047	Rust	2020-04-26 01:12:45
6	Alexandros Panagiotidis	1146	Rust	2020-05-05 23:31:50
7	Isak Jägberg	1179	Rust	2019-08-24 11:39:15
8	Kalle Vigren	1311	Rust	2024-07-04 22:27:22
9	Hidden user	1379	Rust	2024-07-29 20:22:44
10	Mileta Mitrovic	1483	Rust	2022-01-11 18:15:32

Solution running time distribution