Problem A
Zebras and Ocelots — Problem Statistics

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Submissions	6188
Accepted submissions	1899
Submission ratio	30.69%
Authors	1862
Accepted authors	1569
Author ratio	84.26%

#	User	Runtime	Language	Date
1	Jeremy Eastham	0.01 s	Bash	2025-03-02 21:06:53
2	Andrew Li	0.01 s	Bash	2025-03-02 21:50:13
3	Chenzhang Hu	0.06 s	Bash	2023-09-19 17:12:09
4	Thomas Feld	0.06 s	Bash	2023-09-27 10:41:09

#	User	Runtime	Language	Date
1	Erik Sillén	0.02 s	C#	2018-06-01 14:33:49
2	Gustav Kalander	0.02 s	C#	2018-07-30 19:19:03
3	Alexander Yoshida	0.02 s	C#	2019-11-06 23:18:11
4	Ivan Shetko	0.02 s	C#	2021-07-27 16:54:57
5	triven gounden	0.02 s	C#	2022-09-15 13:42:28
6	Hidden user	0.02 s	C#	2022-09-20 13:43:33
7	Peter Moorhouse	0.02 s	C#	2023-03-06 01:13:42
8	Nabeel Mirza	0.04 s	C#	2023-09-11 07:38:30
9	James Khalil	0.04 s	C#	2024-01-22 18:36:06
10	Nathan Andrews	0.05 s	C#	2024-11-01 21:19:24

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Common Lisp	2019-06-12 07:19:51

#	User	Runtime	Language	Date
1	Morten Clausen	0.04 s	F#	2020-08-02 22:32:38
2	Jacob Harris Cryer Kragh	0.04 s	F#	2023-03-21 17:40:49

#	User	Runtime	Language	Date
1	Ade Hendra	0.00 s	Go	2023-11-12 12:34:10
2	Mukhlas Rosyadi	0.00 s	Go	2023-11-13 09:12:54
3	Pandhu Hutomo Aditya	0.00 s	Go	2023-11-15 05:41:25
4	Husain Satan	0.00 s	Go	2023-11-16 15:45:40
5	WalkerKnapp	0.00 s	Go	2024-03-26 22:28:52
6	Norbert Voelker	0.02 s	Go	2021-11-16 19:25:06
7	Ashleigh Bunkofske	0.08 s	Go	2017-10-29 06:18:04

#	User	Runtime	Language	Date
1	Rudi Svartveit	0.00 s	Haskell	2018-09-12 17:30:15
2	Brent Yorgey	0.00 s	Haskell	2018-11-04 22:46:38
3	Ryan Chew	0.00 s	Haskell	2019-02-07 11:06:08
4	Hidden user	0.00 s	Haskell	2022-11-25 22:24:12
5	Aiden Lara	0.00 s	Haskell	2024-05-04 06:50:18
6	Steinar Simonnes	0.00 s	Haskell	2025-03-07 08:21:45
7	Intrets	0.01 s	Haskell	2019-04-06 00:19:12
8	Christian Leipe	0.01 s	Haskell	2019-08-17 14:53:00
9	Stian	0.01 s	Haskell	2020-03-10 14:08:46

#	User	Runtime	Language	Date
1	Sriniketh Vangaru	0.04 s	Java	2024-08-27 22:14:00
2	Ranjith M	0.04 s	Java	2024-09-07 02:57:07
3	Nick Wu	0.05 s	Java	2017-10-28 18:25:12
4	Alex Zabashta	0.05 s	Java	2017-10-28 18:31:40
5	Terrence Park	0.05 s	Java	2017-11-01 05:44:49
6	Finn Lidbetter	0.05 s	Java	2017-11-02 02:17:06
7	Issam Baskati	0.05 s	Java	2017-11-07 19:28:14
8	Olav Røthe Bakken	0.05 s	Java	2017-11-17 14:34:07
9	Richard Peng	0.05 s	Java	2017-12-09 17:52:51
10	Hidden user	0.05 s	Java	2018-06-14 22:55:49

#	User	Runtime	Language	Date
1	Peter Kedemo	0.42 s	JavaScript (Node.js)	2019-12-30 18:20:58

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2018-05-13 17:20:14
2	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-02-12 10:52:59

#	User	Runtime	Language	Date
1	Danny Robinson	0.56 s	Julia	2023-09-06 21:53:41
2	Timothy Gaede	0.56 s	Julia	2024-04-21 04:12:08

#	User	Runtime	Language	Date
1	Jacob Huebner	0.11 s	Kotlin	2022-04-01 19:01:34
2	Jahid Hasan Imon	0.12 s	Kotlin	2020-08-27 00:04:07
3	Hidden user	0.16 s	Kotlin	2017-12-04 00:17:41
4	Ditlef Alexander Diseth	0.16 s	Kotlin	2020-03-10 11:42:28
5	Filip Belik	0.17 s	Kotlin	2019-11-01 05:10:14
6	Phường Lên	0.18 s	Kotlin	2019-10-25 01:46:04
7	Laksa Pedas	0.19 s	Kotlin	2023-11-13 07:24:48
8	Adam Rankin	0.20 s	Kotlin	2023-10-21 19:24:10

#	User	Runtime	Language	Date
1	Matthew Lutze	0.00 s	OCaml	2020-08-04 19:15:43

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2019-06-17 17:57:17

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.02 s	Python 2	2017-10-28 22:16:05
2	Joseph Kendall-Morwick	0.02 s	Python 2	2017-10-28 22:43:54
3	Christiaan Greening	0.02 s	Python 2	2017-10-29 16:03:44
4	Hussam Samir Yousif	0.02 s	Python 2	2018-02-16 15:45:25
5	Giuseppe Rizzi	0.02 s	Python 2	2018-05-02 04:02:11
6	udprogrammingteam Team	0.03 s	Python 2	2017-11-01 02:07:59
7	Pu Chen	0.03 s	Python 2	2017-11-04 00:10:21
8	Yupeng Gu	0.03 s	Python 2	2018-04-20 06:48:25
9	Frederik Højholt	0.03 s	Python 2	2018-07-15 18:52:07
10	Matthew Reff	0.03 s	Python 2	2018-08-27 06:23:30

#	User	Runtime	Language	Date
1	Rational	0.02 s	Python 3	2017-10-28 19:54:54
2	Samuel Niu	0.02 s	Python 3	2017-11-01 06:03:06
3	Erik Tjøswold	0.02 s	Python 3	2017-11-13 16:17:44
4	Yngve Hellås	0.02 s	Python 3	2017-11-14 13:49:56
5	Ciara Godwin	0.02 s	Python 3	2017-11-28 02:09:55
6	James Hamm	0.02 s	Python 3	2017-12-13 11:32:29
7	Arnav Sastry	0.02 s	Python 3	2018-01-28 18:32:55
8	Zac Friggstad	0.02 s	Python 3	2018-03-30 16:51:58
9	Jón Steinn Elíasson	0.02 s	Python 3	2018-05-02 13:49:59
10	Seth Hamilton	0.02 s	Python 3	2018-05-11 02:12:22

#	User	Runtime	Language	Date
1	Miorel Palii	0.03 s	Ruby	2017-12-27 21:17:38
2	Hidden user	0.04 s	Ruby	2019-11-27 18:14:06
3	Thomas Feld	0.06 s	Ruby	2022-12-13 07:45:54
4	Gustav Elmqvist	0.06 s	Ruby	2023-02-18 03:19:16

#	User	Runtime	Language	Date
1	Pahlevi Fikri Auliya	0.00 s	Rust	2020-10-28 11:28:16
2	Samuel Kyletoft	0.00 s	Rust	2021-06-05 22:48:00
3	Eric Pinter	0.00 s	Rust	2021-06-27 18:46:28
4	Bas Dirks	0.00 s	Rust	2022-01-13 17:12:46
5	Artur Khuziakhmetov	0.00 s	Rust	2022-08-10 09:42:09
6	Daniel Anker Hermansen	0.00 s	Rust	2023-05-21 01:07:37
7	Ishtiaq Hussain Naqi	0.00 s	Rust	2023-09-16 14:43:51
8	Jonathan Choi	0.00 s	Rust	2024-01-24 08:18:58
9	Mckinley Xie	0.00 s	Rust	2025-02-21 22:56:32
10	Vincent Lagerros	0.00 s	Rust	2025-06-10 12:20:52

#	User	Runtime	Language	Date
1	Alex Yang	0.00 s	Zig	2024-09-28 00:45:13

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-02-03 13:30:43
2	Thomas Feld	13	Bash	2023-09-27 10:41:32
3	Jeremy Eastham	30	Bash	2025-03-02 22:47:13
4	Andrew Li	73	Bash	2025-03-02 22:11:31

#	User	Length	Language	Date
1	Gabriel Lavier	219	C	2025-04-06 10:03:58
2	Hidden user	235	C	2020-01-18 01:35:42
3	Aron H	239	C	2024-03-07 16:52:51
4	Vaibhav Vaidish	265	C	2023-09-15 19:32:41
5	Hidden user	266	C	2017-12-04 00:24:55
6	Firaol Bulo	266	C	2023-02-16 17:58:03
7	April Clark	266	C	2023-02-24 03:19:15
8	Saif Ur Rehman	266	C	2023-06-06 20:48:52
9	Minhajur Rahman	267	C	2021-07-17 17:51:27
10	Said Selbes	267	C	2023-01-27 05:13:00

#	User	Length	Language	Date
1	Gustav Kalander	400	C#	2018-07-30 19:19:03
2	James Khalil	452	C#	2024-01-22 18:36:06
3	Nabeel Mirza	598	C#	2023-09-11 07:38:30
4	Alexander Yoshida	634	C#	2019-11-06 23:18:11
5	Ivan Shetko	879	C#	2021-07-27 16:54:57
6	Erik Sillén	1072	C#	2018-06-01 14:33:49
7	Peter Moorhouse	1144	C#	2023-03-06 01:13:42
8	Nathan Andrews	1336	C#	2024-11-01 21:19:24
9	Hidden user	2052	C#	2022-09-20 13:43:33
10	triven gounden	2155	C#	2022-09-15 13:42:28

#	User	Length	Language	Date
1	Tyler Fernando	111	C++	2022-11-02 08:33:25
2	Jesper Bech Christensen	114	C++	2022-09-14 11:57:13
3	Frans Meulenbroeks	135	C++	2024-10-13 22:42:22
4	Ohieku Eneji Peacemaker	201	C++	2025-04-20 12:48:18
5	Hao Du	202	C++	2020-02-27 01:58:43
6	Rafael Kristoforus Yanto	205	C++	2025-01-03 11:21:47
7	Johan Wind	208	C++	2018-05-08 21:50:53
8	Franz Louis Cesista	213	C++	2018-09-22 07:32:02
9	Yeung Man Tsung	214	C++	2022-11-18 17:05:15
10	Ammar Zaghloul	214	C++	2024-01-27 01:38:08

#	User	Length	Language	Date
1	Hidden user	175	Common Lisp	2019-06-12 07:19:51

#	User	Length	Language	Date
1	Morten Clausen	260	F#	2020-08-02 22:32:38
2	Jacob Harris Cryer Kragh	403	F#	2023-03-21 17:40:49

#	User	Length	Language	Date
1	WalkerKnapp	238	Go	2024-03-26 22:28:52
2	Mukhlas Rosyadi	334	Go	2023-11-13 09:12:54
3	Norbert Voelker	483	Go	2021-11-16 19:25:06
4	Ashleigh Bunkofske	576	Go	2017-10-29 06:18:04
5	Husain Satan	587	Go	2023-11-16 15:45:40
6	Pandhu Hutomo Aditya	1365	Go	2023-11-15 05:41:25
7	Ade Hendra	1553	Go	2023-11-12 12:34:10

#	User	Length	Language	Date
1	Ryan Chew	197	Haskell	2019-02-07 11:06:08
2	Intrets	277	Haskell	2019-04-06 00:19:12
3	Brent Yorgey	279	Haskell	2018-11-04 22:46:38
4	Rudi Svartveit	310	Haskell	2018-09-12 17:56:55
5	Stian	364	Haskell	2020-03-10 14:08:46
6	Christian Leipe	365	Haskell	2019-08-19 08:27:26
7	Aiden Lara	403	Haskell	2024-05-04 06:50:18
8	Steinar Simonnes	453	Haskell	2025-03-07 08:21:45
9	Hidden user	540	Haskell	2022-11-25 22:24:12

#	User	Length	Language	Date
1	Dimitrios Papanicolaou	287	Java	2020-10-23 15:17:33
2	Jiru Xu	306	Java	2017-11-02 05:55:56
3	Michael Liu	309	Java	2018-05-25 18:30:20
4	Mitch Price	315	Java	2017-11-06 20:02:03
5	Joseph Durie	335	Java	2019-04-20 06:07:26
6	Doug Goodman	337	Java	2017-10-29 15:39:13
7	Nam Phan Thành	348	Java	2018-09-27 04:37:12
8	William Downey	356	Java	2023-01-27 05:23:30
9	Albert Wang	356	Java	2019-11-14 22:08:56
10	Joshua Navarro	365	Java	2021-05-24 16:57:40

#	User	Length	Language	Date
1	Peter Kedemo	331	JavaScript (Node.js)	2019-12-30 18:20:58

#	User	Length	Language	Date
1	Christian Cederquist	73	JavaScript (SpiderMonkey)	2023-02-12 10:57:38
2	Bjørn Chr. Soltvedt	17737	JavaScript (SpiderMonkey)	2018-05-13 17:20:14

#	User	Length	Language	Date
1	Danny Robinson	58	Julia	2023-09-06 21:53:41
2	Timothy Gaede	377	Julia	2024-04-21 04:12:08

#	User	Length	Language	Date
1	Hidden user	193	Kotlin	2017-12-04 00:17:41
2	Jacob Huebner	228	Kotlin	2022-04-01 19:01:34
3	Filip Belik	253	Kotlin	2019-11-01 05:10:14
4	Adam Rankin	290	Kotlin	2023-10-21 19:24:10
5	Laksa Pedas	305	Kotlin	2023-11-13 07:24:48
6	Phường Lên	381	Kotlin	2019-10-25 01:46:04
7	Jahid Hasan Imon	1513	Kotlin	2020-08-27 00:04:07
8	Ditlef Alexander Diseth	2399	Kotlin	2020-03-10 11:42:28

#	User	Length	Language	Date
1	Matthew Lutze	675	OCaml	2020-08-04 19:15:43

#	User	Length	Language	Date
1	Andriy Zyevakov	613	Prolog	2019-06-17 17:57:17

#	User	Length	Language	Date
1	Lars Åström	96	Python 2	2018-11-19 09:31:15
2	Thomas Feld	110	Python 2	2020-05-13 08:16:20
3	Johan Lyts	112	Python 2	2020-03-05 14:24:42
4	Giuseppe Rizzi	119	Python 2	2018-05-02 04:02:11
5	Yupeng Gu	128	Python 2	2018-04-20 06:48:25
6	Zhao Ming	138	Python 2	2019-07-17 09:55:03
7	Lim Hong Hui Eugene	146	Python 2	2019-10-10 10:53:31
8	Guan Yang Ze	156	Python 2	2019-10-01 09:38:08
9	Paul Devlin	164	Python 2	2019-02-21 20:42:09
10	udprogrammingteam Team	166	Python 2	2017-11-01 02:07:59

#	User	Length	Language	Date
1	Alex Zhang	44	Python 3	2025-03-04 05:47:48
2	Alan Zhou	45	Python 3	2025-03-04 04:13:17
3	Peter Stauder	46	Python 3	2023-01-13 21:29:56
4	Mckinley Xie	46	Python 3	2025-03-03 21:54:22
5	Nhat Bui	48	Python 3	2025-03-03 07:58:16
6	Błażej Dariusz Roszkowski	53	Python 3	2022-10-24 16:33:06
7	Srikar Yalam	54	Python 3	2025-03-04 04:00:06
8	Jack Vacek	56	Python 3	2025-03-03 23:17:50
9	Sander Oppen	61	Python 3	2024-10-19 00:13:02
10	Lee Isaac	62	Python 3	2022-11-09 11:02:20

#	User	Length	Language	Date
1	Thomas Feld	31	Ruby	2023-01-31 13:02:34
2	Gustav Elmqvist	34	Ruby	2023-03-05 22:45:24
3	Miorel Palii	79	Ruby	2017-12-27 21:17:38
4	Hidden user	102	Ruby	2019-11-27 18:14:06

#	User	Length	Language	Date
1	Mckinley Xie	264	Rust	2025-03-03 00:31:55
2	Vincent Lagerros	276	Rust	2025-06-10 12:22:05
3	Samuel Kyletoft	286	Rust	2021-06-05 22:48:00
4	Bas Dirks	366	Rust	2022-01-13 17:12:46
5	Ishtiaq Hussain Naqi	378	Rust	2023-09-16 18:45:30
6	Jonathan Choi	536	Rust	2024-01-24 08:18:58
7	Artur Khuziakhmetov	581	Rust	2022-08-10 09:42:09
8	Eric Pinter	975	Rust	2021-06-27 18:46:28
9	Pahlevi Fikri Auliya	1627	Rust	2020-10-28 11:28:16
10	Daniel Anker Hermansen	19492	Rust	2023-05-21 01:07:37

#	User	Length	Language	Date
1	Alex Yang	1079	Zig	2024-09-28 00:45:13

Solution running time distribution