Problem A
A Feast For Cats — Problem Statistics

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Submissions	8891
Accepted submissions	2738
Submission ratio	30.80%
Authors	2162
Full solves [?]	1801
Full solve Ratio	83.30%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.01 s	Bash	2023-09-29 15:36:00
2	Thomas Feld	0.06 s	Bash	2023-09-26 19:57:43

#	User	Runtime	Language	Date
1	Duane Currie	0.38 s	C	2019-04-07 04:54:51
2	Eyleifur Bjarkason	0.46 s	C	2019-12-12 02:06:08
3	Javon Rivers	0.50 s	C	2025-12-01 00:33:12
4	Bergur Snorrason	0.54 s	C	2021-02-24 22:39:47
5	Dávid Cseh	0.79 s	C	2018-05-21 21:54:56
6	klimisnotmilk	0.79 s	C	2023-07-21 08:44:27
7	Mirel Cosulschi	0.81 s	C	2022-11-23 19:29:35
8	Wouter van Veelen	2.00 s	C	2015-11-16 03:16:43
9	Israel Terrill	5.77 s	C	2016-09-22 23:05:12

#	User	Runtime	Language	Date
1	Andriy Zyevakov	2.02 s	C#	2024-11-03 08:47:32
2	Juan de Miguel	2.18 s	C#	2017-11-12 00:58:26
3	Greens Parker	2.19 s	C#	2017-06-22 02:03:25
4	Matias Córdova	2.27 s	C#	2025-06-21 18:08:43
5	Rider Montero	2.27 s	C#	2025-06-26 15:55:14
6	Walkyria Audivert Lino	2.28 s	C#	2025-06-27 15:16:48
7	Marwan Ashhuby	2.51 s	C#	2025-08-10 17:18:21
8	Nathan Andrews	3.15 s	C#	2024-11-08 23:53:11
9	Jayant Notani	3.44 s	C#	2020-04-12 03:14:21

#	User	Runtime	Language	Date
1	Breki Palsson	0.00 s	C++	2019-03-09 19:40:22
2	Lee Isaac	0.00 s	C++	2021-11-10 17:12:30
3	Chenzhang Hu	0.00 s	C++	2023-09-29 15:54:29
4	Agis Daniels	0.07 s	C++	2020-03-11 16:27:36
5	Garðar Ingvarsson	0.09 s	C++	2019-03-08 12:12:37
6	Frank Endriss	0.11 s	C++	2020-05-20 16:45:19
7	Alexander Kravberg	0.13 s	C++	2023-12-27 06:55:19
8	Phillo Tunru	0.14 s	C++	2019-06-13 14:44:24
9	Duarte Nóbrega	0.18 s	C++	2019-03-24 01:34:34
10	Eoin Davey	0.19 s	C++	2018-05-28 01:43:44

#	User	Runtime	Language	Date
1	Hidden user	2.25 s	Common Lisp	2019-08-03 05:04:12

#	User	Runtime	Language	Date
1	Norbert Voelker	0.62 s	Go	2021-12-23 23:46:24
2	Iker Lissarrague	5.96 s	Go	2022-05-04 18:43:42

#	User	Runtime	Language	Date
1	Yujin Kim	0.60 s	Haskell	2025-09-03 03:06:30

#	User	Runtime	Language	Date
1	William Fiset	0.28 s	Java	2016-05-30 21:50:16
2	Bjørn Dons	0.32 s	Java	2018-11-12 20:06:41
3	Nicholas Russell Saerang	0.38 s	Java	2023-07-15 13:40:29
4	Carl James Benitez	0.39 s	Java	2023-05-18 18:36:31
5	Crystal Sharpe	0.50 s	Java	2020-12-22 19:06:56
6	Robin Karlsson	0.56 s	Java	2016-02-28 15:19:48
7	Samuel Klingström	0.61 s	Java	2017-06-27 14:30:08
8	Fong Kai Jie	0.66 s	Java	2024-11-10 15:01:16
9	Fredrik Persson	0.67 s	Java	2016-01-19 23:56:39
10	Hy	0.69 s	Java	2018-11-16 15:33:11

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	2.70 s	JavaScript (SpiderMonkey)	2024-02-06 03:45:39
2	Zach Tschetter	3.32 s	JavaScript (SpiderMonkey)	2023-06-21 03:47:51
3	Hà Minh Ngọc	3.93 s	JavaScript (SpiderMonkey)	2016-07-29 08:27:37
4	Christian Pilegaard Cederquist	5.89 s	JavaScript (SpiderMonkey)	2023-02-14 12:01:15

#	User	Runtime	Language	Date
1	Hidden user	1.90 s	Julia	2025-04-20 20:40:45

#	User	Runtime	Language	Date
1	Jacob Huebner	0.53 s	Kotlin	2022-05-04 22:02:32
2	Adam Rankin	1.45 s	Kotlin	2023-09-24 04:52:03
3	Phường Lên	2.42 s	Kotlin	2020-02-14 23:12:52
4	Hidden user	2.76 s	Kotlin	2020-02-11 10:29:27
5	Adam Koprowski	3.76 s	Kotlin	2021-03-04 22:26:34

#	User	Runtime	Language	Date
1	Lee Isaac	0.02 s	Python 2	2022-11-08 20:17:18
2	Nicholas Russell Saerang	0.03 s	Python 2	2022-12-01 09:04:59
3	Agis Daniels	0.68 s	Python 2	2020-07-03 20:48:13
4	Haggai Liu	0.99 s	Python 2	2017-01-05 01:53:13
5	Haggai Liu	0.99 s	Python 2	2017-01-20 08:42:35
6	Robert Burke	1.10 s	Python 2	2017-04-04 02:04:09
7	Jonas Fugldahl	1.30 s	Python 2	2018-03-13 22:55:04
8	Halvor Lund	1.40 s	Python 2	2015-04-25 13:55:36
9	Oskar Haarklou Veileborg	1.61 s	Python 2	2018-11-08 21:35:08
10	Stian Jensen	2.23 s	Python 2	2015-04-25 15:21:51

#	User	Runtime	Language	Date
1	Lee Isaac	0.04 s	Python 3	2022-11-08 19:44:38
2	Nicholas Russell Saerang	0.04 s	Python 3	2022-12-01 09:00:08
3	Thomas Feld	0.04 s	Python 3	2022-12-09 13:58:43
4	William Cook	0.04 s	Python 3	2025-02-22 17:27:44
5	Nikita Sandstrom	0.05 s	Python 3	2022-11-21 00:19:37
6	Noah Chapman	0.05 s	Python 3	2022-11-21 20:32:53
7	Chenzhang Hu	0.06 s	Python 3	2023-10-01 18:25:11
8	Tassilo Radon	0.06 s	Python 3	2024-04-25 16:24:15
9	Dilhan Salgado	0.61 s	Python 3	2025-11-30 07:27:42
10	Rene Nevarez Cabral	0.66 s	Python 3	2025-07-28 17:13:19

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2022-12-09 14:34:15

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.08 s	Rust	2024-05-26 02:33:46
2	Egor Kulikov	0.39 s	Rust	2025-02-04 12:07:49
3	Erik Magnusson	0.54 s	Rust	2024-02-17 21:29:55
4	Eric Pinter	0.57 s	Rust	2020-05-31 06:57:19
5	Leow Li Yong	0.58 s	Rust	2022-04-16 01:30:55
6	Sherman Chann Zhi Shen	0.87 s	Rust	2021-09-16 09:16:29
7	David Rasch	1.70 s	Rust	2021-05-26 17:19:11
8	Daniel Anker Hermansen	2.35 s	Rust	2023-09-20 19:00:08

#	User	Length	Language	Date
1	Chenzhang Hu	43	Bash	2023-09-29 15:45:20
2	Thomas Feld	49	Bash	2023-09-26 19:57:43

#	User	Length	Language	Date
1	klimisnotmilk	1076	C	2023-07-21 08:44:27
2	Javon Rivers	1608	C	2025-12-01 00:33:12
3	Israel Terrill	1633	C	2016-09-22 23:03:08
4	Mirel Cosulschi	1685	C	2022-11-23 19:29:35
5	Dávid Cseh	2220	C	2018-05-21 21:54:56
6	Bergur Snorrason	2245	C	2021-02-24 22:39:47
7	Duane Currie	3129	C	2019-04-07 04:54:51
8	Wouter van Veelen	4774	C	2015-11-16 03:16:43
9	Eyleifur Bjarkason	8703	C	2019-12-12 02:06:08

#	User	Length	Language	Date
1	Marwan Ashhuby	1910	C#	2025-08-10 17:18:21
2	Nathan Andrews	2673	C#	2024-11-08 23:53:11
3	Jayant Notani	2860	C#	2020-04-12 03:14:21
4	Greens Parker	3049	C#	2017-06-22 02:03:25
5	Matias Córdova	3158	C#	2025-06-21 18:08:43
6	Rider Montero	3158	C#	2025-06-26 15:55:14
7	Walkyria Audivert Lino	3158	C#	2025-06-27 15:16:48
8	Juan de Miguel	6161	C#	2017-11-12 00:58:26
9	Andriy Zyevakov	9489	C#	2024-11-03 08:47:32

#	User	Length	Language	Date
1	Lee Isaac	115	C++	2022-11-08 20:31:04
2	Chenzhang Hu	168	C++	2023-09-29 15:54:29
3	Breki Palsson	456	C++	2019-03-09 19:41:04
4	Lim An Jun	658	C++	2023-04-04 10:21:26
5	Ragur Krishnan	707	C++	2018-07-15 19:34:11
6	William Gan	724	C++	2017-02-02 16:44:37
7	Yeung Man Tsung	726	C++	2022-11-18 15:41:34
8	Johan Wind	731	C++	2015-09-21 02:30:46
9	Evan Michael Bailey	734	C++	2023-07-23 02:50:35
10	Thomas Dueholm Hansen	755	C++	2015-04-25 14:14:10

#	User	Length	Language	Date
1	Hidden user	2694	Common Lisp	2019-08-03 05:04:12

#	User	Length	Language	Date
1	Iker Lissarrague	1774	Go	2022-05-04 18:43:42
2	Norbert Voelker	4135	Go	2021-12-23 23:46:24

#	User	Length	Language	Date
1	Yujin Kim	2716	Haskell	2025-09-03 03:06:30

#	User	Length	Language	Date
1	Ethan Maher	1050	Java	2020-10-31 20:39:39
2	Jeroen van den Hoven	1091	Java	2015-09-17 21:39:20
3	Tim Smith	1221	Java	2016-11-08 02:35:37
4	Hidden user	1231	Java	2017-10-13 10:38:26
5	Doug Goodman	1244	Java	2016-07-16 18:21:00
6	Hidden user	1255	Java	2018-03-27 11:03:27
7	Sam Reinehr	1357	Java	2017-10-04 06:14:28
8	Ali Zarrini	1411	Java	2017-11-10 04:00:43
9	Jeremy Archer	1417	Java	2015-05-02 21:42:43
10	Darrin Wiley	1418	Java	2015-10-23 11:15:40

#	User	Length	Language	Date
1	Zach Tschetter	958	JavaScript (SpiderMonkey)	2023-06-21 03:47:51
2	Hà Minh Ngọc	2167	JavaScript (SpiderMonkey)	2016-07-29 08:27:37
3	Christian Pilegaard Cederquist	2635	JavaScript (SpiderMonkey)	2023-02-14 12:01:15
4	Bjørn Chr. Soltvedt	19379	JavaScript (SpiderMonkey)	2024-02-06 03:45:39

#	User	Length	Language	Date
1	Hidden user	691	Julia	2025-04-20 20:40:45

#	User	Length	Language	Date
1	Adam Koprowski	1859	Kotlin	2021-03-04 22:26:34
2	Phường Lên	1976	Kotlin	2020-02-14 23:12:52
3	Jacob Huebner	2015	Kotlin	2022-05-04 22:02:32
4	Adam Rankin	2049	Kotlin	2023-09-24 04:52:03
5	Hidden user	2230	Kotlin	2020-02-11 10:29:27

#	User	Length	Language	Date
1	Lee Isaac	46	Python 2	2022-11-08 20:17:18
2	Nicholas Russell Saerang	49	Python 2	2022-12-01 09:04:59
3	Erik Odenman	533	Python 2	2015-05-14 11:56:49
4	Andreas Björklund	543	Python 2	2019-05-10 19:31:42
5	Oskar Haarklou Veileborg	643	Python 2	2018-11-08 21:33:50
6	Troels Bjerre Lund	667	Python 2	2020-02-14 13:04:54
7	Robert Burke	684	Python 2	2017-04-04 02:04:09
8	Robert Welin-Berger	728	Python 2	2016-06-30 15:25:10
9	Hidden user	760	Python 2	2019-09-25 15:21:55
10	Erik Tjøswold	808	Python 2	2018-02-26 16:20:13

#	User	Length	Language	Date
1	Thomas Feld	45	Python 3	2022-12-09 14:07:22
2	Lee Isaac	46	Python 3	2022-11-08 19:59:42
3	Nicholas Russell Saerang	46	Python 3	2022-12-01 09:03:40
4	Tassilo Radon	47	Python 3	2024-04-26 11:55:49
5	Nikita Sandstrom	75	Python 3	2022-11-22 02:01:39
6	Noah Chapman	99	Python 3	2022-11-21 20:32:53
7	William Cook	148	Python 3	2025-02-22 17:27:44
8	Chenzhang Hu	321	Python 3	2023-10-01 18:14:30
9	Jakob Leander Müller	448	Python 3	2024-01-16 22:08:00
10	Lukas Kerren	448	Python 3	2024-05-02 02:54:17

#	User	Length	Language	Date
1	Thomas Feld	36	Ruby	2022-12-09 14:34:15

#	User	Length	Language	Date
1	Sherman Chann Zhi Shen	1530	Rust	2021-09-16 09:16:29
2	David Rasch	1717	Rust	2021-05-26 17:19:11
3	Eric Pinter	2879	Rust	2020-05-31 06:57:19
4	Leow Li Yong	2897	Rust	2022-04-16 01:30:55
5	Erik Magnusson	5020	Rust	2024-02-17 21:29:55
6	Vincent Lagerros	8211	Rust	2024-05-26 02:18:58
7	Daniel Anker Hermansen	27086	Rust	2023-09-20 19:00:08
8	Egor Kulikov	33397	Rust	2025-02-04 12:07:49

Solution running time distribution