Problem I
Cat vs. Dog — Problem Statistics

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Submissions	2085
Accepted submissions	635
Submission ratio	30.46%
Authors	516
Full solves [?]	370
Full solve Ratio	71.71%

#	User	Runtime	Language	Date
1	Sabit Zahin	0.01 s	C	2015-10-20 19:15:10
2	Nathan Leake	0.07 s	C	2018-02-27 10:04:45
3	Jacob Gummesson Atroshi	0.07 s	C	2019-06-03 13:23:30
4	Ivan Petrov	0.07 s	C	2019-06-28 14:39:57

#	User	Runtime	Language	Date
1	Aravindan Kulandaivelu	0.05 s	C#	2017-03-26 01:11:13
2	Ronnie Sunde	0.06 s	C#	2015-07-01 00:38:15
3	Sami Purmonen	0.22 s	C#	2015-03-10 01:52:26

#	User	Runtime	Language	Date
1	José Vander Meulen	0.13 s	Java	2018-06-10 21:06:53
2	Hidden user	0.18 s	Java	2015-05-02 14:26:13
3	Çağdaş Cirit	0.19 s	Java	2016-02-20 22:30:55
4	Teddy Hartanto	0.20 s	Java	2016-03-14 13:27:22
5	Erik Baalhuis	0.20 s	Java	2016-07-25 04:27:54
6	Hidden user	0.21 s	Java	2016-07-08 19:03:12
7	Amon Al-khatib	0.21 s	Java	2017-03-02 21:08:29
8	Atharva Nagarkar	0.21 s	Java	2019-01-10 07:16:52
9	Magnus Øian	0.22 s	Java	2018-05-14 17:23:34
10	Ray Bai	0.22 s	Java	2021-12-31 17:54:41

#	User	Runtime	Language	Date
1	Phường Lên	0.36 s	Kotlin	2020-05-28 06:10:16
2	Benjamin Ye	0.76 s	Kotlin	2023-02-15 02:08:39

#	User	Runtime	Language	Date
1	Spyridon Gouliarmis	0.09 s	Python 2	2014-10-04 19:37:51
2	Eric Hansander	0.09 s	Python 2	2015-01-18 18:21:54
3	Choo Jia Le	0.13 s	Python 2	2016-03-14 04:00:10
4	Thiago Coelho Vieira	0.13 s	Python 2	2016-06-10 19:08:28
5	Andreas Björklund	0.16 s	Python 2	2019-04-08 19:20:57
6	Hidden user	0.16 s	Python 2	2023-11-27 12:40:36
7	Sydney Tran	0.16 s	Python 2	2024-04-29 02:38:28
8	Thore Husfeldt	0.18 s	Python 2	2019-05-31 15:52:04
9	Maj Stenmark	0.19 s	Python 2	2019-09-27 22:19:53
10	Frej Connolly	0.28 s	Python 2	2013-08-02 09:54:41

#	User	Runtime	Language	Date
1	Sarah Shh	0.11 s	Python 3	2025-04-13 05:05:23
2	Hidden user	0.12 s	Python 3	2025-04-20 01:05:33
3	Hidden user	0.13 s	Python 3	2025-04-10 23:29:41
4	Thomas Bolf	0.13 s	Python 3	2025-04-12 22:48:50
5	Yosuke Mizutani	0.15 s	Python 3	2020-01-22 04:26:37
6	Sami Melhem	0.15 s	Python 3	2025-04-08 18:05:02
7	Eduardo Alvarez Hernandez	0.15 s	Python 3	2025-04-09 23:15:39
8	Yasir Yilmazcoban	0.15 s	Python 3	2025-04-11 20:54:50
9	Tyler Bush	0.16 s	Python 3	2021-11-22 17:45:10
10	Corey Chrudimsky	0.16 s	Python 3	2025-04-13 03:04:31

#	User	Runtime	Language	Date
1	Thomas Feld	0.42 s	Ruby	2023-11-01 09:00:05

#	User	Runtime	Language	Date
1	Mckinley Xie	0.01 s	Rust	2025-04-09 07:20:34
2	Dustin Ward	0.02 s	Rust	2024-01-28 00:49:27
3	Niklas Sandén	0.03 s	Rust	2022-11-03 19:27:09

#	User	Length	Language	Date
1	Nathan Leake	1220	C	2018-02-27 10:04:45
2	Ivan Petrov	1968	C	2019-06-28 14:39:57
3	Jacob Gummesson Atroshi	1982	C	2019-06-03 13:23:30
4	Sabit Zahin	2262	C	2015-10-20 19:15:10

#	User	Length	Language	Date
1	Ronnie Sunde	3694	C#	2015-07-01 00:38:15
2	Sami Purmonen	4014	C#	2015-03-12 21:08:14
3	Aravindan Kulandaivelu	4183	C#	2017-03-26 01:11:13

#	User	Length	Language	Date
1	Yosvany Leyva	879	C++	2015-06-22 20:58:18
2	Yosvany Pizarroza	910	C++	2023-04-10 19:56:59
3	Robert Koprinkov	940	C++	2018-07-02 17:42:42
4	Shiyuan Zhang	943	C++	2016-08-30 09:29:22
5	Kiên Nguyễn Tiến Trung	1005	C++	2017-03-17 06:23:33
6	Si Jun Ke	1022	C++	2016-03-13 02:52:01
7	Ernest van Wijland	1048	C++	2018-07-02 17:06:56
8	Fernando Nathaniel Sutanto	1055	C++	2020-08-26 12:49:09
9	Abeer Qureshi	1072	C++	2021-11-23 18:25:13
10	Willson Wijaya	1096	C++	2019-02-28 07:36:39

#	User	Length	Language	Date
1	Corentin Simon	1864	Java	2016-04-16 14:54:51
2	Doug Goodman	1953	Java	2022-05-17 18:06:42
3	Sravankumar Veerapu	1966	Java	2018-01-30 01:25:37
4	Jannik Olbrich	1999	Java	2020-01-04 13:17:52
5	Reza Kharazmi	2278	Java	2022-07-04 08:59:02
6	Robin Ramquist	2339	Java	2018-09-23 21:20:35
7	Hidden user	2524	Java	2015-05-02 14:26:13
8	David Nowzari	2599	Java	2016-07-01 22:16:28
9	Theodora Mourad	2618	Java	2017-07-03 16:45:24
10	Andy Florian Irakoze	2642	Java	2021-11-23 00:28:33

#	User	Length	Language	Date
1	Benjamin Ye	380	Kotlin	2023-02-15 07:34:42
2	Phường Lên	2262	Kotlin	2020-05-28 06:10:16

#	User	Length	Language	Date
1	Sydney Tran	985	Python 2	2024-04-29 02:38:28
2	Hidden user	987	Python 2	2023-11-27 12:40:36
3	Thore Husfeldt	1259	Python 2	2019-05-31 15:52:04
4	Andreas Björklund	1272	Python 2	2019-04-08 19:20:57
5	Måns Magnusson	1522	Python 2	2019-08-31 22:29:07
6	Marcus Johansson	1639	Python 2	2013-09-28 10:13:56
7	Oskar Larsson	1764	Python 2	2019-05-31 17:32:43
8	Maj Stenmark	1955	Python 2	2019-08-31 22:40:05
9	Torstein Strømme	3242	Python 2	2017-04-06 17:09:52
10	Hidden user	3304	Python 2	2013-09-22 19:13:57

#	User	Length	Language	Date
1	Nicholas Russell Saerang	985	Python 3	2023-07-17 07:06:34
2	gnaneswari lolugu	985	Python 3	2024-04-08 17:30:56
3	Jin Seok Oh	1064	Python 3	2025-04-10 22:40:25
4	Hidden user	1083	Python 3	2025-04-13 05:34:29
5	Sarah Shh	1125	Python 3	2025-04-13 05:12:05
6	Corey Chrudimsky	1183	Python 3	2025-04-13 03:04:31
7	Sami Melhem	1216	Python 3	2025-04-08 18:05:02
8	Eduardo Alvarez Hernandez	1227	Python 3	2025-04-10 18:22:04
9	Thore Husfeldt	1247	Python 3	2019-05-31 12:14:18
10	Kiran Vengurlekar	1291	Python 3	2025-04-12 23:25:52

#	User	Length	Language	Date
1	Thomas Feld	351	Ruby	2023-11-01 09:05:40

#	User	Length	Language	Date
1	Mckinley Xie	3525	Rust	2025-04-09 07:20:34
2	Dustin Ward	9239	Rust	2024-01-28 00:49:27
3	Niklas Sandén	22738	Rust	2022-11-03 19:27:09

Solution running time distribution