Problem I
Inventing Test Data — Problem Statistics

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Submissions	862
Accepted submissions	280
Submission ratio	32.48%
Authors	216
Accepted authors	178
Author ratio	82.41%

#	User	Runtime	Language	Date
1	Frank Ruskey	0.04 s	C	2016-12-06 00:23:06
2	Ivan Petrov	0.04 s	C	2019-11-11 15:15:13
3	Hidden user	0.04 s	C	2023-01-16 15:36:32

#	User	Runtime	Language	Date
1	Ashley Khoo	0.02 s	C++	2019-09-17 19:08:34
2	Joel Au	0.02 s	C++	2020-05-15 08:43:34
3	Alexander Kravberg	0.02 s	C++	2021-12-24 01:44:47
4	Moses Mayer	0.02 s	C++	2024-12-28 10:14:45
5	Dmitry Lyubshin	0.03 s	C++	2018-09-08 20:16:51
6	Li Da	0.03 s	C++	2018-09-19 07:31:56
7	Michael Zündorf	0.03 s	C++	2019-01-25 14:31:31
8	Matthew Kan	0.03 s	C++	2019-09-15 10:51:54
9	Tia Shi Wei	0.03 s	C++	2019-10-02 14:25:17
10	Pro Duc	0.03 s	C++	2019-12-03 16:24:21

#	User	Runtime	Language	Date
1	Hidden user	0.20 s	Haskell	2025-04-13 06:46:25
2	Udo Stenzel	0.21 s	Haskell	2024-11-07 22:13:08
3	Brent Yorgey	0.30 s	Haskell	2024-10-18 22:12:55

#	User	Runtime	Language	Date
1	Bjørn Dons	0.22 s	Java	2023-02-12 20:23:13
2	Hà Minh Ngọc	0.23 s	Java	2015-09-13 18:12:42
3	Hidden user	0.25 s	Java	2014-10-23 18:10:04
4	Trần Công Duy	0.26 s	Java	2015-11-11 15:26:45
5	Luu Nhat Phi	0.37 s	Java	2015-11-12 06:55:22
6	Nathanael Seen Zhong Qi	0.38 s	Java	2021-08-10 18:19:09
7	Hidden user	0.39 s	Java	2022-04-19 06:58:31
8	Nathanael Seen	0.41 s	Java	2021-10-02 19:32:07
9	Stephen Atwood	0.42 s	Java	2016-10-10 02:47:32
10	Simon Klein	0.43 s	Java	2012-05-17 15:21:28

#	User	Runtime	Language	Date
1	Jacob Huebner	0.47 s	Kotlin	2021-06-03 10:09:23

#	User	Runtime	Language	Date
1	Hidden user	0.33 s	Python 2	2018-12-06 19:10:43
2	Måns Magnusson	0.45 s	Python 2	2018-06-30 00:09:37

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	0.20 s	Python 3	2021-04-16 14:25:42
2	Nhự Nương Họ Vũ	0.27 s	Python 3	2025-03-25 05:14:24
3	Gladwin Yeo	0.30 s	Python 3	2022-07-04 02:52:30
4	Duoduo Zhao	0.32 s	Python 3	2025-08-09 04:23:59
5	Toh Xuan Ning Jeanne	0.33 s	Python 3	2021-08-20 17:46:48
6	Iman Khodadi	0.38 s	Python 3	2024-01-17 15:09:34
7	Javier París	0.38 s	Python 3	2024-10-10 22:47:10
8	Wang Yibin	0.39 s	Python 3	2021-08-20 10:16:23
9	Casper Rysgaard	0.39 s	Python 3	2023-12-07 22:02:25
10	Soeren Hougaard Mulvad	0.40 s	Python 3	2021-08-07 20:23:54

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2024-05-23 17:18:22
2	Daniel Anker Hermansen	0.02 s	Rust	2024-08-06 13:06:09
3	Kevin Putera	0.06 s	Rust	2021-08-10 08:12:11

#	User	Runtime	Language	Date
1	Hidden user	0.19 s	Swift	2024-04-13 18:35:15

#	User	Length	Language	Date
1	Frank Ruskey	1342	C	2016-12-06 00:23:06
2	Hidden user	1737	C	2023-01-16 15:36:32
3	Ivan Petrov	2178	C	2019-11-11 15:15:13

#	User	Length	Language	Date
1	Jamie Lim Jia Sin	768	C++	2020-11-12 10:13:01
2	Yeoh Han Yi	828	C++	2025-04-17 07:55:48
3	Frederick Pek	847	C++	2021-11-20 02:16:13
4	Chenghao Ding	855	C++	2022-10-21 09:16:04
5	Simone Moretti	868	C++	2021-09-30 23:35:29
6	Hidden user	881	C++	2024-04-20 13:10:07
7	ณัฐวุฒิ เจนศักดิ์ดา	904	C++	2024-04-09 16:52:08
8	Cliff McGinnis	926	C++	2021-10-21 17:23:32
9	Jeffrey Lee	953	C++	2016-12-19 07:57:14
10	Noah Hessen Bjerke	960	C++	2025-04-22 21:38:36

#	User	Length	Language	Date
1	Udo Stenzel	2941	Haskell	2024-11-07 22:13:08
2	Brent Yorgey	3983	Haskell	2024-11-18 21:22:56
3	Hidden user	5529	Haskell	2025-04-13 06:46:25

#	User	Length	Language	Date
1	Mitch Price	1586	Java	2016-10-10 04:32:12
2	Frank Ruskey	1839	Java	2018-04-05 02:45:44
3	Hà Minh Ngọc	2446	Java	2015-09-13 18:04:02
4	Luu Nhat Phi	2579	Java	2015-11-12 06:55:22
5	Trần Công Duy	2764	Java	2015-11-11 14:57:54
6	Steven Halim	3289	Java	2021-08-24 16:48:43
7	Simon Klein	3611	Java	2012-05-17 15:21:28
8	Sun Yucheng	3853	Java	2022-07-16 09:03:56
9	Stephen Atwood	4137	Java	2016-10-10 02:47:32
10	Tan Zhang-Hng Ervin	4623	Java	2024-11-26 07:06:29

#	User	Length	Language	Date
1	Jacob Huebner	2509	Kotlin	2021-06-03 10:09:23

#	User	Length	Language	Date
1	Hidden user	605	Python 2	2018-12-06 19:10:43
2	Måns Magnusson	843	Python 2	2018-06-30 00:09:37

#	User	Length	Language	Date
1	Tai Tze Kin	240	Python 3	2025-01-14 21:07:46
2	Michael Goldwasser	299	Python 3	2023-11-23 01:20:51
3	Iman Khodadi	600	Python 3	2024-01-17 15:09:34
4	Oskar Haarklou Veileborg	624	Python 3	2021-04-16 14:25:42
5	Paco Criado	640	Python 3	2024-10-10 21:34:45
6	Soeren Hougaard Mulvad	783	Python 3	2021-08-07 20:23:54
7	Kang Liwei	786	Python 3	2021-08-20 15:04:45
8	Casper Rysgaard	807	Python 3	2023-12-07 22:02:25
9	Nicholas Russell Saerang	944	Python 3	2023-07-22 06:56:28
10	Kok Zhao Jie	1001	Python 3	2021-08-15 11:27:11

#	User	Length	Language	Date
1	Kevin Putera	2653	Rust	2021-08-10 08:12:11
2	Vincent Lagerros	7648	Rust	2024-05-23 17:18:22
3	Daniel Anker Hermansen	27619	Rust	2024-08-06 13:06:09

#	User	Length	Language	Date
1	Hidden user	1427	Swift	2024-04-13 18:35:15

Solution running time distribution