Problem I
Button Bashing — Problem Statistics

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Submissions	6899
Accepted submissions	2198
Submission ratio	31.86%
Authors	1781
Full solves [?]	1555
Full solve Ratio	87.31%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.08 s	Bash	2024-04-17 18:44:34

#	User	Runtime	Language	Date
1	Michael Laszlo	0.00 s	C	2016-10-17 00:53:47
2	Ivan Petrov	0.00 s	C	2019-06-26 10:25:34
3	Bergur Snorrason	0.00 s	C	2020-09-16 10:48:54
4	Xiaochi Wang	0.00 s	C	2022-07-20 06:35:35
5	Mirel Cosulschi	0.00 s	C	2022-12-13 22:02:21

#	User	Runtime	Language	Date
1	Andrzej Krajniak	0.02 s	C#	2016-11-02 19:53:35
2	Martijn den Hoedt	0.02 s	C#	2017-08-31 19:15:23
3	Jonleif Davidsen	0.03 s	C#	2019-11-18 23:26:10
4	Tjibbe van der Veen	0.04 s	C#	2017-08-31 20:05:18
5	Erik van Holland	0.04 s	C#	2017-10-05 18:08:24
6	traxex	0.05 s	C#	2024-05-25 20:46:04
7	Marcus Elg	0.06 s	C#	2021-02-02 18:52:37
8	Guido Passage	0.17 s	C#	2017-08-31 19:44:07

#	User	Runtime	Language	Date
1	Nicolas Schäfer	0.02 s	Go	2024-05-27 15:14:36
2	Michael Laszlo	0.10 s	Go	2016-10-17 00:47:36
3	Norbert Voelker	0.13 s	Go	2021-11-23 01:19:39

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.02 s	Haskell	2025-06-02 13:13:35
2	Zach Tschetter	0.07 s	Haskell	2021-09-25 21:45:29
3	Hidden user	0.10 s	Haskell	2022-08-16 19:26:03

#	User	Runtime	Language	Date
1	Robert Åkemalm	0.07 s	Java	2016-02-04 22:14:01
2	José Vander Meulen	0.07 s	Java	2018-10-14 21:41:03
3	Rocha Azevedo Dani	0.07 s	Java	2018-11-09 17:16:49
4	Ismaila Abdoulahi	0.07 s	Java	2018-11-09 17:41:05
5	Crystal Sharpe	0.07 s	Java	2020-07-11 21:11:57
6	Emanuel Peroni	0.08 s	Java	2018-10-30 11:28:27
7	Guillaume Wery	0.08 s	Java	2018-11-28 10:25:04
8	Castel Christopher	0.09 s	Java	2018-11-03 20:13:59
9	Bunyamin Aslan	0.09 s	Java	2018-11-28 10:29:34
10	Arnaud Poullet	0.09 s	Java	2018-12-20 18:44:26

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.15 s	JavaScript (SpiderMonkey)	2023-07-05 22:42:48
2	Bjørn Chr. Soltvedt	0.20 s	JavaScript (SpiderMonkey)	2025-05-29 01:00:52
3	Michael Laszlo	0.23 s	JavaScript (SpiderMonkey)	2016-10-17 00:40:03

#	User	Runtime	Language	Date
1	Timothy Gaede	0.61 s	Julia	2024-09-26 12:38:13

#	User	Runtime	Language	Date
1	Hidden user	0.52 s	Kotlin	2020-04-05 06:16:28
2	Adam Rankin	0.55 s	Kotlin	2023-09-23 03:37:26
3	Aksel Holbek Sørbye	0.73 s	Kotlin	2025-10-09 14:43:39

#	User	Runtime	Language	Date
1	Alessandro Bruni	0.73 s	OCaml	2021-09-25 10:21:39

#	User	Runtime	Language	Date
1	Bjarki Ágúst Guðmundsson	0.05 s	Python 2	2016-05-03 17:43:43
2	Marcus Johansson	0.05 s	Python 2	2016-08-07 14:30:04
3	Oskar Haarklou Veileborg	0.05 s	Python 2	2018-11-16 09:15:48
4	Victor Zheng	0.06 s	Python 2	2017-06-18 01:38:30
5	Lars Åström	0.06 s	Python 2	2018-06-26 23:41:58
6	Jesper Öqvist	0.06 s	Python 2	2019-08-10 12:32:00
7	Agis Daniels	0.06 s	Python 2	2020-03-08 17:24:03
8	Michael Huang	0.07 s	Python 2	2018-05-14 20:09:21
9	Kevin Tang	0.07 s	Python 2	2019-04-19 01:00:17
10	Hidden user	0.09 s	Python 2	2019-07-05 12:38:50

#	User	Runtime	Language	Date
1	Elyz Katz	0.06 s	Python 3	2025-08-19 16:41:56
2	Hidden user	0.07 s	Python 3	2020-05-25 22:12:05
3	poppyer	0.07 s	Python 3	2022-09-03 04:43:27
4	Hidden user	0.07 s	Python 3	2022-10-04 11:36:57
5	Lukas Kerren	0.07 s	Python 3	2023-01-18 20:06:16
6	Jeroen Op de Beek	0.07 s	Python 3	2024-09-23 02:59:17
7	UTM CS AI	0.07 s	Python 3	2024-10-01 22:03:07
8	Harry Zhang	0.07 s	Python 3	2024-10-31 11:09:58
9	Hidden user	0.07 s	Python 3	2024-11-19 16:48:32
10	JACOB HALL-BURNS	0.07 s	Python 3	2024-11-20 03:33:28

#	User	Runtime	Language	Date
1	Thomas Feld	0.12 s	Ruby	2025-11-06 12:34:12

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-03-20 19:56:50
2	Bas Dirks	0.01 s	Rust	2022-05-08 15:38:11
3	Sindbad Walter	0.02 s	Rust	2023-11-07 03:56:08
4	Egor Kulikov	0.02 s	Rust	2025-02-09 12:15:28
5	Alessandro Bruni	0.06 s	Rust	2021-09-25 10:51:17

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Swift	2023-10-13 15:04:38

#	User	Runtime	Language	Date
1	Ștefan-Iulian Alecu	0.06 s	Visual Basic	2025-11-02 21:22:52

#	User	Length	Language	Date
1	Chenzhang Hu	1560	Bash	2024-04-17 18:44:34

#	User	Length	Language	Date
1	Michael Laszlo	975	C	2016-10-17 00:53:47
2	Ivan Petrov	1112	C	2019-06-26 10:25:34
3	Mirel Cosulschi	1404	C	2022-12-13 22:02:21
4	Xiaochi Wang	1601	C	2022-07-20 06:35:35
5	Bergur Snorrason	1905	C	2020-09-16 10:48:54

#	User	Length	Language	Date
1	traxex	913	C#	2024-05-25 20:46:04
2	Jonleif Davidsen	1621	C#	2019-11-18 23:35:16
3	Martijn den Hoedt	1754	C#	2017-08-31 19:15:23
4	Guido Passage	2639	C#	2017-08-31 19:44:07
5	Marcus Elg	2795	C#	2021-02-02 18:52:37
6	Tjibbe van der Veen	3001	C#	2017-08-31 20:05:18
7	Erik van Holland	3628	C#	2017-10-05 18:08:24
8	Andrzej Krajniak	4721	C#	2016-11-02 19:53:35

#	User	Length	Language	Date
1	Modan Han	539	C++	2017-06-17 19:33:51
2	Asbjørn Lind	541	C++	2024-12-08 21:29:03
3	Kiên Nguyễn Tiến Trung	598	C++	2017-03-04 09:45:07
4	Leonardo Blanger	627	C++	2021-01-02 02:01:28
5	Zane Yu	642	C++	2019-01-03 09:44:19
6	Josenildo Silva	645	C++	2018-05-09 15:25:34
7	Chuck Fernández	650	C++	2016-10-29 00:37:22
8	David Venhoek	678	C++	2016-05-04 11:33:23
9	Jiang Yue	682	C++	2019-01-21 14:00:17
10	Sean Wei	686	C++	2020-04-24 15:43:47

#	User	Length	Language	Date
1	Michael Laszlo	1250	Go	2016-10-17 00:47:36
2	Nicolas Schäfer	1953	Go	2024-05-27 15:14:36
3	Norbert Voelker	1962	Go	2021-11-23 01:19:39

#	User	Length	Language	Date
1	Zach Tschetter	1710	Haskell	2021-09-25 21:45:29
2	Steinar Simonnes	1747	Haskell	2025-06-02 13:13:35
3	Hidden user	2208	Haskell	2022-08-16 19:26:03

#	User	Length	Language	Date
1	Kurtis Van Gent	1037	Java	2016-07-07 18:16:48
2	Doug Goodman	1051	Java	2016-07-08 19:35:12
3	Åke Wettergren	1059	Java	2019-11-28 15:59:10
4	Duncan Page	1062	Java	2019-09-06 03:58:42
5	Luke Chapman	1065	Java	2022-04-10 04:48:17
6	Ge Wai Lok	1098	Java	2019-10-26 06:04:23
7	Geoffrey Ramseyer	1112	Java	2015-10-11 19:30:03
8	Hidden user	1160	Java	2016-09-07 02:47:03
9	Jason Portillo	1187	Java	2016-11-24 19:37:49
10	Anna Tollefson	1198	Java	2022-04-11 17:48:15

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	604	JavaScript (SpiderMonkey)	2023-07-05 22:42:48
2	Michael Laszlo	1112	JavaScript (SpiderMonkey)	2016-10-17 00:40:03
3	Bjørn Chr. Soltvedt	1131	JavaScript (SpiderMonkey)	2025-05-29 01:00:52

#	User	Length	Language	Date
1	Timothy Gaede	1467	Julia	2024-09-26 12:38:13

#	User	Length	Language	Date
1	Adam Rankin	1772	Kotlin	2023-09-23 03:37:26
2	Hidden user	2603	Kotlin	2020-04-05 06:16:28
3	Aksel Holbek Sørbye	28732	Kotlin	2025-10-09 14:43:39

#	User	Length	Language	Date
1	Alessandro Bruni	1115	OCaml	2021-09-25 10:21:39

#	User	Length	Language	Date
1	Sigurjón Freyr Viktorsson	494	Python 2	2016-05-03 17:42:03
2	Michael Huang	498	Python 2	2018-05-14 20:09:21
3	Andreas Björklund	620	Python 2	2020-08-30 08:12:08
4	Lars Åström	634	Python 2	2018-06-26 23:41:58
5	Unnar Freyr Erlendsson	637	Python 2	2016-05-03 17:40:26
6	Victor Zheng	661	Python 2	2017-06-18 01:38:30
7	Jesper Öqvist	706	Python 2	2019-08-10 12:32:00
8	Oskar Haarklou Veileborg	715	Python 2	2018-11-15 21:32:38
9	Urban Pettersson	719	Python 2	2016-02-01 17:51:29
10	Marcus Johansson	728	Python 2	2016-08-07 14:30:04

#	User	Length	Language	Date
1	Ahmed Chamseddine	320	Python 3	2023-11-24 09:10:43
2	Yong Mao	359	Python 3	2025-06-16 17:33:20
3	Luca Wagner	390	Python 3	2024-05-27 17:48:31
4	Riko Jacob	408	Python 3	2024-05-19 00:23:04
5	Harry Zhang	464	Python 3	2024-10-31 11:09:58
6	Sigurjón Freyr Viktorsson	490	Python 3	2016-05-03 17:34:34
7	Troels Bjerre Lund	490	Python 3	2021-09-23 11:54:00
8	Hidden user	523	Python 3	2022-10-04 11:36:57
9	Marcus Johansson	535	Python 3	2021-11-16 22:47:00
10	Wernher To	540	Python 3	2025-01-30 22:41:41

#	User	Length	Language	Date
1	Thomas Feld	145	Ruby	2025-11-06 12:39:50

#	User	Length	Language	Date
1	Bas Dirks	1350	Rust	2022-05-08 15:38:11
2	Alessandro Bruni	1683	Rust	2021-09-25 10:51:17
3	Sindbad Walter	1963	Rust	2023-11-07 03:56:08
4	Vincent Lagerros	5058	Rust	2024-07-10 23:08:22
5	Egor Kulikov	40145	Rust	2025-02-09 12:15:28

#	User	Length	Language	Date
1	Hidden user	866	Swift	2023-10-13 15:04:38

#	User	Length	Language	Date
1	Ștefan-Iulian Alecu	1344	Visual Basic	2025-11-02 21:22:52

Solution running time distribution