Problem I
Debugging — Problem Statistics

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Submissions	2242
Accepted submissions	569
Submission ratio	25.38%
Authors	560
Full solves [?]	411
Full solve Ratio	73.39%

#	User	Runtime	Language	Date
1	Jesper Öqvist	0.00 s	C	2018-04-10 10:15:37
2	Ivan Petrov	0.04 s	C	2017-11-21 07:02:36
3	Stefan Kennedy	0.05 s	C	2016-10-25 12:01:40
4	Bergur Snorrason	0.09 s	C	2019-01-28 20:09:12
5	Pim Heeman	0.09 s	C	2020-04-02 07:26:47

#	User	Runtime	Language	Date
1	Bas te Kolste	0.04 s	C#	2015-12-01 16:13:07

#	User	Runtime	Language	Date
1	Mike Nguyen	0.12 s	Go	2024-05-18 20:55:38

#	User	Runtime	Language	Date
1	Nick Wu	0.07 s	Java	2015-11-29 09:33:43
2	George Mărcuș	0.07 s	Java	2015-11-29 12:42:29
3	Игорь Коваленко	0.07 s	Java	2015-11-29 21:13:29
4	Atul Anand Sinha	0.09 s	Java	2017-02-21 21:12:33
5	Olav Røthe Bakken	0.09 s	Java	2017-10-23 20:44:38
6	Bjørn Dons	0.10 s	Java	2019-09-25 18:37:40
7	Fajrin Aziz	0.11 s	Java	2025-10-27 17:16:15
8	Måns Magnusson	0.12 s	Java	2016-10-17 18:32:56
9	Martin Jakobsson	0.12 s	Java	2017-10-06 21:12:00
10	Mehdi Maick	0.12 s	Java	2018-12-06 14:43:04

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.65 s	JavaScript (SpiderMonkey)	2023-11-22 08:42:04

#	User	Runtime	Language	Date
1	Lars Åström	0.05 s	Python 2	2018-04-06 17:01:58
2	Maj Stenmark	0.05 s	Python 2	2018-04-08 18:19:28
3	Andreas Björklund	0.21 s	Python 2	2019-05-23 14:39:12
4	David Nilsson	0.21 s	Python 2	2019-06-08 08:43:04
5	Torstein Strømme	0.23 s	Python 2	2017-09-27 16:59:47
6	Mees de Vries	0.31 s	Python 2	2019-06-03 12:40:45
7	Yong Kiat Tay	0.32 s	Python 2	2016-09-22 07:51:27
8	Cian Ruane	0.33 s	Python 2	2018-03-30 14:46:19
9	Oskar Haarklou Veileborg	0.33 s	Python 2	2019-09-08 21:17:17
10	Oskar Larsson	0.34 s	Python 2	2019-05-23 20:59:04

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Python 3	2022-09-09 15:22:04
2	Björn Magnusson	0.07 s	Python 3	2022-11-17 09:48:10
3	Josh Taylor	0.08 s	Python 3	2023-11-02 23:29:43
4	Stefán Darri Björnsson	0.08 s	Python 3	2025-09-15 11:01:53
5	Lennart Meyling	0.09 s	Python 3	2023-09-10 08:07:49
6	Kye W. Shi	0.12 s	Python 3	2020-01-24 01:50:02
7	Lasse Møldrup	0.14 s	Python 3	2023-10-15 20:52:21
8	Pim Meulensteen	0.21 s	Python 3	2021-04-06 21:00:56
9	Jonas van der Schaaf	0.21 s	Python 3	2021-04-06 21:17:13
10	Kelly Dance	0.22 s	Python 3	2024-07-30 00:34:59

#	User	Runtime	Language	Date
1	Erik Magnusson	0.01 s	Rust	2024-06-15 20:25:52
2	Daniel Anker Hermansen	0.01 s	Rust	2024-12-09 17:54:10
3	Hidden user	0.05 s	Rust	2025-11-24 20:25:17

#	User	Length	Language	Date
1	Ivan Petrov	570	C	2017-11-21 07:02:36
2	Pim Heeman	608	C	2020-04-02 07:26:47
3	Jesper Öqvist	1010	C	2018-04-03 08:58:29
4	Stefan Kennedy	1647	C	2016-10-25 12:01:40
5	Bergur Snorrason	5063	C	2019-01-28 20:09:12

#	User	Length	Language	Date
1	Bas te Kolste	1380	C#	2015-12-01 14:52:16

#	User	Length	Language	Date
1	Teikn Smith	223	C++	2024-07-31 06:47:49
2	Bianca Vicente	230	C++	2024-07-03 15:26:23
3	Elias Lolck	254	C++	2023-05-19 07:39:25
4	Lawry Sorenson	285	C++	2024-07-30 20:45:59
5	Dagur Þórisson	287	C++	2024-09-28 02:31:04
6	Rumbin Lee	338	C++	2023-05-25 11:59:47
7	Antonio Molina Lovett	341	C++	2016-04-09 19:39:41
8	Johan Wind	353	C++	2015-11-30 11:06:58
9	Yeung Man Tsung	375	C++	2023-01-13 16:06:30
10	Yeoh Han Yi	383	C++	2025-04-15 13:29:25

#	User	Length	Language	Date
1	Mike Nguyen	844	Go	2024-05-18 20:55:38

#	User	Length	Language	Date
1	Hidden user	625	Java	2016-09-05 03:01:29
2	Daniel Hilpoltsteiner	656	Java	2015-12-13 18:43:46
3	Geson Chong	672	Java	2017-03-15 16:19:30
4	Malte Larsson	712	Java	2018-04-05 09:32:07
5	Mariel Nicole Allorde	796	Java	2023-08-06 06:41:29
6	Intothe Unknown	805	Java	2023-08-22 05:50:31
7	Hidden user	851	Java	2022-04-25 00:46:33
8	Faridha tino Delima	900	Java	2023-08-02 02:04:56
9	Faridha De Lima	902	Java	2023-08-09 04:48:02
10	Veronica Gunn	924	Java	2017-09-11 00:58:37

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	393	JavaScript (SpiderMonkey)	2023-11-22 08:42:04

#	User	Length	Language	Date
1	David Nilsson	293	Python 2	2019-06-08 08:43:04
2	Andreas Björklund	295	Python 2	2019-05-23 14:39:12
3	Oskar Larsson	374	Python 2	2019-05-23 20:59:04
4	Andrew Yang	383	Python 2	2017-04-14 00:49:57
5	Oskar Haarklou Veileborg	386	Python 2	2019-09-08 21:17:17
6	Lars Åström	400	Python 2	2018-04-06 17:01:58
7	Yong Kiat Tay	403	Python 2	2016-09-22 07:51:27
8	Jacob Gummesson Atroshi	482	Python 2	2019-05-22 21:34:17
9	Beichen Yu	497	Python 2	2018-10-04 12:56:48
10	Mees de Vries	498	Python 2	2019-06-03 12:40:45

#	User	Length	Language	Date
1	Thomas Feld	164	Python 3	2023-11-06 11:41:17
2	Kelly Dance	240	Python 3	2024-07-30 00:34:59
3	Lucas Patten	241	Python 3	2024-06-10 01:42:04
4	Josh Taylor	250	Python 3	2023-11-02 23:35:31
5	Iman Khodadi	259	Python 3	2024-07-19 17:15:47
6	Shanzy Kayani	269	Python 3	2025-01-07 06:23:17
7	Svana Björg Birgisdóttir	270	Python 3	2024-04-23 18:42:17
8	Nicholas Russell Saerang	271	Python 3	2023-03-26 00:24:29
9	chirurg	279	Python 3	2025-03-05 06:33:26
10	Steven Thijs	281	Python 3	2022-05-11 20:32:37

#	User	Length	Language	Date
1	Erik Magnusson	6272	Rust	2024-06-15 20:25:52
2	Daniel Anker Hermansen	12288	Rust	2024-12-09 17:54:47
3	Hidden user	15573	Rust	2025-11-24 20:25:17

Solution running time distribution