Problem I
Logland — Problem Statistics

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Submissions	997
Accepted submissions	274
Submission ratio	27.48%
Authors	237
Full solves [?]	190
Full solve Ratio	80.17%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.09 s	C	2019-10-02 10:09:02
2	Hidden user	0.13 s	C	2021-10-21 11:58:41
3	Alexandre Sauquet	0.16 s	C	2024-10-23 23:10:38

#	User	Runtime	Language	Date
1	Bernard Teo	0.02 s	C++	2019-01-18 16:26:26
2	Agis Daniels	0.02 s	C++	2019-12-01 01:17:03
3	Peter Jin	0.02 s	C++	2024-10-11 11:40:05
4	Frank Endriss	0.03 s	C++	2022-05-16 20:51:32
5	Joshua Andersson	0.04 s	C++	2022-10-03 00:45:04
6	Dmitry Lyubshin	0.09 s	C++	2018-07-12 15:30:52
7	Ludo Pulles	0.09 s	C++	2018-10-01 13:34:42
8	Arnav Sastry	0.09 s	C++	2018-12-25 00:36:35
9	She Jiayu	0.09 s	C++	2020-03-08 18:53:37
10	Rik Bauwens	0.09 s	C++	2020-11-29 15:33:19

#	User	Runtime	Language	Date
1	Brent Yorgey	0.47 s	Haskell	2023-04-20 13:35:04
2	Steinar Simonnes	0.55 s	Haskell	2025-02-18 09:06:30

#	User	Runtime	Language	Date
1	Alvin Lee	0.10 s	Java	2024-10-14 16:53:42
2	Leon Wang	0.11 s	Java	2024-10-16 00:43:30
3	Crystal Sharpe	0.22 s	Java	2020-07-07 10:31:04
4	Liam Keliher	0.28 s	Java	2020-07-01 02:39:34
5	Nick Wu	0.32 s	Java	2017-11-11 21:31:21
6	Jimmy Mårdell	0.33 s	Java	2017-10-27 18:52:55
7	Sebastian Hjelm	0.33 s	Java	2017-10-27 19:20:20
8	Tobias Glimmerfors	0.34 s	Java	2017-11-02 14:01:48
9	Mattias Gustafsson	0.36 s	Java	2017-10-28 12:57:19
10	Doug Goodman	0.38 s	Java	2019-06-11 21:49:41

#	User	Runtime	Language	Date
1	Hidden user	0.19 s	Python 2	2017-10-27 20:04:17
2	Sam Zackrisson	0.20 s	Python 2	2017-10-27 19:40:43
3	Måns Magnusson	0.20 s	Python 2	2017-10-27 19:44:06
4	Johan Lyts	0.20 s	Python 2	2019-05-07 14:16:05
5	Agis Daniels	0.23 s	Python 2	2019-12-01 01:08:53
6	Andreas Björklund	0.35 s	Python 2	2019-04-05 17:09:47
7	Robert Welin-Berger	0.59 s	Python 2	2017-10-27 18:59:32

#	User	Runtime	Language	Date
1	Michael Wu	0.22 s	Python 3	2024-10-12 02:48:51
2	Caden Wright	0.24 s	Python 3	2026-03-06 00:59:26
3	Bjørn Dons	0.25 s	Python 3	2020-05-12 12:14:45
4	Hidden user	0.25 s	Python 3	2026-03-06 00:56:21
5	Clement Oh	0.26 s	Python 3	2024-02-27 16:52:34
6	Ainun Najib	0.26 s	Python 3	2025-01-05 11:22:06
7	Munir Kudrati-Plummer	0.26 s	Python 3	2026-03-08 21:46:05
8	Charlie Heger	0.26 s	Python 3	2026-03-11 07:03:22
9	Jayoo Hwang	0.26 s	Python 3	2026-03-13 00:20:39
10	Ryce Pi	0.26 s	Python 3	2026-03-13 04:54:06

#	User	Runtime	Language	Date
1	Thomas Feld	0.94 s	Ruby	2023-08-01 12:51:23

#	User	Runtime	Language	Date
1	Hidden user	0.09 s	Rust	2025-05-04 19:36:56

#	User	Length	Language	Date
1	Ivan Petrov	584	C	2019-10-02 10:09:02
2	Hidden user	1071	C	2021-10-21 11:58:41
3	Alexandre Sauquet	1423	C	2024-10-23 23:10:38

#	User	Length	Language	Date
1	Rumbin Lee	188	C++	2023-06-04 15:26:18
2	anonymous	289	C++	2018-01-09 03:23:51
3	Hải Minh	309	C++	2020-03-09 05:47:36
4	Yuran Zhang	341	C++	2023-08-01 17:03:34
5	Nicolai Robinson	386	C++	2023-05-19 17:54:58
6	Peter Jin	388	C++	2023-11-07 20:20:16
7	Ludo Pulles	400	C++	2018-10-01 13:33:39
8	Elias Lolck	402	C++	2023-05-18 14:51:12
9	Clement Oh	413	C++	2023-09-27 15:36:26
10	Yung Chi Li	423	C++	2023-03-12 01:34:07

#	User	Length	Language	Date
1	Brent Yorgey	877	Haskell	2023-04-20 13:32:45
2	Steinar Simonnes	886	Haskell	2025-02-18 09:03:50

#	User	Length	Language	Date
1	Doug Goodman	678	Java	2019-06-11 21:49:41
2	Crystal Sharpe	789	Java	2020-07-07 10:32:54
3	harshvardhan sharma	1306	Java	2024-11-21 09:15:47
4	Nick Wu	2023	Java	2017-11-11 21:31:21
5	Jimmy Mårdell	2249	Java	2017-10-27 18:52:55
6	Sebastian Hjelm	2295	Java	2017-10-27 19:20:20
7	Mattias Gustafsson	2999	Java	2017-10-28 12:57:19
8	Liam Keliher	3840	Java	2020-07-01 02:39:34
9	Rene Argento	3957	Java	2022-08-21 01:32:58
10	Tobias Glimmerfors	4175	Java	2017-11-02 14:01:48

#	User	Length	Language	Date
1	Måns Magnusson	239	Python 2	2017-10-27 19:44:06
2	Johan Lyts	240	Python 2	2019-05-07 14:16:05
3	Hidden user	267	Python 2	2017-10-27 20:04:17
4	Agis Daniels	278	Python 2	2019-12-01 01:08:53
5	Robert Welin-Berger	511	Python 2	2017-10-27 18:59:32
6	Andreas Björklund	702	Python 2	2019-04-05 17:09:47
7	Sam Zackrisson	838	Python 2	2017-10-27 19:40:43

#	User	Length	Language	Date
1	Benjamin Z White	116	Python 3	2023-07-19 02:14:52
2	Caeden Whitaker	213	Python 3	2022-02-26 22:36:52
3	Hrant Hovhannisyan	226	Python 3	2025-04-10 10:36:18
4	Bryan Juniano	235	Python 3	2025-04-08 16:21:04
5	Clement Oh	238	Python 3	2024-02-27 16:52:34
6	Agis Daniels	264	Python 3	2019-12-01 01:08:17
7	Bjørn Dons	273	Python 3	2020-05-12 12:14:45
8	Ainun Najib	273	Python 3	2025-01-05 11:22:06
9	Elijah Spicer	284	Python 3	2022-02-27 01:41:53
10	Nicholas Russell Saerang	290	Python 3	2023-10-18 07:35:03

#	User	Length	Language	Date
1	Thomas Feld	158	Ruby	2023-08-01 12:51:23

#	User	Length	Language	Date
1	Hidden user	7427	Rust	2025-05-04 19:36:56

Solution running time distribution