Problem A
Lektira — Problem Statistics

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Submissions	3227
Accepted submissions	1531
Submission ratio	47.44%
Authors	1411
Full solves [?]	1259
Full solve Ratio	89.23%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.01 s	Bash	2023-11-14 17:03:46

#	User	Runtime	Language	Date
1	Khin Nyunt	0.02 s	C#	2017-03-01 15:03:29
2	Daniel Klingstedt	0.03 s	C#	2017-06-13 11:32:14
3	Andrzej Krajniak	0.03 s	C#	2018-06-20 19:40:21
4	Marek	0.03 s	C#	2019-01-16 19:22:41
5	Adam Grady	0.03 s	C#	2021-09-01 00:07:14
6	Roland Andersson	0.04 s	C#	2020-07-24 11:55:01
7	Hidden user	0.04 s	C#	2022-06-12 15:08:57
8	traxex	0.04 s	C#	2024-05-15 12:22:39
9	Abdul Fattah	0.04 s	C#	2025-05-20 06:47:44
10	Lukas P.	0.05 s	C#	2026-03-04 20:19:12

#	User	Runtime	Language	Date
1	Andrea Roldán Muñoz	0.01 s	Common Lisp	2024-07-30 13:21:50

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.11 s	F#	2023-02-28 19:24:20

#	User	Runtime	Language	Date
1	Khin Nyunt	0.00 s	Go	2023-09-13 11:19:32
2	Norbert Voelker	0.08 s	Go	2021-09-19 15:52:49
3	Hidden user	0.08 s	Go	2021-09-22 01:00:34

#	User	Runtime	Language	Date
1	Oskar Segersvärd	0.00 s	Haskell	2014-11-24 14:24:23
2	David Wärn	0.00 s	Haskell	2015-05-31 15:53:58
3	Antony Lee	0.00 s	Haskell	2018-05-13 15:08:04
4	Steinar Simonnes	0.00 s	Haskell	2023-12-09 17:24:47
5	Ola Berglund	0.00 s	Haskell	2024-02-22 14:44:23
6	vagabundus	0.00 s	Haskell	2024-05-07 21:53:45
7	Sebastian Banert	0.00 s	Haskell	2024-10-20 16:59:12
8	Christopher Westling	0.00 s	Haskell	2024-11-05 04:04:58
9	Olle Eriksson	0.01 s	Haskell	2018-09-16 20:45:11
10	Brent Yorgey	0.01 s	Haskell	2018-12-30 00:41:51

#	User	Runtime	Language	Date
1	Leon Wang	0.04 s	Java	2024-09-01 15:00:24
2	Hidden user	0.04 s	Java	2024-09-05 20:47:33
3	Dennis Shi	0.05 s	Java	2015-12-29 03:48:12
4	Hidden user	0.05 s	Java	2016-11-19 12:17:51
5	harshvardhan sharma	0.05 s	Java	2024-09-09 03:21:01
6	Viktor Mattsson	0.06 s	Java	2014-11-24 14:26:27
7	Thomas Sjöholm	0.06 s	Java	2014-11-24 14:39:32
8	Simon Xue	0.06 s	Java	2016-04-27 10:21:35
9	Martijn Muijsers	0.06 s	Java	2016-10-12 20:03:45
10	James Black	0.06 s	Java	2016-10-17 03:16:15

#	User	Runtime	Language	Date
1	Karl Buchner	0.04 s	JavaScript (Node.js)	2024-07-19 15:52:16
2	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-11-21 10:21:20
3	Peter Kedemo	0.43 s	JavaScript (Node.js)	2019-12-30 22:33:27
4	Drake Cullen	0.43 s	JavaScript (Node.js)	2021-02-23 04:29:41

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-04-30 23:10:28
2	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-05-26 23:07:03

#	User	Runtime	Language	Date
1	Timothy Gaede	0.57 s	Julia	2024-05-09 17:16:40

#	User	Runtime	Language	Date
1	Johnny Baloney	0.13 s	Kotlin	2022-02-15 20:28:18
2	Jacob Huebner	0.14 s	Kotlin	2022-03-03 09:34:40
3	Adam Koprowski	0.21 s	Kotlin	2020-11-15 15:18:41
4	Hidden user	0.22 s	Kotlin	2020-04-09 17:08:44
5	Adam Rankin	0.22 s	Kotlin	2023-09-14 05:13:18

#	User	Runtime	Language	Date
1	Joakim Uddholm	0.03 s	Python 2	2014-11-24 14:18:15
2	Patrik Lilja	0.03 s	Python 2	2015-05-12 19:48:43
3	Erik Odenman	0.03 s	Python 2	2015-05-21 02:31:38
4	Christofer Ohlsson	0.03 s	Python 2	2015-07-09 16:49:02
5	William Granados	0.03 s	Python 2	2015-10-18 02:59:22
6	Hidden user	0.03 s	Python 2	2016-01-03 15:52:44
7	Alvaro Silvino	0.03 s	Python 2	2016-03-29 21:33:46
8	Lars Tveito	0.03 s	Python 2	2016-09-24 01:12:18
9	Benjamin Nichols	0.03 s	Python 2	2016-09-24 07:39:51
10	Matt Bonsall	0.03 s	Python 2	2016-10-10 00:09:09

#	User	Runtime	Language	Date
1	Mikael Florén	0.02 s	Python 3	2014-11-24 14:42:54
2	James Elías Sigurðarson	0.02 s	Python 3	2015-06-12 14:00:05
3	Hidden user	0.02 s	Python 3	2015-11-19 21:46:41
4	Svend Christian Svendsen	0.02 s	Python 3	2016-09-28 18:07:39
5	John William O'Rourke	0.02 s	Python 3	2016-10-09 22:16:45
6	Tore Norderud	0.02 s	Python 3	2016-10-11 13:50:40
7	Ciara Godwin	0.02 s	Python 3	2017-12-03 20:50:02
8	James Hamm	0.02 s	Python 3	2017-12-17 18:58:49
9	Lars Åström	0.02 s	Python 3	2017-12-23 14:59:26
10	Aaron Dunigan AtLee	0.02 s	Python 3	2018-01-04 20:19:33

#	User	Runtime	Language	Date
1	Mehdi Maick	0.03 s	Ruby	2016-08-19 17:32:19
2	Lee Tze Han	0.05 s	Ruby	2018-06-16 15:42:01
3	Yusuke Ichiki	0.05 s	Ruby	2022-05-06 08:48:16
4	Dheeraj Kumar	0.06 s	Ruby	2022-09-23 23:52:11
5	Thomas Feld	0.06 s	Ruby	2023-03-01 13:37:08

#	User	Length	Language	Date
1	Chenzhang Hu	412	Bash	2023-11-14 17:03:46

#	User	Length	Language	Date
1	Raymond Yang	556	C	2021-07-02 03:39:02
2	Hidden user	799	C	2019-05-12 22:39:22
3	Hidden user	864	C	2021-03-10 21:38:45
4	Ashley Kessler	1012	C	2023-04-29 07:19:12
5	Finn Rudolph	1015	C	2022-06-18 22:13:20
6	LightFrantice	1064	C	2022-05-12 17:14:34
7	Jón Steinn Elíasson	1096	C	2017-07-06 19:31:20
8	Francis Apolinar	1108	C	2020-09-14 05:35:06
9	Eric Bright	1122	C	2015-04-23 03:30:52
10	Ng Wei Jie	1178	C	2020-02-18 11:12:09

#	User	Length	Language	Date
1	traxex	584	C#	2024-05-15 12:22:39
2	Adam Grady	1018	C#	2021-09-01 00:07:14
3	Daniel Klingstedt	1101	C#	2017-06-13 11:19:45
4	Abdul Fattah	1292	C#	2025-05-20 06:47:44
5	Lukas P.	1305	C#	2026-03-04 20:19:12
6	Hidden user	1311	C#	2022-06-12 15:08:57
7	Khin Nyunt	1881	C#	2017-03-01 15:03:29
8	Roland Andersson	2186	C#	2020-07-24 11:55:01
9	Marek	3727	C#	2019-01-16 19:22:41
10	Andrzej Krajniak	9189	C#	2018-06-20 19:40:21

#	User	Length	Language	Date
1	Mugeon Kim	325	C++	2024-03-24 07:51:12
2	Bbshsh Si	377	C++	2022-06-08 17:44:50
3	William Gan	405	C++	2017-12-18 16:59:02
4	Jerome Leow	409	C++	2020-11-22 09:17:57
5	Jianhua Li	414	C++	2018-07-21 01:20:03
6	Gabriele Masina	414	C++	2021-02-06 17:26:50
7	Lee Bing Heng	438	C++	2022-12-10 15:04:22
8	Qing Hao Chu	440	C++	2018-02-03 09:42:15
9	Chang Yuan	444	C++	2019-06-17 20:03:02
10	Nishan Tamng	446	C++	2018-02-20 08:16:47

#	User	Length	Language	Date
1	Andrea Roldán Muñoz	556	Common Lisp	2024-07-30 13:21:50

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	587	F#	2023-02-28 19:24:20

#	User	Length	Language	Date
1	Hidden user	494	Go	2021-09-22 01:00:34
2	Norbert Voelker	918	Go	2021-09-19 15:52:49
3	Khin Nyunt	1646	Go	2023-09-13 11:19:32

#	User	Length	Language	Date
1	David Wärn	254	Haskell	2015-05-31 15:53:58
2	Sebastian Banert	286	Haskell	2024-10-20 16:59:12
3	Christopher Westling	297	Haskell	2024-11-05 04:04:58
4	Antony Lee	318	Haskell	2018-05-13 15:08:04
5	Hidden user	323	Haskell	2023-12-01 15:08:48
6	Steinar Simonnes	370	Haskell	2023-12-09 17:24:47
7	Ola Berglund	446	Haskell	2024-02-22 14:44:23
8	vagabundus	506	Haskell	2024-05-07 21:53:45
9	Olle Eriksson	587	Haskell	2018-09-16 20:45:11
10	細川隆之介	644	Haskell	2022-05-12 06:47:13

#	User	Length	Language	Date
1	Mitch Price	622	Java	2016-10-09 22:20:17
2	Marc Dominic San Pedro	632	Java	2024-06-10 12:13:37
3	Åke Wettergren	661	Java	2019-09-26 17:11:44
4	Leslie Yip	662	Java	2023-07-03 04:08:30
5	Love Engman	741	Java	2016-05-24 19:43:58
6	Hidden user	741	Java	2018-12-31 05:02:37
7	Thomas King	741	Java	2020-07-15 19:59:32
8	Doug Goodman	744	Java	2018-02-01 23:06:40
9	David Van Nguyen	749	Java	2024-07-19 04:19:22
10	Hunter Mullen	763	Java	2025-02-12 03:13:04

#	User	Length	Language	Date
1	Peter Kedemo	767	JavaScript (Node.js)	2019-12-30 22:33:27
2	Drake Cullen	1105	JavaScript (Node.js)	2021-02-23 04:29:41
3	Khin Nyunt	1638	JavaScript (Node.js)	2021-11-21 10:21:20
4	Karl Buchner	1743	JavaScript (Node.js)	2024-07-19 15:52:16

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	330	JavaScript (SpiderMonkey)	2023-05-26 23:07:03
2	Bjørn Chr. Soltvedt	338	JavaScript (SpiderMonkey)	2016-04-30 23:10:28

#	User	Length	Language	Date
1	Timothy Gaede	350	Julia	2024-05-09 17:16:40

#	User	Length	Language	Date
1	Adam Koprowski	384	Kotlin	2020-11-15 15:18:41
2	Hidden user	459	Kotlin	2020-04-09 17:08:44
3	Jacob Huebner	491	Kotlin	2022-03-03 09:34:40
4	Johnny Baloney	901	Kotlin	2022-02-15 20:28:18
5	Adam Rankin	1160	Kotlin	2023-09-14 05:13:18

#	User	Length	Language	Date
1	Thomas Feld	136	Python 2	2020-08-27 13:07:38
2	Lars Tveito	151	Python 2	2016-09-24 01:12:18
3	Erik Odenman	165	Python 2	2015-05-21 02:31:38
4	Andreas Björklund	212	Python 2	2019-12-09 16:37:37
5	Måns Gezelius	214	Python 2	2018-04-23 15:13:18
6	Matt Bonsall	231	Python 2	2016-10-10 00:09:09
7	Johan Lyts	233	Python 2	2020-09-08 21:07:46
8	Gabriel Gonzalez	242	Python 2	2018-06-28 18:22:33
9	Benjamin Nichols	262	Python 2	2016-09-24 07:39:51
10	Jesper Öqvist	264	Python 2	2018-11-10 00:51:32

#	User	Length	Language	Date
1	Tobias Glimmerfors	97	Python 3	2023-07-17 10:36:27
2	Clement Oh	97	Python 3	2023-09-18 13:40:49
3	Emil Sandberg	99	Python 3	2023-07-17 19:00:05
4	Rafael Kristoforus Yanto	102	Python 3	2025-02-04 23:24:52
5	Cameron Kauffman	110	Python 3	2024-11-07 23:53:27
6	Tai Tze Kin	111	Python 3	2024-05-03 10:13:50
7	Benjamin Z White	112	Python 3	2023-04-07 00:16:35
8	Paco Criado	112	Python 3	2024-11-29 23:39:34
9	Edvard Walde Heimdal	113	Python 3	2023-11-20 10:52:44
10	Charles Ancheta	116	Python 3	2023-03-24 04:28:13

#	User	Length	Language	Date
1	Thomas Feld	85	Ruby	2023-03-01 13:44:34
2	Yusuke Ichiki	245	Ruby	2022-05-06 08:48:16
3	Mehdi Maick	280	Ruby	2016-08-19 17:32:19
4	Dheeraj Kumar	291	Ruby	2022-09-23 23:52:11
5	Lee Tze Han	384	Ruby	2018-06-16 15:42:01

#	User	Length	Language	Date
1	Vincent Lagerros	596	Rust	2024-09-02 11:40:17
2	Bas Dirks	635	Rust	2022-05-07 23:11:23
3	Lukas Dutrieux	1093	Rust	2025-09-05 17:26:33
4	藤原潮人	1151	Rust	2023-05-09 10:23:40
5	Isak Jägberg	1412	Rust	2024-10-17 14:20:09
6	Nikita Chudakov	1442	Rust	2024-02-04 15:21:46
7	Jason Hooper	1650	Rust	2020-05-03 22:20:22
8	Pahlevi Fikri Auliya	2260	Rust	2020-11-20 00:07:15
9	Ryosuke Takahashi	2967	Rust	2023-05-03 16:00:40
10	Christofer Nolander	3820	Rust	2019-10-18 16:04:40

Solution running time distribution