Problem K
Checking For Correctness — Problem Statistics

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Submissions	3240
Accepted submissions	953
Submission ratio	29.41%
Authors	822
Full solves [?]	688
Full solve Ratio	83.70%

#	User	Runtime	Language	Date
1	Andrew Roberts	0.01 s	C	2018-04-23 22:51:51
2	Austin Fernandez	0.01 s	C	2019-10-05 05:18:23
3	Christianne Marie Vinco	0.01 s	C	2019-10-05 05:42:03
4	Bergur Snorrason	0.01 s	C	2019-10-24 20:40:18
5	Eyleifur Bjarkason	0.01 s	C	2019-10-24 23:11:42
6	Mark Bartish	0.01 s	C	2020-10-30 15:35:28
7	April Clark	0.01 s	C	2021-09-28 01:26:48
8	Jack Gurdin	0.01 s	C	2024-09-20 09:43:26
9	Mirel Cosulschi	0.01 s	C	2025-01-07 22:59:17
10	a_b__c	0.02 s	C	2021-02-20 17:45:23

#	User	Runtime	Language	Date
1	OmniL RenegadE	0.13 s	C#	2016-11-29 10:03:09
2	Albert Samigullin	0.13 s	C#	2016-12-01 14:39:43
3	Andriy Zyevakov	0.16 s	C#	2016-11-22 19:45:25

#	User	Runtime	Language	Date
1	Alexander Kravberg	0.00 s	C++	2023-08-13 14:45:39
2	Lin Lee	0.01 s	C++	2016-03-30 11:08:23
3	Yung-Luen Lan	0.01 s	C++	2016-08-18 02:04:23
4	Wen Li Looi	0.01 s	C++	2016-10-27 03:44:00
5	Agis Daniels	0.01 s	C++	2017-02-20 23:53:34
6	Tan Jun An	0.01 s	C++	2017-02-26 16:32:25
7	Hidden user	0.01 s	C++	2017-06-26 06:31:34
8	Andreas Wassum	0.01 s	C++	2017-07-29 21:21:32
9	Robert Cummings	0.01 s	C++	2017-10-19 03:18:17
10	Anthony Wong	0.01 s	C++	2017-11-11 01:02:11

#	User	Runtime	Language	Date
1	Theodor Ström	0.16 s	Common Lisp	2022-10-08 08:51:31

#	User	Runtime	Language	Date
1	Norbert Voelker	0.10 s	Go	2023-03-20 17:38:32
2	Yitian Wang	0.13 s	Go	2023-01-19 07:55:48
3	Harrison Shen	0.17 s	Go	2021-08-20 08:05:34

#	User	Runtime	Language	Date
1	Brent Yorgey	0.06 s	Haskell	2021-03-20 11:22:47
2	Jan Hlavacek	0.17 s	Haskell	2016-11-26 08:19:20
3	Emil Østergaard	0.21 s	Haskell	2020-09-17 20:57:22

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.09 s	Java	2023-04-09 21:06:25
2	Crystal Sharpe	0.18 s	Java	2020-07-09 05:55:09
3	Herman Appelgren	0.19 s	Java	2018-04-04 23:15:25
4	Terrence Park	0.22 s	Java	2016-04-14 22:31:12
5	Kaung Lin Oo	0.22 s	Java	2016-05-27 19:52:15
6	Taras Romanyuk	0.22 s	Java	2024-09-28 19:48:44
7	Nick Wu	0.23 s	Java	2016-03-18 21:01:53
8	Who Am I?	0.23 s	Java	2016-05-27 19:17:03
9	Thida Tun	0.23 s	Java	2016-06-21 21:06:08
10	Ko Hades	0.23 s	Java	2016-06-24 12:49:12

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.19 s	JavaScript (SpiderMonkey)	2024-06-27 10:25:00
2	Christian Pilegaard Cederquist	0.28 s	JavaScript (SpiderMonkey)	2023-02-05 13:44:07

#	User	Runtime	Language	Date
1	Hidden user	0.76 s	Julia	2025-08-21 19:38:44
2	Timothy Gaede	1.06 s	Julia	2024-08-17 06:33:53

#	User	Runtime	Language	Date
1	Hidden user	0.94 s	Kotlin	2019-11-29 14:36:45
2	Dayan Ruben Gonzalez	1.00 s	Kotlin	2020-10-09 05:02:23
3	Phường Lên	1.30 s	Kotlin	2020-04-20 04:19:41

#	User	Runtime	Language	Date
1	Josenildo Silva	0.07 s	Python 2	2017-05-05 23:40:05
2	Hermon Mulat	0.07 s	Python 2	2018-11-28 21:12:32
3	Mathis Hammel	0.08 s	Python 2	2016-11-24 23:24:57
4	Hidden user	0.08 s	Python 2	2019-07-17 00:52:18
5	Yanmarshus Bachtiar	0.08 s	Python 2	2020-11-01 03:09:37
6	Arne Tobias Malkenes Ødegaard	0.09 s	Python 2	2016-04-18 13:09:21
7	Øyvind Haarberg	0.09 s	Python 2	2018-04-22 23:26:49
8	Wang Zhi Jian	0.09 s	Python 2	2018-11-12 18:40:59
9	Lars Åström	0.09 s	Python 2	2019-09-25 15:52:37
10	Erik Sillén	0.10 s	Python 2	2016-09-25 23:40:23

#	User	Runtime	Language	Date
1	Dante Bencivenga	0.07 s	Python 3	2022-08-16 22:32:18
2	Chinagorom Mbaraonye	0.07 s	Python 3	2024-10-17 16:30:01
3	Zachary Kokot	0.07 s	Python 3	2025-02-06 02:49:24
4	Neo blash	0.07 s	Python 3	2025-02-06 05:55:43
5	Faiz Marsad	0.07 s	Python 3	2025-02-06 05:57:38
6	Ingvar Þór Jónsson	0.07 s	Python 3	2025-03-10 22:35:22
7	Hidden user	0.07 s	Python 3	2026-02-13 14:53:59
8	Cheng Hang	0.08 s	Python 3	2018-03-24 15:35:39
9	Cian Ruane	0.08 s	Python 3	2018-03-28 18:05:25
10	Ram Basnet	0.08 s	Python 3	2019-01-04 05:34:58

#	User	Runtime	Language	Date
1	Zohar Malamant	0.21 s	Ruby	2018-04-23 16:21:28
2	Thomas Feld	0.30 s	Ruby	2023-02-16 14:49:21

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-02-02 18:34:09
2	Artur Khuziakhmetov	0.00 s	Rust	2025-11-11 09:11:15
3	Mathias Magnusson	0.01 s	Rust	2022-02-10 13:26:25
4	Aaron Lengyel	0.02 s	Rust	2023-01-23 05:48:12
5	Theodor Ström	0.04 s	Rust	2022-02-09 13:12:11
6	Gustaf Haglund	0.05 s	Rust	2022-04-22 11:53:39
7	Lukas "Dreamplay" Friman	0.06 s	Rust	2022-02-09 11:44:38

#	User	Length	Language	Date
1	a_b__c	379	C	2021-02-20 17:45:23
2	Jack Gurdin	582	C	2024-09-20 09:43:26
3	April Clark	597	C	2021-09-28 01:26:48
4	Andrew Roberts	677	C	2018-04-23 22:51:51
5	Mirel Cosulschi	757	C	2025-01-07 22:59:17
6	Christianne Marie Vinco	882	C	2019-10-05 05:42:03
7	Austin Fernandez	888	C	2019-10-05 05:18:23
8	Mark Bartish	1083	C	2020-10-30 15:35:28
9	Bergur Snorrason	1828	C	2019-10-24 20:42:21
10	Sanjiv Dinakar	2899	C	2024-01-18 01:26:55

#	User	Length	Language	Date
1	OmniL RenegadE	1431	C#	2016-11-29 10:03:09
2	Albert Samigullin	4365	C#	2016-12-01 14:39:43
3	Andriy Zyevakov	9891	C#	2016-11-22 19:45:25

#	User	Length	Language	Date
1	Wen Li Looi	460	C++	2016-10-27 03:44:00
2	Christian Yongwhan Lim	481	C++	2023-06-03 17:02:41
3	Rares Felix Tudose	489	C++	2021-07-08 09:04:23
4	Si Jie Lin	496	C++	2018-03-24 08:35:32
5	William Gan	501	C++	2018-01-16 17:20:41
6	Sidhant Bansal	506	C++	2018-03-27 05:58:45
7	Donald Dong	513	C++	2019-03-20 17:26:06
8	Atli Fannar Franklín	517	C++	2023-06-21 16:10:59
9	Debabhiram Manik	528	C++	2022-02-11 10:57:22
10	thiamine	529	C++	2023-10-16 12:59:44

#	User	Length	Language	Date
1	Theodor Ström	917	Common Lisp	2022-10-08 08:51:31

#	User	Length	Language	Date
1	Harrison Shen	853	Go	2021-08-20 08:05:34
2	Norbert Voelker	986	Go	2023-03-20 17:38:32
3	Yitian Wang	1274	Go	2023-01-19 07:55:48

#	User	Length	Language	Date
1	Emil Østergaard	656	Haskell	2020-09-17 20:57:22
2	Jan Hlavacek	832	Haskell	2016-11-26 08:19:20
3	Brent Yorgey	2348	Haskell	2021-03-20 11:22:47

#	User	Length	Language	Date
1	Brendan King	621	Java	2020-08-25 02:56:50
2	Artemis Ngoh	622	Java	2023-07-19 21:29:21
3	Minh Phúc Lê	679	Java	2018-03-24 09:42:29
4	Mahdi Nasser	679	Java	2023-02-07 15:12:41
5	Albert Rise Nielsen	685	Java	2020-11-15 01:03:57
6	Adrian Bay Dorph	738	Java	2020-11-11 15:47:51
7	Bob Rein	743	Java	2021-03-02 00:47:25
8	Steven Halim	760	Java	2017-08-07 14:51:35
9	Lee Wei Ming	761	Java	2024-01-29 13:23:20
10	Hidden user	767	Java	2019-09-25 03:22:30

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	614	JavaScript (SpiderMonkey)	2023-02-05 13:44:07
2	Bjørn Chr. Soltvedt	721	JavaScript (SpiderMonkey)	2024-06-27 10:25:00

#	User	Length	Language	Date
1	Timothy Gaede	338	Julia	2024-08-17 06:33:53
2	Hidden user	415	Julia	2025-08-21 19:38:44

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	416	Kotlin	2020-10-09 05:02:23
2	Phường Lên	760	Kotlin	2020-04-20 04:19:41
3	Hidden user	791	Kotlin	2019-11-29 14:36:45

#	User	Length	Language	Date
1	Lars Åström	219	Python 2	2019-09-25 15:52:37
2	Agis Daniels	226	Python 2	2020-06-07 16:30:22
3	Arne Tobias Malkenes Ødegaard	248	Python 2	2016-04-18 13:09:21
4	Hidden user	257	Python 2	2019-07-17 00:52:18
5	Wang Zhi Jian	268	Python 2	2018-11-12 18:40:59
6	Johan Lyts	285	Python 2	2019-03-28 14:51:10
7	Yanmarshus Bachtiar	294	Python 2	2020-11-01 03:09:37
8	Mathis Hammel	304	Python 2	2016-11-24 23:24:57
9	Michael Huang	305	Python 2	2018-05-16 16:35:28
10	Erik Sillén	307	Python 2	2016-09-25 23:40:23

#	User	Length	Language	Date
1	Clement Oh	85	Python 3	2023-05-23 19:47:03
2	Enayatullah Norozi	108	Python 3	2022-03-30 20:15:16
3	Teikn Smith	113	Python 3	2024-08-30 01:16:53
4	Peter Stauder	127	Python 3	2023-05-09 21:35:15
5	Sander Oppen	149	Python 3	2024-07-20 15:57:06
6	Ahmed Chamseddine	150	Python 3	2023-10-03 15:31:01
7	Nicholas Russell Saerang	159	Python 3	2023-07-21 08:43:42
8	Oreofe Solarin	159	Python 3	2023-09-29 15:50:45
9	Shashank Bhatt	161	Python 3	2025-03-26 01:44:54
10	a_b__c	171	Python 3	2021-02-20 17:33:48

#	User	Length	Language	Date
1	Thomas Feld	54	Ruby	2023-02-16 14:53:14
2	Zohar Malamant	326	Ruby	2018-04-23 16:21:28

#	User	Length	Language	Date
1	Artur Khuziakhmetov	813	Rust	2025-11-11 08:29:49
2	Theodor Ström	960	Rust	2022-02-09 13:12:11
3	Gustaf Haglund	1062	Rust	2022-04-22 12:03:42
4	Vincent Lagerros	1107	Rust	2024-02-02 18:26:33
5	Mathias Magnusson	1430	Rust	2022-02-10 13:26:25
6	Lukas "Dreamplay" Friman	2160	Rust	2022-02-09 11:44:38
7	Aaron Lengyel	4899	Rust	2023-01-23 05:48:32

Solution running time distribution