Problem A
Inquiry I — Problem Statistics

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Submissions	2159
Accepted submissions	969
Submission ratio	44.88%
Authors	817
Full solves [?]	733
Full solve Ratio	89.72%

#	User	Runtime	Language	Date
1	Øyvind Almli	0.01 s	C	2021-02-09 14:36:10
2	Bergur Snorrason	0.02 s	C	2020-11-06 11:43:24
3	Eyleifur Bjarkason	0.03 s	C	2020-11-06 20:50:34
4	Sambit Palit	0.08 s	C	2020-12-01 03:25:34
5	Ian Howell	0.08 s	C	2021-02-18 17:27:34
6	Tyler Mulholland	0.08 s	C	2023-04-04 23:16:43
7	Mirel Cosulschi	0.08 s	C	2023-12-05 20:20:29
8	Ana-Maria Petre	0.08 s	C	2023-12-08 19:22:52
9	David Josué Ruiz Reyes	0.08 s	C	2025-11-07 22:34:39
10	ERNESTO ARTURO TORREZ MARENCO	0.08 s	C	2025-11-07 23:35:56

#	User	Runtime	Language	Date
1	Umar Rasyid	0.14 s	C#	2025-06-22 03:34:02
2	Sam Brands	0.15 s	C#	2023-11-10 16:32:02
3	Hamdanil Rasyid	0.23 s	C#	2025-01-11 20:38:35
4	Marek Gibek	0.42 s	C#	2020-11-18 20:03:36
5	Mikael Fiala-Lundström	0.45 s	C#	2021-06-14 00:19:09

#	User	Runtime	Language	Date
1	Øyvind Almli	0.01 s	C++	2021-02-09 14:08:05
2	Frank Endriss	0.02 s	C++	2020-12-08 19:46:50
3	Harrison Shen	0.02 s	C++	2021-02-02 17:23:53
4	Sagar Awale	0.02 s	C++	2021-03-15 06:35:33
5	Agis Daniels	0.02 s	C++	2021-12-07 01:30:23
6	Alexander Kravberg	0.02 s	C++	2023-02-02 01:00:05
7	Hidden user	0.03 s	C++	2020-11-07 05:26:32
8	Hidden user	0.06 s	C++	2020-12-15 10:53:01
9	Zhao Wei Liew	0.06 s	C++	2021-02-02 05:36:24
10	Caeden Whitaker	0.06 s	C++	2021-02-11 06:45:47

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.80 s	F#	2023-02-04 19:43:20

#	User	Runtime	Language	Date
1	Yuen Wei Hao	0.27 s	Fortran	2024-01-07 15:54:07

#	User	Runtime	Language	Date
1	Nathan Lee	0.06 s	Go	2025-11-24 13:59:41
2	Dylan	0.07 s	Go	2025-10-14 23:19:45
3	Norbert Voelker	0.13 s	Go	2021-06-29 22:45:09
4	Erlend Fonnes	0.19 s	Go	2021-02-05 10:52:15
5	Chris Vilches	0.31 s	Go	2024-08-19 18:45:11
6	Fauverick	4.07 s	Go	2024-09-26 00:56:03

#	User	Runtime	Language	Date
1	Jan Hrček	0.16 s	Haskell	2021-03-18 07:26:57
2	Brent Yorgey	0.22 s	Haskell	2020-11-07 11:59:26
3	Øyvind Almli	1.45 s	Haskell	2021-02-09 13:11:22
4	Morten Bergmann	1.46 s	Haskell	2021-02-05 00:33:35
5	Matthew Lutze	1.48 s	Haskell	2021-02-24 10:44:10
6	Hidden user	1.50 s	Haskell	2021-05-31 18:00:47
7	Rudy Matela	2.20 s	Haskell	2024-04-21 20:11:50

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.10 s	Java	2022-04-03 17:04:31
2	Simon Kristiansen	0.11 s	Java	2020-11-06 16:10:34
3	Crystal Sharpe	0.15 s	Java	2020-12-12 08:20:54
4	Doug Goodman	0.23 s	Java	2021-07-03 21:08:41
5	Lars Corbijn	0.24 s	Java	2021-10-31 15:22:57
6	Jeffrey H.	0.24 s	Java	2023-04-28 01:09:22
7	Ben Cobb	0.24 s	Java	2024-02-20 23:14:45
8	Stela Palii	0.25 s	Java	2022-02-13 05:46:03
9	Ho Lyun Jeong	0.26 s	Java	2021-10-02 22:03:52
10	Vatsal Mistry	0.27 s	Java	2023-03-31 22:38:13

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.41 s	JavaScript (SpiderMonkey)	2023-03-01 01:26:23
2	Bjørn Chr. Soltvedt	0.59 s	JavaScript (SpiderMonkey)	2024-06-28 14:12:57
3	Zach Tschetter	0.72 s	JavaScript (SpiderMonkey)	2023-05-08 22:55:10

#	User	Runtime	Language	Date
1	Hidden user	0.59 s	Julia	2025-04-10 12:29:34
2	Timothy Gaede	0.73 s	Julia	2024-04-26 08:16:18

#	User	Runtime	Language	Date
1	Jacob Huebner	0.33 s	Kotlin	2020-12-03 10:18:30
2	Adam Rankin	0.43 s	Kotlin	2023-08-31 05:03:14
3	Morten Bergmann	0.73 s	Kotlin	2021-02-04 16:54:35
4	Chris Johnson	1.39 s	Kotlin	2025-10-14 22:49:41

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.08 s	Pascal	2021-02-22 12:28:32

#	User	Runtime	Language	Date
1	Andriy Zyevakov	2.98 s	Prolog	2022-12-17 19:28:52

#	User	Runtime	Language	Date
1	Hasan Kalzi	0.14 s	Python 2	2022-06-18 11:08:45
2	Hidden user	0.17 s	Python 2	2020-11-12 09:52:33
3	Yanmarshus Bachtiar	0.18 s	Python 2	2020-11-14 06:56:19
4	Johan Lyts	0.24 s	Python 2	2020-11-17 13:54:25
5	Andreas Björklund	0.28 s	Python 2	2020-12-28 15:12:17
6	Felix Su	8.65 s	Python 2	2021-10-02 22:31:55

#	User	Runtime	Language	Date
1	Marcel Rød	0.15 s	Python 3	2021-12-31 15:34:25
2	Ram Basnet	0.16 s	Python 3	2021-12-02 06:49:57
3	Hasan Kalzi	0.17 s	Python 3	2022-06-18 11:08:25
4	poppyer	0.17 s	Python 3	2022-07-24 08:12:47
5	Maj Stenmark	0.18 s	Python 3	2022-01-07 15:52:36
6	Braydon Hunt	0.18 s	Python 3	2022-01-14 03:38:58
7	Hidden user	0.18 s	Python 3	2025-04-25 22:36:31
8	Oskar Haarklou Veileborg	0.19 s	Python 3	2020-11-08 21:16:51
9	Simon Kristiansen	0.19 s	Python 3	2020-11-11 14:29:04
10	Bjørn Chr. Soltvedt	0.19 s	Python 3	2021-01-05 01:23:09

#	User	Runtime	Language	Date
1	Thomas Feld	0.41 s	Ruby	2023-01-04 16:23:25
2	Hidden user	0.43 s	Ruby	2022-12-10 05:20:55

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2024-08-16 21:06:29
2	Artur Khuziakhmetov	0.03 s	Rust	2022-07-25 10:27:47
3	David Rasch	0.08 s	Rust	2021-03-11 17:27:26
4	Bas Dirks	0.08 s	Rust	2022-02-22 13:42:26
5	Ng Tek In	0.08 s	Rust	2022-08-29 19:43:19
6	Sondre Nilsen	0.09 s	Rust	2021-02-16 16:03:13
7	Horst Local	0.10 s	Rust	2025-05-30 17:10:14
8	Muhammad Rais Fathin Mudzakir	0.12 s	Rust	2021-06-22 18:39:51
9	Mckinley Xie	0.14 s	Rust	2025-04-25 22:06:30

#	User	Runtime	Language	Date
1	Nathan	0.03 s	Zig	2024-10-18 03:28:11

#	User	Length	Language	Date
1	Mirel Cosulschi	444	C	2023-12-05 20:20:29
2	PhilCampbell	539	C	2021-02-11 12:36:38
3	Sambit Palit	565	C	2020-12-01 03:25:34
4	Ian Howell	643	C	2021-02-18 17:35:15
5	Tyler Mulholland	656	C	2023-04-04 23:16:43
6	Brage Isak Keiserås Bakkane	726	C	2021-02-24 18:21:47
7	Ana-Maria Petre	879	C	2023-12-09 19:44:41
8	David Josué Ruiz Reyes	890	C	2025-11-07 22:34:39
9	Øyvind Almli	907	C	2021-02-09 14:36:54
10	ERNESTO ARTURO TORREZ MARENCO	909	C	2025-11-07 23:35:56

#	User	Length	Language	Date
1	Umar Rasyid	826	C#	2025-06-22 03:34:02
2	Marek Gibek	1154	C#	2020-11-18 20:03:36
3	Hamdanil Rasyid	1154	C#	2025-01-11 20:38:35
4	Mikael Fiala-Lundström	1211	C#	2021-06-14 00:19:09
5	Sam Brands	1373	C#	2023-11-10 16:32:02

#	User	Length	Language	Date
1	Stanislav Brega	271	C++	2022-11-19 22:09:17
2	Bbshsh Si	313	C++	2022-02-07 17:12:47
3	Jayden Wong	316	C++	2025-10-26 02:30:12
4	Nguyen Tran Huu Duc	337	C++	2022-01-14 15:30:34
5	Hidden user	339	C++	2021-02-19 19:09:35
6	Jesús Pacheco Alonso	344	C++	2024-01-14 14:53:39
7	Yeung Man Tsung	348	C++	2022-12-24 10:38:25
8	Hưng Nguyễn (Hưng IT)	349	C++	2024-10-08 01:29:04
9	蔡童彥	352	C++	2025-06-14 03:22:29
10	Jason Huang	361	C++	2021-10-02 22:14:39

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	532	F#	2023-02-04 19:43:20

#	User	Length	Language	Date
1	Yuen Wei Hao	1386	Fortran	2024-01-07 15:52:42

#	User	Length	Language	Date
1	Chris Vilches	383	Go	2024-08-19 18:42:20
2	Dylan	615	Go	2025-10-14 23:19:45
3	Erlend Fonnes	617	Go	2021-02-05 10:59:03
4	Norbert Voelker	627	Go	2021-06-29 22:45:09
5	Fauverick	759	Go	2024-09-26 00:56:03
6	Nathan Lee	799	Go	2025-11-24 13:59:41

#	User	Length	Language	Date
1	Morten Bergmann	349	Haskell	2021-02-05 00:33:35
2	Øyvind Almli	349	Haskell	2021-02-09 13:13:50
3	Rudy Matela	722	Haskell	2024-04-21 20:11:50
4	Matthew Lutze	751	Haskell	2021-02-24 10:44:10
5	Jan Hrček	836	Haskell	2021-03-18 07:26:57
6	Brent Yorgey	1413	Haskell	2020-11-07 11:59:26
7	Hidden user	11105	Haskell	2021-05-31 18:00:47

#	User	Length	Language	Date
1	Justin Yang	488	Java	2022-12-20 21:22:41
2	Bui Xuan Tuyet Son	561	Java	2021-05-03 03:16:09
3	Ruhan Goltay	567	Java	2021-11-09 07:36:34
4	Suhas T. Nagar	654	Java	2021-10-02 23:28:05
5	Alexander Goldstein	656	Java	2024-09-09 21:51:24
6	Lim Swee En	660	Java	2023-01-26 07:49:18
7	Stela Palii	670	Java	2022-02-13 05:46:03
8	David Van Nguyen	719	Java	2024-07-14 18:27:04
9	AIDAN JAN	743	Java	2021-10-02 22:43:08
10	Benhur Tekeste	761	Java	2021-11-05 22:26:20

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	363	JavaScript (SpiderMonkey)	2024-06-28 14:12:57
2	Christian Pilegaard Cederquist	432	JavaScript (SpiderMonkey)	2023-03-01 01:26:23
3	Zach Tschetter	455	JavaScript (SpiderMonkey)	2023-05-08 22:55:10

#	User	Length	Language	Date
1	Hidden user	109	Julia	2025-04-10 12:40:59
2	Timothy Gaede	687	Julia	2024-04-26 08:16:18

#	User	Length	Language	Date
1	Jacob Huebner	366	Kotlin	2020-12-03 10:18:30
2	Adam Rankin	378	Kotlin	2023-08-31 05:03:14
3	Chris Johnson	493	Kotlin	2025-10-14 22:49:41
4	Morten Bergmann	524	Kotlin	2021-02-04 16:54:35

#	User	Length	Language	Date
1	Ingemar Ragnemalm	762	Pascal	2021-02-22 12:28:32

#	User	Length	Language	Date
1	Andriy Zyevakov	775	Prolog	2022-12-17 19:28:52

#	User	Length	Language	Date
1	Andreas Björklund	193	Python 2	2020-12-28 15:12:17
2	Johan Lyts	215	Python 2	2020-11-17 13:54:25
3	Felix Su	224	Python 2	2021-10-02 22:31:55
4	Yanmarshus Bachtiar	274	Python 2	2020-11-14 06:56:19
5	Hasan Kalzi	486	Python 2	2021-04-17 17:40:16
6	Hidden user	578	Python 2	2020-11-12 09:52:33

#	User	Length	Language	Date
1	Clement Oh	76	Python 3	2023-06-11 07:19:28
2	Ahmed Chamseddine	108	Python 3	2024-09-13 19:00:44
3	Thomas Feld	112	Python 3	2022-08-29 14:42:11
4	Montgomery Bohde	112	Python 3	2024-03-29 19:22:23
5	David Aldenbro	120	Python 3	2025-10-12 16:56:08
6	Hao Ye	122	Python 3	2024-09-18 22:45:03
7	Alexandre Douard	127	Python 3	2025-08-09 00:43:56
8	Evan Rose	128	Python 3	2023-05-01 17:40:25
9	Tan Yi Long	129	Python 3	2025-04-30 19:46:09
10	Hidden user	140	Python 3	2022-12-11 01:09:49

#	User	Length	Language	Date
1	Thomas Feld	60	Ruby	2023-01-04 16:23:25
2	Hidden user	66	Ruby	2022-12-10 05:20:55

#	User	Length	Language	Date
1	Bas Dirks	525	Rust	2022-02-22 13:49:08
2	David Rasch	582	Rust	2021-03-11 17:30:45
3	Horst Local	634	Rust	2025-05-30 17:19:06
4	Ng Tek In	833	Rust	2022-08-29 19:43:19
5	Sondre Nilsen	869	Rust	2021-02-16 16:03:13
6	Artur Khuziakhmetov	913	Rust	2022-07-25 10:27:47
7	Mckinley Xie	1271	Rust	2025-04-25 22:06:30
8	Muhammad Rais Fathin Mudzakir	4005	Rust	2021-06-22 18:39:51
9	Vincent Lagerros	13696	Rust	2024-08-16 21:07:20

#	User	Length	Language	Date
1	Nathan	871	Zig	2024-10-18 03:28:11

Solution running time distribution