Problem I
Crne — Problem Statistics

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Submissions	3841
Accepted submissions	1497
Submission ratio	38.97%
Authors	1477
Full solves [?]	1283
Full solve Ratio	86.87%

#	User	Runtime	Language	Date
1	Mathis Hammel	0.01 s	Bash	2024-01-19 01:11:49
2	Frans Meulenbroeks	0.01 s	Bash	2025-03-08 19:14:35
3	Chenzhang Hu	0.01 s	Bash	2025-09-12 14:57:07
4	Thomas Feld	0.06 s	Bash	2023-09-26 14:48:32

#	User	Runtime	Language	Date
1	Tor Nordqvist	0.01 s	C#	2016-11-07 15:28:43
2	Andrzej Krajniak	0.02 s	C#	2017-08-23 17:59:38
3	Armin Krauss	0.02 s	C#	2018-11-24 18:58:57
4	Brutus Hansson	0.02 s	C#	2019-01-23 12:41:01
5	Sebastian Garcia	0.02 s	C#	2019-02-15 23:13:25
6	Mark Liu	0.02 s	C#	2019-04-06 19:02:32
7	Garway Mei	0.02 s	C#	2019-04-08 01:23:21
8	Nils Lenart	0.02 s	C#	2020-04-01 12:23:14
9	Johan Litsfeldt	0.02 s	C#	2021-03-29 02:17:06
10	Mikael Fiala-Lundström	0.02 s	C#	2021-07-01 22:02:08

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2023-01-23 14:23:50

#	User	Runtime	Language	Date
1	sober_junkie	0.00 s	Go	2025-05-12 03:37:22
2	Krzysztof Gibuła	0.02 s	Go	2022-12-08 18:51:47
3	Zeheng Li	0.02 s	Go	2023-01-19 17:00:37
4	Lucas Leodler	0.07 s	Go	2020-10-31 02:50:19
5	Norbert Voelker	0.07 s	Go	2021-07-25 22:41:39
6	Erik Rairden	0.08 s	Go	2021-01-23 02:33:01
7	Nyamdavaa Amar	0.08 s	Go	2022-04-21 04:40:19

#	User	Runtime	Language	Date
1	Taras Romanyuk	0.04 s	Java	2024-07-31 00:07:12
2	Sahasrad Chippa	0.04 s	Java	2024-09-07 19:51:33
3	Rene Argento	0.04 s	Java	2024-11-26 02:59:42
4	Charlie Börjeson	0.05 s	Java	2016-09-27 17:47:25
5	Terrence Park	0.05 s	Java	2016-09-29 05:57:49
6	Erik Baalhuis	0.05 s	Java	2016-10-03 12:38:38
7	Thomas Rooijakkers	0.05 s	Java	2016-10-18 15:54:42
8	John Harrison	0.05 s	Java	2016-10-23 22:31:21
9	Martijn Muijsers	0.05 s	Java	2016-10-26 20:23:57
10	Brad Kratky	0.05 s	Java	2016-11-04 05:54:57

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-10-20 00:52:43

#	User	Runtime	Language	Date
1	Noszály Csaba	0.25 s	Julia	2025-03-16 07:12:27
2	Timothy Gaede	0.52 s	Julia	2024-06-26 01:51:52

#	User	Runtime	Language	Date
1	Jacob Huebner	0.11 s	Kotlin	2022-02-16 01:06:33
2	Dayan Ruben Gonzalez	0.14 s	Kotlin	2020-09-27 23:03:14
3	Kelly Dance	0.15 s	Kotlin	2022-10-13 17:34:15
4	Adam Rankin	0.16 s	Kotlin	2023-05-07 19:48:29
5	Adam Koprowski	0.17 s	Kotlin	2021-03-20 18:06:02
6	Hidden user	0.17 s	Kotlin	2021-05-04 10:51:53
7	Phường Lên	0.20 s	Kotlin	2019-11-01 05:56:32

#	User	Runtime	Language	Date
1	Shehab Ahmed Hatem	0.00 s	Lua	2023-11-14 17:53:25
2	Zeheng Li	0.00 s	Lua	2023-12-04 22:39:03

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-09-21 11:13:15

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.00 s	Perl	2025-09-24 14:26:15
2	Thomas Feld	0.00 s	Perl	2025-10-01 14:22:57

#	User	Runtime	Language	Date
1	Susanne Ragnemalm	0.01 s	PHP	2018-10-02 03:08:46
2	Renate	0.01 s	PHP	2024-04-10 22:44:38

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2018-12-06 11:12:14

#	User	Runtime	Language	Date
1	Hannes Bredberg	0.02 s	Python 2	2016-09-27 17:31:07
2	Matt Bonsall	0.02 s	Python 2	2016-10-23 22:14:09
3	Trevor Masters	0.02 s	Python 2	2016-11-17 21:44:31
4	Ben Ao	0.02 s	Python 2	2016-11-21 10:50:51
5	Mathis Hammel	0.02 s	Python 2	2017-01-23 23:44:39
6	Haggai Liu	0.02 s	Python 2	2017-06-10 06:09:37
7	Erin Birkwood	0.02 s	Python 2	2017-06-20 01:36:14
8	Michael Pfeifer	0.02 s	Python 2	2017-06-20 03:27:00
9	Josh Long	0.02 s	Python 2	2017-09-27 00:55:36
10	Justin Su	0.02 s	Python 2	2017-09-27 21:21:20

#	User	Runtime	Language	Date
1	Marika Rostvall	0.02 s	Python 3	2016-09-27 17:32:58
2	Robert Welin-Berger	0.02 s	Python 3	2016-09-27 18:07:56
3	Matias Frank Jensen	0.02 s	Python 3	2016-10-16 19:22:45
4	Clint Nieuwendijk	0.02 s	Python 3	2016-10-26 14:19:39
5	William Fiset	0.02 s	Python 3	2016-11-03 21:08:59
6	Bjarki Stefánsson	0.02 s	Python 3	2017-01-16 21:50:15
7	Hannes Kristján Hannesson	0.02 s	Python 3	2017-03-08 21:50:13
8	Isaac Lee	0.02 s	Python 3	2017-03-09 01:52:25
9	Vahagn Altunyan	0.02 s	Python 3	2017-04-09 21:12:40
10	Martin Jackson	0.02 s	Python 3	2017-04-15 03:47:32

#	User	Runtime	Language	Date
1	Hugo Winbladh	0.03 s	Ruby	2017-08-16 12:55:03
2	Hidden user	0.05 s	Ruby	2021-08-09 18:07:49
3	Frederik Spang	0.05 s	Ruby	2022-09-30 19:15:00
4	Andreas Severin Hauch Trøstrup	0.05 s	Ruby	2022-10-02 15:07:13
5	Thomas Feld	0.06 s	Ruby	2022-12-07 13:02:10
6	Hidden user	0.06 s	Ruby	2022-12-10 04:06:19
7	Christian Pilegaard Cederquist	0.06 s	Ruby	2023-01-13 00:14:47
8	Gustav Elmqvist	0.06 s	Ruby	2023-03-18 02:58:00

#	User	Runtime	Language	Date
1	Isak Jägberg	0.00 s	Rust	2020-08-15 12:34:55
2	Muhammad Rais Fathin Mudzakir	0.00 s	Rust	2021-05-29 19:23:22
3	Zac Clifton	0.00 s	Rust	2021-10-21 06:00:26
4	Bas Dirks	0.00 s	Rust	2022-01-18 23:42:07
5	David Rasch	0.00 s	Rust	2022-11-23 14:25:36

#	User	Runtime	Language	Date
1	Robert Morelli	0.00 s	Zig	11:09:34

#	User	Length	Language	Date
1	Chenzhang Hu	20	Bash	2025-09-13 16:51:54
2	Mathis Hammel	22	Bash	2024-01-19 01:11:49
3	Thomas Feld	25	Bash	2023-09-26 14:50:04
4	Frans Meulenbroeks	31	Bash	2025-03-08 19:23:26

#	User	Length	Language	Date
1	April Clark	120	C	2023-02-24 04:23:19
2	Batu Tsai	144	C	2024-12-16 15:06:32
3	陳婕熙	156	C	2023-10-04 15:09:22
4	Sang Won	169	C	2023-08-04 13:54:17
5	Szymon Kucharski	177	C	2022-12-12 15:23:48
6	潘治均	186	C	2023-10-29 09:08:09
7	arda atci	187	C	2022-05-30 00:24:33
8	Sai Sourabh C	188	C	2023-02-07 08:51:06
9	Michael Noronha	199	C	2017-03-09 02:14:27
10	陳閔駿	199	C	2025-10-20 12:37:53

#	User	Length	Language	Date
1	Tor Nordqvist	269	C#	2016-11-07 15:28:43
2	Garway Mei	285	C#	2019-11-19 14:11:28
3	Sebastian Garcia	345	C#	2019-02-15 23:13:25
4	Brutus Hansson	363	C#	2019-01-23 12:41:01
5	Armin Krauss	385	C#	2018-11-24 18:58:57
6	Mark Liu	501	C#	2019-04-06 19:02:32
7	Mikael Fiala-Lundström	1423	C#	2021-07-01 22:02:08
8	Allan	2722	C#	2025-10-21 14:18:58
9	Johan Litsfeldt	3267	C#	2021-03-29 02:17:06
10	Andrzej Krajniak	4202	C#	2017-08-23 17:59:38

#	User	Length	Language	Date
1	Tyler Fernando	69	C++	2022-11-01 08:53:49
2	Vu Duy Dung	114	C++	2017-10-21 08:40:31
3	Jesper Bech Christensen	114	C++	2022-09-13 13:17:07
4	Way Tan	122	C++	2018-11-30 14:00:52
5	Zane Yu	122	C++	2018-12-30 05:11:53
6	陳閔駿	122	C++	2024-12-16 14:56:29
7	Johan Wind	124	C++	2017-04-20 23:07:48
8	blameazu	124	C++	2024-07-01 05:38:13
9	Hidden user	125	C++	2024-04-24 19:46:57
10	Ainun Nadhifah Syamsiyah	126	C++	2020-11-21 08:29:14

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	246	F#	2023-01-23 14:23:50

#	User	Length	Language	Date
1	Zeheng Li	127	Go	2023-01-19 17:00:37
2	Nyamdavaa Amar	129	Go	2022-04-21 04:40:19
3	sober_junkie	201	Go	2025-05-12 03:37:22
4	Erik Rairden	234	Go	2021-01-23 02:33:01
5	Lucas Leodler	243	Go	2020-10-31 02:50:19
6	Norbert Voelker	284	Go	2021-07-25 22:39:12
7	Krzysztof Gibuła	343	Go	2022-12-08 18:51:47

#	User	Length	Language	Date
1	Rudy Matela	61	Haskell	2023-09-16 13:31:32
2	Steinar Simonnes	101	Haskell	2024-07-18 13:49:18
3	Simon Marechal	123	Haskell	2016-11-15 13:46:37
4	Leslie Yip	150	Haskell	2022-09-22 11:57:33
5	Aurélien Pepin	153	Haskell	2019-09-19 17:21:08
6	Anthony Clark	166	Haskell	2017-04-19 06:27:39
7	Hidden user	171	Haskell	2021-06-25 17:55:34
8	Blake Hyde	201	Haskell	2017-08-22 04:32:17
9	Patrik Lilja	203	Haskell	2017-04-01 16:01:44
10	Esben Bjerre	212	Haskell	2018-10-15 14:44:22

#	User	Length	Language	Date
1	Mitch Price	223	Java	2016-10-23 21:41:12
2	Erich Wu	231	Java	2016-10-25 22:37:54
3	Felix Burie	242	Java	2016-12-05 00:10:21
4	Doug Goodman	242	Java	2017-09-30 00:09:29
5	Joy Choi	243	Java	2016-10-23 19:15:12
6	Alex Huang	253	Java	2020-04-14 05:28:52
7	Eric Leow Yu Quan	259	Java	2020-12-27 14:21:30
8	Lorene Uy	274	Java	2021-03-12 12:23:32
9	Hannes Bredberg	275	Java	2017-10-09 16:16:53
10	Ada Clevinger	275	Java	2018-06-12 18:48:34

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	17615	JavaScript (SpiderMonkey)	2016-10-20 00:52:43

#	User	Length	Language	Date
1	Noszály Csaba	87	Julia	2025-03-16 07:12:27
2	Timothy Gaede	122	Julia	2024-06-26 01:51:52

#	User	Length	Language	Date
1	Phường Lên	78	Kotlin	2019-11-01 05:56:32
2	Kelly Dance	79	Kotlin	2022-10-13 17:34:15
3	Jacob Huebner	158	Kotlin	2022-02-16 01:06:33
4	Adam Koprowski	212	Kotlin	2021-03-20 18:06:02
5	Dayan Ruben Gonzalez	242	Kotlin	2020-09-27 23:03:14
6	Adam Rankin	270	Kotlin	2023-05-07 19:48:29
7	Hidden user	390	Kotlin	2021-05-04 10:51:53

#	User	Length	Language	Date
1	Zeheng Li	66	Lua	2023-12-04 22:39:03
2	Shehab Ahmed Hatem	160	Lua	2023-11-14 17:53:25

#	User	Length	Language	Date
1	Ingemar Ragnemalm	104	Pascal	2018-09-21 11:13:15

#	User	Length	Language	Date
1	Chenzhang Hu	6	Perl	2025-09-24 14:26:15
2	Thomas Feld	6	Perl	2025-10-01 14:24:06

#	User	Length	Language	Date
1	Renate	137	PHP	2024-04-10 22:44:38
2	Susanne Ragnemalm	2474	PHP	2018-10-02 03:08:46

#	User	Length	Language	Date
1	Andriy Zyevakov	159	Prolog	2018-12-06 11:12:14

#	User	Length	Language	Date
1	Nino Bašić	30	Python 2	2023-01-08 00:40:34
2	Jesper Öqvist	49	Python 2	2018-10-28 18:55:22
3	Matt Bonsall	50	Python 2	2016-10-23 22:14:09
4	Thomas Feld	51	Python 2	2019-09-26 13:54:27
5	Johan Lyts	53	Python 2	2019-12-03 14:51:03
6	Ethan Arnold	66	Python 2	2017-10-22 09:29:12
7	Herbert Ilhan Tanujaya	67	Python 2	2019-03-24 12:26:54
8	Haggai Liu	68	Python 2	2017-06-10 06:09:37
9	Tomas Alvarez	69	Python 2	2016-12-28 00:10:07
10	William Gan	70	Python 2	2018-01-05 08:02:20

#	User	Length	Language	Date
1	Lee Isaac	29	Python 3	2022-11-08 15:33:00
2	Hugo Morvan	29	Python 3	2023-01-26 02:33:17
3	Hidden user	29	Python 3	2023-02-17 19:08:06
4	Josh Henderson	29	Python 3	2023-03-19 23:38:31
5	Guk Yi Siong	29	Python 3	2023-07-23 18:47:04
6	Clement Oh	29	Python 3	2023-08-06 18:23:06
7	Mathis Hammel	29	Python 3	2024-01-19 01:03:48
8	Sander Oppen	31	Python 3	2024-12-18 23:49:58
9	Nicholas Russell Saerang	37	Python 3	2023-08-06 10:41:44
10	Nino Bašić	39	Python 3	2023-01-08 00:11:53

#	User	Length	Language	Date
1	Thomas Feld	20	Ruby	2022-12-07 13:02:10
2	Christian Pilegaard Cederquist	20	Ruby	2023-01-13 00:14:47
3	Gustav Elmqvist	32	Ruby	2023-03-18 02:58:00
4	Hidden user	33	Ruby	2022-12-10 04:57:48
5	Andreas Severin Hauch Trøstrup	35	Ruby	2022-10-02 15:06:51
6	Frederik Spang	37	Ruby	2022-09-30 19:15:00
7	Hidden user	38	Ruby	2021-08-09 18:07:49
8	Hugo Winbladh	45	Ruby	2017-08-16 12:55:03

#	User	Length	Language	Date
1	David Rasch	241	Rust	2022-11-23 14:26:50
2	Bas Dirks	274	Rust	2022-01-18 23:42:07
3	Zac Clifton	391	Rust	2021-10-21 06:00:26
4	Isak Jägberg	1254	Rust	2020-08-15 12:34:55
5	Muhammad Rais Fathin Mudzakir	3792	Rust	2021-05-29 19:23:22

#	User	Length	Language	Date
1	Robert Morelli	552	Zig	11:09:34

Solution running time distribution