Problem O
Riječi — Problem Statistics

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Submissions	8644
Accepted submissions	4798
Submission ratio	55.51%
Authors	4442
Full solves [?]	4194
Full solve Ratio	94.42%

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-09-05 15:47:57
2	Chenzhang Hu	0.06 s	Bash	2023-09-24 14:25:40
3	Thomas Feld	0.06 s	Bash	2023-09-27 07:53:05

#	User	Runtime	Language	Date
1	Joe Amenta	0.01 s	C#	2016-04-04 20:04:27
2	Gustav Kalander	0.01 s	C#	2018-02-03 14:42:36
3	masosz	0.02 s	C#	2015-02-08 14:59:42
4	Teudis Naranjo Ortiz	0.02 s	C#	2015-02-21 14:07:52
5	Bas te Kolste	0.02 s	C#	2015-06-17 21:56:49
6	Lara Kozarski	0.02 s	C#	2015-06-20 07:44:00
7	Charlie Forsberg Hedberg	0.02 s	C#	2015-07-06 13:15:57
8	Mads Storm Hansen	0.02 s	C#	2015-07-12 13:05:22
9	Niklas Huss	0.02 s	C#	2015-07-28 19:06:26
10	grabarz	0.02 s	C#	2015-08-08 21:30:29

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2020-06-21 01:27:44
2	wibi	0.01 s	Common Lisp	2020-09-02 16:54:04

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-07-13 15:30:14
2	Patrick Bahr	0.04 s	F#	2021-02-21 13:21:37
3	Sebastian Sternberg	0.04 s	F#	2021-09-13 16:14:09

#	User	Runtime	Language	Date
1	Krzysztof Gibuła	0.02 s	Go	2019-02-16 11:50:12
2	Bruno Volpato	0.02 s	Go	2020-06-01 19:11:12
3	Zeheng Li	0.02 s	Go	2022-12-30 07:12:02
4	Alejandro Germain	0.07 s	Go	2018-10-10 11:42:06
5	Hidden user	0.07 s	Go	2018-11-01 05:23:58
6	Theo Coyne Morgan	0.07 s	Go	2019-03-26 21:04:17
7	Jonas Hedin	0.08 s	Go	2015-04-01 08:52:24
8	Kellen Watt	0.08 s	Go	2015-09-27 02:14:28
9	Charlie Egan	0.08 s	Go	2015-10-06 20:35:57
10	Adam Evans	0.08 s	Go	2015-10-09 17:20:39

#	User	Runtime	Language	Date
1	Anders Ye	0.05 s	Java	2014-02-20 16:23:33
2	Erik Odenman	0.05 s	Java	2014-02-20 16:25:16
3	Hidden user	0.05 s	Java	2014-03-28 21:08:04
4	Wilbur Yang	0.05 s	Java	2015-04-02 06:24:02
5	Marco Vincenzo Karaan	0.05 s	Java	2015-07-17 10:44:00
6	Nathaniel Lahn	0.05 s	Java	2015-08-10 01:36:22
7	Łukasz Antkowiak	0.05 s	Java	2015-09-11 22:21:15
8	Dennis Ang	0.05 s	Java	2015-09-13 05:59:02
9	Michael Sullivan	0.05 s	Java	2015-09-15 01:46:43
10	Hidden user	0.05 s	Java	2015-09-15 02:38:53

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	JavaScript (Node.js)	2024-10-16 00:24:47
2	simon Lo	0.05 s	JavaScript (Node.js)	2019-03-25 22:29:24
3	Sander Hellesø	0.05 s	JavaScript (Node.js)	2019-04-26 04:58:12
4	Hidden user	0.05 s	JavaScript (Node.js)	2019-07-04 10:54:51
5	Hidden user	0.05 s	JavaScript (Node.js)	2024-08-31 15:53:34
6	John	0.42 s	JavaScript (Node.js)	2020-07-27 05:24:59
7	Hovhannes Kantuni	0.42 s	JavaScript (Node.js)	2020-08-24 01:09:52
8	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-03 03:44:35
9	jcjacky	0.42 s	JavaScript (Node.js)	2020-11-01 16:04:52
10	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2021-01-30 13:21:13

#	User	Runtime	Language	Date
1	Markus Nilssen	0.01 s	JavaScript (SpiderMonkey)	2015-09-19 08:46:55
2	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-17 23:27:50
3	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-01-11 12:09:03
4	Mark Bouchkevitch	0.01 s	JavaScript (SpiderMonkey)	2016-01-22 18:27:05
5	Gabriel Lau	0.01 s	JavaScript (SpiderMonkey)	2016-03-26 04:26:14
6	Timothy Chien	0.01 s	JavaScript (SpiderMonkey)	2016-07-25 02:43:00
7	Frédéric Morel	0.01 s	JavaScript (SpiderMonkey)	2016-10-13 23:37:06
8	J M	0.01 s	JavaScript (SpiderMonkey)	2016-10-28 12:01:19
9	Tor Nordqvist	0.01 s	JavaScript (SpiderMonkey)	2016-11-14 16:01:53
10	Maryna Martynenko	0.01 s	JavaScript (SpiderMonkey)	2017-02-14 11:33:36

#	User	Runtime	Language	Date
1	Timothy Gaede	0.46 s	Julia	2024-04-01 18:19:22

#	User	Runtime	Language	Date
1	Dayan Ruben Gonzalez	0.14 s	Kotlin	2020-09-27 20:43:48
2	Jacob Huebner	0.16 s	Kotlin	2020-03-18 00:14:43
3	Adam Rankin	0.16 s	Kotlin	2023-05-04 19:42:54
4	Dmitry Shostak	0.17 s	Kotlin	2018-08-18 15:24:13
5	Sarek Høverstad Skotåm	0.17 s	Kotlin	2020-10-22 18:44:11
6	Troy Warmboe	0.17 s	Kotlin	2023-04-10 23:50:34
7	Neil Harmon	0.19 s	Kotlin	2019-04-04 07:20:55
8	Phường Lên	0.19 s	Kotlin	2019-11-07 04:04:13
9	Hidden user	0.20 s	Kotlin	2020-04-13 21:32:20
10	Guillaume Bailly	0.20 s	Kotlin	2020-04-16 18:18:24

#	User	Runtime	Language	Date
1	Shehab Ahmed Hatem	0.00 s	Lua	2023-11-14 14:26:17
2	Zeheng Li	0.00 s	Lua	2023-11-20 23:06:40

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Odin	2025-05-06 03:57:34

#	User	Runtime	Language	Date
1	David Connolly	0.00 s	Pascal	2017-08-21 17:07:19
2	Ingemar Ragnemalm	0.00 s	Pascal	2018-01-14 20:47:58
3	Hoang Duong	0.00 s	Pascal	2018-03-29 17:23:54
4	Vova Podkorytov	0.00 s	Pascal	2018-08-05 07:33:02
5	5C24 Ng Shing Cheong 5C24 吳成昌	0.00 s	Pascal	2020-02-07 10:15:39

#	User	Runtime	Language	Date
1	Martin Dibakar Björling	0.01 s	PHP	2015-11-24 19:47:53
2	Silvena Lam	0.01 s	PHP	2016-02-03 11:52:12
3	Steven D. Wilson	0.01 s	PHP	2016-03-25 04:53:14
4	Ali Pandidan	0.01 s	PHP	2016-10-31 18:53:54
5	Mohammed Yousif	0.01 s	PHP	2018-05-03 13:43:01
6	Anderson Palmeira	0.01 s	PHP	2018-05-04 20:08:28
7	Jonas Lindenskov Nielsen	0.01 s	PHP	2019-10-08 12:06:28
8	Renate	0.01 s	PHP	2021-05-18 22:30:08
9	Andre Wahyudi	0.01 s	PHP	2023-03-13 07:33:26

#	User	Runtime	Language	Date
1	Hadi Qovaizi	0.01 s	Prolog	2016-04-22 04:48:44
2	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-06 11:02:16
3	Andriy Zyevakov	0.03 s	Prolog	2017-07-27 21:42:55

#	User	Runtime	Language	Date
1	Paulo Bu	0.02 s	Python 2	2015-02-02 14:01:03
2	Kristmundur Agust	0.02 s	Python 2	2015-03-02 22:00:41
3	Christofer Ohlsson	0.02 s	Python 2	2015-04-02 19:43:55
4	Magnús Þór Benediktsson	0.02 s	Python 2	2015-05-14 15:37:27
5	Kit Maywood	0.02 s	Python 2	2015-06-09 15:30:28
6	Fredrik Carlsen	0.02 s	Python 2	2015-06-17 19:08:15
7	Nicole Hedblom	0.02 s	Python 2	2015-07-13 15:11:26
8	Tore Norderud	0.02 s	Python 2	2015-07-17 22:14:31
9	Snild Dolkow	0.02 s	Python 2	2015-09-12 13:51:28
10	Quan Huynh	0.02 s	Python 2	2015-09-14 11:48:49

#	User	Runtime	Language	Date
1	Axel Demborg	0.02 s	Python 3	2014-03-02 11:49:05
2	Brian Harrington	0.02 s	Python 3	2014-08-24 01:05:27
3	Martin Stensgård	0.02 s	Python 3	2015-03-14 00:58:18
4	Nils Gustafsson	0.02 s	Python 3	2015-03-29 20:28:44
5	James Elías Sigurðarson	0.02 s	Python 3	2015-06-11 13:15:48
6	Johannes Agestam	0.02 s	Python 3	2015-06-14 22:39:06
7	Fredrik Carlsen	0.02 s	Python 3	2015-06-17 19:08:34
8	Tristan van Leeuwen	0.02 s	Python 3	2015-06-19 09:05:10
9	Baldur Tryggvason	0.02 s	Python 3	2015-07-19 22:19:25
10	Casper Hagenaars	0.02 s	Python 3	2015-08-17 10:44:34

#	User	Runtime	Language	Date
1	Jinwoo Lee	0.13 s	Racket	2025-01-31 06:09:42

#	User	Runtime	Language	Date
1	Charlie Egan	0.03 s	Ruby	2015-10-06 20:32:48
2	Gerry Hall	0.03 s	Ruby	2016-03-25 15:18:52
3	Lasse Berglund	0.03 s	Ruby	2016-03-28 13:55:46
4	Erik Rydbert	0.03 s	Ruby	2016-07-06 09:22:07
5	Hidden user	0.03 s	Ruby	2016-08-14 06:53:08
6	Martin Larsson	0.03 s	Ruby	2017-03-04 13:18:43
7	Erik Flood	0.03 s	Ruby	2017-05-13 19:12:17
8	Sonam Tenzin	0.03 s	Ruby	2017-07-10 04:43:39
9	Paul Vinell	0.04 s	Ruby	2018-04-23 10:24:46
10	Lee Tze Han	0.04 s	Ruby	2018-06-17 14:59:17

#	User	Length	Language	Date
1	Chenzhang Hu	41	Bash	2025-09-13 16:10:20
2	Danny Robinson	43	Bash	2023-09-05 15:47:57
3	Thomas Feld	43	Bash	2023-09-27 07:53:05

#	User	Length	Language	Date
1	Martin Blom	69	C	2024-01-31 13:30:39
2	a_b__c	75	C	2021-04-01 15:48:00
3	Alexander Bilde Pedersen	108	C	2023-02-16 21:50:51
4	Chong Tze Yan	118	C	2024-02-01 07:46:21
5	Jonatan Altebro	118	C	2025-02-18 16:05:02
6	Muhammed Ali Aytürk	148	C	2020-03-07 20:45:13
7	Hidden user	155	C	2014-11-01 18:50:46
8	Lawrence Li	157	C	2016-01-12 11:53:51
9	Hidden user	177	C	2016-09-16 11:14:50
10	Tenzin Chophel	184	C	2019-05-10 19:04:39

#	User	Length	Language	Date
1	Victor B	277	C#	2020-04-16 17:13:34
2	Alireza Nasrollahzadeh	311	C#	2018-06-13 21:38:45
3	Kunwei Zhang	317	C#	2018-02-06 04:55:52
4	Anthony Ye	323	C#	2024-01-07 18:49:47
5	Esty Crow	328	C#	2023-12-24 02:15:03
6	Thomas Norris	372	C#	2019-06-20 04:19:18
7	李陆屿	374	C#	2019-05-08 12:15:48
8	Göran Andersson	376	C#	2022-05-10 07:32:27
9	Shaun Lazaro	425	C#	2016-11-27 01:15:40
10	Ben-Richard Ebbesvik	436	C#	2023-12-29 15:33:41

#	User	Length	Language	Date
1	Taylor Rodríguez	98	C++	2025-01-18 19:37:34
2	Tyler Fernando	103	C++	2023-06-01 06:34:12
3	Felix Albrigtsen	122	C++	2018-06-10 07:36:37
4	Kjell Sundhaugen	150	C++	2018-06-10 08:51:34
5	Herman Karlsson	155	C++	2015-04-01 20:00:24
6	Bassam Alfarhan	162	C++	2015-11-08 04:03:39
7	Khawla Hbiech	168	C++	2019-05-09 03:06:17
8	Zhen Xu	169	C++	2017-04-16 15:58:48
9	Nguyễn Công Cường	169	C++	2019-08-03 19:32:50
10	Anathapindika Dravichi	172	C++	2020-12-17 03:13:37

#	User	Length	Language	Date
1	wibi	119	Common Lisp	2020-09-02 16:54:04
2	David Cawthon	362	Common Lisp	2020-06-21 01:27:44

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	266	F#	2022-07-13 15:30:14
2	Sebastian Sternberg	299	F#	2021-09-13 16:14:09
3	Patrick Bahr	1826	F#	2021-02-21 13:21:37

#	User	Length	Language	Date
1	Thomas Mailund	153	Go	2020-11-24 12:25:17
2	Zeheng Li	153	Go	2022-12-30 07:12:02
3	David Zacek	156	Go	2021-05-18 21:56:43
4	Hussein Al Abry	173	Go	2017-02-28 23:20:03
5	Theo Coyne Morgan	183	Go	2019-03-26 21:04:17
6	Wojtek Bednarzak	206	Go	2018-04-30 22:24:07
7	Nyamdavaa Amar	208	Go	2022-04-23 21:52:09
8	Kellen Watt	218	Go	2015-09-27 02:14:28
9	Kellen Watt	218	Go	2016-06-04 20:01:51
10	Jonas Hedin	248	Go	2015-04-01 08:52:24

#	User	Length	Language	Date
1	Christoffer Karlsson	164	Haskell	2017-01-28 19:43:15
2	Joakim Lundborg	167	Haskell	2015-09-03 22:03:50
3	Matthew Johnson	181	Haskell	2017-01-27 06:20:36
4	Brent Yorgey	187	Haskell	2017-10-08 00:09:39
5	Håkon Flatval	195	Haskell	2018-08-16 19:35:57
6	Lars Tveito	202	Haskell	2015-07-27 22:01:19
7	Marcos Barbieri	203	Haskell	2017-03-13 19:17:12
8	Fran Cruz Zamorano	212	Haskell	2017-06-01 14:06:51
9	Bryan Terce	213	Haskell	2020-11-23 08:21:20
10	Johannes Ljung Ekeroth	213	Haskell	2020-12-23 13:18:41

#	User	Length	Language	Date
1	Kinn Beredico	270	Java	2017-12-24 09:15:01
2	Ugyen Thinley	277	Java	2017-03-13 18:24:10
3	Soufian El Yadmani	278	Java	2016-08-07 09:58:09
4	Nanda Thant Sin	286	Java	2018-05-09 08:37:08
5	Nate Alden	287	Java	2020-01-20 02:34:43
6	Suraj Mukhia	288	Java	2018-05-15 07:50:24
7	Sabrina Mori	288	Java	2020-03-18 20:21:13
8	Arjun Sarki	291	Java	2017-03-13 16:06:01
9	Loubna Abbass	291	Java	2017-10-22 20:47:23
10	Era Shehu	297	Java	2020-02-18 19:52:01

#	User	Length	Language	Date
1	simon Lo	330	JavaScript (Node.js)	2019-03-25 22:29:24
2	Hidden user	361	JavaScript (Node.js)	2023-08-07 02:23:42
3	Hovhannes Kantuni	369	JavaScript (Node.js)	2020-08-24 01:09:52
4	jcjacky	389	JavaScript (Node.js)	2020-11-01 16:04:52
5	Hidden user	464	JavaScript (Node.js)	2024-10-16 00:24:47
6	Howard Tin Chi Chan	465	JavaScript (Node.js)	2021-01-30 13:21:13
7	Hidden user	626	JavaScript (Node.js)	2019-07-04 10:54:51
8	Khin Nyunt	724	JavaScript (Node.js)	2021-11-29 10:48:31
9	Sander Hellesø	735	JavaScript (Node.js)	2019-04-26 04:58:12
10	Andoko Chandra	747	JavaScript (Node.js)	2020-10-03 03:44:35

#	User	Length	Language	Date
1	Jimmy Gustafsson	60	JavaScript (SpiderMonkey)	2024-07-09 21:12:44
2	Christian Pilegaard Cederquist	63	JavaScript (SpiderMonkey)	2023-01-01 20:10:09
3	Evan Magill	110	JavaScript (SpiderMonkey)	2024-11-23 01:44:08
4	Tor Nordqvist	133	JavaScript (SpiderMonkey)	2016-11-14 16:01:53
5	Robin Livesey	155	JavaScript (SpiderMonkey)	2018-04-17 12:32:55
6	Tyler VanHaren	174	JavaScript (SpiderMonkey)	2022-06-05 07:43:07
7	Peter Menyes	186	JavaScript (SpiderMonkey)	2017-08-15 20:22:47
8	Mark Bouchkevitch	189	JavaScript (SpiderMonkey)	2016-01-22 18:27:05
9	Peter Kedemo	195	JavaScript (SpiderMonkey)	2015-12-17 23:27:50
10	Spencer Smith	195	JavaScript (SpiderMonkey)	2017-06-09 16:05:47

#	User	Length	Language	Date
1	Timothy Gaede	265	Julia	2024-04-01 18:19:22

#	User	Length	Language	Date
1	Troy Warmboe	187	Kotlin	2023-04-10 23:50:34
2	Dmitry Shostak	250	Kotlin	2018-08-18 15:24:13
3	Dayan Ruben Gonzalez	291	Kotlin	2020-09-27 20:43:48
4	Hidden user	328	Kotlin	2020-04-13 21:32:20
5	Adam Rankin	328	Kotlin	2023-05-04 19:42:54
6	Jacob Huebner	336	Kotlin	2020-03-18 00:14:43
7	Guillaume Bailly	409	Kotlin	2020-04-16 18:18:24
8	Phường Lên	434	Kotlin	2019-11-07 04:04:13
9	Neil Harmon	462	Kotlin	2019-04-04 07:20:55
10	Sarek Høverstad Skotåm	600	Kotlin	2020-10-22 18:44:11

#	User	Length	Language	Date
1	Zeheng Li	73	Lua	2023-11-20 23:06:40
2	Shehab Ahmed Hatem	235	Lua	2023-11-14 14:26:17

#	User	Length	Language	Date
1	Hidden user	433	Odin	2025-05-06 03:57:34

#	User	Length	Language	Date
1	Vova Podkorytov	247	Pascal	2018-08-05 07:33:02
2	5C24 Ng Shing Cheong 5C24 吳成昌	360	Pascal	2020-02-07 10:15:39
3	David Connolly	383	Pascal	2017-08-21 17:07:19
4	Ingemar Ragnemalm	420	Pascal	2018-01-14 20:47:58
5	Hoang Duong	463	Pascal	2018-03-29 17:23:54

#	User	Length	Language	Date
1	Ali Pandidan	154	PHP	2016-10-31 18:53:54
2	Silvena Lam	190	PHP	2016-02-03 11:52:12
3	Steven D. Wilson	193	PHP	2016-03-25 04:53:14
4	Jonas Lindenskov Nielsen	200	PHP	2019-10-08 12:11:04
5	Renate	255	PHP	2021-05-18 22:30:08
6	Anderson Palmeira	296	PHP	2018-05-04 20:08:28
7	Mohammed Yousif	312	PHP	2018-05-03 13:43:01
8	Andre Wahyudi	332	PHP	2023-03-13 07:33:26
9	Martin Dibakar Björling	413	PHP	2015-11-24 19:47:53

#	User	Length	Language	Date
1	Hakan Kjellerstrand	213	Prolog	2023-02-06 17:22:35
2	Andriy Zyevakov	591	Prolog	2017-07-27 21:42:55
3	Hadi Qovaizi	10106	Prolog	2016-04-22 04:48:44

#	User	Length	Language	Date
1	Thomas Feld	62	Python 2	2019-08-19 12:30:47
2	KALAJAYANTHI M	68	Python 2	2025-10-08 16:21:10
3	Eoin Davey	74	Python 2	2018-01-09 16:47:13
4	Nicole Hedblom	75	Python 2	2015-07-13 15:11:26
5	Jesper Öqvist	75	Python 2	2018-10-20 08:48:36
6	Victor Barbarosh	78	Python 2	2016-10-09 18:25:10
7	Marcus Johansson	79	Python 2	2016-09-24 08:11:23
8	Mateusz Drwal	80	Python 2	2018-02-03 14:56:55
9	Daryl Vogel	81	Python 2	2019-03-10 00:33:54
10	Guan Yang Ze	83	Python 2	2019-09-05 10:33:47

#	User	Length	Language	Date
1	Gustav Elmqvist	50	Python 3	2023-02-13 17:36:13
2	Charles Ancheta	50	Python 3	2023-03-28 06:04:07
3	Clement Oh	50	Python 3	2023-05-15 12:02:33
4	Chong Tze Yan	50	Python 3	2024-01-31 20:06:49
5	Nikolaj Munk Binder Jensen	50	Python 3	2025-02-10 20:25:24
6	Joke	50	Python 3	2025-02-18 13:30:58
7	Guk Yi Siong	52	Python 3	2023-06-13 08:29:29
8	Arnaud Vandaele	52	Python 3	2024-03-25 14:41:04
9	Harry Zhang	54	Python 3	2022-12-21 19:10:15
10	Adam Levav	54	Python 3	2023-01-25 00:42:00

#	User	Length	Language	Date
1	Jinwoo Lee	271	Racket	2025-01-31 06:09:42

#	User	Length	Language	Date
1	Thomas Feld	37	Ruby	2023-02-14 10:55:12
2	Gustav Elmqvist	38	Ruby	2023-02-14 00:24:44
3	Alexander Bilde Pedersen	48	Ruby	2023-02-17 02:13:18
4	Frederik Petersen	68	Ruby	2023-02-14 13:32:07
5	Régis Hanol	72	Ruby	2022-01-05 12:48:54
6	Hidden user	79	Ruby	2019-02-25 11:38:57
7	Eugen Neagoe	91	Ruby	2023-05-01 22:32:46
8	Gerry Hall	97	Ruby	2016-03-25 15:18:52
9	Abolfazl Gol	97	Ruby	2018-08-01 07:16:08
10	Charlie Egan	108	Ruby	2015-10-06 20:32:48

#	User	Length	Language	Date
1	Emil Dichmann	268	Rust	2025-09-17 07:43:36
2	Pankajkumar Patro	294	Rust	2024-07-24 20:20:57
3	Andreas Just Petersen	306	Rust	2023-02-14 14:14:30
4	Vincent Lagerros	308	Rust	2025-02-04 18:09:00
5	Thomas	316	Rust	2023-06-20 18:22:05
6	Hidden user	335	Rust	2019-05-04 20:15:09
7	Chaoyi Yin	343	Rust	2019-04-01 15:18:43
8	Joe Blower	349	Rust	2025-06-23 00:16:05
9	Raphaël Baulant	352	Rust	2021-03-08 10:10:30
10	Malthe Mathias Mølgaard Larsen	399	Rust	2023-02-14 10:51:20

Solution running time distribution