Problem A
Natjecanje — Problem Statistics

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Submissions	5377
Accepted submissions	2299
Submission ratio	42.76%
Authors	1984
Full solves [?]	1817
Full solve Ratio	91.58%

#	User	Runtime	Language	Date
1	masosz	0.02 s	C#	2015-02-01 20:23:10
2	Андрей Титов	0.02 s	C#	2016-01-18 09:16:47
3	Raja Sanjeev Kumar Nakka	0.02 s	C#	2016-06-27 19:23:44
4	Jonathan Walker	0.02 s	C#	2016-10-10 22:57:40
5	Duelene Olson	0.02 s	C#	2016-10-11 14:39:47
6	Tilen	0.02 s	C#	2016-11-28 16:16:06
7	Viktor Máni Mönster	0.02 s	C#	2018-07-28 23:07:46
8	Matilda V Mjd	0.02 s	C#	2018-09-24 17:02:34
9	Frankie Chen	0.02 s	C#	2019-07-09 20:06:18
10	Nils Lenart	0.02 s	C#	2020-03-14 15:36:22

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2023-01-16 16:21:39

#	User	Runtime	Language	Date
1	Torbjørn Eikli Smørgrav	0.08 s	Go	2015-04-07 15:48:20
2	Việt Hà Nguyễn	0.08 s	Go	2016-07-01 16:16:29
3	Norbert Voelker	0.08 s	Go	2021-07-12 00:29:05

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2015-01-30 13:23:55
2	Markus Läll	0.00 s	Haskell	2015-02-22 13:35:20
3	Matthew Johnson	0.00 s	Haskell	2017-02-25 16:55:55
4	Steinar Simonnes	0.00 s	Haskell	2024-04-05 13:07:46
5	Jan Hrček	0.00 s	Haskell	2024-12-19 13:41:44
6	Mattias Aronsson Adler	0.01 s	Haskell	2018-07-10 17:51:45
7	Hidden user	0.01 s	Haskell	2019-11-04 16:11:01

#	User	Runtime	Language	Date
1	Akhila Madhamshetti	0.04 s	Java	2024-08-29 18:38:02
2	Thanh Nhan Nguyen	0.04 s	Java	2024-11-12 22:56:26
3	hưng Nguyễn	0.04 s	Java	2024-11-13 10:57:12
4	Phu Nguyen Xuan	0.04 s	Java	2024-11-13 14:59:36
5	Hidden user	0.04 s	Java	2024-11-13 18:05:09
6	Phuc Tan Hien Tran	0.04 s	Java	2024-11-14 15:07:16
7	Quynh Huynh Thi Kim	0.04 s	Java	2024-11-15 01:01:50
8	Hai Long	0.04 s	Java	2024-11-15 22:41:26
9	Pham Minh Tuan Bui	0.04 s	Java	2024-11-18 12:38:49
10	James H. Tran	0.04 s	Java	2024-11-19 06:30:32

#	User	Runtime	Language	Date
1	Francisco Pérez Sammartino	0.09 s	JavaScript (Node.js)	2023-06-28 21:38:38
2	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2021-02-06 12:51:38

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-02-20 13:23:38
2	Hà Minh Ngọc	0.01 s	JavaScript (SpiderMonkey)	2016-08-09 07:28:41
3	Paul Leung	0.01 s	JavaScript (SpiderMonkey)	2017-02-24 21:25:16
4	Nguyễn Hùng Cường	0.01 s	JavaScript (SpiderMonkey)	2018-07-22 18:12:38
5	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-02-13 08:15:05
6	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-06-21 01:05:34
7	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-08-01 23:17:15

#	User	Runtime	Language	Date
1	Timothy Gaede	0.61 s	Julia	2024-06-16 09:09:07

#	User	Runtime	Language	Date
1	Phường Lên	0.18 s	Kotlin	2019-10-30 05:51:16
2	Adam Rankin	0.18 s	Kotlin	2023-05-09 01:12:30
3	Isaac Owomugisha	0.19 s	Kotlin	2020-09-06 20:31:47
4	Ali M. Nekoh	0.22 s	Kotlin	2025-05-22 11:37:51

#	User	Runtime	Language	Date
1	Joe Walbran	0.00 s	OCaml	2019-10-24 23:01:48

#	User	Runtime	Language	Date
1	Jonas Kylling	0.02 s	Python 2	2015-03-22 17:33:05
2	Christofer Ohlsson	0.02 s	Python 2	2015-05-08 21:51:57
3	Amarveer Singh	0.02 s	Python 2	2015-08-13 14:50:43
4	Hans Rusten	0.02 s	Python 2	2015-11-24 01:42:25
5	Nguyễn Đức Mạnh	0.02 s	Python 2	2016-10-03 09:29:28
6	Hòa Nguyễn	0.02 s	Python 2	2016-10-10 09:46:31
7	Frederik Højholt	0.02 s	Python 2	2016-11-15 18:36:30
8	Justin Su	0.02 s	Python 2	2017-09-24 23:02:25
9	Lars Åström	0.02 s	Python 2	2018-06-26 22:37:17
10	Hidden user	0.02 s	Python 2	2018-07-01 20:22:57

#	User	Runtime	Language	Date
1	Hlynur “Glitch” Óskar Guðmundsson	0.02 s	Python 3	2015-03-04 10:59:02
2	Martin Stensgård	0.02 s	Python 3	2015-03-24 23:31:58
3	Ana Drenik	0.02 s	Python 3	2015-08-16 19:51:00
4	John Harrison	0.02 s	Python 3	2015-10-09 02:49:46
5	Wayne	0.02 s	Python 3	2016-03-30 18:00:19
6	Hidden user	0.02 s	Python 3	2016-08-20 16:18:30
7	vance	0.02 s	Python 3	2017-03-07 12:19:59
8	Ram Basnet	0.02 s	Python 3	2017-04-13 02:47:58
9	Cian Ruane	0.02 s	Python 3	2017-05-29 11:26:22
10	Martin Jackson	0.02 s	Python 3	2017-05-31 19:59:19

#	User	Runtime	Language	Date
1	Emmanuel Proulx	0.05 s	Ruby	2022-03-10 17:03:13
2	Thomas Feld	0.06 s	Ruby	2023-05-02 11:03:03

#	User	Length	Language	Date
1	Phan Ngoc Lan	467	C	2016-06-30 12:29:21
2	Alberto Sandri	547	C	2021-03-22 22:20:17
3	Thibault Raffaillac	572	C	2018-08-29 14:00:30
4	Hidden user	589	C	2014-11-19 22:43:59
5	Andrew Roberts	647	C	2017-09-24 00:30:44
6	Noah Ó Donnaile	649	C	2016-11-23 01:09:50
7	Chris Xinyu Li	686	C	2019-09-07 04:44:02
8	Leo Hall	736	C	2021-07-11 22:10:40
9	Grayce Zhu	741	C	2018-12-06 01:03:03
10	Hidden user	988	C	2017-12-06 01:15:33

#	User	Length	Language	Date
1	traxex	684	C#	2024-06-03 13:31:13
2	Benjamin Applegate	786	C#	2023-08-30 22:53:14
3	Michael Damsgaard	878	C#	2024-12-08 07:11:18
4	Frankie Chen	1168	C#	2019-07-09 20:06:18
5	Viktor Máni Mönster	1468	C#	2018-07-28 23:07:46
6	Zach Champeau	1631	C#	2023-08-30 00:53:57
7	Mikael Fiala-Lundström	1672	C#	2021-07-01 01:36:56
8	Per Eriksson	1708	C#	2021-07-11 22:15:04
9	Raja Sanjeev Kumar Nakka	1939	C#	2016-06-27 19:23:44
10	Jonathan Walker	2124	C#	2016-10-10 22:57:40

#	User	Length	Language	Date
1	Frans Meulenbroeks	266	C++	2025-02-16 22:39:35
2	Jonathan Ibrahim	319	C++	2020-10-15 23:11:33
3	Said Lakhfif	394	C++	2016-11-18 17:08:16
4	Ritchie Goldwin	422	C++	2019-06-02 19:50:16
5	Tran Huu Tri	424	C++	2015-10-08 10:05:34
6	Giahuy Pham	424	C++	2019-11-02 09:11:26
7	Antonio Molina Lovett	430	C++	2016-08-10 10:28:45
8	rabbitdit	442	C++	2024-10-16 07:16:52
9	Chise Hatori	445	C++	2024-11-13 00:12:55
10	Lê Xuân Trung	448	C++	2016-10-08 20:15:43

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1101	F#	2023-01-16 16:21:39

#	User	Length	Language	Date
1	Torbjørn Eikli Smørgrav	861	Go	2015-04-07 15:48:20
2	Norbert Voelker	1017	Go	2021-07-12 00:29:05
3	Việt Hà Nguyễn	1101	Go	2016-07-01 16:16:29

#	User	Length	Language	Date
1	Jan Hrček	276	Haskell	2024-12-19 13:41:44
2	Matthew Johnson	623	Haskell	2017-02-25 16:55:55
3	Mattias Aronsson Adler	972	Haskell	2018-07-10 17:51:45
4	Markus Läll	1626	Haskell	2015-02-22 13:35:20
5	Steinar Simonnes	2058	Haskell	2024-04-05 13:07:46
6	Hidden user	2530	Haskell	2015-01-30 13:23:55
7	Hidden user	11513	Haskell	2019-11-04 16:11:01

#	User	Length	Language	Date
1	Wayne Nolen	624	Java	2015-10-09 01:48:34
2	Kibae Kim	672	Java	2018-03-22 19:51:22
3	Lucy Reynolds	679	Java	2015-10-09 02:18:23
4	Bui Xuan Tuyet Son	709	Java	2021-05-06 15:30:16
5	Anh Nguyen	728	Java	2019-11-19 21:56:58
6	BluE Grand	736	Java	2019-12-12 01:13:58
7	Leela Mohan	752	Java	2024-06-19 08:59:57
8	Partha reddy	753	Java	2024-06-19 09:03:04
9	Benjamin Laurence Erickson	757	Java	2016-10-06 03:43:38
10	Luke Witt	758	Java	2017-10-06 02:31:01

#	User	Length	Language	Date
1	Howard Tin Chi Chan	803	JavaScript (Node.js)	2021-02-06 12:51:38
2	Francisco Pérez Sammartino	2110	JavaScript (Node.js)	2023-06-28 21:38:38

#	User	Length	Language	Date
1	Jimmy Gustafsson	259	JavaScript (SpiderMonkey)	2024-08-01 23:17:39
2	Christian Pilegaard Cederquist	467	JavaScript (SpiderMonkey)	2023-02-13 08:15:05
3	Nguyễn Hùng Cường	619	JavaScript (SpiderMonkey)	2018-07-22 18:12:38
4	Bjørn Chr. Soltvedt	676	JavaScript (SpiderMonkey)	2016-02-20 13:23:38
5	Paul Leung	678	JavaScript (SpiderMonkey)	2017-02-24 21:25:16
6	Hà Minh Ngọc	997	JavaScript (SpiderMonkey)	2016-08-09 07:28:41
7	Zach Tschetter	1154	JavaScript (SpiderMonkey)	2023-06-21 01:05:34

#	User	Length	Language	Date
1	Timothy Gaede	828	Julia	2024-06-16 09:09:07

#	User	Length	Language	Date
1	Adam Rankin	477	Kotlin	2023-05-09 01:12:30
2	Isaac Owomugisha	614	Kotlin	2020-09-06 20:31:47
3	Ali M. Nekoh	734	Kotlin	2025-05-22 11:37:51
4	Phường Lên	1045	Kotlin	2019-10-30 05:51:16

#	User	Length	Language	Date
1	Joe Walbran	2577	OCaml	2019-10-24 23:01:48

#	User	Length	Language	Date
1	Andreas Björklund	248	Python 2	2019-09-19 22:30:06
2	Thomas Feld	313	Python 2	2019-11-07 11:02:58
3	Asger Hautop Drewsen	315	Python 2	2015-11-04 16:59:26
4	Yanmarshus Bachtiar	376	Python 2	2020-11-01 13:01:53
5	Jonas Kylling	384	Python 2	2015-03-22 17:33:05
6	Hans Rusten	406	Python 2	2015-11-24 01:42:25
7	Jesper Öqvist	438	Python 2	2018-11-04 00:06:53
8	Justin Su	452	Python 2	2017-09-24 23:02:25
9	Hòa Nguyễn	466	Python 2	2016-10-10 09:46:31
10	Lars Åström	489	Python 2	2018-06-26 22:37:17

#	User	Length	Language	Date
1	Christian Blumenthal	104	Python 3	2024-09-13 02:19:45
2	Benjamin Z White	154	Python 3	2023-04-10 22:20:55
3	Michael Goldwasser	156	Python 3	2025-09-08 06:32:23
4	Hlynur “Glitch” Óskar Guðmundsson	190	Python 3	2015-03-04 10:59:02
5	Seyed Mohammad Seyedi	194	Python 3	2025-05-19 19:07:24
6	Timothy Baeckelant	224	Python 3	2024-12-23 23:13:53
7	blin	228	Python 3	2025-09-23 06:40:27
8	Victor Elmir Verchkovski	231	Python 3	2019-01-20 16:20:14
9	Yuxing Chen	237	Python 3	2023-09-27 01:19:42
10	Steven Truong	246	Python 3	2023-09-24 11:52:30

#	User	Length	Language	Date
1	Thomas Feld	119	Ruby	2023-05-02 11:49:13
2	Emmanuel Proulx	1459	Ruby	2022-03-10 17:03:13

#	User	Length	Language	Date
1	Pankajkumar Patro	705	Rust	2024-12-16 00:54:10
2	Bas Dirks	776	Rust	2022-01-12 11:46:49
3	Vincent Lagerros	799	Rust	2025-06-03 00:32:13
4	David Rasch	877	Rust	2023-11-01 14:57:23
5	Greg Gorlen	958	Rust	2022-09-19 23:45:51
6	Akke Mei Vleerlaag	1807	Rust	2024-08-16 14:41:42
7	Krish Lal	1926	Rust	2025-09-18 06:13:12
8	Isak Jägberg	2009	Rust	2024-11-04 13:51:08
9	Logan Travis	2859	Rust	2025-09-20 07:12:18
10	Pahlevi Fikri Auliya	2922	Rust	2021-03-13 01:08:35

Solution running time distribution