Problem A
WERTYU — Problem Statistics

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Submissions	6818
Accepted submissions	1801
Submission ratio	26.42%
Authors	1745
Accepted authors	1497
Author ratio	85.79%

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-10-12 23:08:00

#	User	Runtime	Language	Date
1	masosz	0.01 s	C#	2015-03-26 21:30:37
2	Peter Thorsen	0.01 s	C#	2016-04-30 14:24:25
3	Saša Levstik	0.01 s	C#	2016-11-25 10:13:59
4	Mads Storm Hansen	0.02 s	C#	2015-07-20 20:51:33
5	Pontus Magnusson	0.02 s	C#	2016-05-19 11:44:50
6	Khin Nyunt	0.02 s	C#	2016-05-22 17:06:21
7	Sampath Kumar	0.02 s	C#	2016-09-14 21:37:22
8	Duelene Olson	0.02 s	C#	2016-09-29 03:12:57
9	Ugnius Skučas	0.02 s	C#	2016-10-07 10:59:34
10	Rasmus Brants	0.02 s	C#	2017-05-26 13:36:08

#	User	Runtime	Language	Date
1	David Cawthon	0.02 s	Common Lisp	2019-05-19 03:10:26

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.05 s	F#	2023-06-08 18:19:50

#	User	Runtime	Language	Date
1	Khin Nyunt	0.00 s	Go	2023-09-14 06:45:30
2	Hidden user	0.00 s	Go	2023-11-04 09:07:40
3	Hidden user	0.00 s	Go	2023-11-04 09:08:14
4	Pandhu Hutomo Aditya	0.00 s	Go	2023-11-04 14:07:53
5	Hidden user	0.00 s	Go	2023-11-04 19:07:01
6	Ardian Ferdianto	0.00 s	Go	2023-11-07 08:53:40
7	Husain Satan	0.00 s	Go	2023-11-07 10:22:30
8	Fikri Basa	0.00 s	Go	2023-11-07 11:20:29
9	Muhammad Abdis	0.00 s	Go	2023-11-08 06:04:28
10	Jinwoo Lee	0.01 s	Go	2018-12-26 03:01:10

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2025-01-21 11:02:19
2	Issa Issack	0.04 s	Java	2025-02-13 05:42:00
3	Nikita Semõnin	0.04 s	Java	2025-05-08 17:31:56
4	Kshitij Agarwal	0.04 s	Java	2025-05-12 01:29:37
5	Erik Odenman	0.05 s	Java	2012-09-09 12:28:53
6	Simon Klein	0.05 s	Java	2012-09-09 12:39:09
7	Aron Granberg	0.05 s	Java	2012-09-09 12:54:19
8	Per Odlo	0.05 s	Java	2015-04-18 12:29:42
9	Ive Xu	0.05 s	Java	2015-09-03 17:20:17
10	Nick Wu	0.05 s	Java	2015-11-28 06:01:17

#	User	Runtime	Language	Date
1	Mentor Shabani	0.04 s	JavaScript (Node.js)	2025-05-09 14:16:29
2	Karim Dridi	0.05 s	JavaScript (Node.js)	2018-12-24 14:37:45
3	Sander Hellesø	0.05 s	JavaScript (Node.js)	2019-04-21 00:30:18
4	Chase Brown	0.42 s	JavaScript (Node.js)	2021-02-26 22:56:15
5	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-12-11 14:38:23

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-01-01 09:32:09
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-03-06 16:04:04
3	J M	0.01 s	JavaScript (SpiderMonkey)	2016-10-07 22:08:52
4	Ionel Hindorean	0.01 s	JavaScript (SpiderMonkey)	2016-11-12 12:56:23
5	Andri Rafn	0.01 s	JavaScript (SpiderMonkey)	2018-04-22 19:44:53
6	Omar Al-Khashab	0.01 s	JavaScript (SpiderMonkey)	2018-04-25 06:31:49
7	Leonard Kalema	0.01 s	JavaScript (SpiderMonkey)	2018-05-18 10:15:22
8	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-05-01 14:15:34
9	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-06-16 04:02:16

#	User	Runtime	Language	Date
1	Timothy Gaede	0.48 s	Julia	2024-04-27 09:30:41

#	User	Runtime	Language	Date
1	Ashish Singh	0.11 s	Kotlin	2023-01-27 07:58:17
2	Johnny Baloney	0.12 s	Kotlin	2021-12-01 13:32:09
3	Dayan Ruben Gonzalez	0.15 s	Kotlin	2020-09-30 19:43:11
4	James WIlliams	0.17 s	Kotlin	2020-09-27 00:06:05
5	Thanh Le	0.18 s	Kotlin	2021-07-06 18:57:39
6	Adam Rankin	0.20 s	Kotlin	2023-09-04 02:55:50
7	Max Holmberg	0.20 s	Kotlin	2023-12-31 12:07:13
8	Ravisai Tiruvuri	0.20 s	Kotlin	2024-03-21 05:40:42
9	Chris Johnson	0.25 s	Kotlin	2024-10-05 02:09:09

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-09-30 13:11:24

#	User	Runtime	Language	Date
1	Connor Billings	0.01 s	PHP	2020-11-02 02:22:59
2	Asim Shrestha	0.01 s	PHP	2021-01-16 01:11:54
3	Rajesh Shrestha	0.01 s	PHP	2021-01-16 02:03:18
4	Saginaw George	0.01 s	PHP	2021-01-17 14:06:28
5	Thomas Marty	0.01 s	PHP	2021-01-24 17:42:53

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2016-02-25 14:37:44
2	Hadi Qovaizi	0.01 s	Prolog	2016-05-03 20:36:16

#	User	Runtime	Language	Date
1	Paulo Bu	0.02 s	Python 2	2015-03-24 12:31:35
2	Tore Norderud	0.02 s	Python 2	2015-04-18 15:06:18
3	Christofer Ohlsson	0.02 s	Python 2	2015-04-20 11:52:04
4	Jaren Ryan M. Rex	0.02 s	Python 2	2015-09-05 21:24:40
5	Asger Hautop Drewsen	0.02 s	Python 2	2015-09-24 04:59:17
6	Jennie Olsson	0.02 s	Python 2	2016-07-13 15:13:12
7	Syafiq Al Atiiq	0.02 s	Python 2	2016-07-18 04:44:06
8	Marko Lazic	0.02 s	Python 2	2016-07-22 12:30:06
9	Hidden user	0.02 s	Python 2	2016-08-01 12:54:39
10	Jonathan Ibanez	0.02 s	Python 2	2017-02-09 22:40:05

#	User	Runtime	Language	Date
1	Daniel Solberg	0.02 s	Python 3	2015-04-18 12:15:49
2	Sondre Tharaldsen	0.02 s	Python 3	2015-04-18 14:36:01
3	James Elías Sigurðarson	0.02 s	Python 3	2015-06-12 15:07:39
4	Ana Drenik	0.02 s	Python 3	2015-08-14 16:46:59
5	Wayne	0.02 s	Python 3	2016-01-25 13:42:07
6	Kent Tsuenchy	0.02 s	Python 3	2016-02-06 20:53:09
7	Rick van Rheenen	0.02 s	Python 3	2016-04-22 20:40:43
8	Magnus Thomé	0.02 s	Python 3	2016-04-28 10:48:06
9	Connor Austin	0.02 s	Python 3	2016-05-25 01:21:48
10	Christian Lindeström	0.02 s	Python 3	2016-08-19 23:35:52

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2016-03-15 15:20:12
2	Joy Cantimbuhan	0.03 s	Ruby	2017-06-07 09:40:38
3	Mridula Prabhu	0.03 s	Ruby	2017-06-11 12:12:07
4	Hidden user	0.04 s	Ruby	2019-02-16 23:50:25
5	Hadi Qovaizi	0.05 s	Ruby	2021-06-29 12:48:40
6	Thomas Feld	0.06 s	Ruby	2023-03-28 13:46:03

#	User	Length	Language	Date
1	Danny Robinson	70	Bash	2023-10-12 23:12:05

#	User	Length	Language	Date
1	Xuehui Chen	242	C	2018-11-05 17:19:37
2	Hidden user	242	C	2021-12-19 15:08:08
3	Thibault Raffaillac	349	C	2017-11-15 19:09:29
4	Sergio Huhuhu	428	C	2018-05-28 01:28:03
5	Joseph	458	C	2023-02-12 11:42:00
6	Phan Ngoc Lan	501	C	2016-08-28 04:57:49
7	Miranda Henry	556	C	2019-09-25 01:31:23
8	Anshul Sharma	646	C	2022-02-04 22:56:53
9	Kevin Surya Pranata	723	C	2018-05-23 05:54:32
10	Rajul Srivastava	725	C	2020-11-10 17:32:42

#	User	Length	Language	Date
1	Armin Krauss	580	C#	2018-11-25 11:15:05
2	Ugnius Skučas	872	C#	2016-10-07 10:59:34
3	Brian Scott	967	C#	2017-09-06 23:48:36
4	Michael Damsgaard	1076	C#	2025-01-05 08:03:44
5	Rasmus Brants	1106	C#	2017-05-26 13:36:08
6	Saša Levstik	1115	C#	2016-11-25 10:13:59
7	Pontus Magnusson	1314	C#	2016-05-19 11:44:50
8	Khin Nyunt	1417	C#	2016-05-22 17:06:21
9	Deci Bel	1721	C#	2025-04-26 18:51:38
10	Viktor Borg	1819	C#	2020-02-01 11:02:01

#	User	Length	Language	Date
1	Frans Meulenbroeks	208	C++	2024-10-22 23:08:44
2	Hidden user	239	C++	2024-01-26 12:22:31
3	Tài Phùng Thế	242	C++	2020-03-11 15:45:41
4	Jesse Case	285	C++	2021-11-23 18:17:55
5	William Gan	297	C++	2017-08-12 16:27:57
6	Simon Lindholm	299	C++	2012-09-09 12:18:58
7	Clement Oh	313	C++	2024-02-17 09:53:13
8	Iswanul Umam	319	C++	2016-03-07 03:34:25
9	Syx Pek	322	C++	2016-02-08 18:20:49
10	李亦陞（s0323010）	328	C++	2024-11-11 04:23:51

#	User	Length	Language	Date
1	David Cawthon	575	Common Lisp	2019-05-19 03:10:26

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	565	F#	2023-06-08 18:19:50

#	User	Length	Language	Date
1	Norbert Voelker	563	Go	2021-09-27 00:43:39
2	Jinwoo Lee	631	Go	2018-12-26 03:01:10
3	Hidden user	711	Go	2023-11-04 19:07:01
4	Ardian Ferdianto	859	Go	2023-11-07 08:53:40
5	Hidden user	894	Go	2023-11-04 09:07:40
6	Muhammad Abdis	895	Go	2023-11-08 06:04:28
7	Hidden user	898	Go	2023-11-04 09:08:14
8	Fikri Basa	904	Go	2023-11-07 11:20:29
9	Cian Kehoe	912	Go	2020-07-01 21:26:33
10	Khin Nyunt	938	Go	2023-09-14 06:45:30

#	User	Length	Language	Date
1	Matthew Craven	187	Haskell	2019-01-01 21:08:27
2	Li Jun	301	Haskell	2023-06-27 13:48:13
3	Qi Ji	321	Haskell	2018-07-23 18:24:04
4	Lars Tveito	325	Haskell	2015-07-27 22:18:38
5	Matthew Gvasalia	347	Haskell	2023-08-03 16:54:33
6	Hidden user	348	Haskell	2014-12-23 00:11:52
7	Jahid Hasan Imon	364	Haskell	2020-09-18 15:03:25
8	Brent Yorgey	415	Haskell	2017-11-27 13:06:16
9	Juan Manuel	561	Haskell	2020-07-15 06:10:54
10	Steinar Simonnes	651	Haskell	2024-10-28 08:37:00

#	User	Length	Language	Date
1	Yin Chun Fung	468	Java	2021-01-28 17:32:21
2	Diana Bishop	500	Java	2018-09-12 18:21:48
3	Lucas Wood	501	Java	2016-06-27 18:25:20
4	Ayoub El Yaquine	518	Java	2016-12-25 20:58:59
5	Tomer Shmul	533	Java	2018-09-27 00:13:10
6	Hidden user	549	Java	2018-03-27 11:52:55
7	Boyuan Xu	556	Java	2019-04-16 02:28:28
8	Ravinder Putta	557	Java	2016-10-03 00:16:53
9	Resa Renaldy	562	Java	2019-04-14 15:50:54
10	Xuehui Chen	568	Java	2018-11-05 17:35:52

#	User	Length	Language	Date
1	Mentor Shabani	823	JavaScript (Node.js)	2025-05-09 14:16:29
2	Khin Nyunt	1064	JavaScript (Node.js)	2021-12-11 14:38:23
3	Chase Brown	1108	JavaScript (Node.js)	2021-02-26 22:56:15
4	Karim Dridi	1591	JavaScript (Node.js)	2018-12-24 14:37:45
5	Sander Hellesø	1593	JavaScript (Node.js)	2019-04-21 00:30:18

#	User	Length	Language	Date
1	Christian Cederquist	277	JavaScript (SpiderMonkey)	2023-05-01 14:15:34
2	Zach Tschetter	303	JavaScript (SpiderMonkey)	2023-06-16 04:02:16
3	Bjørn Chr. Soltvedt	349	JavaScript (SpiderMonkey)	2016-03-06 16:04:04
4	J M	482	JavaScript (SpiderMonkey)	2016-10-07 22:08:52
5	Peter Kedemo	512	JavaScript (SpiderMonkey)	2016-01-01 09:32:09
6	Andri Rafn	693	JavaScript (SpiderMonkey)	2018-04-22 19:44:53
7	Ionel Hindorean	910	JavaScript (SpiderMonkey)	2017-02-26 09:42:03
8	Omar Al-Khashab	1314	JavaScript (SpiderMonkey)	2018-04-25 06:31:49
9	Leonard Kalema	1503	JavaScript (SpiderMonkey)	2018-05-18 10:15:22

#	User	Length	Language	Date
1	Timothy Gaede	374	Julia	2024-04-27 09:30:41

#	User	Length	Language	Date
1	Adam Rankin	489	Kotlin	2023-09-04 02:55:50
2	Chris Johnson	510	Kotlin	2024-10-05 02:09:09
3	Ashish Singh	520	Kotlin	2023-01-27 07:58:17
4	Dayan Ruben Gonzalez	618	Kotlin	2020-09-30 19:43:11
5	Thanh Le	688	Kotlin	2021-07-06 18:57:39
6	Max Holmberg	898	Kotlin	2023-12-31 12:07:13
7	Johnny Baloney	1041	Kotlin	2021-12-01 13:32:09
8	Ravisai Tiruvuri	5097	Kotlin	2024-03-21 05:40:42
9	James WIlliams	5709	Kotlin	2020-09-27 00:06:05

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1733	Pascal	2018-09-30 13:11:24

#	User	Length	Language	Date
1	Asim Shrestha	410	PHP	2021-01-16 01:11:54
2	Rajesh Shrestha	412	PHP	2021-01-16 02:03:18
3	Saginaw George	474	PHP	2021-01-17 14:06:28
4	Thomas Marty	915	PHP	2021-01-24 17:42:53
5	Connor Billings	939	PHP	2020-11-02 02:22:59

#	User	Length	Language	Date
1	Andriy Zyevakov	1685	Prolog	2016-02-25 14:37:44
2	Hadi Qovaizi	2257	Prolog	2020-05-31 21:42:15

#	User	Length	Language	Date
1	Jaren Ryan M. Rex	197	Python 2	2015-09-05 21:24:40
2	Thomas Feld	215	Python 2	2019-09-06 13:22:25
3	Marko Lazic	283	Python 2	2016-07-22 12:30:06
4	Eoin Davey	301	Python 2	2018-03-26 17:06:31
5	Johan Wind	316	Python 2	2018-03-19 02:40:59
6	Asger Hautop Drewsen	322	Python 2	2015-09-24 04:59:17
7	Hermon Mulat	340	Python 2	2018-09-04 18:48:44
8	Haggai Liu	357	Python 2	2017-04-29 08:53:02
9	Muhammad Ilham Hidayat	368	Python 2	2023-11-04 12:01:25
10	Jennie Olsson	371	Python 2	2016-07-13 15:13:12

#	User	Length	Language	Date
1	Clement Oh	121	Python 3	2023-07-23 12:53:01
2	Tai Tze Kin	136	Python 3	2024-05-11 16:02:44
3	Peter Stauder	138	Python 3	2023-03-21 21:05:47
4	Eric Fung	143	Python 3	2025-05-10 20:03:29
5	Ocram Esah	150	Python 3	2022-06-13 22:01:39
6	Hidden user	164	Python 3	2022-12-15 23:22:04
7	Christian Lindeström	167	Python 3	2016-08-19 23:35:52
8	Kaaden RumanCam	169	Python 3	2022-09-18 23:39:57
9	Paco Criado	174	Python 3	2024-03-11 23:24:14
10	Theo Coyne Morgan	177	Python 3	2019-04-08 21:34:27

#	User	Length	Language	Date
1	Thomas Feld	65	Ruby	2023-10-18 07:55:37
2	Casper Christensen	238	Ruby	2016-03-15 15:20:12
3	Hidden user	410	Ruby	2019-02-16 23:50:25
4	Joy Cantimbuhan	468	Ruby	2017-06-07 09:40:38
5	Hadi Qovaizi	705	Ruby	2021-06-29 12:48:40
6	Mridula Prabhu	1038	Ruby	2017-06-11 12:12:07

#	User	Length	Language	Date
1	Vincent Lagerros	614	Rust	2024-10-06 01:33:48
2	jaswanth	671	Rust	2024-03-15 14:28:57
3	Bas Dirks	712	Rust	2022-01-26 13:04:29
4	Anthony Audoin	720	Rust	2021-01-23 16:22:07
5	Loïc CARR	782	Rust	2018-12-18 20:52:32
6	Eric Pinter	1154	Rust	2020-08-03 23:05:04
7	David Rasch	1257	Rust	2020-10-01 15:31:06
8	Isak Jägberg	1293	Rust	2021-01-09 17:35:42
9	Alexandr Last	1329	Rust	2023-09-12 18:30:45
10	Gabriella	1368	Rust	2025-04-23 17:22:11

Solution running time distribution