Problem A
Weak Vertices — Problem Statistics

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Submissions	11673
Accepted submissions	7034
Submission ratio	60.26%
Authors	5686
Accepted authors	5443
Author ratio	95.73%

#	User	Runtime	Language	Date
1	Duelene Olson	0.02	C#	2016-11-20 04:34:37
2	Firas Al Omary	0.02	C#	2017-03-18 21:07:44
3	Erik Nyström	0.02	C#	2017-09-03 16:32:26
4	Liam Percy	0.02	C#	2018-08-17 20:13:10
5	Amith Kumar Matapady	0.02	C#	2019-02-09 20:58:58
6	Thomas Norris	0.02	C#	2019-09-27 19:56:57
7	Carl Eriksson	0.02	C#	2020-01-15 13:32:03
8	Владимир Хилько	0.02	C#	2022-06-02 16:15:59
9	Esty Crow	0.02	C#	2022-10-16 06:35:06
10	Andriy Zyevakov	0.03	C#	2015-10-21 21:03:20

#	User	Runtime	Language	Date
1	yraten	0.02	Common Lisp	2024-04-18 11:03:04

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.05	F#	2022-06-11 21:20:01
2	Patrick Bahr	0.06	F#	2021-02-20 16:58:40
3	Elias Smedegaard	0.07	F#	2023-11-14 15:11:12

#	User	Runtime	Language	Date
1	Krzysztof Gibuła	0.02	Go	2021-03-26 16:37:49
2	Diego Saldias	0.07	Go	2023-10-28 15:48:14
3	Norbert Voelker	0.08	Go	2021-04-08 22:35:41
4	Chris Vilches	0.1	Go	2021-12-18 12:21:27
5	Jimmy Nejtron	0.13	Go	2023-01-10 15:39:39
6	Hidden user	0.14	Go	2021-12-16 12:08:02
7	Mohamed Ramrami	0.15	Go	2020-05-02 09:18:52
8	Anna Winters	0.18	Go	2016-10-15 07:27:46

#	User	Runtime	Language	Date
1	Matthew Johnson	0	Haskell	2017-02-03 18:33:22
2	Christian Leipe	0.01	Haskell	2019-08-19 22:45:26
3	Hidden user	0.01	Haskell	2019-08-24 17:54:11
4	Scott Dauer	0.01	Haskell	2022-04-02 01:27:36
5	Mansur Ziiatdinov	0.01	Haskell	2023-01-18 08:55:24
6	Johan Liesén	0.01	Haskell	2024-01-28 02:03:19
7	Peter Deal	0.02	Haskell	2016-05-16 15:58:50
8	Brent Yorgey	0.02	Haskell	2020-11-23 00:31:14
9	Jan Hlavacek	0.03	Haskell	2016-11-10 04:51:20
10	Abel Martin	0.03	Haskell	2017-03-26 20:26:27

#	User	Runtime	Language	Date
1	William Brigham	0.06	Java	2017-04-24 04:58:13
2	Clement Oh	0.06	Java	2022-07-21 18:59:47
3	Lee Jia Yi	0.06	Java	2024-03-30 08:13:44
4	Lee Heng Sheng	0.06	Java	2024-05-24 09:13:36
5	Blake Hyde	0.07	Java	2015-10-04 03:33:34
6	William Fiset	0.07	Java	2016-11-25 03:44:13
7	Soo Qi Xuan Ian	0.07	Java	2020-10-22 06:06:11
8	Jay Aljelo Saez Ting	0.07	Java	2020-10-22 10:06:51
9	Sven Rönnbäck	0.07	Java	2021-02-06 01:12:41
10	Joachim Borup	0.07	Java	2021-04-09 19:44:22

#	User	Runtime	Language	Date
1	Hidden user	0.06	JavaScript (Node.js)	2023-11-20 02:08:04
2	Christopher Churchwell	0.06	JavaScript (Node.js)	2023-11-23 16:01:19
3	Gurpartap Singh Bhatti	0.07	JavaScript (Node.js)	2019-03-17 19:40:28
4	Alexander Park	0.13	JavaScript (Node.js)	2023-04-01 09:49:53
5	Lucas Towers	0.43	JavaScript (Node.js)	2020-02-01 08:44:10
6	John	0.43	JavaScript (Node.js)	2020-07-29 12:57:10
7	Khin Nyunt	0.43	JavaScript (Node.js)	2021-12-11 14:01:06
8	Chris Wong	0.44	JavaScript (Node.js)	2021-02-06 00:21:19
9	Andoko Chandra	0.46	JavaScript (Node.js)	2020-10-07 08:51:20

#	User	Runtime	Language	Date
1	Tim Oram	0.01	JavaScript (SpiderMonkey)	2016-03-21 02:28:07
2	Bjørn Chr. Soltvedt	0.01	JavaScript (SpiderMonkey)	2016-10-30 07:46:13
3	Michael Laszlo	0.02	JavaScript (SpiderMonkey)	2016-09-29 16:15:31
4	Spencer Smith	0.02	JavaScript (SpiderMonkey)	2017-06-07 23:49:36
5	Peter Menyes	0.03	JavaScript (SpiderMonkey)	2021-02-09 21:02:01
6	Nicklas Utgaard	0.03	JavaScript (SpiderMonkey)	2021-04-16 22:20:36
7	Jimmy Gustafsson	0.03	JavaScript (SpiderMonkey)	2022-08-15 22:33:38
8	Christian Cederquist	0.03	JavaScript (SpiderMonkey)	2022-11-05 23:08:24
9	Drake Farrokhi	0.04	JavaScript (SpiderMonkey)	2023-11-24 02:56:47
10	Peter Kedemo	0.07	JavaScript (SpiderMonkey)	2016-01-11 07:32:17

#	User	Runtime	Language	Date
1	Timothy Gaede	0.77	Julia	2024-06-02 06:42:28
2	Danny Robinson	0.86	Julia	2023-11-23 08:08:47

#	User	Runtime	Language	Date
1	Adam Rankin	0.26	Kotlin	2023-05-05 06:44:54
2	Hidden user	0.27	Kotlin	2021-04-29 17:53:49
3	Kyle Laker	0.29	Kotlin	2018-02-23 20:24:45
4	Dmitry Shostak	0.29	Kotlin	2020-07-16 09:13:17
5	Christian Komusiewicz	0.31	Kotlin	2020-12-27 21:50:05
6	Dayan Ruben Gonzalez	0.33	Kotlin	2020-09-30 01:09:39
7	Sergey Jakobsen	0.33	Kotlin	2021-11-17 21:43:06
8	Troy Warmboe	0.33	Kotlin	2023-04-10 21:52:25
9	Hidden user	0.39	Kotlin	2020-04-11 23:16:37
10	Deddy Chandra	0.42	Kotlin	2023-04-02 15:09:33

#	User	Runtime	Language	Date
1	Shehab Ahmed Hatem (CoreTiQ.com)	0.01	Lua	2023-11-15 13:49:15

#	User	Runtime	Language	Date
1	Saito Ta	0.04	Perl	2024-03-29 08:08:04

#	User	Runtime	Language	Date
1	Steven D. Wilson	0.01	PHP	2016-11-25 16:37:26
2	Renate	0.02	PHP	2021-06-27 00:47:49

#	User	Runtime	Language	Date
1	Hakan Kjellerstrand	0.24	Prolog	2023-02-22 07:53:49

#	User	Runtime	Language	Date
1	Christian Lindeström	0.02	Python 3	2016-10-21 13:17:26
2	David Brink	0.02	Python 3	2017-02-16 19:19:46
3	Cian Ruane	0.02	Python 3	2017-03-05 20:38:47
4	Evimar Principal de Soto	0.02	Python 3	2017-09-13 22:58:01
5	Wenzhang Qian	0.02	Python 3	2017-10-11 19:05:43
6	Tiffani Slutsky	0.02	Python 3	2017-12-31 00:30:40
7	Cheng Hang	0.02	Python 3	2018-01-22 06:17:20
8	James Lawson	0.02	Python 3	2018-03-11 11:42:58
9	Sergio Vieri	0.02	Python 3	2018-03-30 07:17:21
10	Jakob Israelsen	0.02	Python 3	2019-10-30 15:48:22

#	User	Runtime	Language	Date
1	Erik Rydbert	0.04	Ruby	2016-07-26 10:50:29
2	Sam Henry	0.04	Ruby	2016-10-27 14:52:03
3	Hidden user	0.04	Ruby	2017-05-11 20:51:08
4	John Bowers	0.04	Ruby	2018-02-20 22:41:41
5	Jason Zareski	0.04	Ruby	2018-02-20 23:50:27
6	TobiasZ	0.06	Ruby	2022-01-30 15:14:51
7	David Vinje	0.06	Ruby	2022-07-26 11:51:49
8	Frederik Petersen	0.07	Ruby	2024-04-05 11:33:05
9	Lim Ming Yean	0.21	Ruby	2018-12-07 06:56:25

#	User	Runtime	Language	Date
1	Anton J Olsson	0.09	TypeScript	2023-08-06 18:00:30

#	User	Length	Language	Date
1	Carl Pittenger	217	C	2024-03-31 06:05:28
2	Martin Blom	230	C	2023-10-18 07:39:33
3	Ximun Castoreo	533	C	2020-07-02 15:28:17
4	Matthew Weston	539	C	2021-12-28 16:41:40
5	Anthony Clark	613	C	2017-03-17 19:12:27
6	bun tsai	616	C	2019-11-15 09:30:49
7	Rachel Friederich	635	C	2020-10-24 01:30:17
8	Hamza Chaouki	646	C	2019-11-05 15:24:23
9	Hassan Zekkouri	649	C	2019-11-03 21:28:24
10	Olle Eriksson	705	C	2016-11-29 00:13:32

#	User	Length	Language	Date
1	Mikael Palokangas	490	C#	2023-08-08 01:52:09
2	Christian Ramus	725	C#	2023-04-03 20:07:02
3	Thomas Norris	1054	C#	2019-09-27 19:56:57
4	Ryan Hemmila	1082	C#	2019-09-07 22:04:50
5	Leslie Yip	1156	C#	2022-07-08 14:02:22
6	Göran Andersson	1202	C#	2022-05-08 00:29:46
7	Jesper Lundin	1246	C#	2021-10-02 00:45:42
8	Khin Nyunt	1350	C#	2017-04-09 06:09:26
9	Liam Percy	1381	C#	2018-08-17 20:13:10
10	Natalia Álvarez Del Castillo García	1403	C#	2023-11-29 04:34:14

#	User	Length	Language	Date
1	a_b__c	332	C++	2021-02-26 08:32:07
2	Sunny Nguyen	420	C++	2018-10-04 09:10:21
3	Dustin Ward	439	C++	2022-09-17 19:37:00
4	Arjo Chakravarty	442	C++	2018-04-05 01:53:25
5	Johan Wind	456	C++	2018-03-20 18:53:04
6	Herman Karlsson	464	C++	2016-01-27 23:55:29
7	Elias	464	C++	2021-04-09 16:14:05
8	Muamer Parić	469	C++	2019-04-14 10:35:09
9	Shirui Chen	478	C++	2018-07-19 06:01:53
10	Antonio Molina Lovett	482	C++	2016-08-07 09:51:46

#	User	Length	Language	Date
1	yraten	596	Common Lisp	2024-04-18 11:03:04

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	960	F#	2022-06-11 21:22:21
2	Elias Smedegaard	1060	F#	2023-11-14 15:11:12
3	Patrick Bahr	2353	F#	2021-02-20 16:58:40

#	User	Length	Language	Date
1	Chris Vilches	596	Go	2021-12-20 10:37:52
2	Hidden user	665	Go	2021-12-16 12:08:02
3	Diego Saldias	736	Go	2023-10-28 15:48:14
4	Jimmy Nejtron	1014	Go	2023-01-10 15:39:39
5	Mohamed Ramrami	1052	Go	2020-05-02 09:18:52
6	Krzysztof Gibuła	1160	Go	2021-03-26 16:37:49
7	Norbert Voelker	1274	Go	2021-04-08 22:35:41
8	Anna Winters	1611	Go	2016-10-15 07:27:46

#	User	Length	Language	Date
1	Sebastian Banert	475	Haskell	2023-04-01 00:50:37
2	Johan Liesén	608	Haskell	2024-01-28 02:03:19
3	Tim Put	620	Haskell	2021-11-10 04:10:43
4	Hidden user	631	Haskell	2019-08-24 17:54:11
5	Peter Deal	653	Haskell	2016-05-16 15:58:50
6	Shing Tak Lam	760	Haskell	2021-09-08 19:18:34
7	Håkon Flatval	767	Haskell	2018-09-08 06:46:21
8	Andrés Marzal Varó	980	Haskell	2020-10-11 20:43:02
9	Rudy Matela	1003	Haskell	2024-04-03 13:30:25
10	Jan Hrček	1022	Haskell	2020-10-27 10:53:49

#	User	Length	Language	Date
1	Jeremy Lim	404	Java	2023-10-27 17:16:12
2	Doug Goodman	612	Java	2018-06-13 20:59:34
3	Zac Hays	649	Java	2022-03-22 19:41:46
4	Brennan Cleland	688	Java	2022-09-28 02:43:13
5	Zhang Manman	701	Java	2020-03-27 07:55:50
6	Abdullah Al Rafi Mahmud	709	Java	2022-02-08 20:30:12
7	Violet Tan Zi Xin	725	Java	2020-03-27 03:11:27
8	Anass Filali	727	Java	2016-09-24 23:40:31
9	Hidden user	743	Java	2019-10-21 04:40:11
10	Ryan Looney	750	Java	2018-09-30 06:22:42

#	User	Length	Language	Date
1	Alexander Park	852	JavaScript (Node.js)	2023-04-01 09:49:53
2	Christopher Churchwell	1010	JavaScript (Node.js)	2023-11-23 16:01:19
3	Hidden user	1039	JavaScript (Node.js)	2023-11-20 02:08:04
4	Chris Wong	1206	JavaScript (Node.js)	2021-02-06 00:21:19
5	Lucas Towers	1267	JavaScript (Node.js)	2020-02-01 08:44:10
6	Gurpartap Singh Bhatti	1422	JavaScript (Node.js)	2019-03-17 19:57:13
7	John	1575	JavaScript (Node.js)	2020-07-29 12:57:10
8	Khin Nyunt	1730	JavaScript (Node.js)	2021-12-11 14:01:06
9	Andoko Chandra	1839	JavaScript (Node.js)	2020-10-07 08:51:20

#	User	Length	Language	Date
1	Christian Cederquist	323	JavaScript (SpiderMonkey)	2022-11-05 23:10:40
2	Peter Kedemo	489	JavaScript (SpiderMonkey)	2016-01-11 07:32:17
3	Peter Menyes	688	JavaScript (SpiderMonkey)	2021-02-09 21:02:01
4	Bjørn Chr. Soltvedt	719	JavaScript (SpiderMonkey)	2016-10-30 07:41:49
5	Michael Laszlo	819	JavaScript (SpiderMonkey)	2016-09-29 16:12:55
6	Jimmy Gustafsson	908	JavaScript (SpiderMonkey)	2022-08-15 22:33:38
7	Drake Farrokhi	976	JavaScript (SpiderMonkey)	2023-11-24 02:56:47
8	Tim Oram	998	JavaScript (SpiderMonkey)	2016-03-21 02:28:07
9	Spencer Smith	1024	JavaScript (SpiderMonkey)	2017-06-07 23:49:36
10	Nicklas Utgaard	1148	JavaScript (SpiderMonkey)	2021-04-16 22:20:36

#	User	Length	Language	Date
1	Danny Robinson	284	Julia	2023-11-23 08:08:47
2	Timothy Gaede	1742	Julia	2024-06-02 06:42:28

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	466	Kotlin	2020-09-30 01:09:39
2	Christian Komusiewicz	640	Kotlin	2020-12-27 21:50:05
3	Sergey Jakobsen	764	Kotlin	2021-11-17 21:44:47
4	Adam Rankin	817	Kotlin	2023-05-05 06:44:54
5	Troy Warmboe	830	Kotlin	2023-04-10 21:52:25
6	Dmitry Shostak	857	Kotlin	2020-07-16 09:13:17
7	Deddy Chandra	979	Kotlin	2023-04-02 15:09:33
8	Kyle Laker	1000	Kotlin	2018-02-23 20:24:45
9	Hidden user	1130	Kotlin	2021-04-29 17:53:49
10	Chris Johnson	1386	Kotlin	2023-04-22 09:03:39

#	User	Length	Language	Date
1	Shehab Ahmed Hatem (CoreTiQ.com)	710	Lua	2023-11-15 13:49:15

#	User	Length	Language	Date
1	Saito Ta	316	Perl	2024-03-29 08:08:04

#	User	Length	Language	Date
1	Steven D. Wilson	787	PHP	2016-11-25 16:37:26
2	Renate	1876	PHP	2021-06-27 00:47:49

#	User	Length	Language	Date
1	Hakan Kjellerstrand	701	Prolog	2023-02-22 07:53:49

#	User	Length	Language	Date
1	Thomas Feld	147	Python 3	2023-05-03 13:37:30
2	Guk Yi Siong	162	Python 3	2024-01-08 16:18:40
3	Benjamin Z White	164	Python 3	2023-04-03 20:56:18
4	Jeremy Lim	172	Python 3	2023-10-27 17:49:21
5	Carl Pittenger	172	Python 3	2024-03-31 05:37:37
6	Bjørn Dons	252	Python 3	2018-10-19 01:13:53
7	Marcus Xu	253	Python 3	2021-12-09 19:32:25
8	Tai Tze Kin	257	Python 3	2024-04-19 16:53:34
9	Wouter Dijkstra	281	Python 3	2021-11-27 13:08:52
10	Gerth Stølting Brodal	304	Python 3	2020-02-07 14:44:17

#	User	Length	Language	Date
1	Lim Ming Yean	286	Ruby	2018-12-07 06:56:25
2	Jason Zareski	423	Ruby	2018-02-20 23:50:27
3	John Bowers	443	Ruby	2018-02-20 22:41:41
4	Erik Rydbert	465	Ruby	2016-07-26 10:50:29
5	Frederik Petersen	468	Ruby	2024-04-05 11:33:05
6	Sam Henry	648	Ruby	2016-10-27 14:52:03
7	Hidden user	695	Ruby	2017-05-11 20:51:08
8	David Vinje	744	Ruby	2022-07-26 11:51:49
9	TobiasZ	804	Ruby	2022-01-30 15:14:51

#	User	Length	Language	Date
1	Artur Khuziakhmetov	601	Rust	2023-08-04 07:34:43
2	David Rasch	881	Rust	2020-10-28 09:33:00
3	Simon Grünwald	1139	Rust	2023-07-13 22:39:04
4	Freek van Keulen	1201	Rust	2021-07-13 16:58:06
5	Albert Rise Nielsen	1205	Rust	2020-11-09 15:25:10
6	Henry Jayakusuma	1231	Rust	2020-05-31 07:20:01
7	Samuel Bell	1260	Rust	2023-03-18 16:53:47
8	David Zacek	1275	Rust	2021-04-08 04:08:31
9	Bas Dirks	1293	Rust	2022-01-14 14:37:24
10	Robert Janczewski	1389	Rust	2020-02-05 16:21:30

#	User	Length	Language	Date
1	Anton J Olsson	1258	TypeScript	2023-08-06 18:00:30

Solution running time distribution