Problem A
ICPC Team Selection — Problem Statistics

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Submissions	4690
Accepted submissions	1868
Submission ratio	39.83%
Authors	1738
Full solves [?]	1532
Full solve Ratio	88.15%

#	User	Runtime	Language	Date
1	Nguyễn Tiến Đạt	0.00 s	C	2019-04-26 05:24:46
2	vance	0.00 s	C	2020-03-13 09:01:26
3	William Ball	0.00 s	C	2020-03-17 02:15:27
4	Bergur Snorrason	0.00 s	C	2020-10-19 17:46:01
5	Eyleifur Bjarkason	0.00 s	C	2020-10-19 18:49:10
6	Sambit Palit	0.00 s	C	2020-11-01 23:53:14
7	pengin	0.00 s	C	2021-06-15 13:11:19
8	Jack Gurdin	0.00 s	C	2022-12-01 20:58:10
9	Ivan Petrov	0.06 s	C	2019-05-21 10:15:52

#	User	Runtime	Language	Date
1	Jacob Aufdenberg	0.02 s	C#	2019-05-15 19:02:16
2	Mikael Fiala-Lundström	0.04 s	C#	2021-07-17 17:51:08
3	Lukas P.	0.05 s	C#	2026-03-05 21:50:33

#	User	Runtime	Language	Date
1	Hidden user	0.03 s	Common Lisp	2019-06-28 03:42:01

#	User	Runtime	Language	Date
1	Jonas Mittnacht	0.02 s	Go	2024-01-31 15:04:15
2	Norbert Voelker	0.07 s	Go	2021-08-24 20:57:15
3	Jinwoo Lee	0.10 s	Go	2018-12-25 20:56:37
4	Theo Coyne Morgan	0.10 s	Go	2019-03-28 03:30:29
5	Izhari Ishak Aksa	0.10 s	Go	2021-12-05 16:54:25

#	User	Runtime	Language	Date
1	Brent Yorgey	0.01 s	Haskell	2018-06-11 06:09:09
2	Qi Ji	0.01 s	Haskell	2018-07-10 00:51:40
3	Mason Barnhill	0.01 s	Haskell	2023-04-20 07:13:03
4	Steinar Simonnes	0.01 s	Haskell	2024-10-31 09:01:34

#	User	Runtime	Language	Date
1	Lim Shao Qi	0.06 s	Java	2024-10-20 21:25:53
2	Tarek	0.06 s	Java	2026-03-05 07:37:39
3	Nghi Trương	0.07 s	Java	2017-10-15 14:33:57
4	Nguyễn Minh Tài	0.07 s	Java	2017-10-16 14:34:00
5	Olav Røthe Bakken	0.07 s	Java	2018-03-18 15:04:04
6	Lizhong Wang	0.07 s	Java	2018-04-16 16:34:02
7	Ashu Yadav	0.07 s	Java	2018-07-08 11:00:23
8	Yibo Huang	0.07 s	Java	2020-10-03 19:07:36
9	Rohan Menon	0.07 s	Java	2024-04-12 04:29:29
10	Taras Romanyuk	0.07 s	Java	2024-04-28 21:56:25

#	User	Runtime	Language	Date
1	Karim Dridi	0.06 s	JavaScript (Node.js)	2018-12-24 13:53:43
2	Sander Hellesø	0.06 s	JavaScript (Node.js)	2019-04-25 09:46:24

#	User	Runtime	Language	Date
1	Tuomo Olavi	0.01 s	JavaScript (SpiderMonkey)	2018-03-23 09:46:48
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2018-07-09 03:11:59
3	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-05-29 01:17:28

#	User	Runtime	Language	Date
1	Hidden user	0.37 s	Julia	2025-03-27 21:27:26
2	Timothy Gaede	0.65 s	Julia	2024-07-31 15:36:42

#	User	Runtime	Language	Date
1	Hidden user	0.18 s	Kotlin	2020-02-27 17:42:00
2	Jonathan Soo	0.20 s	Kotlin	2020-03-21 13:41:36
3	Adam Rankin	0.23 s	Kotlin	2023-09-14 21:36:30
4	Phường Lên	0.26 s	Kotlin	2019-11-05 18:18:29

#	User	Runtime	Language	Date
1	Renate Fiala-Lundström	0.01 s	PHP	2021-07-17 16:06:10

#	User	Runtime	Language	Date
1	Prateek Bontha	0.03 s	Python 2	2017-10-20 09:46:35
2	Alex Van Keulen	0.03 s	Python 2	2018-01-31 18:00:41
3	Hidden user	0.03 s	Python 2	2018-05-29 21:26:49
4	Måns Magnusson	0.03 s	Python 2	2018-07-04 18:13:13
5	Hidden user	0.03 s	Python 2	2018-07-04 18:47:14
6	Maj Stenmark	0.03 s	Python 2	2018-07-04 19:41:11
7	Hidden user	0.03 s	Python 2	2018-08-26 23:02:10
8	Lars Åström	0.03 s	Python 2	2018-11-09 15:05:57
9	Björn Magnusson	0.03 s	Python 2	2018-11-09 18:40:47
10	Jesper Öqvist	0.03 s	Python 2	2018-11-11 00:06:32

#	User	Runtime	Language	Date
1	Ciara Godwin	0.02 s	Python 3	2017-12-12 23:50:24
2	Herman Appelgren	0.02 s	Python 3	2017-12-29 19:57:14
3	Ram Basnet	0.02 s	Python 3	2018-01-02 07:06:40
4	Christofer Ohlsson	0.02 s	Python 3	2018-01-27 11:17:25
5	Andre Pratama	0.02 s	Python 3	2018-02-02 14:20:01
6	Cian Ruane	0.02 s	Python 3	2018-03-28 12:05:40
7	Mikkel Gaba	0.02 s	Python 3	2018-04-06 22:11:21
8	Daniel Mina	0.02 s	Python 3	2018-04-12 05:35:36
9	Ziyang Zhang	0.02 s	Python 3	2018-04-16 19:48:59
10	Oscar Lundsröm	0.02 s	Python 3	2018-04-18 09:37:36

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-02-09 10:54:57

#	User	Runtime	Language	Date
1	David Rasch	0.00 s	Rust	2020-11-20 10:11:04
2	Bas Dirks	0.00 s	Rust	2022-01-24 13:45:26
3	Hidden user	0.00 s	Rust	2022-12-07 20:49:40
4	Vincent Lagerros	0.00 s	Rust	2024-10-03 14:33:59

#	User	Length	Language	Date
1	pengin	478	C	2021-06-15 13:11:19
2	Jack Gurdin	582	C	2023-11-17 17:35:36
3	William Ball	780	C	2020-03-17 02:15:27
4	Nguyễn Tiến Đạt	808	C	2019-04-26 05:24:46
5	vance	1068	C	2020-03-13 09:01:26
6	Ivan Petrov	1456	C	2019-05-21 10:15:52
7	Sambit Palit	1492	C	2020-11-01 23:53:14
8	Bergur Snorrason	1707	C	2020-10-19 17:46:01
9	Eyleifur Bjarkason	7360	C	2020-10-19 18:49:10

#	User	Length	Language	Date
1	Lukas P.	604	C#	2026-03-05 21:50:33
2	Jacob Aufdenberg	1629	C#	2019-05-15 19:02:16
3	Mikael Fiala-Lundström	2624	C#	2021-07-17 17:51:08

#	User	Length	Language	Date
1	Sven Rönnbäck	241	C++	2025-09-06 16:35:16
2	Farzan Akhtar Fakhir	242	C++	2025-07-21 04:13:07
3	Sơn Đặng Tiến	281	C++	2017-10-15 15:00:43
4	Khoi Phan Dinh	285	C++	2019-11-19 15:59:02
5	吳宗達	288	C++	2017-10-25 12:15:45
6	Niklas Vatn	289	C++	2020-07-20 20:08:47
7	Yeung Man Tsung	296	C++	2022-12-31 17:12:12
8	Doni Amri Silaban	301	C++	2025-07-22 03:20:40
9	Hidden user	302	C++	2020-03-20 22:27:54
10	Markus Mathiasen	304	C++	2022-08-09 13:54:09

#	User	Length	Language	Date
1	Hidden user	404	Common Lisp	2019-06-28 03:42:01

#	User	Length	Language	Date
1	Theo Coyne Morgan	378	Go	2019-03-28 03:30:29
2	Izhari Ishak Aksa	440	Go	2021-12-05 16:54:25
3	Jonas Mittnacht	463	Go	2024-01-31 15:04:15
4	Jinwoo Lee	626	Go	2018-12-25 20:56:37
5	Norbert Voelker	697	Go	2021-08-24 20:57:15

#	User	Length	Language	Date
1	Qi Ji	385	Haskell	2018-07-10 00:51:40
2	Mason Barnhill	543	Haskell	2023-04-20 07:13:03
3	Steinar Simonnes	839	Haskell	2024-10-31 09:02:18
4	Brent Yorgey	1440	Haskell	2018-06-11 06:09:09

#	User	Length	Language	Date
1	Doug Goodman	449	Java	2018-01-02 20:57:46
2	Xuehui Chen	465	Java	2018-05-10 16:59:55
3	LegendofSSJ	468	Java	2018-03-05 20:48:29
4	Natalie Longtin	491	Java	2018-03-05 20:30:49
5	Duncan Page	513	Java	2019-09-06 04:52:10
6	Meghan Lin	517	Java	2018-03-05 21:38:36
7	Dylan Lyon	517	Java	2018-11-03 16:24:37
8	Eric Leow Yu Quan	523	Java	2021-01-04 12:19:45
9	Astrid Wimmer	533	Java	2020-03-26 17:36:01
10	Daniel West	545	Java	2018-03-05 20:27:04

#	User	Length	Language	Date
1	Sander Hellesø	732	JavaScript (Node.js)	2019-04-25 09:46:24
2	Karim Dridi	1380	JavaScript (Node.js)	2018-12-24 14:08:09

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	247	JavaScript (SpiderMonkey)	2023-05-29 01:17:28
2	Bjørn Chr. Soltvedt	251	JavaScript (SpiderMonkey)	2018-07-09 03:11:59
3	Tuomo Olavi	284	JavaScript (SpiderMonkey)	2018-03-23 09:46:48

#	User	Length	Language	Date
1	Hidden user	95	Julia	2025-03-27 21:32:49
2	Timothy Gaede	356	Julia	2024-07-31 15:36:42

#	User	Length	Language	Date
1	Adam Rankin	467	Kotlin	2023-09-14 21:36:30
2	Phường Lên	637	Kotlin	2019-11-05 18:18:29
3	Hidden user	828	Kotlin	2020-02-27 17:42:00
4	Jonathan Soo	3476	Kotlin	2020-03-21 13:41:36

#	User	Length	Language	Date
1	Renate Fiala-Lundström	487	PHP	2021-07-17 16:06:10

#	User	Length	Language	Date
1	Thomas Feld	123	Python 2	2019-09-27 11:48:12
2	Andreas Björklund	161	Python 2	2021-04-12 17:37:34
3	Maj Stenmark	191	Python 2	2018-07-04 19:41:11
4	Herbert Ilhan Tanujaya	192	Python 2	2019-05-04 04:37:20
5	Jesper Öqvist	195	Python 2	2018-11-11 00:06:32
6	Justin Su	205	Python 2	2019-05-15 01:27:21
7	Alex Van Keulen	209	Python 2	2018-01-31 18:00:41
8	Guan Yang Ze	210	Python 2	2019-09-27 15:24:29
9	Hidden user	211	Python 2	2018-05-29 21:26:49
10	Lars Åström	213	Python 2	2018-11-09 15:05:57

#	User	Length	Language	Date
1	Josh Thoo Jen Sen	89	Python 3	2025-01-16 14:51:37
2	David Llorens	90	Python 3	2024-10-29 10:09:44
3	Clement Oh	93	Python 3	2023-08-10 18:13:01
4	Benjamin Z White	94	Python 3	2023-04-13 23:03:10
5	Sacha De Mulder	96	Python 3	2026-01-21 16:14:58
6	Farzam Abrishami	97	Python 3	2025-09-28 21:53:01
7	Nicholas Russell Saerang	120	Python 3	2023-06-24 14:11:38
8	Rafael Kristoforus Yanto	121	Python 3	2025-02-21 11:20:25
9	Shashank Bhatt	126	Python 3	2023-07-30 02:11:31
10	Suus Brommer	126	Python 3	2025-05-22 21:38:39

#	User	Length	Language	Date
1	Thomas Feld	56	Ruby	2023-02-09 10:55:12

#	User	Length	Language	Date
1	David Rasch	618	Rust	2020-11-20 10:11:04
2	Bas Dirks	743	Rust	2022-01-24 13:45:26
3	Hidden user	788	Rust	2022-12-07 20:49:40
4	Vincent Lagerros	22180	Rust	2024-10-03 14:33:59

Solution running time distribution