Problem A
Adjoin the Networks — Problem Statistics

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Submissions	3688
Accepted submissions	877
Submission ratio	23.78%
Authors	815
Accepted authors	620
Author ratio	76.07%

#	User	Runtime	Language	Date
1	Johan Westerlund	0.02 s	C	2015-10-12 10:33:27
2	Andreas Björklund	0.02 s	C	2018-12-06 17:01:54
3	Ivan Petrov	0.02 s	C	2019-07-03 15:10:15
4	Gunnar Kreitz	0.03 s	C	2015-10-10 10:23:20
5	Hidden user	0.68 s	C	2023-11-13 22:46:51

#	User	Runtime	Language	Date
1	Lukas Polacek	0.21 s	C#	2016-11-19 17:57:12
2	Hidden user	0.39 s	C#	2017-10-06 22:59:36

#	User	Runtime	Language	Date
1	Johan Westerlund	0.00 s	C++	2015-10-12 11:04:10
2	Jim Zheng	0.01 s	C++	2020-01-21 17:12:36
3	Neal Zane	0.02 s	C++	2015-11-30 07:47:34
4	Sergio Vieri	0.02 s	C++	2018-01-31 06:26:36
5	Brandon Zhang	0.02 s	C++	2019-05-07 23:54:29
6	Kaiqi Yan	0.02 s	C++	2021-05-21 03:22:38
7	Muhammad Rais Fathin Mudzakir	0.03 s	C++	2016-05-21 12:11:48
8	Hidden user	0.03 s	C++	2016-10-06 16:13:47
9	Валентин Ермишин	0.03 s	C++	2017-09-07 14:34:29
10	Haotian Sun	0.03 s	C++	2017-10-12 15:54:50

#	User	Runtime	Language	Date
1	Frank Staals	0.33 s	Haskell	2015-10-11 20:30:23
2	Jonatan Nilsson	1.44 s	Haskell	2019-04-12 11:00:40

#	User	Runtime	Language	Date
1	Josenildo Silva	0.16 s	Java	2017-07-07 23:04:26
2	William Fiset	0.19 s	Java	2017-04-03 17:08:54
3	Bjørn Dons	0.28 s	Java	2019-06-08 20:35:06
4	Samuel Klingström	0.31 s	Java	2019-08-19 13:03:33
5	Rene Argento	0.35 s	Java	2024-07-21 21:43:05
6	Sumeet Varma	0.36 s	Java	2015-10-10 12:29:26
7	Sam Reinehr	0.37 s	Java	2018-10-15 04:28:56
8	Doug Goodman	0.37 s	Java	2018-12-14 17:20:55
9	Martijn Muijsers	0.38 s	Java	2016-10-30 19:59:20
10	Anders Hagward	0.39 s	Java	2015-10-31 21:15:15

#	User	Runtime	Language	Date
1	Frederik Højholt	0.38 s	JavaScript (SpiderMonkey)	2015-10-18 09:55:07
2	Christian Cederquist	0.67 s	JavaScript (SpiderMonkey)	2023-08-16 21:01:16

#	User	Runtime	Language	Date
1	Hidden user	0.53 s	Kotlin	2020-03-02 04:14:56

#	User	Runtime	Language	Date
1	Sigurður Jens Albertsson	0.09 s	Python 2	2017-11-13 23:15:55
2	Maj Stenmark	0.18 s	Python 2	2018-08-05 18:32:43
3	Øyvind Haarberg	0.18 s	Python 2	2018-08-28 19:51:47
4	Jesper Öqvist	0.19 s	Python 2	2018-10-05 21:17:09
5	Matias Frank Jensen	0.20 s	Python 2	2018-10-11 19:24:16
6	Muhammad Rais Fathin Mudzakir	0.21 s	Python 2	2016-05-21 14:31:32
7	Stian Jensen	0.22 s	Python 2	2015-10-10 19:19:06
8	Urban Pettersson	0.22 s	Python 2	2016-02-15 18:21:14
9	Yan Kalchevsky	0.23 s	Python 2	2016-12-25 20:54:37
10	Robert Welin-Berger	0.24 s	Python 2	2016-06-30 17:05:13

#	User	Runtime	Language	Date
1	M4 Myat Maung	0.17 s	Python 3	2025-03-15 21:21:56
2	Haoming Lin	0.18 s	Python 3	2022-02-17 20:49:08
3	Nicholas Russell Saerang	0.20 s	Python 3	2023-03-27 11:39:49
4	gnaneswari lolugu	0.20 s	Python 3	2024-02-11 03:54:42
5	Måns Magnusson	0.21 s	Python 3	2023-02-15 20:17:11
6	Priyanshu Sethi	0.21 s	Python 3	2024-01-01 22:05:42
7	oscar llain	0.22 s	Python 3	2024-03-16 03:31:23
8	Mayuri Birari	0.22 s	Python 3	2024-04-06 02:16:48
9	Shiven Patel	0.22 s	Python 3	2024-05-23 15:06:51
10	Hidden user	0.22 s	Python 3	2024-05-26 18:48:10

#	User	Runtime	Language	Date
1	Casper Christensen	0.29 s	Ruby	2016-03-28 20:28:18
2	Thomas Feld	0.41 s	Ruby	2023-10-23 14:57:02

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2025-03-04 13:39:39
2	Elias Nodland	0.03 s	Rust	2023-02-26 13:58:23
3	Daniel Anker Hermansen	0.04 s	Rust	2023-10-02 22:04:01
4	Niklas Sandén	0.05 s	Rust	2023-02-15 22:25:23
5	Ole Johan Walderhaug	0.31 s	Rust	2021-07-15 23:57:41

#	User	Length	Language	Date
1	Gunnar Kreitz	1218	C	2015-10-10 10:23:20
2	Ivan Petrov	1330	C	2019-07-03 15:10:15
3	Johan Westerlund	1401	C	2015-10-12 10:33:27
4	Andreas Björklund	2061	C	2018-12-06 17:01:54
5	Hidden user	2504	C	2023-11-13 22:46:51

#	User	Length	Language	Date
1	Lukas Polacek	2135	C#	2016-11-19 17:57:12
2	Hidden user	4363	C#	2017-10-06 22:59:36

#	User	Length	Language	Date
1	Johan Westerlund	481	C++	2015-10-12 11:10:35
2	oy9r	616	C++	2024-03-31 08:57:08
3	Jón Atli Guðmundsson	681	C++	2024-10-12 02:32:27
4	Elias Lolck	824	C++	2023-08-17 00:40:01
5	Jannik Olbrich	841	C++	2019-06-27 10:10:03
6	William Gan	864	C++	2017-08-13 05:28:30
7	Antoni Guz	868	C++	2018-10-21 22:30:47
8	Jeffrey Lee	904	C++	2016-12-06 04:58:24
9	Mehrab Hossain	915	C++	2021-03-08 06:20:31
10	Gerth Stølting Brodal	928	C++	2015-10-11 16:28:29

#	User	Length	Language	Date
1	Frank Staals	1594	Haskell	2015-10-11 19:57:36
2	Jonatan Nilsson	1710	Haskell	2019-04-12 11:00:40

#	User	Length	Language	Date
1	Jonas Sjöstrand	1606	Java	2015-10-12 02:24:41
2	Hidden user	1781	Java	2015-11-12 06:03:43
3	Meet Shah	1853	Java	2021-12-09 05:39:00
4	Josenildo Silva	1882	Java	2017-07-07 23:04:26
5	Joshua Linge	1895	Java	2015-10-10 13:42:08
6	Snild Dolkow	1924	Java	2015-10-10 22:37:44
7	Doug Goodman	2009	Java	2018-12-14 17:20:55
8	Martin Jakobsson	2108	Java	2017-09-08 17:12:00
9	Sam Reinehr	2267	Java	2018-10-15 04:28:56
10	Frank Ruskey	2325	Java	2017-12-04 23:51:43

#	User	Length	Language	Date
1	Christian Cederquist	2715	JavaScript (SpiderMonkey)	2023-08-16 21:01:16
2	Frederik Højholt	2861	JavaScript (SpiderMonkey)	2015-10-18 09:55:07

#	User	Length	Language	Date
1	Hidden user	2140	Kotlin	2020-03-02 04:14:56

#	User	Length	Language	Date
1	Urban Pettersson	873	Python 2	2016-02-15 18:21:14
2	Yan Kalchevsky	1073	Python 2	2016-12-25 20:54:37
3	Hidden user	1121	Python 2	2016-07-23 18:37:16
4	Muhammad Rais Fathin Mudzakir	1206	Python 2	2016-05-21 14:31:32
5	Jesper Öqvist	1332	Python 2	2018-10-05 21:17:09
6	Maj Stenmark	1403	Python 2	2018-08-05 18:32:43
7	Lars Åström	1414	Python 2	2018-11-29 19:11:47
8	Matias Frank Jensen	1518	Python 2	2018-10-11 19:24:16
9	Frederik Højholt	1621	Python 2	2015-10-18 09:57:50
10	Robert Welin-Berger	1760	Python 2	2016-06-30 17:05:13

#	User	Length	Language	Date
1	Shashank Bhatt	646	Python 3	2023-02-08 07:54:17
2	Josh Taylor	822	Python 3	2023-09-19 01:00:26
3	Aman Swar	846	Python 3	2024-01-17 10:17:57
4	Kaustubh Krishna	847	Python 3	2023-12-22 08:39:58
5	Nicholas Russell Saerang	872	Python 3	2023-03-27 21:23:15
6	gnaneswari lolugu	872	Python 3	2024-02-11 03:54:42
7	Priyanshu Sethi	872	Python 3	2024-01-01 22:05:42
8	oscar llain	872	Python 3	2024-03-16 03:31:23
9	Mayuri Birari	872	Python 3	2024-04-06 02:16:48
10	Shiven Patel	872	Python 3	2024-05-23 15:06:51

#	User	Length	Language	Date
1	Thomas Feld	282	Ruby	2023-10-23 15:04:49
2	Casper Christensen	1008	Ruby	2016-03-28 20:28:18

#	User	Length	Language	Date
1	Elias Nodland	1895	Rust	2023-02-26 14:16:39
2	Ole Johan Walderhaug	3648	Rust	2021-07-15 23:57:41
3	Vincent Lagerros	6456	Rust	2024-08-10 18:38:17
4	Niklas Sandén	27149	Rust	2023-02-15 22:25:23
5	Daniel Anker Hermansen	28185	Rust	2023-10-02 22:04:01

Solution running time distribution