Problem A
Communications Satellite — Problem Statistics

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Submissions	2011
Accepted submissions	964
Submission ratio	47.94%
Authors	796
Full solves [?]	705
Full solve Ratio	88.57%

#	User	Runtime	Language	Date
1	Richard Homan	0.03 s	C	2021-10-05 03:08:00
2	Hidden user	0.08 s	C	2022-02-24 06:20:47
3	Mirel Cosulschi	0.55 s	C	2024-12-15 19:15:54
4	Hidden user	0.57 s	C	2019-08-20 01:14:42

#	User	Runtime	Language	Date
1	Jose Magana	0.39 s	C#	2018-11-13 07:12:16
2	Simon Thillemann Nielsen	1.50 s	C#	2025-11-19 00:37:04
3	Jens Erik	1.52 s	C#	2025-11-18 23:49:37

#	User	Runtime	Language	Date
1	Paul Baldaray	0.01 s	C++	2022-02-25 19:25:11
2	Zhang Jikun	0.01 s	C++	2022-07-27 00:35:35
3	Teikn Smith	0.01 s	C++	2024-06-13 01:46:44
4	Theo Ebenhoech	0.02 s	C++	2018-12-30 21:24:25
5	Andrew Polizzotto	0.02 s	C++	2022-12-04 03:27:31
6	Tiến Đạt Nguyễn	0.03 s	C++	2019-10-02 11:59:42
7	Dion Koeze	0.03 s	C++	2019-10-15 20:49:43
8	Hidden user	0.03 s	C++	2024-04-26 23:26:33
9	Bao	0.03 s	C++	2024-11-15 23:10:03
10	Isaac Wang	0.03 s	C++	2025-11-11 22:40:44

#	User	Runtime	Language	Date
1	Norbert Voelker	0.25 s	Go	2021-12-26 21:46:46
2	Arne Philipeit	1.11 s	Go	2019-10-23 16:49:36

#	User	Runtime	Language	Date
1	Hidden user	0.24 s	Haskell	2022-02-24 03:46:44
2	Nazarii Bardiuk	2.66 s	Haskell	2018-12-31 01:23:23

#	User	Runtime	Language	Date
1	Andrew Polizzotto	0.17 s	Java	2022-12-09 23:42:07
2	Sven Rönnbäck	0.20 s	Java	2025-11-23 11:32:21
3	Nicholas Russell Saerang	0.22 s	Java	2021-03-26 05:13:17
4	Sayam Goyal	0.22 s	Java	2025-11-14 04:34:12
5	Joshua Workman	0.23 s	Java	2018-11-15 02:06:59
6	Crystal Sharpe	0.23 s	Java	2020-08-11 01:58:13
7	Ryan Tan	0.24 s	Java	2022-04-09 09:48:11
8	Phoon Zi Ling	0.25 s	Java	2025-11-04 04:24:52
9	Ryan Tan	0.26 s	Java	2022-05-03 12:35:43
10	Ong Wei Hong	0.26 s	Java	2022-07-27 03:21:16

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.12 s	JavaScript (SpiderMonkey)	2018-12-30 18:22:18
2	Christian Pilegaard Cederquist	2.71 s	JavaScript (SpiderMonkey)	2023-08-14 23:25:08

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	0.28 s	Python 2	2020-01-16 08:38:26
2	Andreas Björklund	0.35 s	Python 2	2019-11-14 17:40:18
3	Ram Basnet	0.41 s	Python 2	2019-12-02 01:21:27
4	Måns Magnusson	0.45 s	Python 2	2018-11-11 16:29:21
5	Maj Stenmark	0.45 s	Python 2	2018-11-12 00:07:44
6	Ryan Yoshida	0.47 s	Python 2	2019-10-24 09:09:57
7	Benjamin Sepanski	1.22 s	Python 2	2018-11-19 00:26:17
8	Jacky Dai	2.16 s	Python 2	2019-10-20 20:22:11

#	User	Runtime	Language	Date
1	Dave Gallagher	0.14 s	Python 3	2022-01-28 19:27:36
2	Bastien Moron	0.16 s	Python 3	2023-03-16 19:30:11
3	Adithya Palaniappan Ramesh	0.17 s	Python 3	2025-11-14 04:06:33
4	Ryan Tan	0.18 s	Python 3	2022-04-09 09:29:53
5	Abhiram Dasari	0.18 s	Python 3	2025-11-14 04:40:01
6	Krishna Thirunavukkarasu	0.22 s	Python 3	2025-11-07 23:07:03
7	Abhiram Atluri	0.22 s	Python 3	2025-11-13 19:18:33
8	Kadin Matotek	0.24 s	Python 3	2025-03-17 14:21:37
9	Zihan Wang	0.25 s	Python 3	2023-04-23 01:26:26
10	Zihan Wang	0.25 s	Python 3	2023-04-23 01:30:21

#	User	Runtime	Language	Date
1	Donald Dong	0.95 s	Ruby	2018-12-31 00:00:39

#	User	Runtime	Language	Date
1	Christofer Nolander	0.02 s	Rust	2019-06-17 13:57:03
2	Lukas Dutrieux	0.03 s	Rust	2025-11-10 23:02:49
3	Vincent Lagerros	0.09 s	Rust	2025-01-19 01:51:01
4	Aidan Wolter	0.21 s	Rust	2021-10-02 18:57:10
5	Bas Dirks	0.46 s	Rust	2024-02-19 20:40:39
6	David Rasch	0.69 s	Rust	2021-05-27 12:33:41

#	User	Runtime	Language	Date
1	Hidden user	0.43 s	Swift	2023-10-09 13:07:12

#	User	Length	Language	Date
1	Mirel Cosulschi	2010	C	2024-12-15 22:57:01
2	Hidden user	2474	C	2019-08-20 01:14:42
3	Richard Homan	3178	C	2021-10-05 03:08:00
4	Hidden user	3993	C	2022-02-23 23:09:18

#	User	Length	Language	Date
1	Simon Thillemann Nielsen	1950	C#	2025-11-19 00:37:04
2	Jens Erik	1951	C#	2025-11-18 23:49:37
3	Jose Magana	3206	C#	2018-11-13 07:12:16

#	User	Length	Language	Date
1	Lawry Sorenson	415	C++	2024-01-31 22:59:44
2	Teikn Smith	672	C++	2024-06-13 01:46:44
3	Johan Wind	708	C++	2018-11-15 20:44:37
4	Presley Graham	863	C++	2021-04-20 18:10:52
5	Lim An Jun	891	C++	2023-04-11 09:27:52
6	ngmh	917	C++	2025-12-18 17:00:40
7	Ethan Arnold	933	C++	2018-11-12 01:26:24
8	Tyler Jones	934	C++	2023-01-28 21:43:28
9	Ludo Pulles	935	C++	2018-11-19 23:04:24
10	Bùi Việt Dũng	942	C++	2020-11-15 20:13:12

#	User	Length	Language	Date
1	Arne Philipeit	1100	Go	2019-10-23 16:49:36
2	Norbert Voelker	3814	Go	2021-12-26 21:46:46

#	User	Length	Language	Date
1	Nazarii Bardiuk	2001	Haskell	2018-12-31 01:23:23
2	Hidden user	8480	Haskell	2022-02-23 21:20:35

#	User	Length	Language	Date
1	Sharon Barak	1143	Java	2019-04-24 20:57:36
2	Markus Bao	1281	Java	2023-02-19 11:58:26
3	Yeung Man Tsung	1293	Java	2022-07-27 09:29:28
4	Ong Wei Hong	1362	Java	2022-07-27 03:21:16
5	Leon Cao	1548	Java	2018-11-12 22:00:23
6	Daniel West	1564	Java	2019-10-26 20:27:56
7	Pedro Contipelli	1586	Java	2019-10-28 18:56:31
8	Jacob Magnuson	1602	Java	2019-10-26 18:40:11
9	Liu Han	1621	Java	2020-04-15 05:50:10
10	Jeffrey Huang	1640	Java	2018-11-10 21:24:08

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	1563	JavaScript (SpiderMonkey)	2023-08-14 23:25:08
2	Bjørn Chr. Soltvedt	2894	JavaScript (SpiderMonkey)	2018-12-30 18:22:18

#	User	Length	Language	Date
1	Oskar Haarklou Veileborg	546	Python 2	2020-01-16 08:38:26
2	Måns Magnusson	635	Python 2	2018-11-11 16:29:21
3	Maj Stenmark	635	Python 2	2018-11-12 00:07:44
4	Andreas Björklund	684	Python 2	2019-11-14 17:40:18
5	Ryan Yoshida	1014	Python 2	2019-10-24 09:09:57
6	Jacky Dai	1134	Python 2	2019-10-20 20:22:11
7	Benjamin Sepanski	1219	Python 2	2018-11-19 00:26:17
8	Ram Basnet	1225	Python 2	2019-12-02 01:21:27

#	User	Length	Language	Date
1	Maxim Barbe	352	Python 3	2024-10-06 03:41:23
2	Oskar Haarklou Veileborg	417	Python 3	2020-01-16 08:36:28
3	Ankur Garg	499	Python 3	2020-11-15 20:32:42
4	Clement Oh	587	Python 3	2024-03-10 08:32:42
5	Xiu-Heng Hua	607	Python 3	2023-03-16 18:30:57
6	Mees de Vries	623	Python 3	2019-05-24 20:55:02
7	Shashank Bhatt	625	Python 3	2023-01-24 04:45:12
8	Isaac Erdman	642	Python 3	2024-03-15 02:24:38
9	William	650	Python 3	2024-03-12 19:18:40
10	Josip Smolcic	656	Python 3	2018-11-17 07:42:05

#	User	Length	Language	Date
1	Donald Dong	632	Ruby	2018-12-31 00:00:39

#	User	Length	Language	Date
1	Lukas Dutrieux	1678	Rust	2025-11-10 23:02:49
2	David Rasch	1901	Rust	2021-05-27 12:33:41
3	Aidan Wolter	3322	Rust	2021-10-02 18:57:10
4	Christofer Nolander	3425	Rust	2019-06-17 14:25:12
5	Bas Dirks	4502	Rust	2024-02-19 20:40:39
6	Vincent Lagerros	7746	Rust	2024-05-30 01:00:03

#	User	Length	Language	Date
1	Hidden user	1235	Swift	2023-10-09 13:07:12

Solution running time distribution