Problem I
Subway Planning — Problem Statistics

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Submissions	691
Accepted submissions	303
Submission ratio	43.85%
Authors	249
Accepted authors	212
Author ratio	85.14%

#	User	Runtime	Language	Date
1	Jiangfeng Du	0.00 s	C	2019-03-18 10:32:08
2	Savvas Giortsis	0.00 s	C	2024-11-04 15:19:50

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	C#	2016-10-23 21:33:42
2	Andrzej Krajniak	0.02 s	C#	2016-11-05 09:41:40
3	Soujatya Sanyal	0.02 s	C#	2019-02-08 20:37:55
4	Jakub Jarząbek	0.02 s	C#	2020-11-26 12:48:41
5	Göran Andersson	0.03 s	C#	2022-05-21 04:32:04
6	Alicia Reddy	0.04 s	C#	2024-06-21 11:13:01
7	Sibusiso Nkoane	0.04 s	C#	2024-06-21 15:12:15
8	Vikhayle Sewnundan	0.04 s	C#	2024-06-22 14:39:33
9	Adib Jaigirdar	0.05 s	C#	2024-06-26 12:30:56
10	Pieter Joubert	0.05 s	C#	2025-02-27 17:22:59

#	User	Runtime	Language	Date
1	Norbert Voelker	0.00 s	Go	2023-10-04 20:10:30

#	User	Runtime	Language	Date
1	Brent Yorgey	0.00 s	Haskell	2017-11-23 00:43:34
2	Juan Miguel Vilar	0.01 s	Haskell	2020-10-17 17:43:33

#	User	Runtime	Language	Date
1	Abbe	0.04 s	Java	2024-08-22 15:40:05
2	Simon Klein	0.05 s	Java	2013-05-14 14:55:31
3	Lucas Taubert	0.05 s	Java	2013-05-14 17:34:13
4	Lujia (Luke) Zhang	0.05 s	Java	2015-10-26 21:06:51
5	Pavel Volgarev	0.05 s	Java	2016-10-09 05:41:41
6	Sebastian Leborg	0.05 s	Java	2016-12-06 16:35:50
7	Crystal Sharpe	0.06 s	Java	2020-12-01 16:22:24
8	Lim Yong Shen, Kevin	0.06 s	Java	2021-12-15 09:17:37
9	Theo	0.06 s	Java	2022-03-16 08:43:55
10	Melanie Kirsche	0.07 s	Java	2015-04-25 21:25:39

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2017-07-13 16:32:18
2	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-01-23 01:47:23

#	User	Runtime	Language	Date
1	Jesper Öqvist	0.03 s	Python 2	2018-10-28 16:08:03
2	Andreas Björklund	0.03 s	Python 2	2019-05-09 16:57:40
3	Pavel Volgarev	0.03 s	Python 2	2019-06-10 00:14:01
4	Diana Škof	0.03 s	Python 2	2019-06-10 09:30:12

#	User	Runtime	Language	Date
1	Georgios Iatrou	0.02 s	Python 3	2016-08-12 15:54:19
2	Alain Dupuis	0.02 s	Python 3	2018-01-26 05:51:50
3	Samuel Lewi Hernandes	0.02 s	Python 3	2019-06-08 17:46:41
4	Wilmer Ansgariusson	0.02 s	Python 3	2019-11-20 22:02:31
5	Peter Stauder	0.04 s	Python 3	2022-06-23 20:01:55
6	Eyob Kefale	0.04 s	Python 3	2022-08-29 14:34:16
7	Eyob Kefale	0.04 s	Python 3	2022-08-29 14:34:38
8	Yi-Min Seah	0.04 s	Python 3	2022-08-29 17:36:01
9	Ola Dahl	0.04 s	Python 3	2022-09-06 21:53:26
10	Melkamu Abraraw	0.04 s	Python 3	2022-09-14 11:17:30

#	User	Runtime	Language	Date
1	Erik Rydbert	0.03 s	Ruby	2016-08-10 07:53:04
2	Thomas Feld	0.06 s	Ruby	2023-07-04 09:39:38

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2023-12-30 14:01:30

#	User	Runtime	Language	Date
1	Felix Stenberg	0.00 s	Zig	2025-05-03 17:24:54

#	User	Length	Language	Date
1	Savvas Giortsis	2468	C	2024-11-04 15:19:50
2	Jiangfeng Du	4509	C	2019-03-18 10:32:08

#	User	Length	Language	Date
1	Göran Andersson	1739	C#	2022-05-21 04:32:04
2	Alicia Reddy	2424	C#	2024-06-21 11:13:01
3	Fisokuhle Mkhize	2840	C#	2024-06-22 14:41:09
4	Duane Adendorff	2945	C#	2024-08-17 17:25:44
5	Vikhayle Sewnundan	3195	C#	2024-06-22 14:39:33
6	Jakub Jarząbek	3382	C#	2020-11-26 12:48:41
7	Pieter Joubert	3613	C#	2025-02-27 17:22:59
8	Cameron van Rooyen	3827	C#	2024-08-04 23:19:11
9	Sibusiso Nkoane	4549	C#	2024-06-21 15:12:15
10	Krzysztof Magda	5303	C#	2023-08-28 00:34:04

#	User	Length	Language	Date
1	Julian Moore	474	C++	2023-05-29 03:26:10
2	Eyader Tsehayu	713	C++	2022-08-05 15:23:55
3	Frederick Pek	841	C++	2021-06-25 10:24:29
4	Yeoh Han Yi	887	C++	2025-04-16 16:35:07
5	Johan Wind	897	C++	2018-09-02 22:58:48
6	David Venhoek	939	C++	2016-02-26 12:01:15
7	Alei Reyes	1021	C++	2016-05-03 22:11:57
8	Daniel Fernando Santos Bustos	1068	C++	2024-07-23 18:59:54
9	Jason Cannon	1236	C++	2019-11-22 17:47:16
10	Brandon Zhang	1241	C++	2022-06-05 09:59:38

#	User	Length	Language	Date
1	Norbert Voelker	2640	Go	2023-10-04 20:10:30

#	User	Length	Language	Date
1	Juan Miguel Vilar	1149	Haskell	2020-10-17 17:43:33
2	Brent Yorgey	5118	Haskell	2017-11-23 00:43:34

#	User	Length	Language	Date
1	Jose Daniel Berba	1537	Java	2015-10-31 10:56:06
2	George Badea	1619	Java	2017-05-19 20:55:22
3	Melanie Kirsche	1768	Java	2015-04-25 21:25:39
4	Jakob Hallotech	1802	Java	2023-05-11 10:20:42
5	Duncan Page	1869	Java	2018-01-23 00:36:19
6	Felix Burie	1990	Java	2016-11-20 16:55:35
7	Evan Dorundo	2169	Java	2015-04-25 21:35:28
8	Gabriel Pita	2278	Java	2015-04-25 23:31:22
9	Doug Goodman	2479	Java	2018-05-16 19:21:27
10	Paul Boddington	2627	Java	2016-05-20 22:14:11

#	User	Length	Language	Date
1	Peter Kedemo	1166	JavaScript (SpiderMonkey)	2017-07-13 16:32:18
2	Christian Cederquist	1417	JavaScript (SpiderMonkey)	2023-01-23 01:47:23

#	User	Length	Language	Date
1	Andreas Björklund	859	Python 2	2019-05-09 16:57:40
2	Jesper Öqvist	1016	Python 2	2018-10-28 16:08:40
3	Diana Škof	4309	Python 2	2019-06-10 09:30:12
4	Pavel Volgarev	4313	Python 2	2019-06-10 00:14:01

#	User	Length	Language	Date
1	Thibault Raffaillac	286	Python 3	2023-08-16 16:39:07
2	Eyob Kefale	372	Python 3	2022-08-29 14:34:16
3	Eyob Kefale	372	Python 3	2022-08-29 14:34:38
4	Hidden user	456	Python 3	2023-07-21 13:40:00
5	Melkamu Abraraw	580	Python 3	2022-09-14 11:17:30
6	Samuel Lewi Hernandes	659	Python 3	2019-06-09 15:25:12
7	Hidden user	717	Python 3	2020-05-09 02:06:30
8	Petr	776	Python 3	2024-11-15 03:51:27
9	Bjørn Dons	788	Python 3	2020-05-08 20:03:02
10	Hidden user	811	Python 3	2024-06-18 18:12:17

#	User	Length	Language	Date
1	Thomas Feld	175	Ruby	2023-07-04 10:03:17
2	Erik Rydbert	2114	Ruby	2016-08-10 07:53:04

#	User	Length	Language	Date
1	Bas Dirks	2327	Rust	2023-12-30 14:02:18

#	User	Length	Language	Date
1	Felix Stenberg	2704	Zig	2025-05-03 17:24:54

Solution running time distribution