Problem A
Freight Train — Problem Statistics

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Submissions	1724
Accepted submissions	514
Submission ratio	29.81%
Authors	449
Accepted authors	378
Author ratio	84.19%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.10 s	C	2019-07-22 13:12:28
2	Hidden user	0.11 s	C	2023-01-04 13:43:58
3	Olav Røthe Bakken	0.12 s	C	2017-11-03 18:10:52

#	User	Runtime	Language	Date
1	Ard Overkamp	0.26 s	C#	2018-09-23 17:53:18
2	Erik van Holland	0.28 s	C#	2018-02-09 12:45:27
3	Arjan Hennink	0.29 s	C#	2018-10-07 12:40:45
4	Hidden user	0.33 s	C#	2023-04-07 01:26:34

#	User	Runtime	Language	Date
1	Hidden user	0.06 s	C++	2019-08-10 05:52:47
2	李连奇	0.06 s	C++	2024-03-25 12:26:51
3	Brandon Zhang	0.07 s	C++	2024-03-18 07:08:16
4	Yu-Chen Chan	0.07 s	C++	2024-04-12 05:31:26
5	Martin Ramirez Sierralta	0.08 s	C++	2020-04-06 03:42:44
6	陳重諺	0.08 s	C++	2020-09-27 11:41:23
7	Andrew Polizzotto	0.08 s	C++	2022-08-06 04:31:56
8	Jérôme Mayolet	0.08 s	C++	2022-10-10 15:55:48
9	Daniel Mota Guerra	0.08 s	C++	2023-03-22 20:23:34
10	Dirck van den Ende	0.08 s	C++	2023-05-07 13:05:43

#	User	Runtime	Language	Date
1	Bjørn Dons	0.17 s	Java	2019-09-08 20:37:18
2	Laurens Versluis	0.17 s	Java	2019-09-08 20:43:07
3	Josenildo Silva	0.21 s	Java	2017-07-08 05:32:52
4	Hidden user	0.21 s	Java	2024-04-12 00:31:54
5	Hidden user	0.32 s	Java	2016-08-17 23:32:35
6	Bao Quoc Phan	0.36 s	Java	2024-04-13 05:52:46
7	Jiru Xu	0.37 s	Java	2017-11-07 03:01:28
8	Pierre Vandenhove	0.38 s	Java	2016-09-30 13:06:49
9	Benjamin Reidys	0.38 s	Java	2019-06-16 00:21:04
10	Alex Huang	0.39 s	Java	2020-05-02 21:45:09

#	User	Runtime	Language	Date
1	Øyvind Haarberg	0.16 s	Python 2	2017-11-03 17:04:15
2	Måns Magnusson	0.17 s	Python 2	2018-10-22 17:43:33
3	Oskar Larsson	0.17 s	Python 2	2019-05-15 22:20:35
4	Maj Stenmark	0.18 s	Python 2	2019-07-08 17:15:51
5	Carina Nilsson	0.27 s	Python 2	2019-09-08 15:44:37
6	Andreas Björklund	0.30 s	Python 2	2019-05-20 07:58:33
7	Asger Hautop Drewsen	0.48 s	Python 2	2018-10-05 17:59:41
8	Oskar Haarklou Veileborg	0.48 s	Python 2	2018-10-29 21:53:00
9	Lars Åström	1.51 s	Python 2	2019-05-13 22:56:21

#	User	Runtime	Language	Date
1	Yasir Yilmazcoban	0.18 s	Python 3	2025-03-06 17:33:32
2	Jack Augenstine	0.19 s	Python 3	2025-02-20 19:36:23
3	Alan Zhou	0.20 s	Python 3	2025-03-15 00:18:23
4	David Nilsson	0.21 s	Python 3	2020-05-08 21:19:42
5	Hidden user	0.21 s	Python 3	2024-03-16 06:13:42
6	Julio Dondisch	0.21 s	Python 3	2025-03-15 03:53:00
7	Samay Upadhyay	0.22 s	Python 3	2023-05-10 22:02:14
8	alexandre dewilde	0.22 s	Python 3	2023-07-18 09:34:23
9	Pratyanch Jain	0.22 s	Python 3	2023-09-22 08:10:05
10	bai li	0.22 s	Python 3	2023-09-22 21:57:47

#	User	Runtime	Language	Date
1	Niklas Sandén	0.07 s	Rust	2023-01-18 19:24:41
2	Mckinley Xie	0.09 s	Rust	2025-03-13 03:48:03

#	User	Length	Language	Date
1	Ivan Petrov	956	C	2019-07-22 13:12:28
2	Hidden user	1099	C	2023-01-04 13:43:58
3	Olav Røthe Bakken	1275	C	2017-11-03 18:10:52

#	User	Length	Language	Date
1	Hidden user	1481	C#	2023-04-07 01:26:34
2	Ard Overkamp	3887	C#	2018-09-23 17:53:18
3	Erik van Holland	3970	C#	2018-02-09 12:45:27
4	Arjan Hennink	4149	C#	2018-10-07 12:40:45

#	User	Length	Language	Date
1	Atharva Kerkar	402	C++	2025-02-24 22:47:37
2	Adil Rasiyani	560	C++	2023-03-08 07:08:09
3	Leo Lee	649	C++	2024-04-02 22:18:40
4	Yupeng Gu	661	C++	2019-04-26 04:18:04
5	Ke Bi	679	C++	2017-10-17 17:24:52
6	David Venhoek	701	C++	2016-04-21 11:09:40
7	Mihai Andreescu	702	C++	2016-02-27 19:21:10
8	Syx Pek	705	C++	2016-12-03 17:19:05
9	NCTU_Radar	723	C++	2016-04-20 14:51:25
10	Andreas Grigorjew	737	C++	2019-07-30 20:43:25

#	User	Length	Language	Date
1	Doug Goodman	1172	Java	2018-03-23 20:57:57
2	Jiru Xu	1188	Java	2017-11-07 03:01:28
3	Andrew Polizzotto	1208	Java	2020-10-05 22:39:21
4	Hidden user	1214	Java	2016-08-17 23:32:35
5	Michael LoPiccolo	1357	Java	2017-09-09 19:26:55
6	Aurko Routh	1393	Java	2024-03-17 03:53:33
7	KL	1486	Java	2022-06-07 12:27:54
8	Martijn Muijsers	1493	Java	2020-08-19 15:27:37
9	Josenildo Silva	1724	Java	2017-07-08 05:32:52
10	Kevin Dai	1772	Java	2024-03-05 06:27:11

#	User	Length	Language	Date
1	Oskar Larsson	529	Python 2	2019-05-15 22:20:35
2	Andreas Björklund	713	Python 2	2019-05-20 07:58:33
3	Måns Magnusson	726	Python 2	2018-10-22 17:43:33
4	Lars Åström	729	Python 2	2019-05-13 22:56:21
5	Øyvind Haarberg	1047	Python 2	2017-11-03 17:04:15
6	Maj Stenmark	1055	Python 2	2019-07-08 17:15:51
7	Carina Nilsson	1294	Python 2	2019-09-08 15:44:37
8	Asger Hautop Drewsen	1317	Python 2	2018-10-05 17:59:41
9	Oskar Haarklou Veileborg	1317	Python 2	2018-10-29 21:53:00

#	User	Length	Language	Date
1	Alan Zhou	303	Python 3	2025-03-15 00:33:48
2	Jack Augenstine	460	Python 3	2025-02-21 06:55:06
3	Nicholas Russell Saerang	471	Python 3	2024-06-18 16:20:40
4	Jack Vacek	586	Python 3	2025-03-23 00:53:42
5	Matthew Wang	640	Python 3	2024-03-17 03:35:29
6	Hidden user	645	Python 3	2024-03-16 07:59:53
7	Jacob Gummesson Atroshi	701	Python 3	2019-05-19 11:02:07
8	Hidden user	730	Python 3	2025-03-20 20:34:04
9	obiwac	750	Python 3	2023-08-19 14:12:55
10	Hidden user	759	Python 3	2023-03-08 05:17:40

#	User	Length	Language	Date
1	Mckinley Xie	1948	Rust	2025-03-13 03:48:03
2	Niklas Sandén	26467	Rust	2023-01-18 19:24:41

Solution running time distribution