Problem A
Railway — Problem Statistics

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Submissions	831
Accepted submissions	246
Submission ratio	29.60%
Authors	216
Accepted authors	171
Author ratio	79.17%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.09 s	C	2019-07-22 15:19:26

#	User	Runtime	Language	Date
1	Kirill Gulin	0.05 s	C++	2017-07-02 13:47:34
2	Alexey Filinovich	0.05 s	C++	2017-07-02 13:52:31
3	Arun Wong	0.06 s	C++	2017-06-26 17:05:18
4	Popovici Robert	0.06 s	C++	2019-07-24 13:10:20
5	Matheus Leal Viana	0.07 s	C++	2017-11-16 19:06:09
6	Charilaos Pipis	0.07 s	C++	2018-04-28 22:29:43
7	Daniel Zhang	0.07 s	C++	2018-06-29 04:54:22
8	Gabriel Silva Simões	0.07 s	C++	2018-07-11 20:23:57
9	Simon Lindholm	0.07 s	C++	2018-08-01 19:15:17
10	Hidden user	0.07 s	C++	2018-09-17 05:40:16

#	User	Runtime	Language	Date
1	Norbert Voelker	0.24 s	Go	2024-07-12 22:52:56

#	User	Runtime	Language	Date
1	Alexandrs Zayakins	0.20 s	Pascal	2017-06-22 09:41:41

#	User	Runtime	Language	Date
1	Duoduo Zhao	0.74 s	Python 3	2025-07-26 08:08:24

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.06 s	Rust	2025-02-11 19:01:14

#	User	Length	Language	Date
1	Ivan Petrov	6415	C	2019-07-22 15:19:26

#	User	Length	Language	Date
1	Nyamdavaa Amar	1441	C++	2021-12-06 16:53:09
2	Sirawit Pongnakin	1473	C++	2018-10-12 18:54:49
3	Nguyễn Minh Tùng	1516	C++	2018-09-17 04:57:28
4	Gediminas Lelešius	1531	C++	2018-01-05 15:30:54
5	Vinh Nguyễn Thành	1573	C++	2017-09-21 16:24:35
6	Jimmy Dinh	1629	C++	2025-07-28 00:09:04
7	Dat Vu	1648	C++	2018-09-17 04:39:28
8	Rezwan Arefin	1668	C++	2018-07-20 01:58:29
9	Tautvydas Jasiūnas	1676	C++	2018-01-03 14:51:57
10	Sorawit Suriyakarn	1696	C++	2017-06-29 11:09:22

#	User	Length	Language	Date
1	Norbert Voelker	6474	Go	2024-07-12 23:38:36

#	User	Length	Language	Date
1	Alexandrs Zayakins	5810	Pascal	2017-06-22 09:41:41

#	User	Length	Language	Date
1	Duoduo Zhao	6246	Python 3	2025-07-26 08:08:24

#	User	Length	Language	Date
1	Vincent Lagerros	22632	Rust	2025-02-11 19:01:14

Solution running time distribution