Problem I
Train Boarding — Problem Statistics

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Submissions	1316
Accepted submissions	350
Submission ratio	26.60%
Authors	377
Full solves [?]	294
Full solve Ratio	77.98%

#	User	Runtime	Language	Date
1	Thomas Feld	0.08 s	APL	2023-08-02 14:22:48

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2021-03-28 14:10:50
2	Max Nilsson	0.00 s	C	2021-07-06 00:13:35
3	Eyleifur Bjarkason	0.00 s	C	2021-09-12 23:55:53
4	Bhavya Alok	0.00 s	C	2023-11-21 14:46:54
5	Hidden user	0.00 s	C	2024-02-26 07:51:33
6	Hidden user	0.00 s	C	2025-02-14 12:33:30

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-11-04 20:28:22

#	User	Runtime	Language	Date
1	Jason Hooper	0.01 s	Haskell	2021-03-29 02:43:53
2	Brent Yorgey	0.01 s	Haskell	2021-03-29 19:40:06
3	Isaac Arvestad	0.01 s	Haskell	2021-09-15 09:28:25
4	Hidden user	0.01 s	Haskell	2023-05-24 12:59:54

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.04 s	Java	2024-08-30 22:45:48
2	Crystal Sharpe	0.06 s	Java	2021-04-08 02:45:01
3	Hiếu Vũ Minh	0.07 s	Java	2021-04-17 11:01:06
4	Ray Bai	0.07 s	Java	2021-12-08 19:47:27
5	Brandon Ou	0.07 s	Java	2021-12-08 19:50:48
6	Kevin Lim Yong Shen	0.07 s	Java	2022-04-25 10:20:42
7	Darshan Vekaria	0.07 s	Java	2022-10-22 19:35:21
8	Luke Blazing	0.07 s	Java	2022-12-05 20:07:43
9	Bjørn Dons	0.08 s	Java	2023-02-25 20:01:08
10	Victor Nguyen	0.10 s	Java	2021-11-02 18:16:48

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2021-03-31 12:46:23
2	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-08-03 18:15:51

#	User	Runtime	Language	Date
1	Noszály Csaba	0.43 s	Julia	2025-04-08 19:17:57

#	User	Runtime	Language	Date
1	Jacob Huebner	0.13 s	Kotlin	2021-10-08 05:00:07
2	Nicholas Johnson	0.18 s	Kotlin	2021-10-07 05:29:12

#	User	Runtime	Language	Date
1	Jacob Albers	0.04 s	Python 3	2022-09-16 23:12:49
2	Greg Hamerly	0.04 s	Python 3	2022-10-11 18:28:15
3	Duoduo Zhao	0.04 s	Python 3	2025-07-07 02:18:01
4	Hidden user	0.04 s	Python 3	2025-07-27 05:06:37
5	Matthew Strom	0.05 s	Python 3	2022-12-08 20:38:35
6	Ahmed Siadomar	0.05 s	Python 3	2023-02-23 18:48:03
7	Benjamin Z White	0.05 s	Python 3	2023-05-30 16:52:38
8	Josh Taylor	0.05 s	Python 3	2023-07-06 02:15:34
9	Todd Applegate	0.05 s	Python 3	2024-11-08 03:04:31
10	Caleb Dastrup	0.05 s	Python 3	2024-11-08 03:33:51

#	User	Runtime	Language	Date
1	Thomas Feld	0.09 s	Ruby	2023-08-02 13:49:20

#	User	Runtime	Language	Date
1	Niklas Sandén	0.00 s	Rust	2023-02-11 15:32:48

#	User	Length	Language	Date
1	Thomas Feld	98	APL	2023-08-02 14:36:47

#	User	Length	Language	Date
1	Max Nilsson	887	C	2021-07-06 00:13:35
2	Hidden user	1045	C	2025-02-14 12:33:30
3	Hidden user	1060	C	2024-02-26 07:51:33
4	Bergur Snorrason	1909	C	2021-03-28 14:10:50
5	Bhavya Alok	1925	C	2023-11-21 14:46:54
6	Eyleifur Bjarkason	8149	C	2021-09-12 23:55:53

#	User	Length	Language	Date
1	Zac Friggstad	328	C++	2021-04-12 17:18:35
2	Dmitry Lyubshin	385	C++	2023-04-10 17:56:26
3	Atli Fannar Franklín	425	C++	2023-06-21 16:59:12
4	Frederick Pek	430	C++	2021-12-06 17:29:57
5	Erik Amirell Eklöf	437	C++	2021-09-15 17:20:07
6	Blake McLachlin	444	C++	2021-03-10 07:25:24
7	Grae Yeandle	458	C++	2021-07-24 17:31:53
8	Alexander Skidanov	458	C++	2025-02-16 15:22:59
9	Minseok Son	468	C++	2021-10-24 10:54:14
10	Hyunjun Lee	526	C++	2022-10-12 10:19:35

#	User	Length	Language	Date
1	Norbert Voelker	1147	Go	2021-11-04 20:31:21

#	User	Length	Language	Date
1	Isaac Arvestad	599	Haskell	2021-09-15 09:28:25
2	Hidden user	689	Haskell	2023-05-24 12:59:54
3	Jason Hooper	1938	Haskell	2021-03-29 02:43:53
4	Brent Yorgey	3764	Haskell	2021-03-29 19:40:06

#	User	Length	Language	Date
1	John Vincent Chua	830	Java	2023-06-10 19:33:12
2	Crystal Sharpe	864	Java	2021-04-08 02:45:01
3	Daniel Carlson	879	Java	2022-11-14 17:12:47
4	Doug Goodman	918	Java	2021-12-17 20:31:53
5	Satya Sai Rama Reddy Chinnam	930	Java	2024-11-08 19:18:55
6	Ethan Stanley	949	Java	2021-03-06 21:40:17
7	Brian Tan	995	Java	2022-10-22 22:12:54
8	Brandon Ou	999	Java	2021-12-08 19:50:48
9	Hidden user	1029	Java	2021-12-08 18:42:27
10	Kevin Lee	1056	Java	2021-12-08 21:34:05

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	615	JavaScript (SpiderMonkey)	2021-03-31 12:50:31
2	Christian Cederquist	685	JavaScript (SpiderMonkey)	2023-08-03 18:15:51

#	User	Length	Language	Date
1	Noszály Csaba	161	Julia	2025-04-08 19:36:33

#	User	Length	Language	Date
1	Jacob Huebner	1251	Kotlin	2021-10-08 05:00:07
2	Nicholas Johnson	2690	Kotlin	2021-10-07 05:29:12

#	User	Length	Language	Date
1	Benjamin Z White	132	Python 3	2023-05-30 17:06:34
2	Yong Mao	151	Python 3	2023-08-11 03:50:12
3	Zach Hacking	163	Python 3	2023-10-07 10:40:48
4	Shashank Bhatt	167	Python 3	2023-01-13 20:51:24
5	Wen Li Looi	195	Python 3	2021-04-03 20:00:40
6	Rafael Kristoforus Yanto	213	Python 3	2025-05-09 23:24:39
7	Hidden user	217	Python 3	2022-11-13 20:01:50
8	Ryan Farrell	218	Python 3	2023-10-01 06:22:21
9	Oskar Haarklou Veileborg	220	Python 3	2021-03-30 15:27:10
10	Eren Saglam	221	Python 3	2021-10-30 02:16:20

#	User	Length	Language	Date
1	Thomas Feld	132	Ruby	2023-08-02 13:52:52

#	User	Length	Language	Date
1	Niklas Sandén	26155	Rust	2023-02-11 15:32:48

Solution running time distribution