Problem F
Keeping On Track — Problem Statistics

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Submissions	794
Accepted submissions	317
Submission ratio	39.92%
Authors	267
Full solves [?]	229
Full solve Ratio	85.77%

#	User	Runtime	Language	Date
1	Ryan Maschino	0.17 s	C	2023-10-20 04:45:26
2	Ivan Petrov	0.50 s	C	2019-12-11 14:16:20

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.06 s	Java	2024-08-01 12:43:09
2	Jimmy Dinh	0.11 s	Java	2023-10-12 08:48:13
3	Anh Mai Le Xuan	0.14 s	Java	2018-10-13 21:24:53
4	Måns Magnusson	0.15 s	Java	2018-09-16 15:19:53
5	Maj Stenmark	0.15 s	Java	2018-09-27 16:41:43
6	Jeffrey H.	0.17 s	Java	2023-07-09 20:51:56
7	Taras Romanyuk	0.17 s	Java	2025-01-24 00:03:06
8	Lewin Gan	0.18 s	Java	2017-10-28 19:09:11
9	Richard Peng	0.18 s	Java	2017-12-09 22:37:09
10	William Walker	0.19 s	Java	2023-07-10 08:56:03

#	User	Runtime	Language	Date
1	Jacob Huebner	0.18 s	Kotlin	2021-04-13 05:02:18
2	Слава Гуляев	0.24 s	Kotlin	2017-11-15 12:14:24
3	Hidden user	0.26 s	Kotlin	2020-02-15 01:48:37
4	Nicholas Johnson	0.26 s	Kotlin	2021-04-14 01:05:36
5	Phường Lên	0.27 s	Kotlin	2020-02-15 05:24:42
6	Kiel Dowdle	1.00 s	Kotlin	2021-04-14 01:27:19

#	User	Runtime	Language	Date
1	Robert Kramer	0.07 s	Python 2	2017-10-29 22:55:55
2	Wyatt Wismer	0.08 s	Python 2	2017-11-01 20:59:28
3	Daniel Wolff	0.08 s	Python 2	2017-11-03 03:00:45
4	Lars Åström	0.09 s	Python 2	2019-09-24 14:14:29
5	Godmar Back	0.53 s	Python 2	2018-10-14 22:28:22

#	User	Runtime	Language	Date
1	Eimhin McDonald	0.08 s	Python 3	2018-07-31 00:06:14
2	Mohammed Raeesul Irfan Riaz Ahmed	0.08 s	Python 3	2024-11-03 22:11:48
3	Daniel Bogorad	0.08 s	Python 3	2025-09-07 20:11:48
4	Lawry Sorenson	0.09 s	Python 3	2024-11-15 03:07:35
5	Pratyanch Jain	0.11 s	Python 3	2023-10-31 23:28:47
6	Kyle Layzer	0.12 s	Python 3	2024-01-25 03:09:04
7	Isaac Lee	0.13 s	Python 3	2022-01-18 23:41:20
8	Oskar Haarklou Veileborg	0.14 s	Python 3	2020-04-03 13:56:17
9	Hidden user	0.14 s	Python 3	2023-08-16 20:28:29
10	Taesung Hwang	0.15 s	Python 3	2023-10-23 02:26:57

#	User	Runtime	Language	Date
1	Zhixing Zhang	0.00 s	Rust	2020-04-18 11:12:36

#	User	Length	Language	Date
1	Ivan Petrov	2035	C	2019-12-11 14:16:20
2	Ryan Maschino	5006	C	2023-10-20 04:48:55

#	User	Length	Language	Date
1	Teikn Smith	718	C++	2024-10-18 04:46:38
2	William Gan	782	C++	2018-04-12 10:14:03
3	Hidden user	789	C++	2017-10-28 18:49:11
4	Muhammad Ayaz Dzulfikar	910	C++	2018-10-05 15:16:46
5	Josenildo Silva	954	C++	2020-04-30 02:48:47
6	Pu Chen	970	C++	2017-11-10 20:49:58
7	Farbod Yadegarian	1028	C++	2017-10-28 18:51:14
8	Frank Boar	1034	C++	2017-11-04 03:08:33
9	Alex Dai	1083	C++	2017-11-24 11:56:14
10	Paul Baldaray	1105	C++	2021-01-13 00:29:08

#	User	Length	Language	Date
1	Alex Coleman	1417	Java	2017-11-03 21:12:56
2	Trung Quan Tong Dam	1636	Java	2018-01-22 23:16:49
3	Doug Goodman	1718	Java	2019-05-31 16:13:08
4	Nathaniel Lahn	1856	Java	2018-10-13 22:28:02
5	Crystal Sharpe	2014	Java	2021-08-08 23:24:44
6	Ray Bai	2035	Java	2020-12-12 18:35:11
7	Måns Magnusson	2037	Java	2018-09-16 15:19:53
8	Maj Stenmark	2037	Java	2018-09-27 16:41:43
9	Suhas T. Nagar	2102	Java	2022-05-25 23:42:42
10	Shoutian Liu	2299	Java	2019-10-21 21:51:34

#	User	Length	Language	Date
1	Phường Lên	1404	Kotlin	2020-02-15 05:24:42
2	Hidden user	2118	Kotlin	2020-02-15 01:48:37
3	Слава Гуляев	2191	Kotlin	2017-11-15 12:14:24
4	Jacob Huebner	2247	Kotlin	2021-04-13 05:02:18
5	Nicholas Johnson	2878	Kotlin	2021-04-14 00:02:25
6	Kiel Dowdle	3392	Kotlin	2021-04-14 01:27:19

#	User	Length	Language	Date
1	Lars Åström	739	Python 2	2019-09-24 14:14:29
2	Wyatt Wismer	1060	Python 2	2017-11-01 20:59:28
3	Godmar Back	1098	Python 2	2018-10-14 22:28:22
4	Daniel Wolff	1155	Python 2	2017-11-03 03:00:45
5	Robert Kramer	2274	Python 2	2017-10-29 22:55:55

#	User	Length	Language	Date
1	Lawry Sorenson	695	Python 3	2024-11-15 03:07:35
2	Oskar Haarklou Veileborg	759	Python 3	2020-04-03 14:02:09
3	Daniel Bogorad	790	Python 3	2025-09-07 20:11:48
4	Mohammed Raeesul Irfan Riaz Ahmed	855	Python 3	2024-11-03 22:11:48
5	Hidden user	1007	Python 3	2023-08-16 20:28:29
6	Albert Chu	1025	Python 3	2021-01-16 21:51:55
7	Eimhin McDonald	1081	Python 3	2018-07-31 00:06:14
8	Timothy Han	1276	Python 3	2020-12-13 23:35:59
9	Taesung Hwang	1383	Python 3	2023-10-23 02:26:57
10	Isaac Lee	1454	Python 3	2022-01-18 23:41:20

#	User	Length	Language	Date
1	Zhixing Zhang	3789	Rust	2020-04-18 11:12:36

Solution running time distribution