Problem I
Iron and Coal — Problem Statistics

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Submissions	1422
Accepted submissions	428
Submission ratio	30.10%
Authors	400
Accepted authors	334
Author ratio	83.50%

#	User	Runtime	Language	Date
1	Hidden user	0.12 s	C	2022-12-13 20:27:02
2	Ivan Petrov	0.13 s	C	2017-11-17 11:24:50

#	User	Runtime	Language	Date
1	Raul Kooter	2.70 s	C#	2016-11-20 15:42:02

#	User	Runtime	Language	Date
1	Magnus Hokland Hegdahl	0.02 s	C++	2022-11-20 14:07:01
2	Kingsley Zhong	0.04 s	C++	2023-05-28 06:00:48
3	Eoin Davey	0.05 s	C++	2017-09-07 20:09:02
4	Yehezkiel Raymundo Theodoroes	0.05 s	C++	2018-11-15 05:47:16
5	Hidden user	0.05 s	C++	2019-07-26 10:23:36
6	Charlie Zheng	0.06 s	C++	2023-05-28 05:57:00
7	Sam Zhang	0.09 s	C++	2016-11-21 22:53:56
8	Yilun Wu	0.09 s	C++	2018-10-21 20:39:47
9	Mário Henrique	0.10 s	C++	2016-11-20 13:19:16
10	She Jiayu	0.10 s	C++	2020-09-12 01:11:23

#	User	Runtime	Language	Date
1	Harald Andersson	0.27 s	Go	2017-06-12 08:39:42

#	User	Runtime	Language	Date
1	Bjørn Dons	0.31 s	Java	2018-12-12 01:06:33
2	Mark Sturtevant	0.54 s	Java	2024-05-24 04:56:08
3	Alice Ryhl	0.55 s	Java	2018-12-14 10:48:35
4	Eskil Jarlskog	0.57 s	Java	2016-11-21 15:49:30
5	Sam Keyser	0.57 s	Java	2023-05-27 17:57:48
6	Martijn Muijsers	0.60 s	Java	2016-11-21 19:04:30
7	Simen Hornnes	0.62 s	Java	2019-11-05 21:17:17
8	Alex Coleman	0.63 s	Java	2017-03-02 19:26:08
9	Måns Magnusson	0.65 s	Java	2016-11-20 13:57:49
10	Erik Baalhuis	0.65 s	Java	2017-09-15 17:59:24

#	User	Runtime	Language	Date
1	Phường Lên	0.82 s	Kotlin	2020-07-20 19:39:37
2	Liow Jia Chen	1.57 s	Kotlin	2020-09-06 05:15:36

#	User	Runtime	Language	Date
1	Lars Åström	0.24 s	Python 2	2018-04-20 23:43:31
2	Maj Stenmark	0.25 s	Python 2	2018-04-18 22:56:51
3	Andreas Björklund	0.27 s	Python 2	2019-08-11 15:48:19
4	Øyvind Haarberg	0.79 s	Python 2	2017-10-17 17:51:03
5	Jesper Öqvist	0.91 s	Python 2	2018-06-07 13:11:10

#	User	Runtime	Language	Date
1	Atli Fannar Franklín	0.30 s	Python 3	2025-03-05 17:11:19
2	Riemer Kerkstra	0.31 s	Python 3	2023-03-05 21:04:38
3	D. Salgado	0.32 s	Python 3	2023-05-27 17:48:41
4	Lennart Meyling	0.32 s	Python 3	2023-10-26 23:53:28
5	Lasse Møldrup	0.33 s	Python 3	2022-12-03 21:44:52
6	Gradin Anderson	0.33 s	Python 3	2023-09-19 06:41:08
7	Samuel Bennion	0.36 s	Python 3	2023-09-22 21:59:56
8	Lawry Sorenson	0.37 s	Python 3	2023-09-20 21:37:44
9	Ahan Gupta	0.41 s	Python 3	2020-09-11 08:08:01
10	Caleb Dastrup	0.42 s	Python 3	2025-03-08 02:37:26

#	User	Runtime	Language	Date
1	Daniel Anker Hermansen	0.08 s	Rust	2022-11-26 21:54:57

#	User	Length	Language	Date
1	Hidden user	2114	C	2022-12-13 20:27:02
2	Ivan Petrov	4807	C	2017-11-17 11:24:50

#	User	Length	Language	Date
1	Raul Kooter	6549	C#	2016-11-20 15:42:02

#	User	Length	Language	Date
1	Josenildo Silva	941	C++	2018-08-07 19:09:30
2	Matias Lahti	1050	C++	2016-12-09 22:01:26
3	Teikn Smith	1057	C++	2023-05-27 20:43:32
4	She Jiayu	1069	C++	2020-03-22 21:04:19
5	Vuong Nguyen	1082	C++	2020-10-14 05:49:58
6	Giovanni Gaio	1111	C++	2023-08-22 16:55:31
7	Elias Lolck	1121	C++	2022-10-13 11:17:17
8	Nick Wu	1156	C++	2023-05-27 18:16:14
9	Feng Chen	1191	C++	2025-04-19 17:10:09
10	Gabriel Silva Simões	1193	C++	2017-11-21 20:22:10

#	User	Length	Language	Date
1	Harald Andersson	4249	Go	2017-06-12 08:39:42

#	User	Length	Language	Date
1	Doug Goodman	1732	Java	2018-01-11 15:34:23
2	Benjamin Reidys	1877	Java	2019-11-06 23:52:50
3	Alex Zuckut	2051	Java	2017-04-08 21:52:45
4	Paolo Pellizzoni	2264	Java	2020-01-16 10:22:16
5	Kurtis Van Gent	2328	Java	2017-04-08 21:38:47
6	Arup Ratan Guha	2331	Java	2023-05-27 19:16:43
7	Alex Coleman	2427	Java	2017-03-02 19:26:08
8	Spencer Compton	2482	Java	2016-11-20 13:39:38
9	Richard Peng	2482	Java	2017-12-09 18:22:19
10	Thore Tiemann	2569	Java	2016-11-23 22:03:41

#	User	Length	Language	Date
1	Liow Jia Chen	1874	Kotlin	2020-09-06 05:15:36
2	Phường Lên	2633	Kotlin	2020-07-20 19:39:37

#	User	Length	Language	Date
1	Maj Stenmark	1050	Python 2	2018-04-18 22:56:51
2	Øyvind Haarberg	1099	Python 2	2017-10-17 17:51:03
3	Andreas Björklund	1209	Python 2	2019-08-11 15:48:19
4	Lars Åström	1304	Python 2	2018-04-20 23:43:31
5	Jesper Öqvist	1388	Python 2	2018-06-07 13:11:10

#	User	Length	Language	Date
1	Lennart Meyling	729	Python 3	2023-10-26 23:53:28
2	Christian Lindeström	739	Python 3	2016-11-24 14:23:16
3	Caleb Dastrup	864	Python 3	2025-03-08 02:37:26
4	Lawry Sorenson	888	Python 3	2023-09-20 21:37:44
5	Samuel Bennion	909	Python 3	2023-09-22 21:59:56
6	Ryan Farrell	928	Python 3	2023-09-18 22:36:43
7	D. Salgado	945	Python 3	2023-05-27 17:48:41
8	Nicholas Russell Saerang	969	Python 3	2023-09-03 23:47:28
9	Lucas Patten	1052	Python 3	2023-09-20 21:38:08
10	Atli Fannar Franklín	1085	Python 3	2025-03-05 17:11:19

#	User	Length	Language	Date
1	Daniel Anker Hermansen	11902	Rust	2022-11-26 21:54:57

Solution running time distribution