Problem C
John's Book Stack — Problem Statistics

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Submissions	471
Accepted submissions	162
Submission ratio	34.39%
Authors	176
Full solves [?]	122
Full solve Ratio	69.32%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2019-07-22 09:55:39

#	User	Runtime	Language	Date
1	Bjørn Dons	0.01 s	Go	2023-07-26 22:23:50

#	User	Runtime	Language	Date
1	Wilfried van Asten	0.01 s	Haskell	2015-12-13 23:00:07
2	Matthew Craven	0.01 s	Haskell	2019-10-14 01:00:29

#	User	Runtime	Language	Date
1	Hà Minh Ngọc	0.06 s	Java	2016-06-07 10:30:11
2	Liam Keliher	0.07 s	Java	2016-05-21 02:38:51
3	Erik Baalhuis	0.07 s	Java	2016-08-08 19:17:55
4	Lars Corbijn	0.07 s	Java	2016-10-16 21:48:01
5	Joshua Linge	0.08 s	Java	2015-03-26 16:11:03
6	Micah Stairs	0.08 s	Java	2017-01-03 01:46:40
7	Finn Lidbetter	0.09 s	Java	2016-06-06 04:06:21
8	Kadin Tang	0.09 s	Java	2020-09-17 06:02:44
9	Zhen Lin	0.10 s	Java	2016-04-30 03:12:12
10	Mohamed Ali Rachid	0.10 s	Java	2020-02-18 04:06:35

#	User	Runtime	Language	Date
1	Phường Lên	0.19 s	Kotlin	2020-04-30 02:44:42
2	Jacob Huebner	0.20 s	Kotlin	2020-03-21 04:13:09

#	User	Runtime	Language	Date
1	Josenildo Silva	0.04 s	Python 2	2018-04-19 22:58:20
2	Andreas Björklund	0.05 s	Python 2	2021-02-09 16:32:32

#	User	Runtime	Language	Date
1	Hrant Hovhannisyan	0.05 s	Python 3	2025-12-17 04:58:23
2	Nicholas Russell Saerang	0.06 s	Python 3	2023-07-08 04:24:43
3	alexandre dewilde	0.06 s	Python 3	2023-08-03 15:36:30
4	Kristoffer Åhgren	0.08 s	Python 3	2018-08-25 16:02:03
5	Erik Buis	0.08 s	Python 3	2022-05-27 16:54:43
6	vance	0.09 s	Python 3	2020-03-05 05:15:56
7	Dan Baterisna	0.09 s	Python 3	2021-02-06 09:30:05
8	Ahmed Siadomar	0.09 s	Python 3	2023-05-01 20:40:00
9	Mathias Tejs	0.10 s	Python 3	2020-11-04 17:43:55
10	Lawry Sorenson	0.11 s	Python 3	2022-03-09 19:35:57

#	User	Length	Language	Date
1	Ivan Petrov	1105	C	2019-07-22 09:55:39

#	User	Length	Language	Date
1	Johan Wind	458	C++	2017-05-13 18:00:09
2	Mathias Gernez	513	C++	2025-09-10 13:52:18
3	Antonio Molina Lovett	571	C++	2016-02-08 08:25:42
4	Hongbo Zhang	648	C++	2015-03-21 22:43:56
5	Frederick Pek	679	C++	2021-04-11 08:22:49
6	ณัฐวุฒิ เจนศักดิ์ดา	722	C++	2024-02-28 05:53:01
7	Lam Gia Thuan	729	C++	2016-11-08 16:58:22
8	Clement Oh	753	C++	2023-12-03 07:46:07
9	Thiago Felipe Bastos da Silva	766	C++	2020-11-17 23:04:22
10	Hidden user	769	C++	2019-04-22 03:53:17

#	User	Length	Language	Date
1	Bjørn Dons	1221	Go	2023-07-26 22:23:50

#	User	Length	Language	Date
1	Matthew Craven	817	Haskell	2019-10-14 01:00:29
2	Wilfried van Asten	15094	Haskell	2015-12-13 23:00:07

#	User	Length	Language	Date
1	Charles Koenig	834	Java	2015-03-25 22:14:40
2	Stephen Royal	837	Java	2015-03-21 21:02:50
3	Lucas Wood	876	Java	2017-04-22 04:01:20
4	Evan Dorundo	1243	Java	2015-03-21 22:37:48
5	Brent Baas	1484	Java	2020-11-12 23:09:02
6	Joshua Kirstein	1489	Java	2016-09-29 06:38:03
7	Frank Ruskey	1637	Java	2017-04-06 23:58:31
8	Erik Baalhuis	1794	Java	2016-08-08 19:17:55
9	Mohamed Ali Rachid	1795	Java	2020-02-18 04:06:35
10	Doug Goodman	1799	Java	2020-07-09 19:06:59

#	User	Length	Language	Date
1	Jacob Huebner	1214	Kotlin	2020-03-21 04:19:08
2	Phường Lên	1599	Kotlin	2020-04-30 02:44:42

#	User	Length	Language	Date
1	Andreas Björklund	396	Python 2	2021-02-09 16:32:32
2	Josenildo Silva	779	Python 2	2018-04-19 22:58:20

#	User	Length	Language	Date
1	alexandre dewilde	441	Python 3	2023-08-03 15:36:30
2	Nicholas Russell Saerang	596	Python 3	2023-07-08 04:24:43
3	Ahmed Siadomar	619	Python 3	2023-05-01 20:40:00
4	Lawry Sorenson	681	Python 3	2022-03-09 19:35:57
5	Hrant Hovhannisyan	685	Python 3	2025-12-17 04:58:23
6	Mathias Tejs	797	Python 3	2020-11-04 17:43:55
7	Kristoffer Åhgren	1295	Python 3	2018-08-25 16:02:03
8	Erik Buis	1332	Python 3	2022-05-27 16:54:43
9	vance	1454	Python 3	2020-03-05 05:15:56
10	Hidden user	1456	Python 3	2019-08-06 17:09:34

Solution running time distribution