Problem C
Frosh Week — Problem Statistics

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Submissions	9437
Accepted submissions	2632
Submission ratio	27.89%
Authors	2115
Full solves [?]	1515
Full solve Ratio	71.63%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.14 s	C	2023-03-21 10:25:58
2	Þórður Agust	0.15 s	C	2019-03-26 13:22:47
3	Eyleifur Bjarkason	0.15 s	C	2019-10-26 17:09:08
4	Nicholas Teh	0.20 s	C	2018-09-02 03:58:29
5	Jing Yuan Tan	0.20 s	C	2018-10-17 17:16:21
6	Steffen Andrè Grønmo	0.20 s	C	2019-03-15 17:16:48
7	Joshua Lay	0.20 s	C	2019-08-28 17:26:18
8	Hidden user	0.20 s	C	2019-09-27 04:26:27
9	Ivy Tan	0.20 s	C	2019-09-27 04:31:42
10	Hidden user	0.21 s	C	2018-08-04 21:01:03

#	User	Runtime	Language	Date
1	Lecio	1.73 s	C#	2025-09-17 07:50:41

#	User	Runtime	Language	Date
1	Neo Yu Yao Terence	0.00 s	C++	2019-03-21 10:14:24
2	Yang Chenglong	0.00 s	C++	2019-05-03 17:05:26
3	Fredrik Präntare	0.14 s	C++	2016-09-16 02:20:29
4	Oskar Lundin	0.14 s	C++	2018-11-21 15:40:26
5	Chen Shenghao	0.14 s	C++	2019-01-11 04:10:10
6	Steven Halim	0.14 s	C++	2019-02-20 03:31:46
7	Mark Wong Tau Yew	0.14 s	C++	2019-09-06 17:33:44
8	Agis Daniels	0.15 s	C++	2020-02-16 17:20:01
9	Harrison Shen	0.15 s	C++	2020-04-09 18:12:09
10	Lukas Rickie	0.15 s	C++	2021-08-21 08:22:14

#	User	Runtime	Language	Date
1	Hidden user	0.68 s	Common Lisp	2019-08-05 00:20:49

#	User	Runtime	Language	Date
1	Adam Engsig	0.23 s	Go	2023-05-11 11:05:13
2	Norbert Voelker	0.32 s	Go	2023-04-27 00:08:47
3	James Robb	0.82 s	Go	2020-04-30 23:40:57
4	James Robb	0.82 s	Go	2020-05-12 12:00:16
5	Vetle Håland Bergstad	0.91 s	Go	2019-03-13 16:23:35
6	Krzysztof Gibuła	1.66 s	Go	2024-10-27 00:48:32

#	User	Runtime	Language	Date
1	Vasiliy Kevroletin	1.63 s	Haskell	2018-05-25 08:28:05
2	Juan Miguel Vilar	2.45 s	Haskell	2020-08-27 17:52:21

#	User	Runtime	Language	Date
1	Jon Chua	0.09 s	Java	2019-12-12 10:30:47
2	Chen Shenghao	0.27 s	Java	2019-08-31 16:18:16
3	Bjørn Dons	0.28 s	Java	2018-10-22 19:54:31
4	Samuel Klingström	0.30 s	Java	2018-11-16 19:03:05
5	Asmus Tørsleff	0.31 s	Java	2022-02-01 15:08:59
6	Niu Xinyuan	0.33 s	Java	2018-07-11 06:40:22
7	Joachim Borup	0.33 s	Java	2023-01-31 19:50:22
8	Jiang Qin Hua	0.34 s	Java	2018-07-10 07:52:50
9	Ren Xingyu	0.34 s	Java	2018-07-10 14:36:24
10	Tan Jin Jie	0.34 s	Java	2018-07-25 09:15:23

#	User	Runtime	Language	Date
1	Christian Cederquist	2.72 s	JavaScript (SpiderMonkey)	2023-06-22 23:41:22

#	User	Runtime	Language	Date
1	Noszály Csaba	1.04 s	Julia	2025-03-08 07:25:34

#	User	Runtime	Language	Date
1	Phường Lên	0.64 s	Kotlin	2020-03-24 03:48:56
2	Hidden user	0.66 s	Kotlin	2020-03-21 08:05:03

#	User	Runtime	Language	Date
1	Guan Yang Ze	0.63 s	Python 2	2020-11-13 14:42:50
2	Sergey Pashkovsky	0.67 s	Python 2	2017-12-06 18:51:28
3	Hyungoo Lee	0.72 s	Python 2	2016-01-20 15:51:49
4	Yan Kalchevsky	0.76 s	Python 2	2017-02-07 11:51:46
5	Alfred Olsson	0.76 s	Python 2	2019-07-31 12:11:14
6	Hidden user	0.79 s	Python 2	2017-04-17 23:29:48
7	Martin Aumüller	0.82 s	Python 2	2019-04-12 22:41:16
8	Oskar Haarklou Veileborg	0.83 s	Python 2	2018-10-14 17:12:00
9	Akshdeep Sharma	0.87 s	Python 2	2019-10-23 20:19:46
10	Oskar Ottander	0.89 s	Python 2	2019-09-02 23:51:07

#	User	Runtime	Language	Date
1	Petr	0.55 s	Python 3	2025-06-18 18:59:57
2	Ole Vik Lysne	0.56 s	Python 3	2025-06-18 23:30:07
3	Nikolaj Munk Binder Jensen	0.60 s	Python 3	2025-01-31 11:54:11
4	David Becerra	0.62 s	Python 3	2020-05-05 16:23:17
5	Daniel Vædele Egdal	0.64 s	Python 3	2022-02-01 14:09:39
6	Teoh Jun Jie	0.65 s	Python 3	2022-12-15 21:06:53
7	Mariann Lepsøy	0.66 s	Python 3	2024-03-11 10:33:50
8	Kyle Gusdorf	0.67 s	Python 3	2020-11-11 20:37:34
9	Ram Basnet	0.67 s	Python 3	2023-12-20 05:03:42
10	Gabriel Caballero	0.67 s	Python 3	2024-11-08 04:54:51

#	User	Runtime	Language	Date
1	Andreas Severin Hauch Trøstrup	2.12 s	Ruby	2024-03-28 09:24:15
2	Hidden user	2.80 s	Ruby	2019-06-01 18:27:30

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.11 s	Rust	2024-06-02 21:24:40
2	Ole Vik Lysne	0.21 s	Rust	2024-02-29 22:19:13
3	Chaoyi Yin	0.22 s	Rust	2019-01-27 20:53:35
4	Ole Johan Walderhaug	0.23 s	Rust	2022-12-14 20:02:59
5	Chen Weikang	0.24 s	Rust	2019-01-28 04:02:33
6	Stian Soltvedt	0.24 s	Rust	2019-03-12 12:22:22
7	Albert Ross Johannessen	0.24 s	Rust	2024-02-03 15:22:08
8	Eskil Queseth	0.26 s	Rust	2020-09-11 00:47:33
9	Andreas Just Petersen	0.28 s	Rust	2023-01-31 15:59:34
10	Haggi Haggi	0.29 s	Rust	2020-02-22 22:14:31

#	User	Length	Language	Date
1	Ahmed Alae Boughdad	818	C	2016-09-07 13:49:45
2	Victor Zheng	876	C	2017-05-13 22:29:26
3	Marc Yang	906	C	2017-03-20 02:33:11
4	Nicholas Teh	906	C	2018-09-02 03:58:29
5	Jing Yuan Tan	906	C	2018-10-17 17:16:21
6	Joshua Lay	906	C	2019-08-28 17:26:18
7	Hidden user	906	C	2019-09-27 04:26:27
8	Muhammad Rais Fathin Mudzakir	934	C	2016-01-21 08:30:47
9	Howard Cheng	942	C	2021-09-24 20:37:18
10	Jaan Jaerving	976	C	2022-03-22 00:55:13

#	User	Length	Language	Date
1	Lecio	1699	C#	2025-09-17 07:50:41

#	User	Length	Language	Date
1	Christian Yongwhan Lim	411	C++	2023-06-17 14:28:47
2	Santiago Ley	426	C++	2016-09-10 00:26:25
3	Sourav Sen Tonmoy	461	C++	2018-10-04 15:07:08
4	Hidden user	483	C++	2018-07-10 13:30:40
5	Man Hin Jeffrey Hon	506	C++	2012-10-24 17:29:18
6	Nathaniel Ang	507	C++	2020-02-06 03:42:23
7	Trần Đăng Khương	519	C++	2021-08-27 17:11:54
8	arda atci	522	C++	2021-09-23 23:18:59
9	Gabriel Stanculescu	525	C++	2025-01-31 20:24:26
10	Dhairya Patel	533	C++	2020-07-17 08:21:15

#	User	Length	Language	Date
1	Hidden user	1697	Common Lisp	2019-08-04 23:43:48

#	User	Length	Language	Date
1	Krzysztof Gibuła	1093	Go	2024-10-27 00:48:32
2	Norbert Voelker	1342	Go	2023-04-26 23:59:53
3	James Robb	1531	Go	2020-04-30 23:40:57
4	James Robb	1967	Go	2020-05-12 12:00:16
5	Vetle Håland Bergstad	2293	Go	2019-03-13 16:23:35
6	Adam Engsig	4093	Go	2021-07-23 10:32:44

#	User	Length	Language	Date
1	Juan Miguel Vilar	841	Haskell	2020-08-27 17:52:21
2	Vasiliy Kevroletin	4306	Haskell	2018-05-25 08:28:05

#	User	Length	Language	Date
1	Bergur Snorrason	954	Java	2024-04-03 11:23:22
2	Doug Goodman	968	Java	2017-12-04 20:07:20
3	Mouhssine Assaoud	1021	Java	2017-10-22 15:50:02
4	Hidden user	1095	Java	2019-12-30 02:53:59
5	Andre	1160	Java	2022-07-16 21:22:51
6	Duncan Page	1202	Java	2018-12-04 00:29:36
7	Árni Björn Óskarsson	1212	Java	2023-03-25 19:16:43
8	Otto Alexander Sutianto	1218	Java	2019-08-28 13:10:36
9	Quan Chau	1221	Java	2017-07-21 15:07:13
10	Kaung Htet Wai Yan	1239	Java	2023-06-25 09:16:21

#	User	Length	Language	Date
1	Christian Cederquist	537	JavaScript (SpiderMonkey)	2023-06-22 23:41:22

#	User	Length	Language	Date
1	Noszály Csaba	286	Julia	2025-03-08 07:25:34

#	User	Length	Language	Date
1	Phường Lên	1321	Kotlin	2020-03-24 03:48:56
2	Hidden user	1415	Kotlin	2020-03-21 08:05:03

#	User	Length	Language	Date
1	Andreas Björklund	568	Python 2	2020-03-08 15:54:47
2	Oskar Haarklou Veileborg	574	Python 2	2018-10-14 17:12:00
3	Alfred Olsson	643	Python 2	2019-07-31 12:11:14
4	Torstein Strømme	742	Python 2	2019-02-12 15:02:56
5	Frederik Højholt	764	Python 2	2016-09-13 16:00:22
6	Sergey Pashkovsky	780	Python 2	2017-12-06 18:55:37
7	Hidden user	781	Python 2	2017-04-17 23:29:48
8	Akshdeep Sharma	838	Python 2	2019-10-23 20:19:46
9	Oskar Ottander	932	Python 2	2019-09-02 23:51:07
10	Martin Aumüller	1073	Python 2	2019-04-12 22:41:16

#	User	Length	Language	Date
1	Michael Goldwasser	265	Python 3	2024-09-13 01:31:30
2	Viktor Már Guðmundsson	311	Python 3	2023-03-21 12:01:39
3	Kevin Yu	362	Python 3	2023-09-17 05:20:04
4	Björn Thor Stefánsson	363	Python 3	2024-04-03 17:18:37
5	Kristján Sölvi Örnólfsson	366	Python 3	2023-03-22 11:29:30
6	Albert Ross Johannessen	402	Python 3	2024-02-02 23:50:57
7	Kristján Dagur Egilsson	447	Python 3	2024-04-03 17:10:24
8	Nikola Katov	460	Python 3	2025-06-24 21:39:38
9	Martin Aumüller	529	Python 3	2023-01-30 20:26:45
10	Jón Oddur Ólafsson	535	Python 3	2024-04-03 17:18:50

#	User	Length	Language	Date
1	Hidden user	420	Ruby	2019-06-01 18:27:30
2	Andreas Severin Hauch Trøstrup	625	Ruby	2024-03-28 09:24:15

#	User	Length	Language	Date
1	Malte Kildelund Rosenkilde	1057	Rust	2025-02-04 10:02:27
2	Ole Vik Lysne	1083	Rust	2024-03-04 13:12:10
3	Albert Ross Johannessen	1151	Rust	2024-02-03 15:22:08
4	Artur Khuziakhmetov	1240	Rust	2022-08-11 12:06:11
5	Eskil Queseth	1384	Rust	2020-09-11 00:47:33
6	Lukas Dutrieux	1682	Rust	2025-09-17 20:44:41
7	Ole Johan Walderhaug	1718	Rust	2022-12-14 20:02:59
8	Chaoyi Yin	1925	Rust	2019-01-27 20:53:35
9	Andreas Just Petersen	2288	Rust	2023-01-31 15:59:34
10	Pahlevi Fikri Auliya	2486	Rust	2020-10-28 00:22:24

Solution running time distribution