Problem C
Build Dependencies — Problem Statistics

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Submissions	14417
Accepted submissions	4000
Submission ratio	27.75%
Authors	3033
Full solves [?]	2471
Full solve Ratio	81.47%

#	User	Runtime	Language	Date
1	Hidden user	0.08 s	C	2017-07-17 02:35:22
2	Bernd Schmidt	0.12 s	C	2017-05-13 05:32:50
3	Mirel Cosulschi	0.24 s	C	2022-11-28 22:45:06
4	YD	0.24 s	C	2024-10-14 09:47:03
5	Ioannis Br	0.42 s	C	2024-12-07 19:34:30
6	Sanjiv Dinakar	0.47 s	C	2023-06-07 06:11:21
7	Yannik Mahlau	3.18 s	C	2019-10-22 16:09:15

#	User	Runtime	Language	Date
1	Johan Gustafsson	0.44 s	C#	2024-06-21 05:51:41
2	Dick Appel	0.59 s	C#	2018-05-26 19:24:10
3	Peti29	0.67 s	C#	2017-05-15 21:22:36
4	Rafael Steffen Nguyen Jensen	0.86 s	C#	2025-03-12 18:37:06
5	Patrik Hammersborg	0.87 s	C#	2018-01-31 09:13:17
6	Nathan Andrews	1.00 s	C#	2024-10-25 21:52:11
7	Denis Traunter	1.06 s	C#	2024-02-18 12:38:34
8	Viktor Máni Mönster	1.09 s	C#	2020-05-18 13:13:26
9	Viktor Máni	1.12 s	C#	2020-05-14 15:37:06
10	Akshay Patel	1.12 s	C#	2020-11-09 01:42:27

#	User	Runtime	Language	Date
1	Hidden user	0.09 s	C++	2017-07-17 02:22:57
2	Maciej Goszczycki	0.15 s	C++	2017-10-17 01:10:19
3	Lin Lee	0.16 s	C++	2017-06-06 12:14:54
4	Agis Daniels	0.17 s	C++	2021-12-12 15:02:43
5	Nicolas Testu	0.17 s	C++	2023-07-29 11:43:17
6	Evan Michael Bailey	0.18 s	C++	2021-05-01 17:44:30
7	Alexander Kravberg	0.18 s	C++	2022-11-07 22:08:17
8	Geralt of Rivia	0.19 s	C++	2022-05-20 00:46:09
9	Othon Ishiyi	0.20 s	C++	2024-07-26 01:06:59
10	Thao-Ly Nguyen-Thanh	0.21 s	C++	2019-09-04 05:28:30

#	User	Runtime	Language	Date
1	Andreas Severin Hauch Trøstrup	0.55 s	Crystal	2024-12-05 18:14:59

#	User	Runtime	Language	Date
1	Nathan Lee	0.36 s	Go	2025-10-30 20:18:59
2	Norbert Voelker	0.42 s	Go	2023-04-15 15:02:04
3	Jonas Mittnacht	0.61 s	Go	2024-02-14 14:18:32
4	Ola Dahl	0.70 s	Go	2023-01-29 11:43:17
5	Zhu Junhui	0.85 s	Go	2022-11-27 12:33:21
6	Cao Shengze	0.90 s	Go	2022-11-27 05:10:52
7	Krzysztof Gibuła	1.15 s	Go	2021-05-09 17:07:40

#	User	Runtime	Language	Date
1	Øyvind Almli	2.90 s	Haskell	2023-07-10 17:00:20

#	User	Runtime	Language	Date
1	jun009	0.57 s	Java	2018-11-05 09:44:38
2	Asmus Tørsleff	0.76 s	Java	2022-03-01 12:30:14
3	Bjørn Dons	0.77 s	Java	2018-12-14 22:12:05
4	Herman Appelgren	0.81 s	Java	2018-04-05 23:46:41
5	Tore Aadland	0.82 s	Java	2018-11-02 12:26:26
6	Øystein H Nordberg	0.83 s	Java	2018-10-31 13:24:36
7	Max Holmberg	0.84 s	Java	2020-09-30 18:02:33
8	Martijn Muijsers	0.85 s	Java	2016-10-27 20:49:49
9	Espen Rong	0.85 s	Java	2018-11-07 13:52:41
10	Joakim Sunde	0.86 s	Java	2018-10-23 12:52:19

#	User	Runtime	Language	Date
1	Christopher Walther	0.71 s	JavaScript (SpiderMonkey)	2021-06-04 20:51:15
2	Christian Pilegaard Cederquist	1.34 s	JavaScript (SpiderMonkey)	2023-06-17 05:14:10

#	User	Runtime	Language	Date
1	Hidden user	1.17 s	Julia	2025-03-12 17:24:26

#	User	Runtime	Language	Date
1	Phường Lên	1.12 s	Kotlin	2020-01-25 21:55:21
2	Adam Rankin	1.49 s	Kotlin	2023-09-23 00:00:54
3	Danny Mittal	1.53 s	Kotlin	2025-10-13 21:42:53
4	Aksel Holbek Sørbye	1.59 s	Kotlin	2025-10-11 09:31:27
5	Rasib Nadeem	1.70 s	Kotlin	2023-11-09 16:53:08
6	Min-Zheng Shieh	1.95 s	Kotlin	2021-06-11 07:38:28
7	Mohsen Dehbashi	2.27 s	Kotlin	2019-11-02 08:44:59
8	Navya Zaveri	2.35 s	Kotlin	2019-11-24 02:51:53
9	Hidden user	3.45 s	Kotlin	2019-11-28 23:47:39

#	User	Runtime	Language	Date
1	Caleb Austin	1.13 s	Lua	2024-10-25 21:58:50

#	User	Runtime	Language	Date
1	Hidden user	2.09 s	OCaml	2022-10-28 23:37:53

#	User	Runtime	Language	Date
1	Juliang Li	0.42 s	Python 2	2018-03-26 05:00:24
2	Tyler Durden	0.44 s	Python 2	2018-03-28 15:20:39
3	Lim Hong Hui Eugene	0.50 s	Python 2	2019-04-04 06:19:50
4	Hermon Mulat	0.53 s	Python 2	2019-05-13 14:40:13
5	许子豪	0.53 s	Python 2	2022-08-09 03:10:52
6	Sam H	0.54 s	Python 2	2020-02-21 03:56:38
7	kreativt namn jag vet	0.54 s	Python 2	2021-01-13 14:39:46
8	Saikumar Yadugiri	0.54 s	Python 2	2022-09-24 20:08:02
9	Anton Lyxell	0.56 s	Python 2	2019-11-16 15:21:04
10	John Paul Hanson	0.60 s	Python 2	2017-09-17 23:11:08

#	User	Runtime	Language	Date
1	Nikolaj Munk Binder Jensen	0.50 s	Python 3	2025-02-27 14:32:20
2	Adrian Borup	0.51 s	Python 3	2023-02-28 14:15:53
3	Victor Gram Mortensen	0.52 s	Python 3	2022-03-01 11:36:19
4	Hidden user	0.52 s	Python 3	2022-04-24 03:06:22
5	Andreas Guldborg Hansen	0.52 s	Python 3	2024-10-08 12:45:12
6	Oscar Kjøs Holli	0.52 s	Python 3	2025-10-19 11:49:02
7	Maksim Segen	0.53 s	Python 3	2025-05-19 23:00:10
8	Max Wang	0.53 s	Python 3	2025-10-14 15:13:41
9	Boas Kluiving	0.54 s	Python 3	2018-11-16 17:47:12
10	Carrie Bergstedt	0.54 s	Python 3	2019-10-29 17:10:57

#	User	Runtime	Language	Date
1	Andreas Severin Hauch Trøstrup	0.97 s	Ruby	2023-02-28 19:04:34

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.05 s	Rust	2025-05-06 23:28:35
2	Joe Blower	0.16 s	Rust	2025-08-14 00:13:44
3	Adrian Borup	0.18 s	Rust	2023-03-01 20:25:12
4	Morten Lohne	0.21 s	Rust	2018-11-07 00:56:20
5	Harry Coleman	0.32 s	Rust	2022-05-04 02:39:58
6	Gustaf Bergmark	0.35 s	Rust	2023-02-22 14:34:27
7	Egor Kulikov	0.35 s	Rust	2024-11-19 09:25:51
8	Fiat Driver	0.38 s	Rust	2023-07-08 16:36:31
9	Albert Rise Nielsen	0.41 s	Rust	2023-02-28 15:46:15
10	Bas Dirks	0.43 s	Rust	2024-02-10 11:00:32

#	User	Runtime	Language	Date
1	Danial Haseeb	1.59 s	Swift	2023-12-07 08:58:44

#	User	Length	Language	Date
1	Mirel Cosulschi	2847	C	2022-11-28 22:45:06
2	Yannik Mahlau	3401	C	2019-10-22 16:09:15
3	Hidden user	3536	C	2017-07-17 02:46:23
4	Bernd Schmidt	3656	C	2017-05-13 05:32:50
5	YD	4413	C	2024-10-14 09:47:03
6	Sanjiv Dinakar	6022	C	2023-06-07 06:11:21
7	Ioannis Br	6649	C	2024-12-07 19:42:53

#	User	Length	Language	Date
1	Nathan Andrews	1006	C#	2024-10-25 21:52:11
2	Johan Gustafsson	1058	C#	2024-06-21 05:22:22
3	Rafael Steffen Nguyen Jensen	1575	C#	2025-03-12 18:37:06
4	Denis Traunter	1601	C#	2024-02-18 12:37:23
5	Mike Garrett	2083	C#	2019-03-13 21:36:55
6	Akshay Patel	2256	C#	2020-11-09 01:42:27
7	Peti29	2526	C#	2017-05-17 22:28:33
8	Viktor Máni Mönster	2677	C#	2020-05-18 13:13:26
9	Viktor Máni	2679	C#	2020-05-14 15:37:06
10	Patrik Hammersborg	2855	C#	2018-01-31 09:00:17

#	User	Length	Language	Date
1	Alessandro Minisini	497	C++	2022-12-03 13:01:45
2	Ale Mini	497	C++	2022-12-03 13:08:46
3	Josenildo Silva	603	C++	2017-05-10 22:09:16
4	Hidden user	618	C++	2019-04-21 11:21:29
5	Rishab Pallepati	651	C++	2021-01-17 17:49:52
6	Karol Farbiś	675	C++	2016-05-22 08:47:49
7	Christian Yongwhan Lim	683	C++	2023-06-14 23:58:03
8	Minh Nguyen	688	C++	2019-01-30 07:07:33
9	Neo Neng Kai Nigel	694	C++	2019-04-02 04:54:45
10	Ismail Alrifai	696	C++	2021-07-08 10:33:43

#	User	Length	Language	Date
1	Andreas Severin Hauch Trøstrup	631	Crystal	2024-12-05 18:14:59

#	User	Length	Language	Date
1	Krzysztof Gibuła	987	Go	2021-05-09 17:07:40
2	Jonas Mittnacht	1042	Go	2024-02-14 14:18:32
3	Norbert Voelker	1372	Go	2023-04-15 15:11:38
4	Zhu Junhui	1558	Go	2022-11-27 12:33:21
5	Ola Dahl	2268	Go	2023-01-29 11:43:17
6	Cao Shengze	2408	Go	2022-11-27 05:10:52
7	Nathan Lee	3602	Go	2025-10-30 20:18:59

#	User	Length	Language	Date
1	Øyvind Almli	704	Haskell	2023-07-10 17:47:04

#	User	Length	Language	Date
1	Hidden user	1028	Java	2023-03-14 23:19:53
2	Benjamin Laurence Erickson	1101	Java	2016-07-15 04:40:14
3	Kurtis Van Gent	1164	Java	2016-07-07 15:45:04
4	Mario Lorenzo	1187	Java	2019-10-10 16:46:41
5	Hidden user	1258	Java	2025-10-24 06:18:14
6	Steven Halim	1277	Java	2025-10-23 02:37:34
7	Dhiraputta Pathama Tengara	1281	Java	2023-11-19 08:35:57
8	Taras Romanyuk	1281	Java	2024-06-04 21:50:30
9	Zhai Jiayi	1281	Java	2025-10-26 07:12:09
10	April Chao	1283	Java	2022-04-29 04:56:38

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	1221	JavaScript (SpiderMonkey)	2023-06-17 05:14:10
2	Christopher Walther	2660	JavaScript (SpiderMonkey)	2021-06-04 20:51:15

#	User	Length	Language	Date
1	Hidden user	710	Julia	2025-03-12 17:24:26

#	User	Length	Language	Date
1	Mohsen Dehbashi	657	Kotlin	2019-11-02 08:44:59
2	Danny Mittal	727	Kotlin	2025-10-13 21:42:53
3	Adam Rankin	761	Kotlin	2023-09-23 00:00:54
4	Min-Zheng Shieh	914	Kotlin	2021-06-11 07:38:28
5	Hidden user	1229	Kotlin	2019-11-28 23:47:39
6	Phường Lên	1491	Kotlin	2020-01-25 21:55:21
7	Rasib Nadeem	1634	Kotlin	2023-11-09 16:54:35
8	Navya Zaveri	1823	Kotlin	2019-11-24 02:51:53
9	Aksel Holbek Sørbye	27464	Kotlin	2025-10-11 09:31:27

#	User	Length	Language	Date
1	Caleb Austin	1056	Lua	2024-10-25 21:58:50

#	User	Length	Language	Date
1	Hidden user	1632	OCaml	2022-10-28 23:04:02

#	User	Length	Language	Date
1	Thomas Feld	350	Python 2	2023-05-09 09:41:50
2	Lim Hong Hui Eugene	518	Python 2	2019-04-04 06:19:50
3	Steven Hwang	551	Python 2	2020-06-28 15:31:31
4	John Paul Hanson	715	Python 2	2017-09-17 23:11:08
5	Justin Su	753	Python 2	2019-09-14 07:44:48
6	Anton Lyxell	820	Python 2	2019-11-16 15:22:46
7	Yupeng Gu	831	Python 2	2018-04-18 17:23:52
8	Kevin Tang	862	Python 2	2019-04-18 21:45:33
9	Agis Daniels	942	Python 2	2021-12-12 15:39:47
10	Hermon Mulat	945	Python 2	2019-05-13 14:40:13

#	User	Length	Language	Date
1	Jaydan Aladro	290	Python 3	2023-11-29 22:31:02
2	Kelly Dance	373	Python 3	2022-09-27 17:53:15
3	Tistou	410	Python 3	2023-01-28 17:24:05
4	Niels Christian Skov Faber	414	Python 3	2024-03-05 07:26:06
5	Fang Jiaqi	419	Python 3	2022-11-19 04:23:44
6	Wong Tse Jian	420	Python 3	2022-11-19 04:23:22
7	Ziyan Zhang	422	Python 3	2022-11-19 04:22:15
8	Lukas Kerren	429	Python 3	2024-05-07 00:07:23
9	Nicholas Russell Saerang	437	Python 3	2022-03-24 05:24:43
10	Hidden user	439	Python 3	2022-05-03 03:05:34

#	User	Length	Language	Date
1	Andreas Severin Hauch Trøstrup	575	Ruby	2023-02-28 18:48:06

#	User	Length	Language	Date
1	Lukas Dutrieux	1508	Rust	2025-11-06 20:11:08
2	Adrian Borup	1513	Rust	2023-03-01 20:25:12
3	Bas Dirks	1797	Rust	2024-02-10 11:00:32
4	Andreas Just Petersen	1809	Rust	2023-03-06 12:07:31
5	Albert Rise Nielsen	1825	Rust	2023-02-28 15:46:15
6	Morten Lohne	1983	Rust	2018-11-06 00:00:25
7	Fiat Driver	2069	Rust	2023-07-08 16:36:31
8	Vincent Lagerros	2084	Rust	2024-05-15 19:30:21
9	Harry Coleman	2279	Rust	2022-05-04 00:50:32
10	Mckinley Xie	2568	Rust	2025-03-23 04:04:54

#	User	Length	Language	Date
1	Danial Haseeb	1187	Swift	2023-12-07 08:58:44

Solution running time distribution