Problem B
Fountain — Problem Statistics

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Submissions	2803
Accepted submissions	1277
Submission ratio	45.56%
Authors	1040
Full solves [?]	965
Full solve Ratio	92.79%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2020-09-04 16:03:42
2	Sambit Palit	0.00 s	C	2020-10-22 02:00:33
3	Brage Isak Keiserås Bakkane	0.00 s	C	2021-01-27 19:36:00
4	Sveinn Máni Jónsson	0.00 s	C	2021-03-03 16:21:57
5	Anton Siderud	0.00 s	C	2021-06-26 17:18:28
6	Conor O'Brien	0.00 s	C	2022-04-12 23:38:57
7	Xiaochi Wang	0.00 s	C	2022-09-17 01:59:07
8	Mirel Cosulschi	0.00 s	C	2022-11-05 13:43:32
9	Shriraam U V	0.00 s	C	2025-03-31 05:37:56

#	User	Runtime	Language	Date
1	Yuwono Bangun Nagoro	0.02 s	C#	2022-09-01 02:04:06
2	Eric Weiss	0.02 s	C#	2022-10-03 19:16:59
3	Göran Andersson	0.05 s	C#	2022-05-31 11:37:15
4	Henrik Hallbert	0.06 s	C#	2020-08-26 20:44:02

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.04 s	F#	2022-12-31 17:03:07

#	User	Runtime	Language	Date
1	Dylan	0.01 s	Go	2025-09-23 23:28:30
2	Yitian Wang	0.02 s	Go	2023-03-16 04:10:30
3	Norbert Voelker	0.07 s	Go	2021-06-29 22:28:37
4	Erlend Fonnes	0.08 s	Go	2021-01-31 15:19:59
5	Resa Renaldy	0.08 s	Go	2021-08-03 11:59:56
6	Noah Friedman	0.08 s	Go	2021-10-20 15:01:26

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Haskell	2021-06-01 11:57:54

#	User	Runtime	Language	Date
1	Bjørn Dons	0.06 s	Java	2020-09-14 21:18:55
2	Sven Rönnbäck	0.06 s	Java	2022-04-15 10:47:37
3	Ryan Tan	0.06 s	Java	2022-07-02 08:57:46
4	Sari Amin	0.06 s	Java	2022-09-06 16:20:14
5	Nguyen Hong Ngoc	0.06 s	Java	2022-11-14 08:34:53
6	Peter Jin	0.06 s	Java	2022-11-19 21:51:38
7	Luke Eales	0.06 s	Java	2023-06-12 15:27:56
8	Jason	0.06 s	Java	2023-06-18 08:08:29
9	Axel Nilsson	0.06 s	Java	2023-07-10 22:19:25
10	Hidden user	0.06 s	Java	2023-10-29 21:02:08

#	User	Runtime	Language	Date
1	Andoko Chandra	0.42 s	JavaScript (Node.js)	2020-10-24 06:32:29
2	Mikael Fiala-Lundström	0.42 s	JavaScript (Node.js)	2021-06-18 22:27:44
3	ChaosOp	0.45 s	JavaScript (Node.js)	2021-04-18 17:22:58
4	Peter Kedemo	0.45 s	JavaScript (Node.js)	2022-01-04 10:58:12

#	User	Runtime	Language	Date
1	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-27 10:46:53
2	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2020-08-23 15:02:25
3	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-03-10 16:07:36
4	Zach Tschetter	0.04 s	JavaScript (SpiderMonkey)	2023-06-10 00:23:56

#	User	Runtime	Language	Date
1	Timothy Gaede	0.62 s	Julia	2024-05-12 09:02:50

#	User	Runtime	Language	Date
1	Phường Lên	0.15 s	Kotlin	2020-08-23 22:19:49
2	Martijn Muijsers	0.21 s	Kotlin	2024-05-31 22:15:54
3	Adam Rankin	0.25 s	Kotlin	2023-05-08 23:59:57
4	Morten Bergmann	0.31 s	Kotlin	2021-01-23 00:32:43

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.01 s	Pascal	2020-10-03 06:46:10

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.06 s	Prolog	2022-12-06 09:21:05

#	User	Runtime	Language	Date
1	Thomas Feld	0.04 s	Python 2	2020-09-09 15:43:53
2	Andreas Björklund	0.04 s	Python 2	2020-09-10 20:24:00
3	Yanmarshus Bachtiar	0.04 s	Python 2	2020-09-12 11:09:40
4	Måns Magnusson	0.04 s	Python 2	2020-09-18 21:29:39
5	Lars Åström	0.04 s	Python 2	2020-11-14 14:31:01

#	User	Runtime	Language	Date
1	Nate Baker	0.04 s	Python 3	2025-09-24 15:23:15
2	vanja xexexe	0.05 s	Python 3	2022-07-20 10:34:58
3	Yohannes Melese	0.05 s	Python 3	2022-09-05 20:12:45
4	Brian Zhu	0.05 s	Python 3	2022-11-13 21:03:58
5	Varun Asuri	0.05 s	Python 3	2022-11-18 01:11:49
6	Daniel Hong	0.05 s	Python 3	2022-11-18 21:38:00
7	Hidden user	0.05 s	Python 3	2023-03-13 20:17:51
8	Martynas	0.05 s	Python 3	2023-03-13 20:28:36
9	Ri He	0.05 s	Python 3	2023-03-19 08:07:40
10	Atli Fannar Franklín	0.05 s	Python 3	2023-03-27 16:19:19

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	Ruby	2020-09-09 12:37:27
2	Miorel Palii	0.05 s	Ruby	2022-03-14 07:30:02
3	Jonathan Naumanen	0.07 s	Ruby	2024-02-13 12:53:55

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-02-17 12:48:01
2	Aaron Lengyel	0.00 s	Rust	2023-04-15 22:14:56
3	Simon Hallefält	0.00 s	Rust	2023-07-22 14:05:11
4	Freek van Keulen	0.00 s	Rust	2023-10-13 07:59:02
5	David Rasch	0.00 s	Rust	2023-11-16 12:31:48
6	gard heine kalland	0.00 s	Rust	2024-06-16 18:23:41
7	Vincent Lagerros	0.00 s	Rust	2025-07-08 22:11:08
8	Eric Riddle	0.00 s	Rust	2025-10-07 20:40:44
9	Isak Jägberg	0.02 s	Rust	2020-10-24 21:02:39

#	User	Length	Language	Date
1	Mirel Cosulschi	945	C	2022-11-05 13:43:32
2	Brage Isak Keiserås Bakkane	1063	C	2021-01-27 19:36:00
3	Anton Siderud	1126	C	2021-06-26 17:18:28
4	Sambit Palit	1203	C	2020-10-22 02:00:33
5	Shriraam U V	1211	C	2025-03-31 05:37:56
6	Conor O'Brien	1338	C	2022-04-12 23:38:57
7	Xiaochi Wang	1814	C	2022-09-17 01:59:07
8	Bergur Snorrason	2159	C	2020-09-04 16:03:42
9	Sveinn Máni Jónsson	2415	C	2021-03-03 16:21:57

#	User	Length	Language	Date
1	Göran Andersson	1414	C#	2022-05-31 11:37:15
2	Eric Weiss	2312	C#	2022-10-03 19:16:59
3	Henrik Hallbert	3296	C#	2020-08-26 20:44:02
4	Yuwono Bangun Nagoro	3389	C#	2022-09-01 02:04:06

#	User	Length	Language	Date
1	接棒程式設計學院	613	C++	2021-02-27 05:25:11
2	黃浚瑜	614	C++	2022-02-09 02:41:04
3	Yeung Man Tsung	617	C++	2022-11-20 11:07:23
4	Zac Friggstad	621	C++	2020-09-09 00:22:15
5	Dmitry Lyubshin	627	C++	2023-03-30 14:48:55
6	Armen Andreasyan	678	C++	2020-09-06 17:05:13
7	Magnus Hegdahl	681	C++	2021-06-29 02:09:47
8	Christian Yongwhan Lim	701	C++	2023-06-16 16:47:27
9	Tasha Boen	707	C++	2020-11-11 14:59:00
10	Dorian Ticona	708	C++	2024-07-05 07:42:37

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	1540	F#	2022-12-31 17:03:07

#	User	Length	Language	Date
1	Norbert Voelker	1040	Go	2021-06-29 22:28:37
2	Noah Friedman	1125	Go	2021-10-20 15:01:26
3	Resa Renaldy	1539	Go	2021-08-03 11:59:56
4	Yitian Wang	1569	Go	2023-03-16 04:11:29
5	Dylan	1635	Go	2025-09-23 23:28:30
6	Erlend Fonnes	4437	Go	2021-01-31 15:19:59

#	User	Length	Language	Date
1	Hidden user	17252	Haskell	2021-06-01 11:57:54

#	User	Length	Language	Date
1	Emilie Hyslop	879	Java	2022-03-11 06:37:43
2	Doug Goodman	1138	Java	2021-06-02 20:10:10
3	Jonas Moll	1199	Java	2023-08-03 18:06:34
4	Nick Hargrove	1223	Java	2022-05-09 22:39:31
5	Nick Hargrove	1223	Java	2022-05-09 22:50:14
6	Justin Lindberg	1254	Java	2025-09-29 07:24:43
7	Anita Furtado	1284	Java	2022-03-11 07:03:29
8	Andreas Guldborg Hansen	1321	Java	2021-11-12 11:35:56
9	Paula Arnold	1335	Java	2020-10-02 15:10:34
10	Ben Cobb	1342	Java	2022-11-24 04:12:37

#	User	Length	Language	Date
1	Peter Kedemo	1050	JavaScript (Node.js)	2022-01-04 10:58:12
2	Andoko Chandra	1653	JavaScript (Node.js)	2020-10-24 06:32:29
3	Mikael Fiala-Lundström	2843	JavaScript (Node.js)	2021-06-18 22:27:44
4	ChaosOp	2957	JavaScript (Node.js)	2021-04-18 17:22:58

#	User	Length	Language	Date
1	Jimmy Gustafsson	324	JavaScript (SpiderMonkey)	2024-07-27 10:46:53
2	Zach Tschetter	677	JavaScript (SpiderMonkey)	2023-06-10 00:24:39
3	Christian Pilegaard Cederquist	803	JavaScript (SpiderMonkey)	2023-03-10 16:07:36
4	Bjørn Chr. Soltvedt	939	JavaScript (SpiderMonkey)	2020-08-23 15:02:25

#	User	Length	Language	Date
1	Timothy Gaede	1795	Julia	2024-05-12 09:02:50

#	User	Length	Language	Date
1	Adam Rankin	851	Kotlin	2023-05-08 23:59:57
2	Martijn Muijsers	1586	Kotlin	2024-05-31 22:15:54
3	Phường Lên	1787	Kotlin	2020-08-23 22:19:49
4	Morten Bergmann	1948	Kotlin	2021-01-23 00:32:43

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1169	Pascal	2020-10-03 06:46:10

#	User	Length	Language	Date
1	Andriy Zyevakov	2401	Prolog	2022-12-06 09:21:05

#	User	Length	Language	Date
1	Thomas Feld	472	Python 2	2020-09-09 15:43:53
2	Andreas Björklund	597	Python 2	2020-09-10 20:24:00
3	Lars Åström	618	Python 2	2020-11-14 14:31:01
4	Måns Magnusson	822	Python 2	2020-09-18 21:29:39
5	Yanmarshus Bachtiar	874	Python 2	2020-09-12 11:09:40

#	User	Length	Language	Date
1	Rachel Krohn	360	Python 3	2025-09-15 17:11:38
2	Benjamin Z White	361	Python 3	2023-05-20 20:14:26
3	Ahmed Chamseddine	366	Python 3	2024-08-06 11:09:56
4	Yong Mao	390	Python 3	2023-05-26 16:53:53
5	Noah Hessen Bjerke	407	Python 3	2023-12-07 21:34:08
6	Lim Yong Sheng	414	Python 3	2023-11-12 04:32:11
7	Oskar Haarklou Veileborg	441	Python 3	2020-09-04 15:33:58
8	Hrant Hovhannisyan	495	Python 3	2025-12-26 06:25:06
9	Coleton Kotch	513	Python 3	2020-10-30 02:30:53
10	Martynas	516	Python 3	2023-03-13 20:28:36

#	User	Length	Language	Date
1	Hidden user	423	Ruby	2020-09-09 12:37:27
2	Miorel Palii	545	Ruby	2022-03-14 07:30:02
3	Jonathan Naumanen	856	Ruby	2024-02-13 12:53:55

#	User	Length	Language	Date
1	David Rasch	881	Rust	2023-11-16 12:31:48
2	Vincent Lagerros	1149	Rust	2025-07-08 22:11:08
3	Simon Hallefält	1602	Rust	2023-07-22 14:05:11
4	Freek van Keulen	1656	Rust	2023-10-13 07:59:02
5	Bas Dirks	2468	Rust	2022-02-17 12:48:01
6	Eric Riddle	3342	Rust	2025-10-07 20:40:44
7	gard heine kalland	3598	Rust	2024-06-16 18:23:41
8	Isak Jägberg	5290	Rust	2020-10-24 21:02:39
9	Aaron Lengyel	5776	Rust	2023-04-15 22:14:56

Solution running time distribution