Problem A
Cyanide Rivers — Problem Statistics

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Submissions	1011
Accepted submissions	493
Submission ratio	48.76%
Authors	427
Full solves [?]	397
Full solve Ratio	92.97%

#	User	Runtime	Language	Date
1	Danny Robinson	0.02 s	Bash	2023-09-06 20:28:45
2	Chenzhang Hu	0.03 s	Bash	2023-09-18 17:27:52
3	Thomas Feld	0.03 s	Bash	2023-09-26 10:52:52

#	User	Runtime	Language	Date
1	Leslie Yip	0.00 s	C	2022-10-21 06:23:17
2	April Clark	0.00 s	C	2023-07-20 03:01:54
3	Mirel Cosulschi	0.00 s	C	2025-04-23 13:48:00
4	Prospero Phelix	0.00 s	C	2025-06-01 11:40:10
5	Sebastian Miles	0.01 s	C	2022-09-25 12:14:37

#	User	Runtime	Language	Date
1	Ricardo H Guerrero Lara	0.02 s	C#	2022-10-23 07:43:56
2	traxex	0.04 s	C#	2024-05-25 22:09:35

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.06 s	F#	2022-10-20 18:43:56

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2022-10-05 13:02:53
2	Ola Dahl	0.02 s	Go	2022-10-25 18:53:06

#	User	Runtime	Language	Date
1	Brent Yorgey	0.01 s	Haskell	2022-09-25 20:19:21
2	Jan Hrček	0.01 s	Haskell	2024-12-27 07:36:11
3	Ng Tek In	0.04 s	Haskell	2023-05-30 19:09:57
4	Steinar Simonnes	0.04 s	Haskell	2024-02-20 10:35:51

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.07 s	Java	2023-03-27 22:10:45
2	Crystal Sharpe	0.08 s	Java	2023-01-17 23:30:17
3	Asif Sadek	0.09 s	Java	2024-10-20 04:28:05
4	Raymond Arrington	0.10 s	Java	2024-06-27 22:39:32
5	Hussin Suleiman	0.11 s	Java	2024-06-03 16:16:39
6	Mark Sturtevant	0.11 s	Java	2024-11-03 21:02:31
7	Ben Cobb	0.12 s	Java	2024-02-11 22:50:48
8	Kevin Yang	0.13 s	Java	2022-10-17 21:29:50
9	Ranjith M	0.13 s	Java	2024-07-26 05:45:45
10	Mohammad Naufal Hazim Bin Saharudin	0.13 s	Java	2025-06-03 12:11:15

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2022-09-30 10:21:26
2	Christian Pilegaard Cederquist	0.04 s	JavaScript (SpiderMonkey)	2023-01-30 14:48:02
3	Jimmy Gustafsson	0.05 s	JavaScript (SpiderMonkey)	2025-07-19 23:51:34

#	User	Runtime	Language	Date
1	Timothy Gaede	0.55 s	Julia	2024-06-20 07:38:50

#	User	Runtime	Language	Date
1	Troy Warmboe	0.28 s	Kotlin	2023-04-18 20:21:30
2	Aksel Holbek Sørbye	0.31 s	Kotlin	2022-09-25 11:18:45
3	Adam Rankin	0.36 s	Kotlin	2023-08-25 03:17:59

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.01 s	Pascal	2023-03-18 09:33:26

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.04 s	Python 2	2023-07-30 14:23:03
2	Sivasankaran D	0.09 s	Python 2	2026-01-09 10:18:07

#	User	Runtime	Language	Date
1	Petr	0.04 s	Python 3	2024-11-23 18:05:48
2	Tan Yi Long	0.04 s	Python 3	2025-04-26 19:31:38
3	Erik Amirell Eklöf	0.05 s	Python 3	2022-09-25 11:37:00
4	Max Carnesten	0.05 s	Python 3	2022-09-25 14:47:59
5	Andreas Björklund	0.05 s	Python 3	2022-09-25 20:22:08
6	Oskar Haarklou Veileborg	0.05 s	Python 3	2022-09-26 09:52:20
7	Ram Basnet	0.05 s	Python 3	2022-10-03 07:21:54
8	Lucas Dunn	0.05 s	Python 3	2022-10-05 22:25:11
9	Karl Raud	0.05 s	Python 3	2022-10-07 13:22:02
10	Vu Minh Hieu	0.05 s	Python 3	2022-10-12 09:26:24

#	User	Runtime	Language	Date
1	Gustav Elmqvist	0.09 s	Ruby	2023-03-28 21:14:14
2	Thomas Feld	0.14 s	Ruby	2022-12-08 09:36:51
3	Miorel Palii	0.16 s	Ruby	2023-06-13 08:33:53

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-10-16 11:31:37
2	Ola Dahl	0.00 s	Rust	2022-10-22 19:01:23
3	Vincent Lagerros	0.00 s	Rust	2025-09-03 14:50:27

#	User	Length	Language	Date
1	Chenzhang Hu	27	Bash	2025-09-12 20:48:53
2	Thomas Feld	29	Bash	2023-09-26 10:52:52
3	Danny Robinson	43	Bash	2023-09-06 20:42:09

#	User	Length	Language	Date
1	Sebastian Miles	156	C	2022-09-25 12:21:49
2	April Clark	316	C	2023-07-20 03:01:54
3	Leslie Yip	318	C	2022-10-21 06:23:17
4	Mirel Cosulschi	339	C	2025-04-23 13:48:00
5	Prospero Phelix	468	C	2025-06-15 07:12:01

#	User	Length	Language	Date
1	traxex	184	C#	2024-05-25 22:09:35
2	Ricardo H Guerrero Lara	557	C#	2022-10-23 07:43:56

#	User	Length	Language	Date
1	Frans Meulenbroeks	157	C++	2024-11-13 14:48:48
2	Viktor Bello Thomsen	225	C++	2022-10-05 13:28:40
3	Grae Yeandle	247	C++	2022-10-20 18:50:31
4	Teikn Smith	264	C++	2022-10-26 17:07:37
5	Yeung Man Tsung	265	C++	2022-11-17 11:25:42
6	林育霆	269	C++	2024-03-03 09:07:00
7	丁凱惶	271	C++	2024-03-06 07:56:06
8	好吃雞蛋	293	C++	2024-03-06 17:12:53
9	Radian Krisno	296	C++	2022-12-06 11:15:07
10	Hidden user	296	C++	2023-09-17 17:22:22

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	526	F#	2022-10-20 18:43:56

#	User	Length	Language	Date
1	Ola Dahl	544	Go	2022-10-22 18:39:29
2	Norbert Voelker	804	Go	2022-10-05 13:02:53

#	User	Length	Language	Date
1	Brent Yorgey	97	Haskell	2022-09-25 20:28:24
2	Jan Hrček	145	Haskell	2024-12-27 07:36:11
3	Steinar Simonnes	292	Haskell	2024-02-20 10:35:51
4	Ng Tek In	654	Haskell	2023-05-30 19:09:57

#	User	Length	Language	Date
1	Crystal Sharpe	326	Java	2023-01-17 23:30:17
2	Mack Wong Yoong Yee	438	Java	2024-01-25 14:30:07
3	Jonatan Nilsson	483	Java	2022-09-25 11:20:29
4	Rasmus Streubel Nielsen	508	Java	2023-10-05 08:50:40
5	Stela Palii	529	Java	2024-12-30 00:31:39
6	Raymond Arrington	539	Java	2024-06-27 22:39:32
7	John Vincent Chua	542	Java	2023-06-10 13:23:04
8	Dylan Lewis	559	Java	2022-10-05 22:08:41
9	Doug Goodman	595	Java	2022-10-03 18:34:04
10	Jonathan Qi	622	Java	2023-09-06 17:27:15

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	71	JavaScript (SpiderMonkey)	2023-01-30 14:48:02
2	Jimmy Gustafsson	84	JavaScript (SpiderMonkey)	2025-07-19 23:51:34
3	Bjørn Chr. Soltvedt	188	JavaScript (SpiderMonkey)	2022-09-30 10:32:18

#	User	Length	Language	Date
1	Timothy Gaede	752	Julia	2024-06-20 07:38:50

#	User	Length	Language	Date
1	Troy Warmboe	407	Kotlin	2023-04-18 20:21:30
2	Adam Rankin	408	Kotlin	2023-08-25 03:17:59
3	Aksel Holbek Sørbye	1065	Kotlin	2022-09-25 11:18:45

#	User	Length	Language	Date
1	Ingemar Ragnemalm	524	Pascal	2023-03-18 09:33:26

#	User	Length	Language	Date
1	Yanmarshus Bachtiar	184	Python 2	2023-07-30 14:23:03
2	Sivasankaran D	298	Python 2	2026-01-09 10:18:07

#	User	Length	Language	Date
1	Lex Janssens	42	Python 3	2022-10-01 22:59:17
2	Gustav Elmqvist	42	Python 3	2023-03-28 21:19:31
3	Clement Oh	44	Python 3	2023-05-13 12:40:48
4	Jesper Bech Christensen	46	Python 3	2022-10-13 16:22:52
5	Evan Rose	46	Python 3	2023-05-20 08:14:53
6	Guk Yi Siong	46	Python 3	2023-07-26 07:58:57
7	Simon Baeckelant	46	Python 3	2025-12-01 09:36:49
8	Michael Goldwasser	47	Python 3	2022-11-10 19:00:13
9	Magnus Eide-Fredriksen	47	Python 3	2023-06-28 19:09:57
10	Gustav Kalander	48	Python 3	2022-09-25 11:11:37

#	User	Length	Language	Date
1	Thomas Feld	29	Ruby	2023-01-12 10:41:07
2	Gustav Elmqvist	53	Ruby	2023-03-28 21:14:14
3	Miorel Palii	55	Ruby	2023-06-13 08:33:53

#	User	Length	Language	Date
1	Vincent Lagerros	255	Rust	2025-09-03 14:47:19
2	Bas Dirks	310	Rust	2022-10-16 11:31:37
3	Ola Dahl	803	Rust	2022-10-22 19:01:23

Solution running time distribution