Problem B
Echo Echo Echo — Problem Statistics

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Submissions	3615
Accepted submissions	1872
Submission ratio	51.78%
Authors	1399
Full solves [?]	1377
Full solve Ratio	98.43%

#	User	Runtime	Language	Date
1	Lucas Heede Vulpius	0.01 s	APL	2024-09-03 16:53:27

#	User	Runtime	Language	Date
1	Philip Mørch	0.02 s	C#	2021-09-03 22:28:38
2	Bekir Saliv	0.02 s	C#	2021-09-09 10:12:39
3	Alyson De Souza	0.02 s	C#	2021-09-13 22:30:26
4	Nicklas Jeppesen	0.04 s	C#	2023-08-29 12:45:10
5	Villum Sonne	0.04 s	C#	2023-08-29 21:50:19
6	Daniel Spandet Grønbjerg	0.04 s	C#	2023-08-30 08:52:27
7	Hidden user	0.04 s	C#	2023-08-30 11:46:43
8	Tore Asbjørn Tonnisen Kjelds	0.04 s	C#	2023-08-30 14:49:46
9	Ezequiel Padillo Molina	0.04 s	C#	2024-08-26 16:34:56
10	Michael Jeppesen	0.04 s	C#	2024-08-28 08:14:20

#	User	Runtime	Language	Date
1	Anders Mikkelsen	0.01 s	Common Lisp	2023-08-30 11:52:22

#	User	Runtime	Language	Date
1	Jesper Bengtson	0.04 s	F#	2021-09-08 23:55:43
2	Magnus Degn Christensen	0.04 s	F#	2022-03-14 20:23:37

#	User	Runtime	Language	Date
1	Adam Yaser Sweilem	0.00 s	Haskell	2025-02-04 20:43:43
2	Alessandro Bruni	0.01 s	Haskell	2021-08-31 12:15:32
3	Frederik Haagensen	0.01 s	Haskell	2021-09-01 09:11:32
4	Gustav Kristensen	0.01 s	Haskell	2022-02-27 17:49:18

#	User	Runtime	Language	Date
1	Caroline Ruolan Xu Bjørner	0.04 s	Java	2025-01-27 16:53:06
2	Raehan Sarjou	0.04 s	Java	2025-01-27 16:54:46
3	Lærke Jul Rosenkjær	0.04 s	Java	2025-01-27 17:11:20
4	Asmus Tørsleff	0.06 s	Java	2021-09-08 15:17:56
5	Joachim Borup	0.06 s	Java	2021-09-09 08:21:18
6	Mathias Hvolgaard Darling Larsen	0.06 s	Java	2021-10-02 01:22:48
7	Thomas Wolgast Rørbech	0.06 s	Java	2023-08-30 12:04:34
8	Adrian Borup	0.06 s	Java	2023-08-30 14:38:27
9	Hidden user	0.07 s	Java	2025-01-27 16:54:16
10	Jacob Grum	0.08 s	Java	2024-08-24 12:20:33

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	JavaScript (Node.js)	2024-08-28 10:24:40

#	User	Runtime	Language	Date
1	Hiroki Kanai	0.11 s	Java with Algs4	2025-01-27 18:28:47

#	User	Runtime	Language	Date
1	Lasse Schnell Danielsen	0.04 s	Python 3	2022-06-30 17:42:21
2	Hidden user	0.04 s	Python 3	2022-07-08 13:00:20
3	Hidden user	0.04 s	Python 3	2022-07-10 20:57:12
4	Hidden user	0.04 s	Python 3	2022-07-11 19:54:24
5	Hidden user	0.04 s	Python 3	2022-07-11 23:15:31
6	Niklas Christensen	0.04 s	Python 3	2022-09-09 18:12:28
7	Phi Va Lo	0.04 s	Python 3	2022-09-30 19:34:25
8	Hidden user	0.04 s	Python 3	2023-01-26 09:14:54
9	Bozhidara Stoyanova Pesheva	0.04 s	Python 3	2023-01-26 13:43:51
10	Rasmus Vanglo Otkjær	0.04 s	Python 3	2023-01-26 15:18:54

#	User	Runtime	Language	Date
1	Gabriela Zhelyazkova	0.04 s	Python 3 with NumPy	2023-01-16 23:47:32
2	Hidden user	0.04 s	Python 3 with NumPy	2023-01-23 19:10:13
3	Hidden user	0.04 s	Python 3 with NumPy	2023-01-25 16:49:23
4	Amna	0.04 s	Python 3 with NumPy	2023-08-30 14:52:54
5	Giulia Pinciroli	0.04 s	Python 3 with NumPy	2024-08-28 10:28:38
6	Andreas Benggaard	0.04 s	Python 3 with NumPy	2024-08-28 14:27:27
7	Rasmus Herskind	0.04 s	Python 3 with NumPy	2024-08-28 20:40:34
8	Adam O'Neill von Benzon	0.04 s	Python 3 with NumPy	2025-01-23 17:49:52
9	Maria	0.04 s	Python 3 with NumPy	2025-01-24 16:19:02
10	Osvald Gotthardt Møller	0.04 s	Python 3 with NumPy	2025-01-24 18:01:13

#	User	Runtime	Language	Date
1	Andreas Severin Hauch Trøstrup	0.06 s	Ruby	2024-08-28 10:07:56
2	Frederik Petersen	0.07 s	Ruby	2024-08-28 10:07:22

#	User	Runtime	Language	Date
1	Hidden user	0.84 s	Scala	2023-09-03 14:00:59
2	Nicolai Grymer	0.90 s	Scala	2023-08-30 10:53:32

#	User	Length	Language	Date
1	Lucas Heede Vulpius	23	APL	2024-09-03 23:23:41

#	User	Length	Language	Date
1	Marcus Alsted Wegmann	121	C	2025-08-27 11:44:24
2	Niels Chemnitz	127	C	2021-09-15 13:06:27
3	Gabriel Stanculescu	135	C	2024-08-27 14:21:53
4	Joachim Borup	137	C	2023-08-30 14:20:14
5	Jonas-Mika Senghaas	158	C	2022-09-27 11:44:35
6	Marcus Henrik Simonsen	159	C	2022-02-11 21:48:39
7	Kasper Berthelsen	160	C	2021-09-15 13:39:25
8	Lasse Overgaard	163	C	2024-08-26 08:46:06
9	Lukas Wing	173	C	2021-09-23 08:46:50
10	Mariusz Oskar Kurek	203	C	2021-09-13 12:57:07

#	User	Length	Language	Date
1	Lukas L. Hjelmstrand	94	C#	2024-08-28 11:08:33
2	Nicklas Lundsteen Jensen	99	C#	2025-08-27 12:21:12
3	Fabio Mangiameli	100	C#	2025-09-01 17:20:11
4	Nicklas Koch Rasmussen	102	C#	2024-08-28 10:49:55
5	Hidden user	138	C#	2024-08-28 10:21:15
6	Villum Sonne	170	C#	2023-08-29 21:50:19
7	Hidden user	176	C#	2023-08-30 11:46:43
8	Daniel Spandet Grønbjerg	193	C#	2023-10-01 12:34:41
9	Viktor Horváth	203	C#	2025-08-27 12:34:13
10	William Skou Heidemann	211	C#	2025-08-27 12:31:29

#	User	Length	Language	Date
1	Jaime Cruz Ferreira	123	C++	2023-08-30 14:30:52
2	Aniela Ciecierska	128	C++	2024-01-30 13:41:30
3	Nikolaj Munk Binder Jensen	136	C++	2023-01-16 16:19:50
4	Hidden user	137	C++	2023-08-30 14:33:01
5	Christoffer Jakob Romild Woldbye	139	C++	2023-01-16 13:42:01
6	Jobayer Hossain	143	C++	2025-08-27 12:42:17
7	Oliver Juhl Friis Hansen	153	C++	2025-08-23 15:57:00
8	Anders Reedtz Sparrevohn	158	C++	2021-09-20 19:47:12
9	Hidden user	166	C++	2022-01-31 01:56:18
10	Emil	167	C++	2025-08-27 12:39:58

#	User	Length	Language	Date
1	Anders Mikkelsen	55	Common Lisp	2023-08-30 11:52:22

#	User	Length	Language	Date
1	Magnus Degn Christensen	131	F#	2022-03-14 20:23:37
2	Jesper Bengtson	1738	F#	2021-09-08 23:55:43

#	User	Length	Language	Date
1	Marco Carbone	110	Go	2021-09-08 12:12:49
2	Mumi Mumrik	116	Go	2021-09-12 23:47:35
3	Asmus Tørsleff	122	Go	2021-09-08 15:14:30
4	Joachim Borup	122	Go	2023-08-30 14:19:59
5	Leonora	124	Go	2021-08-31 11:21:14
6	Max Brix Koch	124	Go	2025-08-27 12:16:09
7	Rasmus Garbarsch	126	Go	2021-09-19 01:22:58
8	Freja Vanggaard	129	Go	2021-08-31 10:51:12
9	Sofia Kjær	132	Go	2021-09-08 14:32:57
10	Oskar Breindahl	137	Go	2023-08-30 11:36:57

#	User	Length	Language	Date
1	Alessandro Bruni	81	Haskell	2021-08-31 12:15:32
2	Adam Yaser Sweilem	84	Haskell	2025-02-04 20:43:43
3	Frederik Haagensen	142	Haskell	2021-09-01 09:11:32
4	Gustav Kristensen	165	Haskell	2022-02-27 17:49:18

#	User	Length	Language	Date
1	Phi Va Lo	116	Java	2022-09-30 19:32:11
2	Oliver Flinck Sheye	143	Java	2025-01-26 16:32:20
3	Frederik Bertelsen	144	Java	2023-01-28 21:27:51
4	Monica Hardt	204	Java	2021-09-02 15:21:26
5	Maria Siara	204	Java	2024-01-29 12:34:34
6	Olivia Brophy	206	Java	2023-09-16 22:09:30
7	elisa	207	Java	2024-09-03 17:32:14
8	Halfdan Eld	208	Java	2025-08-28 12:27:35
9	Alex Tilgreen Mogensen	210	Java	2024-02-08 13:29:08
10	Mikkel Kjærulf	211	Java	2022-01-29 17:41:13

#	User	Length	Language	Date
1	Hidden user	254	JavaScript (Node.js)	2024-08-28 10:24:40

#	User	Length	Language	Date
1	Hiroki Kanai	224	Java with Algs4	2025-01-27 18:28:47

#	User	Length	Language	Date
1	Markus Kristoffer Sibbesen	19	Python 3	2023-08-30 14:25:57
2	Christian alexander Hetling	19	Python 3	2024-08-29 11:03:09
3	Erling Amundsen	20	Python 3	2024-08-29 11:04:23
4	Phi Va Lo	22	Python 3	2022-09-30 19:34:25
5	Alexis Serruys	22	Python 3	2023-01-28 15:04:54
6	Hidden user	22	Python 3	2023-01-29 14:48:57
7	Victor Popp	22	Python 3	2023-08-30 14:20:12
8	Marcus Sebastian Emil Holmgaard	22	Python 3	2023-09-01 09:43:59
9	Lasse Overgaard	22	Python 3	2024-08-26 08:48:38
10	Jonas Ulsnes Jørgensen	22	Python 3	2024-08-28 08:10:58

#	User	Length	Language	Date
1	Oleg Jarma Montoya	27	Python 3 with NumPy	2023-08-30 15:47:41
2	Hidden user	34	Python 3 with NumPy	2023-01-22 17:02:43
3	Tibor Szolomaier	34	Python 3 with NumPy	2025-08-27 12:33:48
4	Hidden user	34	Python 3 with NumPy	2025-08-27 12:42:40
5	Anders Lind	37	Python 3 with NumPy	2023-02-04 19:58:47
6	Ahmad Sattar Atta	40	Python 3 with NumPy	2023-08-29 21:15:02
7	Hidden user	41	Python 3 with NumPy	2023-01-31 11:54:27
8	Hidden user	42	Python 3 with NumPy	2023-01-29 20:33:14
9	Ida Wennergaard	42	Python 3 with NumPy	2023-02-06 14:15:21
10	Costel Gutu	44	Python 3 with NumPy	2023-01-31 11:52:12

#	User	Length	Language	Date
1	Andreas Severin Hauch Trøstrup	10	Ruby	2024-08-28 10:07:56
2	Frederik Petersen	10	Ruby	2024-08-28 10:07:59

#	User	Length	Language	Date
1	Albert Ross Johannessen	135	Rust	2022-10-30 23:54:40
2	Jonas Ulsnes Jørgensen	171	Rust	2021-09-04 20:22:37
3	Michael Daniel Fabiriucs	183	Rust	2024-08-30 20:34:09
4	Andrzej Wasowski	193	Rust	2021-09-14 09:08:54
5	Fergus Jones	194	Rust	2024-03-20 07:23:38
6	Kasper Jønsson	196	Rust	2024-01-28 21:41:36
7	Emil Dichmann	205	Rust	2023-08-30 14:50:30
8	Hidden user	206	Rust	2025-01-22 21:38:39
9	Gustav Kristensen	208	Rust	2022-05-07 22:53:50
10	Hidden user	283	Rust	2021-09-13 20:51:51

#	User	Length	Language	Date
1	Hidden user	157	Scala	2023-09-03 14:00:59
2	Nicolai Grymer	201	Scala	2023-08-30 10:53:32

Solution running time distribution