Problem C
Odd Echo — Problem Statistics

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Submissions	1682
Accepted submissions	635
Submission ratio	37.75%
Authors	638
Full solves [?]	588
Full solve Ratio	92.16%

#	User	Score	Language	Date
1	Hidden user	2	Bash	2026-01-25 15:34:37

#	User	Score	Language	Date
1	Gabriel Stanculescu	2	C	2022-01-27 18:34:55
2	Marcus Henrik Simonsen	2	C	2022-02-11 22:14:30
3	Jonas-Mika Senghaas	2	C	2022-09-27 11:55:31

#	User	Score	Language	Date
1	Joachim Borup	2	C++	2021-11-02 14:59:49
2	David Vinje	2	C++	2022-01-20 15:53:58
3	Mariusz Oskar Kurek	2	C++	2022-01-21 22:21:38
4	Jonas-Mika Senghaas	2	C++	2022-01-30 16:22:43
5	Christoffer Jakob Romild Woldbye	2	C++	2023-01-16 13:48:06
6	Nikolaj Munk Binder Jensen	2	C++	2023-01-16 16:44:21
7	Aniela Ciecierska	2	C++	2024-01-30 17:22:55
8	Andreas Andrä-Fredsted	2	C++	2024-02-04 18:04:36
9	Badr Mansouri	2	C++	2026-01-29 08:31:33

#	User	Score	Language	Date
1	Adam Yaser Sweilem	2	Haskell	2025-02-04 20:55:22

#	User	Score	Language	Date
1	Hiroki Kanai	2	Java with Algs4	2025-01-27 18:49:59
2	Maria Møller	2	Java with Algs4	2026-01-25 15:24:46

#	User	Score	Language	Date
1	Jonas Ulsnes Jørgensen	2	Rust	2022-01-26 16:00:07
2	Hidden user	2	Rust	2025-01-22 22:19:24

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Bash	2026-01-25 15:34:37

#	User	Runtime	Language	Date
1	Gabriel Stanculescu	0.00 s	C	2022-01-27 18:34:55
2	Marcus Henrik Simonsen	0.00 s	C	2022-02-11 22:14:30
3	Jonas-Mika Senghaas	0.00 s	C	2022-09-27 11:55:31

#	User	Runtime	Language	Date
1	Joachim Borup	0.00 s	C++	2021-11-02 14:59:49
2	David Vinje	0.00 s	C++	2022-01-20 15:53:58
3	Mariusz Oskar Kurek	0.00 s	C++	2022-01-21 22:21:38
4	Jonas-Mika Senghaas	0.00 s	C++	2022-01-30 16:22:43
5	Christoffer Jakob Romild Woldbye	0.00 s	C++	2023-01-16 13:48:06
6	Nikolaj Munk Binder Jensen	0.00 s	C++	2023-01-16 16:44:21
7	Aniela Ciecierska	0.00 s	C++	2024-01-30 17:22:55
8	Andreas Andrä-Fredsted	0.00 s	C++	2024-02-04 18:04:36
9	Badr Mansouri	0.00 s	C++	2026-01-29 08:31:33

#	User	Runtime	Language	Date
1	Adam Yaser Sweilem	0.00 s	Haskell	2025-02-04 20:55:22

#	User	Runtime	Language	Date
1	Darius Lukasukas	0.04 s	Java	2025-01-25 13:46:11
2	Hidden user	0.04 s	Java	2025-03-23 11:22:28
3	Simon Grynnerup Skouboe	0.04 s	Java	2026-01-29 11:44:12
4	Asmus Tørsleff	0.06 s	Java	2022-01-16 23:12:14
5	Frederik Petersen	0.06 s	Java	2022-01-30 15:02:01
6	Frederik Bertelsen	0.06 s	Java	2023-01-28 22:13:49
7	Hjalte Erlang Treebak	0.08 s	Java	2025-01-22 13:20:45
8	Max Sørensen	0.08 s	Java	2025-01-22 14:45:49
9	Afro DiJack	0.08 s	Java	2025-01-22 23:02:46
10	Hidden user	0.08 s	Java	2025-01-23 01:50:25

#	User	Runtime	Language	Date
1	Hiroki Kanai	0.09 s	Java with Algs4	2025-01-27 18:49:59
2	Maria Møller	0.09 s	Java with Algs4	2026-01-25 15:24:46

#	User	Runtime	Language	Date
1	Lasse Schnell Danielsen	0.04 s	Python 3	2022-06-30 18:00:02
2	Hidden user	0.04 s	Python 3	2022-07-08 13:06:05
3	Hidden user	0.04 s	Python 3	2022-07-10 21:35:09
4	Hidden user	0.04 s	Python 3	2022-07-11 23:53:47
5	Hidden user	0.04 s	Python 3	2023-01-27 14:27:26
6	Frederik Lind	0.04 s	Python 3	2023-02-02 00:15:25
7	Hidden user	0.04 s	Python 3	2023-03-10 12:51:39
8	William Leerbeck Meyer	0.04 s	Python 3	2025-01-22 19:32:09
9	Hidden user	0.04 s	Python 3	2025-01-22 20:50:39
10	Vincenzo Emanuele Piras	0.04 s	Python 3	2025-01-23 09:23:00

#	User	Runtime	Language	Date
1	Adam O'Neill von Benzon	0.04 s	Python 3 with NumPy	2025-01-23 20:59:55
2	Maria	0.04 s	Python 3 with NumPy	2025-01-24 17:19:31
3	Hidden user	0.04 s	Python 3 with NumPy	2025-01-25 17:28:52
4	Maribel Yazmin Preite	0.04 s	Python 3 with NumPy	2025-01-26 01:42:27
5	Nikolaj Pahus Pedersen	0.04 s	Python 3 with NumPy	2025-01-26 15:43:28
6	Mirka	0.04 s	Python 3 with NumPy	2025-01-26 17:29:24
7	Erik Aymerich	0.04 s	Python 3 with NumPy	2025-01-27 14:28:22
8	Hidden user	0.04 s	Python 3 with NumPy	2025-01-27 16:32:55
9	Rudra Kaushik	0.04 s	Python 3 with NumPy	2025-01-27 16:32:55
10	Hidden user	0.04 s	Python 3 with NumPy	2025-01-27 16:57:07

#	User	Runtime	Language	Date
1	Jonas Ulsnes Jørgensen	0.00 s	Rust	2022-01-26 16:00:07
2	Hidden user	0.00 s	Rust	2025-01-22 22:19:24

#	User	Length	Language	Date
1	Hidden user	127	Bash	2026-01-25 15:34:37

#	User	Length	Language	Date
1	Jonas-Mika Senghaas	209	C	2022-09-27 11:55:31
2	Gabriel Stanculescu	231	C	2022-01-27 18:34:55
3	Marcus Henrik Simonsen	385	C	2022-02-11 22:14:30

#	User	Length	Language	Date
1	Jonas-Mika Senghaas	206	C++	2022-01-30 16:22:43
2	Mariusz Oskar Kurek	243	C++	2022-01-21 22:21:38
3	David Vinje	252	C++	2022-01-20 15:53:58
4	Joachim Borup	269	C++	2021-11-02 14:59:49
5	Badr Mansouri	274	C++	2026-01-29 08:31:33
6	Aniela Ciecierska	318	C++	2024-01-30 17:22:55
7	Nikolaj Munk Binder Jensen	335	C++	2023-01-16 16:44:21
8	Christoffer Jakob Romild Woldbye	337	C++	2023-01-16 13:48:06
9	Andreas Andrä-Fredsted	531	C++	2024-02-04 18:04:36

#	User	Length	Language	Date
1	Adam Yaser Sweilem	156	Haskell	2025-02-04 20:55:22

#	User	Length	Language	Date
1	Frederik Bertelsen	188	Java	2023-01-28 21:54:18
2	Oliver Flinck Sheye	224	Java	2025-01-26 16:30:25
3	Malte Alexander Koefoed Schalck	284	Java	2022-01-30 15:03:03
4	Jonas Fuhr Høyer	287	Java	2022-01-30 16:28:15
5	Sebastian Bjørner	290	Java	2023-01-30 23:35:41
6	Yu Sun	302	Java	2023-01-22 16:19:57
7	Silke Sofie Holme Bonnén	305	Java	2022-01-28 14:37:50
8	Magnus Rolin	313	Java	2026-01-26 14:16:47
9	Erik Malmqvist Jakobsen	321	Java	2022-01-29 19:04:09
10	Jens Sebastian Groenen Sanderhoff	322	Java	2026-02-05 14:14:44

#	User	Length	Language	Date
1	Hiroki Kanai	331	Java with Algs4	2025-01-27 18:49:59
2	Maria Møller	349	Java with Algs4	2026-01-25 15:24:46

#	User	Length	Language	Date
1	Christian alexander Hetling	72	Python 3	2022-01-20 19:23:41
2	Marin-Mădălin Giurgică	85	Python 3	2024-02-02 13:57:38
3	Wiktor	86	Python 3	2024-01-29 17:53:35
4	Flóra Földesi	87	Python 3	2025-01-29 13:07:16
5	Hidden user	89	Python 3	2022-01-27 18:21:51
6	Magnus Wulff Breinstrup	89	Python 3	2026-01-25 20:29:23
7	Hidden user	90	Python 3	2022-01-30 22:39:17
8	Apostolos Draganis	90	Python 3	2025-01-23 19:48:05
9	Hidden user	90	Python 3	2025-01-23 19:57:24
10	Katerina Rique Anastasia Østergaard	91	Python 3	2023-01-31 16:33:09

#	User	Length	Language	Date
1	Hidden user	91	Python 3 with NumPy	2025-01-27 16:57:07
2	Hidden user	93	Python 3 with NumPy	2025-01-27 16:32:55
3	Mikkel Luc Carlsen	95	Python 3 with NumPy	2023-07-06 14:01:52
4	Rudra Kaushik	97	Python 3 with NumPy	2025-01-27 16:32:55
5	Hidden user	99	Python 3 with NumPy	2023-01-25 17:49:22
6	Andrei Sheremet	99	Python 3 with NumPy	2025-01-31 19:48:29
7	Morten Bast Hall	105	Python 3 with NumPy	2023-01-25 20:52:42
8	Nikolaj Pahus Pedersen	111	Python 3 with NumPy	2025-01-26 15:43:28
9	Kasper Dyrby	113	Python 3 with NumPy	2026-01-27 12:57:27
10	Adam O'Neill von Benzon	114	Python 3 with NumPy	2025-01-23 20:59:55

#	User	Length	Language	Date
1	Jonas Ulsnes Jørgensen	365	Rust	2022-01-26 16:00:07
2	Hidden user	464	Rust	2025-01-22 22:19:24

Solution running time distribution