Problem A
I Can Guess the Data Structure! — Problem Statistics

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Submissions	942
Accepted submissions	237
Submission ratio	25.16%
Authors	206
Accepted authors	170
Author ratio	82.52%

#	User	Runtime	Language	Date
1	Nicolaj Valsted	0.01 s	C++	2020-03-12 10:32:37
2	Christian Werner	0.01 s	C++	2021-03-12 14:03:46
3	David Vinje	0.01 s	C++	2022-02-26 08:56:37
4	Zainab Afrushe	0.01 s	C++	2024-03-14 13:09:22
5	Gabriel Stanculescu	0.04 s	C++	2022-01-27 18:21:14
6	Hidden user	0.04 s	C++	2022-03-13 18:14:35

#	User	Runtime	Language	Date
1	Asmus Tørsleff	0.08 s	Java	2021-03-23 00:15:27
2	Joachim Borup	0.14 s	Java	2021-04-14 01:38:50
3	Christoffer Jakob Romild Woldbye	0.16 s	Java	2021-04-18 15:54:20
4	Hidden user	0.21 s	Java	2021-03-29 03:35:21
5	Marfavi	0.22 s	Java	2021-07-27 18:54:13
6	Martin A	0.23 s	Java	2021-03-18 20:00:01
7	Thomas Wolgast Rørbech	0.23 s	Java	2021-06-23 22:55:51
8	Frederik Bertelsen	0.26 s	Java	2023-05-05 17:07:40
9	Mathias Hvolgaard Darling Larsen	0.28 s	Java	2022-03-10 17:11:59
10	Sadun Bulut	0.29 s	Java	2020-03-15 16:29:35

#	User	Runtime	Language	Date
1	Kim Ulstrup	0.79 s	Java with Algs4	2025-03-07 01:30:42

#	User	Runtime	Language	Date
1	Radost Boyadzhieva	0.14 s	Python 3	2025-03-17 00:11:43
2	Christian Margo Hansen	0.15 s	Python 3	2021-03-11 16:44:45
3	Hidden user	0.15 s	Python 3	2023-03-25 13:14:38
4	Niels Vedersoe	0.15 s	Python 3	2024-04-08 22:34:45
5	Hidden user	0.16 s	Python 3	2021-05-09 14:37:20
6	Frederik Peter Høngaard	0.18 s	Python 3	2020-02-28 22:56:19
7	Mads Kelberg	0.18 s	Python 3	2021-05-06 21:45:22
8	Thomas Charton-Jaeg	0.18 s	Python 3	2022-05-08 15:03:12
9	Luke O'Neill	0.18 s	Python 3	2024-03-19 11:24:18
10	Patricia Nita	0.18 s	Python 3	2025-03-10 14:07:13

#	User	Runtime	Language	Date
1	Hidden user	0.16 s	Python 3 with NumPy	2025-04-13 16:19:38
2	Anders Lind	0.21 s	Python 3 with NumPy	2023-04-04 16:14:03
3	Rudra Kaushik	0.21 s	Python 3 with NumPy	2025-03-17 03:12:18
4	Maks Suppras Kjeldsen	0.24 s	Python 3 with NumPy	2024-04-24 16:51:17
5	Daniil Strelan	0.34 s	Python 3 with NumPy	2023-03-27 12:28:55

#	User	Length	Language	Date
1	Zainab Afrushe	1324	C++	2024-03-14 13:10:05
2	Christian Werner	1393	C++	2021-03-12 14:03:46
3	Gabriel Stanculescu	1757	C++	2022-01-27 18:21:14
4	Hidden user	1757	C++	2022-03-13 18:14:35
5	Nicolaj Valsted	1811	C++	2020-02-28 13:33:06
6	David Vinje	1963	C++	2022-02-26 08:56:37

#	User	Length	Language	Date
1	Hidden user	1690	Java	2022-04-07 20:50:58
2	Hidden user	1699	Java	2021-03-28 13:03:49
3	Omar Lukman Semou	1702	Java	2023-04-11 14:05:04
4	Hidden user	1733	Java	2022-03-13 19:04:30
5	Hidden user	1739	Java	2021-03-24 15:04:43
6	Danyal Yorulmaz	1754	Java	2021-04-30 18:24:25
7	Noah Fabricius	1779	Java	2024-05-07 20:10:13
8	Bruno Martinovic	1784	Java	2021-05-03 05:16:08
9	Jakob Henriksen	1840	Java	2021-05-03 02:40:56
10	Erna Galijasevic	1845	Java	2021-03-15 05:25:55

#	User	Length	Language	Date
1	Kim Ulstrup	1753	Java with Algs4	2025-03-07 01:30:42

#	User	Length	Language	Date
1	Thore Husfeldt	951	Python 3	2021-03-14 22:24:09
2	Jan vivo	983	Python 3	2024-04-26 17:53:43
3	Jonathan Severin Sudergaard Schmidt	1064	Python 3	2021-03-14 19:04:32
4	Gustav Kristensen	1110	Python 3	2022-02-27 21:54:23
5	Abel Szemler	1141	Python 3	2023-05-03 20:10:46
6	Hidden user	1150	Python 3	2023-05-08 11:19:15
7	Mark	1193	Python 3	2023-05-03 20:33:09
8	Nikolaj Munk Binder Jensen	1237	Python 3	2023-03-23 18:47:35
9	Michaela Rajcanova	1237	Python 3	2023-05-02 16:00:36
10	Hidden user	1239	Python 3	2023-04-02 23:25:49

#	User	Length	Language	Date
1	Daniil Strelan	1231	Python 3 with NumPy	2023-03-27 12:28:55
2	Anders Lind	1382	Python 3 with NumPy	2023-04-04 16:14:03
3	Maks Suppras Kjeldsen	1569	Python 3 with NumPy	2024-04-24 16:51:17
4	Hidden user	1612	Python 3 with NumPy	2025-04-13 16:19:38
5	Rudra Kaushik	2270	Python 3 with NumPy	2025-03-17 03:12:18

Solution running time distribution