Problem I
Infinite 2D Array — Problem Statistics

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Submissions	699
Accepted submissions	190
Submission ratio	27.18%
Authors	197
Full solves [?]	145
Full solve Ratio	73.60%

#	User	Runtime	Language	Date
1	Huỳnh Trần Khanh	0.04 s	C++	2022-09-12 09:55:35
2	PTIT - HN.Gamecock	0.05 s	C++	2020-11-15 03:28:05
3	Andreas Martin	0.05 s	C++	2020-11-15 07:44:18
4	Fernando Fonseca	0.05 s	C++	2020-11-15 08:42:34
5	Hoàng Minh Nguyễn	0.05 s	C++	2021-12-03 03:16:26
6	Nick Wu	0.05 s	C++	2023-06-23 10:44:45
7	Abdullah Al Shaad	0.05 s	C++	2025-05-10 18:56:45
8	CSP K53withBugs	0.06 s	C++	2020-11-15 02:55:05
9	HCMUS-CentralReborn	0.06 s	C++	2020-11-15 02:59:28
10	Clarence Chew	0.06 s	C++	2020-11-15 03:59:04

#	User	Runtime	Language	Date
1	Soumik Sarkar	0.18 s	Haskell	2022-10-01 07:42:49
2	Udo Stenzel	0.24 s	Haskell	2023-01-17 13:00:16
3	TJ Takei	0.25 s	Haskell	2025-08-01 09:38:13
4	Brent Yorgey	0.62 s	Haskell	2023-01-16 15:16:06

#	User	Runtime	Language	Date
1	Tamonash Chakraborty	0.28 s	Java	2021-06-09 15:57:58
2	Jianan Pang	0.92 s	Java	2021-03-17 05:34:15

#	User	Runtime	Language	Date
1	Andreas Björklund	0.68 s	Python 2	2021-03-20 14:53:49

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	0.22 s	Python 3	2021-01-14 08:52:32
2	Paco Criado	0.23 s	Python 3	2025-02-23 21:02:52
3	Duoduo Zhao	0.25 s	Python 3	2025-08-19 09:47:23
4	Hidden user	0.74 s	Python 3	2023-08-15 21:20:22
5	Petr	0.80 s	Python 3	2022-06-04 16:51:04

#	User	Runtime	Language	Date
1	R C	0.27 s	Rust	2022-10-09 06:16:53

#	User	Length	Language	Date
1	Andreas Alberg	825	C++	2021-10-20 18:07:20
2	Dmitry Lyubshin	864	C++	2023-04-21 21:24:36
3	Teetat Thamronglak	883	C++	2024-08-05 11:57:38
4	Mạnh Quyền Võ	964	C++	2021-10-11 18:41:12
5	Fernando Nathaniel Sutanto	977	C++	2021-01-21 10:20:42
6	Văn Hiệp	979	C++	2023-03-18 04:53:39
7	Phan Đình Khôi	988	C++	2021-06-03 13:21:50
8	Phan Hữu An	1014	C++	2022-02-11 11:56:02
9	Huỳnh Trần Khanh	1041	C++	2022-09-12 09:55:35
10	Nyamdavaa Amar	1048	C++	2021-11-26 14:44:00

#	User	Length	Language	Date
1	Soumik Sarkar	1370	Haskell	2022-10-01 07:51:26
2	Udo Stenzel	2933	Haskell	2023-01-17 11:03:57
3	TJ Takei	3182	Haskell	2025-08-03 09:17:50
4	Brent Yorgey	6556	Haskell	2021-01-01 23:51:48

#	User	Length	Language	Date
1	Tamonash Chakraborty	1241	Java	2021-06-09 15:57:58
2	Jianan Pang	2300	Java	2021-03-17 05:34:15

#	User	Length	Language	Date
1	Andreas Björklund	710	Python 2	2021-03-20 14:53:49

#	User	Length	Language	Date
1	Hidden user	456	Python 3	2023-08-15 21:16:11
2	Oskar Haarklou Veileborg	617	Python 3	2021-01-14 08:52:32
3	Paco Criado	1385	Python 3	2025-02-23 21:02:52
4	Duoduo Zhao	2109	Python 3	2025-08-19 09:47:23
5	Petr	2399	Python 3	2024-09-09 22:32:29

#	User	Length	Language	Date
1	R C	6215	Rust	2022-10-09 06:16:53

Solution running time distribution