Problem A
Arachnophobia — Problem Statistics

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Submissions	1868
Accepted submissions	578
Submission ratio	30.94%
Authors	428
Full solves [?]	356
Full solve Ratio	83.18%

#	User	Runtime	Language	Date
1	王行悌	0.13 s	C++	2021-03-24 13:12:13
2	Domenico Salvagnin	0.14 s	C++	2018-12-16 18:50:21
3	est T	0.14 s	C++	2022-04-18 20:06:46
4	陳品劭	0.15 s	C++	2022-04-18 20:08:20
5	陳易	0.15 s	C++	2025-03-28 20:37:19
6	Kai Chen	0.17 s	C++	2018-10-27 23:59:39
7	CTFang	0.17 s	C++	2021-03-24 14:03:49
8	吳秉澍	0.18 s	C++	2022-03-25 16:42:03
9	Luna	0.18 s	C++	2022-07-19 21:02:35
10	Alessandro Dario	0.18 s	C++	2022-11-12 18:37:01

#	User	Runtime	Language	Date
1	Crystal Sharpe	0.74 s	Java	2021-04-18 07:54:54
2	Martijn Muijsers	0.81 s	Java	2020-08-11 22:53:24
3	Bjørn Dons	0.88 s	Java	2023-05-18 21:19:42
4	Daniel Moyer	1.04 s	Java	2018-10-27 23:11:37
5	Aarav Singh	1.04 s	Java	2018-10-30 02:54:06
6	Ahmad Barhamje	1.09 s	Java	2018-11-01 03:17:49
7	Ezreal	1.13 s	Java	2022-04-21 19:13:04
8	Benjamin Reidys	1.16 s	Java	2018-10-30 02:07:19
9	Kadin Tang	1.32 s	Java	2021-04-09 01:36:34
10	Aldo Chow	1.33 s	Java	2018-10-27 23:35:20

#	User	Runtime	Language	Date
1	Allen Guan	1.50 s	Kotlin	2022-03-25 14:53:40
2	Min-Zheng Shieh	1.76 s	Kotlin	2021-03-26 09:10:49
3	Zhengqing Ye	2.43 s	Kotlin	2018-10-27 22:54:54

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	1.03 s	Python 2	2018-12-05 22:39:48
2	Hidden user	1.26 s	Python 2	2018-10-28 11:10:37
3	Sivasankaran D	1.27 s	Python 2	2026-01-11 13:15:48
4	Andreas Björklund	1.37 s	Python 2	2020-04-25 09:18:08
5	Victor Zheng	1.51 s	Python 2	2018-12-04 22:59:51
6	Hidden user	1.57 s	Python 2	2019-11-22 01:44:17
7	Måns Magnusson	1.87 s	Python 2	2018-11-24 21:31:36
8	Olav Røthe Bakken	3.97 s	Python 2	2019-09-12 11:08:48

#	User	Runtime	Language	Date
1	Vincent Tandya	0.94 s	Python 3	2021-04-30 11:38:38
2	Yikuan Chou	1.05 s	Python 3	2024-12-09 02:08:59
3	Ephraim Shalunov	1.11 s	Python 3	2024-12-08 08:56:18
4	Hidden user	1.19 s	Python 3	2025-04-28 09:50:27
5	Lucas Patten	1.25 s	Python 3	2024-07-22 21:53:54
6	Javin Zipkin	1.30 s	Python 3	2024-12-06 20:57:09
7	Aden Jo	1.46 s	Python 3	2024-12-05 02:39:23
8	Dylan Chen	1.46 s	Python 3	2024-12-09 00:54:19
9	Teikn Smith	1.51 s	Python 3	2022-03-30 06:44:31
10	Nicholas Russell Saerang	1.51 s	Python 3	2024-06-18 19:57:48

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.13 s	Rust	2026-01-16 12:03:20
2	Birk Tjelmeland	0.33 s	Rust	2019-02-19 13:20:12
3	Daniel Anker Hermansen	0.61 s	Rust	2023-07-06 00:02:34

#	User	Length	Language	Date
1	Lawry Sorenson	604	C++	2024-07-22 22:49:49
2	Joakim Blikstad	1234	C++	2018-10-27 21:16:51
3	Josip Smolcic	1258	C++	2018-10-28 01:40:47
4	Johan Wind	1284	C++	2018-11-15 21:29:51
5	Simone Moretti	1356	C++	2020-12-14 15:01:05
6	Darcy Best	1383	C++	2018-10-27 20:48:02
7	Colin Hung	1393	C++	2026-03-05 20:01:21
8	Hidden user	1408	C++	2020-10-08 16:14:04
9	Kelly Lu	1441	C++	2021-03-24 12:40:00
10	Brandon Zhang	1467	C++	2021-11-20 22:46:20

#	User	Length	Language	Date
1	Mark Wen	2703	Java	2020-10-31 21:07:26
2	Crystal Sharpe	2736	Java	2021-04-18 07:54:54
3	Hidden user	2888	Java	2018-10-28 20:36:19
4	Doug Goodman	2922	Java	2019-01-04 22:04:50
5	Lucas Scharenbroch	3209	Java	2022-11-06 22:16:57
6	Bas H	3596	Java	2020-09-08 19:06:42
7	Ariana Herbst	3632	Java	2018-10-29 20:37:28
8	Darrin Wiley	3669	Java	2019-10-09 23:55:41
9	Gan Hong Yao	3669	Java	2021-05-04 08:29:25
10	lookcook	3742	Java	2020-02-17 02:55:10

#	User	Length	Language	Date
1	Zhengqing Ye	2103	Kotlin	2018-10-27 22:54:54
2	Min-Zheng Shieh	2240	Kotlin	2021-03-26 09:10:49
3	Allen Guan	2241	Kotlin	2022-03-25 14:53:40

#	User	Length	Language	Date
1	Oskar Haarklou Veileborg	905	Python 2	2018-12-05 22:34:18
2	Hidden user	1016	Python 2	2018-10-28 11:10:37
3	Andreas Björklund	1028	Python 2	2020-04-25 09:18:08
4	Olav Røthe Bakken	1034	Python 2	2019-09-11 18:52:20
5	Victor Zheng	1066	Python 2	2018-12-04 22:59:51
6	Måns Magnusson	1179	Python 2	2018-11-24 21:29:14
7	Sivasankaran D	1379	Python 2	2026-01-11 13:15:48
8	Hidden user	1648	Python 2	2019-11-22 01:44:17

#	User	Length	Language	Date
1	Shashank Bhatt	824	Python 3	2023-09-06 06:59:22
2	Kelly Dance	883	Python 3	2022-09-30 01:21:29
3	Nicholas Russell Saerang	971	Python 3	2024-06-18 19:52:00
4	Russell	1021	Python 3	2025-09-21 18:06:11
5	Victor Zheng	1048	Python 3	2018-12-04 22:57:06
6	Casper Rysgaard	1192	Python 3	2023-06-08 11:51:08
7	Vincent Tandya	1396	Python 3	2021-04-30 11:38:38
8	Yong Mao	1399	Python 3	2024-03-10 12:43:18
9	Jonathan Dastrup	1406	Python 3	2024-07-27 01:29:51
10	Mees de Vries	1706	Python 3	2019-05-09 10:49:32

#	User	Length	Language	Date
1	Birk Tjelmeland	1865	Rust	2019-02-19 13:20:12
2	Daniel Anker Hermansen	24945	Rust	2023-07-06 00:02:34
3	Vincent Lagerros	36890	Rust	2025-03-06 17:51:39

Solution running time distribution