Problem A
OvalWatch — Problem Statistics

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Submissions	965
Accepted submissions	509
Submission ratio	52.75%
Authors	458
Accepted authors	414
Author ratio	90.39%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.02 s	C	2019-03-11 15:03:47
2	Ivan Petrov	0.30 s	C	2020-03-26 15:10:30

#	User	Runtime	Language	Date
1	Jakub Jarząbek	0.11 s	C#	2022-01-25 23:50:07
2	Martin Liu	0.12 s	C#	2023-10-14 18:45:47
3	Nathan Andrews	0.19 s	C#	2024-09-17 21:01:17

#	User	Runtime	Language	Date
1	Noah Weninger	0.01 s	C++	2019-03-12 17:50:18
2	Hidden user	0.01 s	C++	2019-04-21 08:03:05
3	Eugene Y. Q. Shen	0.02 s	C++	2019-03-09 21:21:07
4	Victor Chen	0.02 s	C++	2019-03-09 22:32:16
5	Roddy MacCrimmon	0.02 s	C++	2019-03-09 23:24:56
6	Fan Zhang	0.02 s	C++	2019-03-09 23:40:32
7	Josip Smolcic	0.02 s	C++	2019-03-10 00:44:51
8	Donald Dong	0.02 s	C++	2019-03-10 02:55:52
9	Theo Ebenhoech	0.02 s	C++	2019-03-10 09:05:07
10	Atli Fannar Franklín	0.02 s	C++	2019-03-11 12:33:05

#	User	Runtime	Language	Date
1	Norbert Voelker	0.11 s	Go	2021-11-08 18:35:04

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.30 s	Haskell	2025-01-30 15:34:35

#	User	Runtime	Language	Date
1	Bjørn Dons	0.19 s	Java	2019-10-18 23:27:05
2	Samuel Klingström	0.20 s	Java	2020-05-22 23:23:46
3	Crystal Sharpe	0.20 s	Java	2020-10-18 04:16:29
4	Esther Chong	0.35 s	Java	2023-05-17 08:20:15
5	Aarush Patil	0.39 s	Java	2024-09-23 17:22:59
6	Benjamin Reidys	0.40 s	Java	2019-03-10 03:44:58
7	Terrence Park	0.42 s	Java	2019-03-21 07:20:19
8	Andrew Polizzotto	0.42 s	Java	2020-03-11 03:20:07
9	Alex Huang	0.42 s	Java	2020-05-02 21:05:37
10	Dante Bencivenga	0.42 s	Java	2021-08-21 22:09:33

#	User	Runtime	Language	Date
1	Christian Cederquist	0.20 s	JavaScript (SpiderMonkey)	2023-07-17 16:34:59
2	Bjørn Chr. Soltvedt	0.57 s	JavaScript (SpiderMonkey)	2024-02-18 00:38:41

#	User	Runtime	Language	Date
1	Tim Barry	0.19 s	Python 2	2019-03-09 21:41:30
2	Andreas Björklund	0.19 s	Python 2	2019-06-30 09:24:21
3	Lars Åström	0.19 s	Python 2	2019-10-15 12:13:19
4	Bob doom	0.27 s	Python 2	2019-03-11 19:50:26
5	Oskar Haarklou Veileborg	0.28 s	Python 2	2019-03-22 13:32:29
6	Maj Stenmark	0.28 s	Python 2	2019-05-01 22:05:40

#	User	Runtime	Language	Date
1	Hidden user	0.15 s	Python 3	2025-02-07 23:55:55
2	Eduardo Alvarez Hernandez	0.15 s	Python 3	2025-02-11 00:13:31
3	Josiah Lane	0.15 s	Python 3	2025-03-31 19:42:30
4	Maarten Sebregts	0.17 s	Python 3	2019-08-26 20:56:40
5	Hidden user	0.17 s	Python 3	2025-02-10 02:23:43
6	crapcode	0.18 s	Python 3	2022-09-30 13:40:40
7	Hidden user	0.18 s	Python 3	2025-02-14 19:04:40
8	Chris Jones	0.19 s	Python 3	2019-07-09 10:00:59
9	Yi-Min Seah	0.19 s	Python 3	2022-02-02 03:57:14
10	Mahir Khan	0.19 s	Python 3	2022-02-14 17:14:13

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2024-09-19 15:44:08
2	Mckinley Xie	0.03 s	Rust	2025-02-07 22:49:32

#	User	Length	Language	Date
1	Ivan Petrov	1894	C	2020-03-26 15:10:30
2	Bergur Snorrason	1923	C	2019-03-11 15:03:47

#	User	Length	Language	Date
1	Nathan Andrews	1086	C#	2024-09-17 21:01:17
2	Martin Liu	1291	C#	2023-10-14 18:45:47
3	Jakub Jarząbek	6333	C#	2022-01-25 23:50:07

#	User	Length	Language	Date
1	Way Tan	432	C++	2020-10-05 19:33:23
2	Grae Yeandle	433	C++	2021-03-21 15:17:33
3	Presley Graham	438	C++	2021-03-06 17:57:38
4	James Rettie	452	C++	2022-09-25 23:58:30
5	Ragur Krishnan	468	C++	2019-03-09 22:54:20
6	Hidden user	470	C++	2021-09-30 05:50:48
7	Johan Wind	482	C++	2019-03-31 15:25:26
8	David Zheng	493	C++	2019-03-15 23:54:23
9	Hidden user	512	C++	2021-02-26 22:19:33
10	Atli Fannar Franklín	520	C++	2019-03-11 12:32:19

#	User	Length	Language	Date
1	Norbert Voelker	1137	Go	2021-11-08 18:35:04

#	User	Length	Language	Date
1	Steinar Simonnes	1340	Haskell	2025-01-30 15:34:35

#	User	Length	Language	Date
1	Derrick Martin	857	Java	2019-09-14 19:41:09
2	Markus Bao	867	Java	2024-06-17 23:57:09
3	Darrin Wiley	940	Java	2019-09-14 19:51:46
4	Suhas T. Nagar	985	Java	2021-11-15 03:14:19
5	Dylan Smith	1003	Java	2020-05-02 21:09:02
6	Cole Adams	1015	Java	2019-03-09 22:19:45
7	Doug Goodman	1031	Java	2019-07-13 15:29:12
8	Kevin Dai	1032	Java	2024-02-10 09:44:33
9	Tejus Gangadharaiah	1198	Java	2019-03-09 23:08:06
10	Anon	1219	Java	2024-02-13 11:12:45

#	User	Length	Language	Date
1	Christian Cederquist	1014	JavaScript (SpiderMonkey)	2023-07-17 16:34:59
2	Bjørn Chr. Soltvedt	1073	JavaScript (SpiderMonkey)	2024-02-20 13:00:22

#	User	Length	Language	Date
1	Lars Åström	231	Python 2	2019-10-15 12:13:19
2	Andreas Björklund	281	Python 2	2019-06-30 09:24:21
3	Oskar Haarklou Veileborg	358	Python 2	2019-03-22 13:32:29
4	Maj Stenmark	411	Python 2	2019-05-01 22:05:40
5	Bob doom	459	Python 2	2019-03-11 19:50:26
6	Tim Barry	791	Python 2	2019-03-09 21:41:30

#	User	Length	Language	Date
1	Guk Yi Siong	137	Python 3	2023-12-22 17:20:21
2	Tai Tze Kin	213	Python 3	2024-05-05 09:48:14
3	Victor Zheng	213	Python 3	2019-03-09 22:06:18
4	Anh Nguyen	218	Python 3	2023-02-19 03:07:05
5	Shashank Bhatt	219	Python 3	2023-04-09 23:38:59
6	Christian Blumenthal	230	Python 3	2025-02-22 15:00:08
7	crapcode	233	Python 3	2022-09-30 17:09:33
8	Thomas Draper	239	Python 3	2022-10-06 19:20:49
9	Kelly Dance	242	Python 3	2023-04-09 21:35:55
10	Paco Criado	247	Python 3	2024-03-12 00:07:34

#	User	Length	Language	Date
1	Mckinley Xie	1441	Rust	2025-02-07 22:49:32
2	Vincent Lagerros	16274	Rust	2024-09-19 15:44:08

Solution running time distribution