Problem A
Attendance — Problem Statistics

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Submissions	1541
Accepted submissions	643
Submission ratio	41.73%
Authors	629
Accepted authors	580
Author ratio	92.21%

#	User	Runtime	Language	Date
1	Sebastian Banert	0.00 s	Ada	2024-10-19 20:58:29

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-11-18 09:53:10

#	User	Runtime	Language	Date
1	Gregory Sinclair	0.04 s	C#	2023-11-14 20:41:39
2	Sano Gharzani	0.04 s	C#	2023-12-27 14:33:08
3	Esty Crow	0.04 s	C#	2024-01-20 18:46:24
4	Anthony Ye	0.04 s	C#	2024-01-21 20:26:20
5	traxex	0.04 s	C#	2024-05-26 15:51:41
6	Michael Damsgaard	0.04 s	C#	2024-12-23 15:52:11
7	Umar Rasyid	0.04 s	C#	2025-01-25 05:56:07

#	User	Runtime	Language	Date
1	Oisín Mac Fhearaí	0.00 s	Crystal	2024-08-24 20:58:49

#	User	Runtime	Language	Date
1	Amalie Baert	0.06 s	F#	2024-10-28 01:49:14

#	User	Runtime	Language	Date
1	Bjørn Dons	0.00 s	Go	2023-11-07 20:27:56
2	Norbert Voelker	0.00 s	Go	2023-11-09 12:27:14

#	User	Runtime	Language	Date
1	Brent Yorgey	0.00 s	Haskell	2023-11-04 20:57:35
2	Hidden user	0.00 s	Haskell	2023-11-05 23:39:56
3	Josip Smolcic	0.00 s	Haskell	2023-11-06 22:42:52
4	Charley Sheaffer	0.00 s	Haskell	2023-11-16 19:24:57
5	Ng Tek In	0.00 s	Haskell	2024-01-17 18:30:21
6	Steinar Simonnes	0.00 s	Haskell	2024-02-04 18:03:00
7	Rudy Matela	0.00 s	Haskell	2024-04-23 16:48:40
8	Sebastian Banert	0.00 s	Haskell	2024-09-26 16:00:47
9	Jan Hrček	0.00 s	Haskell	2024-12-16 14:42:59
10	Shinji Koshida	0.00 s	Haskell	09:36:45

#	User	Runtime	Language	Date
1	Achim Ahlers	0.04 s	Java	2024-10-06 17:39:36
2	Sriniketh Vangaru	0.04 s	Java	2024-11-02 18:05:15
3	Jerry Chen	0.04 s	Java	2024-11-09 22:21:17
4	Stela Palii	0.04 s	Java	2024-12-02 03:23:06
5	Guangyi Zhou	0.04 s	Java	2025-02-03 11:01:06
6	Ku Brian	0.05 s	Java	2024-05-11 15:42:37
7	Raymond Arrington	0.05 s	Java	2024-06-30 04:24:27
8	Ben Cobb	0.06 s	Java	2023-11-07 06:06:20
9	Sven Rönnbäck	0.06 s	Java	2023-11-09 19:58:22
10	Hidden user	0.06 s	Java	2023-11-12 03:52:32

#	User	Runtime	Language	Date
1	Jannik99	0.05 s	JavaScript (Node.js)	2023-11-21 16:01:30
2	Hidden user	0.05 s	JavaScript (Node.js)	2025-01-18 04:49:03

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2023-11-05 01:41:02
2	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-11-05 18:43:47
3	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-11-19 23:54:05
4	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-07-21 14:00:19
5	Siddharth Reddy	0.02 s	JavaScript (SpiderMonkey)	2025-01-29 17:15:50

#	User	Runtime	Language	Date
1	Timothy Gaede	0.46 s	Julia	2024-03-27 05:33:47

#	User	Runtime	Language	Date
1	Adam Rankin	0.18 s	Kotlin	2023-11-12 19:48:53
2	Martijn Muijsers	0.18 s	Kotlin	2024-05-31 20:06:31
3	Zaw Myat	0.21 s	Kotlin	2024-01-06 00:07:22

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2023-11-15 00:30:26

#	User	Runtime	Language	Date
1	Kadriye Yildiz	0.04 s	Python 3	2024-08-29 20:30:19
2	khalisa zahra	0.04 s	Python 3	2024-09-01 11:37:45
3	Trevor	0.04 s	Python 3	2024-09-03 00:57:52
4	Lumi Lysdal	0.04 s	Python 3	2024-09-04 22:05:00
5	Hidden user	0.04 s	Python 3	2024-09-08 20:36:07
6	João Manoel	0.04 s	Python 3	2024-09-09 13:24:20
7	William James Eves	0.04 s	Python 3	2024-09-11 23:51:12
8	Hidden user	0.04 s	Python 3	2024-09-14 06:14:54
9	James Bryan Francisco	0.04 s	Python 3	2024-09-14 06:33:32
10	Rafael Sheen Acuna	0.04 s	Python 3	2024-09-14 12:38:12

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-11-07 13:50:28
2	Miorel Palii	0.07 s	Ruby	2024-11-25 01:39:14

#	User	Runtime	Language	Date
1	David Rasch	0.00 s	Rust	2023-11-15 10:04:58
2	Bas Dirks	0.00 s	Rust	2023-12-25 15:49:31
3	Frank Endriss	0.00 s	Rust	2024-06-02 16:15:48
4	Daniel Anker Hermansen	0.00 s	Rust	2024-08-12 12:38:53
5	Pankajkumar Patro	0.00 s	Rust	2024-09-16 16:58:30
6	Isak Jägberg	0.00 s	Rust	2024-10-23 13:00:55
7	Vincent Lagerros	0.00 s	Rust	2024-11-22 18:23:19
8	Egor Kulikov	0.00 s	Rust	2025-01-15 13:28:58

#	User	Runtime	Language	Date
1	Krzys Hejno	0.00 s	Swift	2025-02-10 19:54:01

#	User	Length	Language	Date
1	Sebastian Banert	843	Ada	2024-10-19 20:58:29

#	User	Length	Language	Date
1	Danny Robinson	97	Bash	2023-11-18 09:53:10

#	User	Length	Language	Date
1	Philipp Hergenhahn	322	C	2024-12-31 20:37:30
2	arda atci	457	C	2024-09-29 23:32:44
3	Mikael K Eriksson	591	C	2024-02-21 08:56:18
4	Mohamed ali	633	C	2025-01-09 12:05:57
5	Madison Olson	798	C	2024-10-30 22:11:29
6	Sami Al Chalati	806	C	2024-02-19 22:54:23
7	Mstafa Tattan	894	C	2025-01-10 18:29:20
8	Truong Duy Khoa (K17_CT)	1038	C	2024-12-03 03:29:29
9	Fereshta Hasanzada	1104	C	2025-02-02 13:01:52
10	Michael Cosby	1466	C	2024-11-29 20:57:01

#	User	Length	Language	Date
1	Gregory Sinclair	274	C#	2023-11-14 20:41:39
2	traxex	364	C#	2024-05-26 15:51:41
3	Michael Damsgaard	594	C#	2024-12-23 15:52:11
4	Esty Crow	598	C#	2024-01-20 18:46:24
5	Anthony Ye	644	C#	2024-01-21 20:26:20
6	Umar Rasyid	1127	C#	2025-01-25 05:56:07
7	Sano Gharzani	1479	C#	2023-12-27 14:33:08

#	User	Length	Language	Date
1	Hidden user	309	C++	2025-01-18 20:24:30
2	Jesús Pacheco Alonso	360	C++	2024-01-24 17:11:40
3	7sixPAUL	373	C++	2023-11-12 15:17:17
4	Grae Yeandle	390	C++	2023-11-16 15:46:53
5	Rain Zimin Yang	399	C++	2024-02-10 20:48:56
6	Md. Tuser Sheikh	401	C++	2024-01-11 11:16:14
7	Andrew Lyem	411	C++	2024-03-17 19:38:39
8	Ale Demian	419	C++	2023-11-12 15:16:26
9	Mohsen Mahroos	421	C++	2024-03-08 02:23:30
10	Ritul Kumar Singh	421	C++	2024-05-09 14:40:27

#	User	Length	Language	Date
1	Oisín Mac Fhearaí	160	Crystal	2024-08-24 20:58:49

#	User	Length	Language	Date
1	Amalie Baert	351	F#	2024-10-28 01:49:14

#	User	Length	Language	Date
1	Norbert Voelker	493	Go	2023-11-09 12:27:14
2	Bjørn Dons	825	Go	2023-11-07 20:27:56

#	User	Length	Language	Date
1	Rudy Matela	104	Haskell	2024-04-23 16:53:24
2	Jan Hrček	120	Haskell	2024-12-16 14:42:59
3	Sebastian Banert	197	Haskell	2024-09-26 16:00:47
4	Charley Sheaffer	282	Haskell	2023-11-16 19:24:57
5	Josip Smolcic	329	Haskell	2023-11-06 22:42:52
6	Steinar Simonnes	341	Haskell	2024-02-04 18:03:00
7	Brent Yorgey	344	Haskell	2023-11-04 20:57:35
8	Hidden user	345	Haskell	2023-11-05 23:39:56
9	Shinji Koshida	359	Haskell	09:36:45
10	vagabundus	483	Haskell	2024-05-01 19:22:07

#	User	Length	Language	Date
1	Raymond Arrington	712	Java	2024-06-30 04:24:27
2	Mykyta Shvets	724	Java	2023-11-04 18:06:38
3	Ron Offengenden	736	Java	2025-02-21 21:12:44
4	Benjamin Stidham	747	Java	2024-08-31 02:10:01
5	Noah Zent	772	Java	2023-11-15 00:13:59
6	Martha E.	793	Java	2025-01-03 04:10:28
7	Phu Nguyen Phuoc Thien	801	Java	2023-11-26 21:23:18
8	Molly Midkiff	825	Java	2024-12-17 01:44:20
9	Emily Culver	833	Java	2023-11-04 21:50:20
10	Stela Palii	855	Java	2024-12-02 03:23:06

#	User	Length	Language	Date
1	Hidden user	769	JavaScript (Node.js)	2025-01-18 04:49:03
2	Jannik99	1007	JavaScript (Node.js)	2023-11-21 16:01:30

#	User	Length	Language	Date
1	Christian Cederquist	140	JavaScript (SpiderMonkey)	2023-11-05 18:43:47
2	Bjørn Chr. Soltvedt	166	JavaScript (SpiderMonkey)	2023-11-05 01:47:00
3	Zach Tschetter	191	JavaScript (SpiderMonkey)	2023-11-19 23:54:05
4	Jimmy Gustafsson	203	JavaScript (SpiderMonkey)	2024-07-21 14:00:19
5	Siddharth Reddy	709	JavaScript (SpiderMonkey)	2025-01-29 17:15:50

#	User	Length	Language	Date
1	Timothy Gaede	978	Julia	2024-03-27 05:33:47

#	User	Length	Language	Date
1	Adam Rankin	549	Kotlin	2023-11-12 19:48:53
2	Zaw Myat	704	Kotlin	2024-01-06 00:07:22
3	Martijn Muijsers	838	Kotlin	2024-05-31 20:06:31

#	User	Length	Language	Date
1	Renate	413	PHP	2023-11-15 00:30:26

#	User	Length	Language	Date
1	Ahmed Chamseddine	132	Python 3	2024-07-22 11:14:38
2	Thibault Raffaillac	162	Python 3	2024-07-27 22:03:39
3	Rafael Kristoforus Yanto	164	Python 3	2025-02-23 13:47:32
4	Tai Tze Kin	168	Python 3	2024-05-05 13:44:58
5	Alexandre Douard	171	Python 3	2023-12-20 21:45:13
6	Caeden Whitaker	172	Python 3	2024-01-09 23:36:20
7	Nicholas Russell Saerang	173	Python 3	2023-11-10 11:36:34
8	Sacha De Mulder	182	Python 3	2024-11-24 21:54:52
9	David Aldenbro	183	Python 3	2025-02-24 09:50:39
10	Teikn Smith	185	Python 3	2024-01-05 03:18:40

#	User	Length	Language	Date
1	Thomas Feld	61	Ruby	2023-11-07 13:50:28
2	Miorel Palii	171	Ruby	2024-11-25 01:39:14

#	User	Length	Language	Date
1	Vincent Lagerros	346	Rust	2024-11-22 18:23:52
2	David Rasch	571	Rust	2023-11-15 10:04:58
3	Pankajkumar Patro	686	Rust	2024-09-16 16:58:30
4	Bas Dirks	796	Rust	2023-12-25 15:49:31
5	Isak Jägberg	947	Rust	2024-10-23 13:00:55
6	Frank Endriss	983	Rust	2024-06-02 16:15:48
7	Egor Kulikov	20414	Rust	2025-01-15 13:28:58
8	Daniel Anker Hermansen	27495	Rust	2024-08-12 12:38:53

#	User	Length	Language	Date
1	Krzys Hejno	817	Swift	2025-02-10 19:54:01

Solution running time distribution