Problem A
Classrooms — Problem Statistics

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Submissions	13631
Accepted submissions	2168
Submission ratio	15.90%
Authors	1693
Accepted authors	1133
Author ratio	66.92%

#	User	Runtime	Language	Date
1	Christian Pletbjerg	0.13 s	C	2023-08-05 07:47:27

#	User	Runtime	Language	Date
1	Tobias Bjerge Bang	0.42 s	C#	2020-09-05 11:13:48
2	Elias	0.58 s	C#	2022-04-05 05:15:39
3	Agatha	0.71 s	C#	2024-12-09 16:38:09
4	Adam James Negaard	0.88 s	C#	2022-09-11 10:17:28
5	Lukas L. Hjelmstrand	0.89 s	C#	2024-09-09 19:36:15

#	User	Runtime	Language	Date
1	Troels Bjerre Lund	0.05 s	C++	2020-09-10 12:07:17
2	Leif Eriksson	0.07 s	C++	2022-02-17 16:18:48
3	กฤษฏิ์ พรไพรินทร์	0.08 s	C++	2017-07-08 19:49:26
4	Abdul Malik Nurrokhman	0.08 s	C++	2018-06-09 10:41:09
5	Agis Daniels	0.08 s	C++	2020-05-09 22:34:31
6	Theodore Wang	0.08 s	C++	2021-08-17 18:36:24
7	Frank Endriss	0.08 s	C++	2021-11-23 18:13:24
8	Roger Chen	0.08 s	C++	2022-05-19 04:34:42
9	YanHao Ling	0.08 s	C++	2024-10-08 10:36:35
10	Hidden user	0.09 s	C++	2018-08-12 06:27:52

#	User	Runtime	Language	Date
1	Hidden user	0.77 s	Common Lisp	2019-07-10 09:29:40

#	User	Runtime	Language	Date
1	Christian Pletbjerg	0.76 s	Haskell	2022-10-19 06:01:05
2	Hidden user	0.77 s	Haskell	2022-10-19 05:42:28
3	Mckinley Xie	0.97 s	Haskell	2025-02-21 04:38:36

#	User	Runtime	Language	Date
1	Troels Bjerre Lund	0.31 s	Java	2020-09-04 23:50:23
2	Way Tan	0.63 s	Java	2019-05-08 18:52:16
3	Josenildo Silva	0.65 s	Java	2017-07-08 04:44:58
4	Ray Bai	0.66 s	Java	2022-09-20 23:44:14
5	Abegail Lacsena	0.67 s	Java	2023-08-03 04:34:33
6	Zihan Wang	0.68 s	Java	2023-03-31 09:09:09
7	Grace Tuomala	0.68 s	Java	2024-02-17 23:38:31
8	The Brainiest Ashes Ever	0.68 s	Java	2024-02-23 19:16:38
9	Jake	0.68 s	Java	2024-02-25 04:12:10
10	Alex Reyes	0.68 s	Java	2024-02-25 05:20:54

#	User	Runtime	Language	Date
1	Christian Cederquist	0.57 s	JavaScript (SpiderMonkey)	2023-10-12 09:43:29

#	User	Runtime	Language	Date
1	Andreas Wassum	0.96 s	Kotlin	2019-08-31 09:17:31
2	Min-Zheng Shieh	1.53 s	Kotlin	2021-04-23 13:51:05
3	Danny Mittal	2.06 s	Kotlin	2022-09-21 01:26:00

#	User	Runtime	Language	Date
1	Nikolaj Munk Binder Jensen	0.62 s	Python 3	2024-09-06 11:31:36
2	Oskar Haarklou Veileborg	0.69 s	Python 3	2020-09-21 13:23:23
3	Troels Bjerre Lund	0.73 s	Python 3	2020-09-04 22:23:52
4	Jonathan Cederlund	0.87 s	Python 3	2023-08-24 16:25:36
5	Thore Husfeldt	0.88 s	Python 3	2020-09-10 13:40:15
6	Yi-Min Seah	0.91 s	Python 3	2022-02-20 14:05:25
7	Annabell Blaumann	0.94 s	Python 3	2022-11-20 16:37:57
8	John Zheng	1.00 s	Python 3	2022-11-04 03:09:24
9	Isaac Lee	1.06 s	Python 3	2025-02-13 04:59:47
10	Jakob Israelsen	1.16 s	Python 3	2021-09-05 16:10:13

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.06 s	Rust	2024-09-30 16:53:38
2	Hidden user	0.08 s	Rust	2022-12-07 16:12:54
3	Daniel Anker Hermansen	0.09 s	Rust	2023-08-25 18:36:51
4	Egor Kulikov	0.10 s	Rust	2024-11-01 10:24:08
5	Gangnam Style	0.10 s	Rust	2024-11-28 14:36:56
6	Liam Thorell	0.10 s	Rust	2024-11-28 19:29:40
7	Jakub Jagiello	0.11 s	Rust	2020-12-06 19:01:36
8	Klas af Geijerstam	0.11 s	Rust	2022-11-22 12:35:06
9	Muhammad Rais Fathin Mudzakir	0.12 s	Rust	2021-05-11 21:48:24
10	Niklas Sandén	0.12 s	Rust	2023-03-22 19:33:58

#	User	Length	Language	Date
1	Christian Pletbjerg	42711	C	2023-08-05 07:47:27

#	User	Length	Language	Date
1	Lukas L. Hjelmstrand	782	C#	2024-09-09 19:36:15
2	Agatha	2101	C#	2024-12-10 12:17:52
3	Adam James Negaard	2583	C#	2022-09-11 10:14:02
4	Elias	3106	C#	2022-04-05 05:15:39
5	Tobias Bjerge Bang	22710	C#	2020-09-05 11:38:58

#	User	Length	Language	Date
1	Daniel Rasmussen	369	C++	2023-05-19 09:28:03
2	Rumbin Lee	420	C++	2023-05-19 16:34:19
3	ณัฐวุฒิ เจนศักดิ์ดา	487	C++	2024-01-16 12:51:52
4	Hidden user	487	C++	2024-05-21 07:30:42
5	陳楷元	488	C++	2024-05-08 14:57:54
6	Elias	489	C++	2023-05-18 16:34:34
7	Beichen Sun	506	C++	2025-02-09 14:51:52
8	Quanmeng Wang	506	C++	2016-10-12 04:06:46
9	Frederick Pek	518	C++	2021-08-07 15:42:21
10	Hyunjun Lee	522	C++	2022-12-11 03:45:02

#	User	Length	Language	Date
1	Hidden user	7551	Common Lisp	2019-07-10 04:24:45

#	User	Length	Language	Date
1	Mckinley Xie	449	Haskell	2025-02-21 04:49:42
2	Christian Pletbjerg	2679	Haskell	2022-10-19 06:01:05
3	Hidden user	2706	Haskell	2022-10-19 05:42:28

#	User	Length	Language	Date
1	Atharva Nagarkar	1265	Java	2019-03-31 06:29:31
2	Sathwika Deegutla	1325	Java	2024-02-22 01:33:36
3	Gabriel Perez	1365	Java	2024-02-29 04:07:51
4	Troels Bjerre Lund	1385	Java	2020-09-05 18:54:33
5	Alsion Tafa	1422	Java	2024-02-28 04:09:08
6	John Massung	1423	Java	2024-02-28 22:35:39
7	Eric Leow Yu Quan	1426	Java	2021-12-16 06:29:18
8	Collin Jakubik	1451	Java	2021-11-09 20:13:16
9	Reda Elalami	1496	Java	2024-02-29 00:38:39
10	Daniel Ramos	1506	Java	2024-02-28 18:02:37

#	User	Length	Language	Date
1	Christian Cederquist	5804	JavaScript (SpiderMonkey)	2023-10-12 09:43:29

#	User	Length	Language	Date
1	Danny Mittal	816	Kotlin	2022-09-21 01:26:00
2	Min-Zheng Shieh	1182	Kotlin	2021-04-23 13:51:05
3	Andreas Wassum	4005	Kotlin	2019-08-31 09:17:31

#	User	Length	Language	Date
1	Nikolaj Munk Binder Jensen	176	Python 3	2025-02-16 10:12:29
2	Dante Bencivenga	259	Python 3	2022-10-08 01:07:39
3	Leonardo Canello	350	Python 3	2022-10-26 15:25:34
4	Felix Fatum	380	Python 3	2024-09-04 18:31:31
5	Anthony Nguyen	459	Python 3	2023-04-01 19:15:39
6	Hidden user	473	Python 3	2025-02-17 23:50:48
7	Ha Truong	478	Python 3	2024-05-27 06:13:04
8	Yasir Yilmazcoban	506	Python 3	2025-02-22 20:51:45
9	Hidden user	512	Python 3	2025-02-21 06:48:37
10	Zihan Wang	543	Python 3	2023-04-01 19:32:17

#	User	Length	Language	Date
1	Liam Thorell	1501	Rust	2024-11-28 19:29:40
2	Hidden user	1588	Rust	2022-12-07 16:12:54
3	Carl Forsinge	2089	Rust	2024-10-27 20:50:13
4	Gangnam Style	3444	Rust	2024-11-28 14:36:56
5	Muhammad Rais Fathin Mudzakir	4396	Rust	2021-05-11 01:52:40
6	Klas af Geijerstam	13240	Rust	2022-11-22 12:35:06
7	Jakub Jagiello	14694	Rust	2020-12-06 19:01:36
8	Vincent Lagerros	16610	Rust	2024-09-30 16:53:38
9	Egor Kulikov	17864	Rust	2024-11-01 10:24:08
10	Niklas Sandén	26703	Rust	2023-03-22 19:33:58

Solution running time distribution