Problem A
Dobra — Problem Statistics

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Submissions	5332
Accepted submissions	1342
Submission ratio	25.17%
Authors	1046
Accepted authors	854
Author ratio	81.64%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.08 s	Bash	2024-04-17 19:24:48

#	User	Runtime	Language	Date
1	Sambit Palit	0.00 s	C	2020-11-05 02:25:47
2	Hidden user	0.01 s	C	2025-02-12 08:43:41
3	Ivan Petrov	0.04 s	C	2019-05-07 10:15:58
4	Samuel Deutsch	0.11 s	C	2020-09-02 16:46:16

#	User	Runtime	Language	Date
1	Jasmin Baniya	0.06 s	C#	2020-04-06 03:12:15

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Go	2024-06-29 23:23:41
2	Albert Leung	0.03 s	Go	2024-08-25 18:54:46
3	Hidden user	0.05 s	Go	2024-10-07 01:06:53
4	Aleksander Jan Mistewicz	0.07 s	Go	2019-04-12 15:22:43
5	Norbert Voelker	0.13 s	Go	2021-11-18 23:41:02

#	User	Runtime	Language	Date
1	Hidden user	0.07 s	Haskell	2023-05-20 20:55:37
2	Brent Yorgey	0.25 s	Haskell	2020-01-01 14:02:21

#	User	Runtime	Language	Date
1	Ralf Erik	0.04 s	Java	2025-06-12 21:15:55
2	Steven Cheng	0.06 s	Java	2020-06-10 09:15:22
3	Nick Wu	0.06 s	Java	2022-03-14 22:32:10
4	Jeegn Dani	0.07 s	Java	2020-09-10 05:46:49
5	James Tang	0.07 s	Java	2020-09-11 00:38:33
6	Ezreal	0.07 s	Java	2022-04-04 16:23:46
7	Dina Kazzoun	0.07 s	Java	2024-02-08 17:38:13
8	Doug Goodman	0.09 s	Java	2020-05-21 18:36:37
9	Hidden user	0.09 s	Java	2024-02-09 16:30:05
10	Ahinya Alwin	0.09 s	Java	2024-02-14 18:30:48

#	User	Runtime	Language	Date
1	tannal	0.36 s	JavaScript (Node.js)	2024-03-02 06:56:37

#	User	Runtime	Language	Date
1	Christian Cederquist	0.38 s	JavaScript (SpiderMonkey)	2023-11-16 21:59:58

#	User	Runtime	Language	Date
1	Noszály Csaba	0.60 s	Julia	2025-03-26 06:56:41

#	User	Runtime	Language	Date
1	Allen Guan	0.13 s	Kotlin	2022-04-08 08:33:01
2	Josie Bierbaum	0.61 s	Kotlin	2021-09-27 22:51:35

#	User	Runtime	Language	Date
1	Josenildo Silva	0.08 s	Pascal	2021-06-12 14:49:13

#	User	Runtime	Language	Date
1	Lars Åström	0.03 s	Python 2	2019-04-16 15:45:34
2	Andreas Björklund	0.10 s	Python 2	2022-03-13 14:21:09
3	Jeongbin Lee	0.32 s	Python 2	2024-01-25 07:30:19
4	Carina Nilsson	0.47 s	Python 2	2019-09-10 22:32:02

#	User	Runtime	Language	Date
1	Tomas Möre	0.03 s	Python 3	2019-04-12 15:57:53
2	Marcus Östling	0.03 s	Python 3	2019-04-12 19:56:05
3	Dries Harnie	0.03 s	Python 3	2019-04-15 08:41:31
4	Daniel Wadell	0.04 s	Python 3	2019-11-17 23:45:03
5	Diego Alonso Morales Arellano	0.04 s	Python 3	2024-10-11 05:49:59
6	Ishrat Naba	0.04 s	Python 3	2025-03-20 00:18:45
7	Nhự Nương Họ Vũ	0.04 s	Python 3	2025-03-20 19:20:12
8	Nam Nguyen Vu	0.04 s	Python 3	2025-03-21 04:25:06
9	Louis Kunstmann	0.04 s	Python 3	2025-03-24 00:58:28
10	楊博宇	0.04 s	Python 3	2025-04-18 05:26:35

#	User	Runtime	Language	Date
1	Miorel Palii	0.07 s	Ruby	2022-04-04 08:20:48

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Rust	2019-04-12 15:07:25
2	Pahlevi Fikri Auliya	0.00 s	Rust	2021-03-13 09:42:02
3	Vincent Lagerros	0.00 s	Rust	2025-06-08 18:27:14
4	Chris Seager	0.04 s	Rust	2025-02-09 05:18:56

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-04-17 19:24:48

#	User	Length	Language	Date
1	Ivan Petrov	1165	C	2019-05-07 10:15:58
2	Samuel Deutsch	1408	C	2020-09-02 16:46:16
3	Hidden user	1491	C	2025-02-12 08:43:41
4	Sambit Palit	1965	C	2020-11-05 02:25:47

#	User	Length	Language	Date
1	Jasmin Baniya	4831	C#	2020-04-06 03:12:15

#	User	Length	Language	Date
1	Lee Bing Heng	638	C++	2022-12-25 14:09:59
2	Jakov	682	C++	2024-10-14 11:37:58
3	Alexandre Jesus	715	C++	2024-02-28 20:52:50
4	Arianna Yang	761	C++	2024-07-14 22:07:58
5	Mauricio Miranda	766	C++	2024-05-03 22:37:47
6	Anderson Soares	787	C++	2024-05-02 23:37:46
7	Gustavo Brito	787	C++	2024-05-03 23:52:53
8	Wladimir Tavares	791	C++	2024-04-11 14:53:49
9	Danniel Alcantara	792	C++	2023-04-25 01:21:27
10	Yuzhe Liu	793	C++	2022-02-02 03:32:03

#	User	Length	Language	Date
1	Hidden user	998	Go	2024-06-29 23:23:41
2	Norbert Voelker	1614	Go	2021-11-18 23:38:26
3	Aleksander Jan Mistewicz	1647	Go	2019-04-12 15:22:43
4	Albert Leung	1858	Go	2024-08-25 18:54:46
5	Hidden user	12260	Go	2024-10-07 01:06:53

#	User	Length	Language	Date
1	Brent Yorgey	644	Haskell	2020-01-01 14:02:21
2	Hidden user	1105	Haskell	2023-05-20 20:55:37

#	User	Length	Language	Date
1	Ninghui Li	969	Java	2020-06-09 00:14:46
2	Marc Dominic San Pedro	1122	Java	2024-08-15 11:44:08
3	Alaa Aljundi	1464	Java	2024-02-15 03:48:21
4	Crystal Sharpe	1596	Java	2020-06-05 17:17:38
5	David Robinson	1605	Java	2024-01-19 20:45:53
6	Georgina Wu	1607	Java	2024-02-15 04:06:18
7	Jake	1664	Java	2024-02-15 01:28:46
8	Aaron Navarro	1718	Java	2024-02-15 03:03:34
9	Andrew Polizzotto	1733	Java	2020-03-26 18:28:01
10	Adrita Samanta	1737	Java	2021-05-29 02:25:43

#	User	Length	Language	Date
1	tannal	2097	JavaScript (Node.js)	2024-03-02 06:56:37

#	User	Length	Language	Date
1	Christian Cederquist	783	JavaScript (SpiderMonkey)	2023-11-16 21:59:58

#	User	Length	Language	Date
1	Noszály Csaba	295	Julia	2025-03-26 06:56:41

#	User	Length	Language	Date
1	Allen Guan	1779	Kotlin	2022-04-08 08:33:01
2	Josie Bierbaum	3354	Kotlin	2021-09-27 22:51:35

#	User	Length	Language	Date
1	Josenildo Silva	1255	Pascal	2021-06-12 14:49:13

#	User	Length	Language	Date
1	Lars Åström	869	Python 2	2019-04-16 15:45:34
2	Andreas Björklund	922	Python 2	2022-03-13 14:21:09
3	Carina Nilsson	1197	Python 2	2019-09-10 22:32:02
4	Jeongbin Lee	1798	Python 2	2024-01-25 07:30:19

#	User	Length	Language	Date
1	Marcus Xu	401	Python 3	2023-02-05 17:49:35
2	Nicholas Russell Saerang	500	Python 3	2024-06-05 16:21:56
3	成俊宏	548	Python 3	2023-04-21 04:04:52
4	Samuel McDowell	567	Python 3	2023-11-22 23:24:30
5	Kyle Wells	570	Python 3	2023-11-22 21:20:19
6	Oskar Haarklou Veileborg	615	Python 3	2020-04-29 11:36:23
7	Jared Dawson	641	Python 3	2021-09-27 19:34:36
8	Iker Lissarrague	715	Python 3	2022-04-07 20:47:22
9	Hidden user	722	Python 3	2022-12-02 22:03:58
10	Maria Silva Gutierrez (Alumno)	722	Python 3	2025-06-13 02:38:25

#	User	Length	Language	Date
1	Miorel Palii	685	Ruby	2022-04-04 08:20:48

#	User	Length	Language	Date
1	Chris Seager	1704	Rust	2025-02-09 05:18:56
2	Vincent Lagerros	2459	Rust	2025-06-08 18:27:14
3	Pahlevi Fikri Auliya	2683	Rust	2021-03-13 09:42:02
4	Hidden user	9652	Rust	2019-04-12 15:07:25

Solution running time distribution