Problem A
A Pivotal Question — Problem Statistics

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Submissions	2970
Accepted submissions	630
Submission ratio	21.21%
Authors	618
Accepted authors	476
Author ratio	77.02%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.36 s	Bash	2024-04-16 16:56:18

#	User	Runtime	Language	Date
1	Oscar Brink	0.02 s	C	2024-02-07 07:40:00
2	Hidden user	0.10 s	C	2024-02-20 09:03:13
3	Ryan Maschino	0.11 s	C	2023-11-04 03:22:10
4	Hidden user	0.11 s	C	2024-03-09 00:24:12
5	Thomas Evans	0.11 s	C	2024-05-08 08:53:50
6	MUTHURAJAN G	0.11 s	C	2025-04-09 16:05:23
7	Alexander Bilde Pedersen	0.16 s	C	2024-02-07 18:58:47

#	User	Runtime	Language	Date
1	Diego Rico Reyes	0.27 s	C#	2023-11-27 03:11:18
2	Fun Union	0.27 s	C#	2025-06-21 01:26:15
3	Georgina Yujra H	0.27 s	C#	2025-06-21 01:26:57
4	Matias Córdova	0.27 s	C#	2025-06-26 15:47:27
5	Sasha Steffey	0.29 s	C#	2024-10-21 01:51:48
6	Ekaterina Tcareva	0.29 s	C#	2025-05-08 14:19:17
7	Rik Van den Berghen	0.34 s	C#	2025-03-31 21:25:02

#	User	Runtime	Language	Date
1	Alexander Kravberg	0.02 s	C++	2023-11-02 00:09:00
2	Jonathan Hallström	0.03 s	C++	2024-10-23 11:12:20
3	Hidden user	0.03 s	C++	2024-10-26 10:35:25
4	Filip Hovorka	0.07 s	C++	2024-07-09 18:40:11
5	Cuong Dang	0.08 s	C++	2024-11-03 17:47:51
6	Damian Ho	0.09 s	C++	2023-10-29 16:07:46
7	Russell Emerine	0.09 s	C++	2023-10-29 16:07:53
8	Egor Lifar	0.09 s	C++	2023-10-29 16:09:31
9	Yijun Chen	0.09 s	C++	2023-10-29 16:12:43
10	Lam Pham	0.09 s	C++	2023-10-29 16:14:18

#	User	Runtime	Language	Date
1	Jesper Bengtson	1.31 s	F#	2023-12-08 18:31:08

#	User	Runtime	Language	Date
1	la123	0.19 s	Fortran	2025-03-26 06:23:39

#	User	Runtime	Language	Date
1	Michael Hoffmann	0.12 s	Go	2023-11-18 21:39:59

#	User	Runtime	Language	Date
1	Lars Corbijn	0.73 s	Haskell	2024-11-28 14:39:48
2	Brent Yorgey	1.71 s	Haskell	2023-10-30 11:13:50

#	User	Runtime	Language	Date
1	Bjørn Dons	0.17 s	Java	2023-10-30 22:55:39
2	Gavin Dimpter	0.40 s	Java	2023-11-17 02:09:13
3	Sriniketh Vangaru	0.40 s	Java	2024-10-19 19:12:27
4	Nicholas Tng	0.41 s	Java	2023-11-07 14:43:38
5	Issa Issack	0.41 s	Java	2024-07-15 09:29:53
6	Benjamin Reidys	0.41 s	Java	2024-10-25 23:01:01
7	Ben Reed	0.43 s	Java	2024-02-03 20:50:57
8	Shreyas Jamadagni	0.44 s	Java	2024-09-01 13:49:08
9	Akshit Gupta	0.44 s	Java	2025-06-10 23:14:23
10	Ranjith M	0.45 s	Java	2024-02-17 18:32:51

#	User	Runtime	Language	Date
1	Christian Cederquist	0.34 s	JavaScript (SpiderMonkey)	2023-11-06 20:55:33
2	Bjørn Chr. Soltvedt	0.45 s	JavaScript (SpiderMonkey)	2023-10-30 10:25:23

#	User	Runtime	Language	Date
1	Finn Lidbetter	0.77 s	Kotlin	2023-11-01 02:29:38
2	Chris Johnson	1.63 s	Kotlin	2025-03-21 00:06:51

#	User	Runtime	Language	Date
1	sakthivel 7	0.90 s	Odin	2025-04-06 17:55:11

#	User	Runtime	Language	Date
1	Cole Beasant	0.23 s	Python 3	2024-09-18 03:42:42
2	Axel Lundberg	0.23 s	Python 3	2024-09-28 18:49:22
3	Matya Stavnitzky	0.25 s	Python 3	2023-11-16 15:56:53
4	Zach Campbell	0.25 s	Python 3	2024-03-18 06:10:33
5	Ole Vik Lysne	0.25 s	Python 3	2025-01-25 03:50:05
6	Ingvar Þór Jónsson	0.25 s	Python 3	2025-01-30 11:27:13
7	Dagur Máni Guðmundsson	0.25 s	Python 3	2025-06-06 00:44:42
8	Mohamed Lashuel	0.26 s	Python 3	2023-10-29 18:07:53
9	Brenden Cosman	0.26 s	Python 3	2023-10-29 20:18:36
10	Hidden user	0.26 s	Python 3	2023-11-02 08:46:08

#	User	Runtime	Language	Date
1	Yinuo Huang	0.71 s	Ruby	2024-02-05 00:10:12

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2024-10-23 20:55:16
2	Frank Endriss	0.04 s	Rust	2023-10-31 19:54:32
3	Jonas Lindgren	0.05 s	Rust	2024-09-08 15:19:29
4	Erik Magnusson	0.06 s	Rust	2024-02-21 13:43:07
5	Daniel Anker Hermansen	0.28 s	Rust	2024-03-28 00:01:46

#	User	Runtime	Language	Date
1	Hidden user	0.48 s	Swift	2023-10-30 23:24:01

#	User	Runtime	Language	Date
1	Jonathan Hallström	0.01 s	Zig	2024-10-23 12:00:03

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-04-16 16:56:18

#	User	Length	Language	Date
1	Hidden user	805	C	2024-03-09 00:24:12
2	Hidden user	895	C	2024-02-20 09:47:51
3	MUTHURAJAN G	926	C	2025-04-09 16:05:23
4	Alexander Bilde Pedersen	1207	C	2024-02-07 18:58:47
5	Thomas Evans	1354	C	2024-05-08 08:53:50
6	Ryan Maschino	1553	C	2023-11-04 03:22:10
7	Oscar Brink	1705	C	2024-02-07 07:40:00

#	User	Length	Language	Date
1	Rik Van den Berghen	720	C#	2025-03-31 21:29:57
2	Sasha Steffey	861	C#	2024-10-21 01:51:48
3	Ekaterina Tcareva	955	C#	2025-05-08 14:33:30
4	Diego Rico Reyes	1308	C#	2023-11-27 03:11:18
5	Fun Union	1391	C#	2025-06-21 01:26:15
6	Georgina Yujra H	1391	C#	2025-06-21 01:26:57
7	Matias Córdova	2869	C#	2025-06-26 15:47:27

#	User	Length	Language	Date
1	Evan Michael Bailey	488	C++	2024-01-29 06:41:26
2	Mutiraj Laksanawisit	560	C++	2023-10-29 16:16:34
3	Andrew He	585	C++	2023-10-29 16:51:39
4	Freeman Cheng	590	C++	2023-10-29 16:15:18
5	Ryan Zhu	590	C++	2023-10-29 16:43:01
6	Chris Trevisan	604	C++	2023-10-29 16:17:57
7	Grady Kenix	614	C++	2023-10-29 17:12:41
8	Hiep Trinh	617	C++	2023-10-29 16:11:38
9	Hidden user	617	C++	2023-10-29 16:36:21
10	Rahul Prabhu	622	C++	2023-10-29 16:57:24

#	User	Length	Language	Date
1	Jesper Bengtson	2377	F#	2023-12-08 18:31:08

#	User	Length	Language	Date
1	la123	398	Fortran	2025-03-26 06:23:39

#	User	Length	Language	Date
1	Michael Hoffmann	1579	Go	2023-11-18 21:39:59

#	User	Length	Language	Date
1	Lars Corbijn	680	Haskell	2024-11-28 14:39:48
2	Brent Yorgey	9003	Haskell	2023-10-30 11:13:50

#	User	Length	Language	Date
1	Xuyan Huang	805	Java	2023-10-29 17:37:03
2	Om Patel	885	Java	2023-10-29 20:19:36
3	Kevin Kuruvilla	1019	Java	2024-11-02 19:29:21
4	Bill Vu	1039	Java	2023-11-02 00:41:55
5	Lejun Liao	1040	Java	2023-11-02 00:57:42
6	Hidden user	1045	Java	2023-10-29 17:10:31
7	Sashank Singh	1084	Java	2023-10-29 16:39:42
8	Andrew Kim	1090	Java	2023-11-07 02:08:21
9	Antonio Blanca	1106	Java	2023-11-05 04:23:14
10	Stela Palii	1167	Java	2025-01-09 08:53:25

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	243	JavaScript (SpiderMonkey)	2023-10-30 10:35:10
2	Christian Cederquist	641	JavaScript (SpiderMonkey)	2023-11-06 20:55:33

#	User	Length	Language	Date
1	Chris Johnson	666	Kotlin	2025-03-21 00:06:51
2	Finn Lidbetter	2015	Kotlin	2023-11-01 02:29:38

#	User	Length	Language	Date
1	sakthivel 7	1678	Odin	2025-04-06 17:55:11

#	User	Length	Language	Date
1	Lawry Sorenson	161	Python 3	2025-06-24 00:28:38
2	Christian Blumenthal	195	Python 3	2024-09-14 02:18:21
3	Lucas Patten	202	Python 3	2024-03-25 19:35:35
4	Ahmed Chamseddine	203	Python 3	2025-06-25 14:29:12
5	Tai Tze Kin	225	Python 3	2024-01-22 16:38:04
6	Oskar Haarklou Veileborg	232	Python 3	2023-11-01 13:10:14
7	Hrant Hovhannisyan	235	Python 3	2025-06-12 08:42:09
8	Hidden user	258	Python 3	2025-05-24 05:22:40
9	Nicholas Russell Saerang	268	Python 3	2023-11-11 00:57:34
10	Ryan Farrell	269	Python 3	2025-05-24 06:04:35

#	User	Length	Language	Date
1	Yinuo Huang	297	Ruby	2024-02-05 00:10:12

#	User	Length	Language	Date
1	Frank Endriss	1708	Rust	2023-10-31 19:54:32
2	Jonas Lindgren	2135	Rust	2024-09-08 15:19:29
3	Erik Magnusson	4389	Rust	2024-02-21 13:43:07
4	Vincent Lagerros	4552	Rust	2024-07-02 22:14:31
5	Daniel Anker Hermansen	27100	Rust	2024-03-28 00:01:46

#	User	Length	Language	Date
1	Hidden user	772	Swift	2023-10-30 23:24:01

#	User	Length	Language	Date
1	Jonathan Hallström	4437	Zig	2024-10-23 12:04:06

Solution running time distribution