Problem A
Call for Problems, Round 2 — Problem Statistics

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Submissions	1658
Accepted submissions	1050
Submission ratio	63.33%
Authors	1034
Full solves [?]	995
Full solve Ratio	96.23%

#	User	Runtime	Language	Date
1	Matzuka	0.02 s	APL	2025-10-21 16:03:14

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2025-10-25 21:56:53

#	User	Runtime	Language	Date
1	Գոռ Բաղդասարյան	0.04 s	C#	2025-11-24 13:10:05
2	Dennis Stegnell	0.05 s	C#	2025-10-19 02:44:36
3	Deci Bel	0.05 s	C#	2025-10-21 18:47:01
4	Mark Nickelsen	0.05 s	C#	2025-11-16 17:12:38

#	User	Runtime	Language	Date
1	Brent Yorgey	0.00 s	Haskell	2025-10-15 22:22:03
2	Steinar Simonnes	0.00 s	Haskell	2025-10-17 08:12:34

#	User	Runtime	Language	Date
1	Saadhya	0.04 s	Java	2025-10-11 20:39:33
2	Serena Davis	0.04 s	Java	2025-10-11 20:40:35
3	Victor Liu	0.04 s	Java	2025-10-11 20:42:38
4	Fenghua Li	0.04 s	Java	2025-10-11 20:52:21
5	Sahasrad Chippa	0.04 s	Java	2025-10-11 20:57:03
6	Yuvraj Sahu	0.04 s	Java	2025-10-11 21:17:15
7	Cesar Gonzalez	0.04 s	Java	2025-10-11 21:27:02
8	Thomas Vinh	0.04 s	Java	2025-10-11 21:45:03
9	Matthew Sheldon	0.04 s	Java	2025-10-11 21:49:12
10	Shaan Keole	0.04 s	Java	2025-10-11 21:51:07

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	JavaScript (Node.js)	2025-11-29 19:58:55

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2025-10-15 13:42:00
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2025-10-19 22:57:10

#	User	Runtime	Language	Date
1	Timothy Gaede	0.56 s	Julia	2025-10-15 08:48:15
2	Danny Robinson	0.60 s	Julia	2025-10-25 21:59:00

#	User	Runtime	Language	Date
1	Adam Rankin	0.23 s	Kotlin	2026-01-12 23:06:40
2	Daniel Jarabek	0.24 s	Kotlin	2025-10-11 20:56:43
3	Ayden Coughlin	0.24 s	Kotlin	2025-10-11 21:35:20

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2025-10-20 11:29:56

#	User	Runtime	Language	Date
1	Quang Nguyen	0.04 s	Python 3	2025-10-11 20:38:32
2	Tasnim Rahman	0.04 s	Python 3	2025-10-11 20:43:48
3	Cayden Wong	0.04 s	Python 3	2025-10-11 20:43:50
4	Stanley Wei	0.04 s	Python 3	2025-10-11 20:48:09
5	Abdullah Al Rafi Mahmud	0.04 s	Python 3	2025-10-11 20:49:21
6	Hung Phan Quoc Viet	0.04 s	Python 3	2025-10-11 20:49:24
7	User 024	0.04 s	Python 3	2025-10-11 20:49:24
8	Lucas Weaver	0.04 s	Python 3	2025-10-11 20:51:05
9	Max Ficco	0.04 s	Python 3	2025-10-11 20:51:07
10	Alexandre Charland	0.04 s	Python 3	2025-10-11 20:51:31

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2025-10-16 10:56:16
2	Chenzhang Hu	0.06 s	Ruby	2025-10-16 14:44:10
3	Matzuka	0.07 s	Ruby	2025-10-21 15:52:06

#	User	Runtime	Language	Date
1	Pankajkumar Patro	0.00 s	Rust	2025-10-15 14:17:45
2	Vincent Lagerros	0.00 s	Rust	2025-10-15 15:22:51
3	Artur Khuziakhmetov	0.00 s	Rust	2025-10-16 15:05:48
4	Emil Dichmann	0.00 s	Rust	2025-10-18 18:19:22
5	Hidden user	0.00 s	Rust	2025-10-19 21:29:15
6	Frank Endriss	0.00 s	Rust	2025-10-27 09:12:27
7	Nathaniel Risum	0.00 s	Rust	2025-10-27 13:22:55
8	Hidden user	0.00 s	Rust	2025-10-30 20:19:04
9	Harald Langslet Kavli	0.00 s	Rust	2025-12-23 08:24:23

#	User	Runtime	Language	Date
1	Zach Tschetter	0.04 s	TypeScript	2025-10-27 22:53:58

#	User	Runtime	Language	Date
1	Grettir Heimisson	0.00 s	Zig	2025-10-31 21:10:25

#	User	Length	Language	Date
1	Matzuka	38	APL	2025-10-21 16:05:03

#	User	Length	Language	Date
1	Danny Robinson	55	Bash	2025-10-25 21:56:53

#	User	Length	Language	Date
1	Eyleifur Bjarkason	293	C	2025-10-31 18:27:01
2	Brian Stuart	318	C	2025-10-11 23:05:28
3	Sebastian Banert	396	C	2025-12-30 05:32:08
4	Fereshta Hasanzada	408	C	2025-12-16 16:46:21
5	Måns de la Rosa	422	C	2026-01-03 22:06:03
6	Ian Dvorin	470	C	2025-10-11 22:24:43
7	Birger Lundin	514	C	2025-12-23 16:53:49
8	James	595	C	2025-10-23 23:05:24
9	Quan Vo	600	C	2025-10-11 23:20:18
10	Jeviczki Jane	602	C	2025-10-28 20:18:59

#	User	Length	Language	Date
1	Deci Bel	414	C#	2025-10-21 18:47:01
2	Գոռ Բաղդասարյան	519	C#	2025-11-24 13:10:05
3	Mark Nickelsen	555	C#	2025-11-16 17:12:38
4	Dennis Stegnell	998	C#	2025-10-19 02:44:36

#	User	Length	Language	Date
1	Sven Rönnbäck	139	C++	2025-10-16 18:23:58
2	Kevin Song	200	C++	2025-10-12 00:00:56
3	Venkat Nikhil Kotagiri	218	C++	2025-10-11 21:23:39
4	Hidden user	221	C++	2025-10-26 22:06:40
5	Hidden user	228	C++	2025-10-25 20:36:27
6	Gilbert Lee	230	C++	2025-10-20 00:37:17
7	William Feng	235	C++	2025-10-11 20:54:06
8	Akksharvan Senthilkumar	235	C++	2025-10-11 21:16:04
9	Steve Chen	237	C++	2025-10-11 22:13:02
10	Nick Wu	237	C++	2025-10-15 06:11:56

#	User	Length	Language	Date
1	Steinar Simonnes	233	Haskell	2025-10-17 08:12:34
2	Brent Yorgey	339	Haskell	2025-10-15 22:22:03

#	User	Length	Language	Date
1	Tharun Sevvel	357	Java	2025-10-11 22:39:57
2	Hidden user	371	Java	2025-10-11 23:34:20
3	Terry Morris	375	Java	2026-01-09 22:16:08
4	User 008	406	Java	2025-10-11 21:52:40
5	Jonathan Cazalas	408	Java	2025-10-11 22:20:02
6	Hunter Mullen	411	Java	2025-10-11 21:59:06
7	Hanyu Ning	422	Java	2025-10-11 22:12:31
8	Matthijs De Vries	433	Java	2025-10-11 21:51:46
9	Isabel Humphreys	445	Java	2025-10-11 21:47:30
10	Luka Miodrag Starcevic	446	Java	2025-10-11 22:12:58

#	User	Length	Language	Date
1	Hidden user	751	JavaScript (Node.js)	2025-11-29 19:58:55

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	133	JavaScript (SpiderMonkey)	2025-10-19 22:57:10
2	Bjørn Chr. Soltvedt	485	JavaScript (SpiderMonkey)	2025-10-15 13:42:00

#	User	Length	Language	Date
1	Danny Robinson	73	Julia	2025-10-25 21:59:00
2	Timothy Gaede	253	Julia	2025-10-15 08:48:15

#	User	Length	Language	Date
1	Adam Rankin	249	Kotlin	2026-01-12 23:06:40
2	Daniel Jarabek	252	Kotlin	2025-10-11 20:56:43
3	Ayden Coughlin	4522	Kotlin	2025-10-11 21:35:20

#	User	Length	Language	Date
1	Ingemar Ragnemalm	1254	Pascal	2025-10-20 11:29:56

#	User	Length	Language	Date
1	Thomas Feld	52	Python 3	2025-10-16 10:58:57
2	Nicholas Russell Saerang	62	Python 3	2025-10-15 07:08:06
3	Lawry Sorenson	64	Python 3	2025-10-17 02:12:05
4	Michael Goldwasser	72	Python 3	2025-10-11 21:18:30
5	Si Jie Tan	75	Python 3	2026-01-08 15:31:08
6	Hidden user	77	Python 3	2025-11-20 13:29:39
7	Teikn Smith	78	Python 3	2025-11-30 01:48:50
8	Ahmed Chamseddine	79	Python 3	2025-10-15 10:10:53
9	David Worley	80	Python 3	2025-10-20 20:24:33
10	Ole Vik Lysne	80	Python 3	2025-10-28 14:44:44

#	User	Length	Language	Date
1	Thomas Feld	37	Ruby	2025-10-16 10:56:45
2	Chenzhang Hu	39	Ruby	2025-10-16 14:44:10
3	Matzuka	100	Ruby	2025-10-21 15:52:06

#	User	Length	Language	Date
1	Artur Khuziakhmetov	333	Rust	2025-10-16 15:05:48
2	Vincent Lagerros	341	Rust	2025-10-15 15:22:51
3	Emil Dichmann	348	Rust	2025-10-18 18:19:22
4	Pankajkumar Patro	566	Rust	2025-10-15 14:17:45
5	Harald Langslet Kavli	580	Rust	2025-12-23 08:24:23
6	Hidden user	687	Rust	2025-10-19 21:29:15
7	Nathaniel Risum	736	Rust	2025-10-27 13:22:55
8	Frank Endriss	2321	Rust	2025-10-27 09:12:27
9	Hidden user	10933	Rust	2025-10-30 20:19:04

#	User	Length	Language	Date
1	Zach Tschetter	171	TypeScript	2025-10-27 22:53:58

#	User	Length	Language	Date
1	Grettir Heimisson	3289	Zig	2025-10-31 21:10:25

Solution running time distribution