Problem A
Zyxab — Problem Statistics

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Submissions	2442
Accepted submissions	1697
Submission ratio	69.49%
Authors	770
Accepted authors	722
Author ratio	93.77%

#	User	Score	Language	Date
1	Bergur Snorrason	100	C	2021-04-29 11:45:33
2	Jacob Harris Cryer Kragh	100	C	2023-04-28 20:11:00
3	Sami Al Chalati	100	C	2024-08-11 20:04:18
4	Sebastian Banert	100	C	2024-09-28 18:13:01
5	Carson Echard	100	C	2024-10-25 17:31:45
6	Hidden user	100	C	2024-11-19 22:12:08
7	SUBATHRA V	100	C	2025-03-30 18:15:19
8	ELAMATHI S	100	C	2025-04-14 15:51:10
9	Naveen Kumar S	100	C	2025-04-22 16:47:45
10	William Ball	30	C	2022-01-03 06:54:09

#	User	Score	Language	Date
1	Ari Páll Agnarsson	100	Common Lisp	2021-04-22 11:34:53

#	User	Score	Language	Date
1	Jacob Harris Cryer Kragh	100	F#	2023-04-28 19:26:09
2	Jesper Bengtson	100	F#	2021-05-07 18:43:40

#	User	Score	Language	Date
1	Norbert Voelker	100	Go	2021-07-10 20:48:36
2	Andey Robins	100	Go	2021-08-23 17:04:44
3	suka isnaini	100	Go	2023-12-23 18:35:42
4	Thomas	100	Go	2024-02-03 22:28:05
5	Jack Kryger Sørensen	30	Go	2021-09-01 14:50:27

#	User	Score	Language	Date
1	Greg Gorlen	100	JavaScript (Node.js)	2022-02-19 21:22:19

#	User	Score	Language	Date
1	Bjørn Chr. Soltvedt	100	JavaScript (SpiderMonkey)	2021-04-21 23:24:42
2	Emanuel Pilz	100	JavaScript (SpiderMonkey)	2023-04-14 02:58:42
3	Zach Tschetter	100	JavaScript (SpiderMonkey)	2023-06-13 03:11:19
4	Christian Cederquist	100	JavaScript (SpiderMonkey)	2023-11-11 23:40:02

#	User	Score	Language	Date
1	Timothy Gaede	100	Julia	2024-04-10 08:04:06
2	Noszály Csaba	100	Julia	2025-04-07 17:31:04

#	User	Score	Language	Date
1	Sergey Jakobsen	100	Kotlin	2022-02-28 21:35:15
2	Sam Keyser	100	Kotlin	2022-08-09 04:12:05
3	Roger Bongers	100	Kotlin	2021-06-27 17:37:33
4	Adam Rankin	100	Kotlin	2023-05-08 21:22:52

#	User	Score	Language	Date
1	Shehab Ahmed Hatem	30	Lua	2023-11-17 13:54:27

#	User	Score	Language	Date
1	Hidden user	100	OCaml	2024-01-22 14:38:27

#	User	Score	Language	Date
1	Ingemar Ragnemalm	100	Pascal	2021-07-11 10:25:25

#	User	Score	Language	Date
1	Andriy Zyevakov	30	Prolog	2022-08-26 08:29:27

#	User	Score	Language	Date
1	Yanmarshus Bachtiar	100	Python 2	2021-05-31 10:20:29
2	Thomas Feld	100	Python 2	2021-06-24 09:56:37
3	Andreas Björklund	100	Python 2	2022-01-17 18:01:15
4	Gibransyah	100	Python 2	2022-03-26 04:16:28
5	Johan Lyts	30	Python 2	2021-04-30 14:01:05

#	User	Score	Language	Date
1	Thomas Feld	100	Ruby	2023-03-29 08:48:35

#	User	Score	Language	Date
1	Dalton Cole	100	Rust	2021-11-05 05:00:05
2	Bas Dirks	100	Rust	2021-12-29 17:29:23
3	poppyer	100	Rust	2022-05-05 02:19:30
4	Daniel Anker Hermansen	100	Rust	2023-05-20 16:01:23
5	Jeremy Lim	100	Rust	2023-11-22 18:29:26
6	David Rasch	100	Rust	2023-11-27 10:01:55
7	Isak Jägberg	100	Rust	2024-10-14 13:23:02
8	Vincent Lagerros	100	Rust	2024-12-10 00:54:53

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2021-04-29 11:45:33
2	Jacob Harris Cryer Kragh	0.00 s	C	2023-04-28 20:11:00
3	Sami Al Chalati	0.00 s	C	2024-08-11 20:04:18
4	Sebastian Banert	0.00 s	C	2024-09-28 18:13:01
5	Carson Echard	0.00 s	C	2024-10-25 17:31:45
6	Hidden user	0.00 s	C	2024-11-19 22:12:08
7	SUBATHRA V	0.00 s	C	2025-03-30 18:15:19
8	ELAMATHI S	0.00 s	C	2025-04-14 15:51:10
9	Naveen Kumar S	0.00 s	C	2025-04-22 16:47:45

#	User	Runtime	Language	Date
1	Mahmood Nouraei	0.04 s	C#	2022-08-02 11:50:30
2	Fabian	0.04 s	C#	2022-08-09 14:40:56
3	Ivan Burkett	0.04 s	C#	2023-04-12 02:23:45
4	Hidden user	0.04 s	C#	2024-04-13 23:46:12
5	Adam Imbert	0.05 s	C#	2021-04-25 05:07:18
6	jure ivšek	0.05 s	C#	2025-02-23 10:26:11
7	Deci Bel	0.05 s	C#	2025-05-15 16:28:30
8	Umar Rasyid	0.05 s	C#	2025-07-06 21:50:25
9	Mikael Fiala-Lundström	0.06 s	C#	2021-06-15 16:19:44
10	Yuwono Bangun Nagoro	0.06 s	C#	2022-03-28 06:20:16

#	User	Runtime	Language	Date
1	Ari Páll Agnarsson	0.01 s	Common Lisp	2021-04-22 11:34:53

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.08 s	F#	2023-04-28 19:26:09
2	Jesper Bengtson	0.09 s	F#	2021-05-07 18:43:40

#	User	Runtime	Language	Date
1	Norbert Voelker	0.00 s	Go	2021-07-10 20:48:36
2	Andey Robins	0.00 s	Go	2021-08-23 17:04:44
3	suka isnaini	0.00 s	Go	2023-12-23 18:35:42
4	Thomas	0.00 s	Go	2024-02-03 22:28:05

#	User	Runtime	Language	Date
1	vagabundus	0.00 s	Haskell	2024-05-04 19:47:36
2	Simon Reid	0.00 s	Haskell	2025-02-28 03:32:36
3	Brent Yorgey	0.01 s	Haskell	2021-04-22 04:24:10
4	Hidden user	0.01 s	Haskell	2021-06-05 11:32:45
5	Erik von Brömssen	0.01 s	Haskell	2021-06-19 19:10:58
6	Greg Gorlen	0.01 s	Haskell	2022-02-19 21:44:09
7	Øyvind Almli	0.01 s	Haskell	2022-02-23 12:39:43
8	Ng Tek In	0.01 s	Haskell	2022-08-28 18:46:44
9	Mason Barnhill	0.01 s	Haskell	2023-05-29 06:58:53
10	Sebastian Banert	0.01 s	Haskell	2023-09-05 23:31:40

#	User	Runtime	Language	Date
1	William Liu	0.05 s	Java	2024-03-13 16:10:08
2	Crystal Sharpe	0.06 s	Java	2021-04-28 08:47:21
3	Emil Houlborg	0.06 s	Java	2021-05-07 17:45:04
4	Liam Keliher	0.06 s	Java	2021-05-28 02:02:48
5	Logan Pipes	0.06 s	Java	2021-06-03 01:06:05
6	Stela Palii	0.06 s	Java	2022-02-10 06:52:20
7	Mariann Løtvedt	0.06 s	Java	2022-07-13 18:26:51
8	Amy Colpitts	0.06 s	Java	2023-08-09 01:26:21
9	Joas Haunstrup	0.07 s	Java	2021-05-07 16:36:40
10	Theodoric Keith Lim	0.07 s	Java	2021-05-19 00:54:40

#	User	Runtime	Language	Date
1	Greg Gorlen	0.06 s	JavaScript (Node.js)	2022-02-19 21:22:19

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2021-04-21 23:24:42
2	Emanuel Pilz	0.02 s	JavaScript (SpiderMonkey)	2023-04-14 02:58:42
3	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2023-06-13 03:11:19
4	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-11-11 23:40:02

#	User	Runtime	Language	Date
1	Timothy Gaede	0.63 s	Julia	2024-04-10 08:04:06
2	Noszály Csaba	0.80 s	Julia	2025-04-07 17:31:04

#	User	Runtime	Language	Date
1	Sergey Jakobsen	0.21 s	Kotlin	2022-02-28 21:35:15
2	Sam Keyser	0.22 s	Kotlin	2022-08-09 04:12:05
3	Roger Bongers	0.24 s	Kotlin	2021-06-27 17:37:33
4	Adam Rankin	0.26 s	Kotlin	2023-05-08 21:22:52

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	OCaml	2024-01-22 14:38:27

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2021-07-11 10:25:25

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.03 s	Python 2	2021-05-31 10:20:29
2	Thomas Feld	0.03 s	Python 2	2021-06-24 09:56:37
3	Andreas Björklund	0.03 s	Python 2	2022-01-17 18:01:15
4	Gibransyah	0.03 s	Python 2	2022-03-26 04:16:28

#	User	Runtime	Language	Date
1	Shivesh Gupta	0.04 s	Python 3	2024-08-31 22:43:34
2	Angelo Matthew Pimienta	0.04 s	Python 3	2024-09-13 21:30:30
3	Brandon Lau	0.04 s	Python 3	2024-09-17 14:27:38
4	Richard Nguyen	0.04 s	Python 3	2024-09-27 21:09:29
5	Simen Sørensen	0.04 s	Python 3	2024-10-17 14:57:44
6	Orlando Martínez García	0.04 s	Python 3	2024-10-29 01:50:54
7	Iver Andreas Omholt	0.04 s	Python 3	2024-10-30 17:38:13
8	Katlyn	0.04 s	Python 3	2024-11-15 22:18:51
9	Zsolt Németh	0.04 s	Python 3	2024-11-18 11:46:42
10	Abel Lu	0.04 s	Python 3	2024-11-22 16:34:54

#	User	Runtime	Language	Date
1	Thomas Feld	0.07 s	Ruby	2023-03-29 08:48:35

#	User	Runtime	Language	Date
1	Dalton Cole	0.00 s	Rust	2021-11-05 05:00:05
2	Bas Dirks	0.00 s	Rust	2021-12-29 17:29:23
3	poppyer	0.00 s	Rust	2022-05-05 02:19:30
4	Daniel Anker Hermansen	0.00 s	Rust	2023-05-20 16:01:23
5	Jeremy Lim	0.00 s	Rust	2023-11-22 18:29:26
6	David Rasch	0.00 s	Rust	2023-11-27 10:01:55
7	Isak Jägberg	0.00 s	Rust	2024-10-14 13:23:02
8	Vincent Lagerros	0.00 s	Rust	2024-12-10 00:54:53

#	User	Length	Language	Date
1	Hidden user	792	C	2024-11-19 22:12:08
2	Naveen Kumar S	888	C	2025-04-22 16:47:45
3	Sami Al Chalati	953	C	2024-08-11 20:04:18
4	Sebastian Banert	1073	C	2024-09-28 18:13:01
5	ELAMATHI S	1146	C	2025-04-14 15:51:10
6	Carson Echard	1271	C	2024-10-25 17:31:45
7	Jacob Harris Cryer Kragh	1325	C	2023-04-28 20:11:00
8	SUBATHRA V	1568	C	2025-03-30 18:15:19
9	Bergur Snorrason	1942	C	2021-04-29 11:45:33

#	User	Length	Language	Date
1	Leslie Yip	734	C#	2022-09-17 10:55:54
2	jure ivšek	953	C#	2025-02-23 10:28:02
3	Umar Rasyid	1050	C#	2025-07-06 21:50:25
4	Mikael Fiala-Lundström	1103	C#	2021-06-15 16:19:44
5	Yuwono Bangun Nagoro	1205	C#	2022-03-28 06:20:16
6	Ali Aliev	1227	C#	2022-07-20 16:04:32
7	Deci Bel	1245	C#	2025-05-15 16:28:30
8	Hidden user	1458	C#	2024-04-13 23:46:12
9	Ivan Burkett	1859	C#	2023-04-12 02:23:45
10	Agnes Odenman	1879	C#	2022-11-22 09:35:00

#	User	Length	Language	Date
1	Chance Parsons	321	C++	2022-10-27 19:13:46
2	Lukas Fried	399	C++	2022-11-29 19:29:27
3	Andrea Puddu	441	C++	2024-09-04 01:45:32
4	a_b__c	445	C++	2021-06-16 12:45:47
5	Caeden Whitaker	447	C++	2021-06-18 01:56:01
6	Yeung Man Tsung	451	C++	2022-11-29 09:05:51
7	Pascal Zeihen	475	C++	2025-06-12 20:08:10
8	Grae Yeandle	486	C++	2021-04-22 19:43:21
9	Jason Liu	498	C++	2024-05-17 04:23:10
10	traxex	516	C++	2023-12-12 20:39:46

#	User	Length	Language	Date
1	Ari Páll Agnarsson	4309	Common Lisp	2021-04-22 11:34:53

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	803	F#	2023-04-28 19:26:09
2	Jesper Bengtson	2134	F#	2021-05-07 18:43:40

#	User	Length	Language	Date
1	suka isnaini	670	Go	2023-12-23 18:45:24
2	Norbert Voelker	901	Go	2021-07-10 21:25:23
3	Andey Robins	1179	Go	2021-08-23 17:04:44
4	Thomas	1248	Go	2024-02-03 22:28:05

#	User	Length	Language	Date
1	Øyvind Almli	335	Haskell	2022-02-23 12:39:43
2	Steinar Simonnes	384	Haskell	2024-01-18 16:50:57
3	Sebastian Banert	390	Haskell	2023-09-05 23:31:40
4	Mason Barnhill	436	Haskell	2023-05-29 06:58:53
5	Erik von Brömssen	469	Haskell	2021-06-19 19:10:58
6	Miguel Roldán Muñoz	579	Haskell	2024-06-03 00:22:19
7	Greg Gorlen	591	Haskell	2022-02-19 22:08:59
8	Ng Tek In	624	Haskell	2022-08-28 18:46:44
9	Simon Reid	872	Haskell	2025-02-28 03:32:36
10	vagabundus	1097	Haskell	2024-05-04 19:47:36

#	User	Length	Language	Date
1	Crystal Sharpe	836	Java	2021-04-28 08:47:21
2	Doug Goodman	961	Java	2021-10-16 18:52:38
3	Francis Ian Arevalo	1004	Java	2023-05-02 17:52:24
4	Nathan Nguyen	1048	Java	2022-03-07 20:44:26
5	Nguyen Phuoc Bao Hoang	1054	Java	2021-07-15 03:11:51
6	Issa Issack	1056	Java	2023-08-09 00:40:16
7	Nadja Brix Koch	1070	Java	2021-05-07 17:11:14
8	Anton Sandin	1098	Java	2022-05-02 19:09:43
9	Hunter Mullen	1118	Java	2025-02-11 04:38:54
10	Bowen Yang	1148	Java	2022-11-24 20:39:26

#	User	Length	Language	Date
1	Greg Gorlen	520	JavaScript (Node.js)	2022-02-19 21:22:19

#	User	Length	Language	Date
1	Zach Tschetter	305	JavaScript (SpiderMonkey)	2023-06-13 03:11:19
2	Bjørn Chr. Soltvedt	480	JavaScript (SpiderMonkey)	2021-04-21 23:24:42
3	Christian Cederquist	591	JavaScript (SpiderMonkey)	2023-11-11 23:40:02
4	Emanuel Pilz	860	JavaScript (SpiderMonkey)	2023-04-14 02:58:42

#	User	Length	Language	Date
1	Noszály Csaba	462	Julia	2025-04-07 17:31:04
2	Timothy Gaede	842	Julia	2024-04-10 08:04:06

#	User	Length	Language	Date
1	Sam Keyser	406	Kotlin	2022-08-09 04:12:05
2	Roger Bongers	575	Kotlin	2021-06-27 17:37:33
3	Sergey Jakobsen	620	Kotlin	2022-02-28 22:01:06
4	Adam Rankin	734	Kotlin	2023-05-08 21:22:52

#	User	Length	Language	Date
1	Hidden user	620	OCaml	2024-01-22 14:38:27

#	User	Length	Language	Date
1	Ingemar Ragnemalm	2400	Pascal	2021-07-11 10:25:25

#	User	Length	Language	Date
1	Thomas Feld	212	Python 2	2021-06-24 09:56:37
2	Andreas Björklund	320	Python 2	2022-01-17 18:01:15
3	Yanmarshus Bachtiar	432	Python 2	2021-05-31 10:20:29
4	Gibransyah	535	Python 2	2022-03-26 04:16:28

#	User	Length	Language	Date
1	Clement Oh	97	Python 3	2023-08-13 09:55:39
2	Erik Adebahr	106	Python 3	2024-04-13 17:25:48
3	Jakob Rødal Skaar	114	Python 3	2023-11-14 15:49:38
4	Tai Tze Kin	115	Python 3	2024-05-09 10:50:21
5	Jayden Pahukula	128	Python 3	2023-12-04 23:22:26
6	Øyvind Almli	144	Python 3	2022-02-23 13:45:03
7	Nicholas Russell Saerang	148	Python 3	2023-08-11 16:47:43
8	Charles Ancheta	154	Python 3	2023-03-25 07:01:21
9	Mathias Magnusson	158	Python 3	2023-11-17 20:28:35
10	Seyed Mohammad Seyedi	168	Python 3	2025-05-11 14:51:56

#	User	Length	Language	Date
1	Thomas Feld	81	Ruby	2023-03-29 08:48:35

#	User	Length	Language	Date
1	Vincent Lagerros	278	Rust	2024-12-10 00:55:41
2	Isak Jägberg	695	Rust	2024-10-14 13:23:02
3	David Rasch	813	Rust	2023-11-27 10:01:55
4	poppyer	835	Rust	2022-05-05 02:19:30
5	Jeremy Lim	908	Rust	2023-11-22 18:29:26
6	Bas Dirks	1078	Rust	2021-12-29 17:29:23
7	Dalton Cole	1228	Rust	2021-11-05 05:00:05
8	Daniel Anker Hermansen	16807	Rust	2023-05-20 16:01:23

Solution running time distribution