Problem F
Anti-Palindrome — Problem Statistics

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Submissions	2615
Accepted submissions	872
Submission ratio	33.35%
Authors	805
Accepted authors	703
Author ratio	87.33%

#	User	Runtime	Language	Date
1	Matzuka	0.01 s	APL	2025-03-24 18:10:14

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.03 s	Bash	2024-06-28 17:30:08

#	User	Runtime	Language	Date
1	traxex	0.05 s	C#	2024-05-08 13:42:18
2	Johan Törnqvist	0.05 s	C#	2024-11-13 09:32:59
3	Filip Lunestad	0.05 s	C#	2025-03-12 09:01:48
4	Roberto Rodriguez Giorgetti	0.06 s	C#	2024-10-02 19:16:14
5	Hamdanil Rasyid	0.06 s	C#	2024-12-09 07:30:15
6	Deci Bel	0.06 s	C#	2025-04-05 19:05:19
7	Gregory Sinclair	0.07 s	C#	2023-11-30 05:21:00
8	Taekwan Yoon	0.07 s	C#	2024-03-05 19:15:43
9	Felipe Duarte	0.08 s	C#	2025-02-22 13:19:53
10	Michael Damsgaard	0.11 s	C#	2024-11-04 20:10:12

#	User	Runtime	Language	Date
1	Vincent Buchner	0.30 s	Erlang	2025-05-15 18:14:07

#	User	Runtime	Language	Date
1	Bjørn Dons	0.00 s	Go	2023-11-07 20:50:18
2	Norbert Voelker	0.00 s	Go	2023-11-09 12:04:59
3	Christopher Will	0.00 s	Go	2024-01-23 15:05:46
4	Fauverick	0.00 s	Go	2024-09-26 00:46:39
5	Jordan H	0.00 s	Go	2025-04-09 15:48:51

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2023-11-05 23:29:15
2	Brent Yorgey	0.00 s	Haskell	2023-11-07 21:17:48
3	Steinar Simonnes	0.00 s	Haskell	2024-03-23 15:12:17
4	Gustaf Pihl	0.00 s	Haskell	2024-04-13 23:36:45
5	Joe Little	0.00 s	Haskell	2024-09-17 00:11:36
6	Jan Hrček	0.00 s	Haskell	2024-12-18 19:16:51
7	Ng Tek In	0.01 s	Haskell	2024-11-26 15:32:20
8	Hidden user	0.01 s	Haskell	2024-12-01 03:33:33

#	User	Runtime	Language	Date
1	Markus Bao	0.04 s	Java	2024-09-13 00:04:17
2	Guangyi Zhou	0.04 s	Java	2024-12-15 15:57:01
3	Daniel Gutierrez Duarte	0.04 s	Java	2025-03-04 17:33:54
4	Sasha Hydrie	0.06 s	Java	2023-11-04 18:06:53
5	Andrew Fergel	0.06 s	Java	2023-11-04 18:23:10
6	William Walker	0.06 s	Java	2023-11-04 18:55:38
7	Ben Cobb	0.06 s	Java	2023-11-07 05:43:24
8	Sven Rönnbäck	0.06 s	Java	2023-11-16 20:23:07
9	Chin Zhen Jie	0.06 s	Java	2023-12-25 20:42:15
10	Julius Griebel	0.06 s	Java	2024-01-17 21:20:28

#	User	Runtime	Language	Date
1	Alexandre Paez	0.04 s	JavaScript (Node.js)	2025-05-06 22:59:07
2	Sam Schneider	0.05 s	JavaScript (Node.js)	2024-02-11 01:46:50
3	Richard Silvertass	0.05 s	JavaScript (Node.js)	2024-03-14 15:25:23

#	User	Runtime	Language	Date
1	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-11-05 08:57:53
2	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-08-01 23:59:00
3	Zach Tschetter	0.02 s	JavaScript (SpiderMonkey)	2025-02-15 01:05:42
4	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2023-11-05 00:12:51

#	User	Runtime	Language	Date
1	Timothy Gaede	0.56 s	Julia	2024-03-27 02:31:20
2	Danny Robinson	0.67 s	Julia	2024-11-14 22:00:29

#	User	Runtime	Language	Date
1	Adam Rankin	0.19 s	Kotlin	2023-11-12 19:18:02
2	Martijn Muijsers	0.19 s	Kotlin	2024-06-03 15:02:25
3	Stephen Atwood	0.22 s	Kotlin	2024-09-10 19:00:54

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2024-05-31 09:58:03

#	User	Runtime	Language	Date
1	Greg Gorlen	0.00 s	Perl	2024-02-24 16:20:43

#	User	Runtime	Language	Date
1	Renate	0.01 s	PHP	2023-12-04 01:32:46
2	Susanne Ragnemalm	0.01 s	PHP	2024-04-01 10:54:05

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.03 s	Python 2	2024-03-06 12:53:49

#	User	Runtime	Language	Date
1	Daniela Cojab Mizrahi	0.04 s	Python 3	2024-09-04 22:36:03
2	Spencer Lee	0.04 s	Python 3	2024-09-06 01:22:13
3	Brandon Young	0.04 s	Python 3	2024-09-06 01:40:53
4	Sriram Sai Ganesh	0.04 s	Python 3	2024-09-06 01:56:33
5	Ana Victoria Ramírez de Alba Rodríguez	0.04 s	Python 3	2024-09-06 02:16:10
6	Mira H	0.04 s	Python 3	2024-09-09 20:09:06
7	Ragav Janardhan	0.04 s	Python 3	2024-09-11 16:33:36
8	Jonathan de Koning	0.04 s	Python 3	2024-09-14 18:51:45
9	Lars Jaffke	0.04 s	Python 3	2024-09-19 14:20:19
10	Paul Berend	0.04 s	Python 3	2024-09-19 22:42:17

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-11-07 13:26:44
2	Miorel Palii	0.06 s	Ruby	2024-01-15 20:43:21

#	User	Runtime	Language	Date
1	Magnus Eide-Fredriksen	0.00 s	Rust	2023-11-05 23:46:07
2	David Rasch	0.00 s	Rust	2023-11-07 10:03:59
3	David Vinje	0.00 s	Rust	2023-11-25 15:32:51
4	Bas Dirks	0.00 s	Rust	2023-12-25 18:47:52
5	Frank Endriss	0.00 s	Rust	2024-06-06 16:55:14
6	Isak Jägberg	0.00 s	Rust	2024-10-29 15:11:38
7	Vincent Lagerros	0.00 s	Rust	2025-02-26 17:18:23

#	User	Runtime	Language	Date
1	Soren Basnet	0.05 s	TypeScript	2025-05-16 23:14:22

#	User	Length	Language	Date
1	Matzuka	522	APL	2025-03-24 18:10:14

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-06-28 17:30:08

#	User	Length	Language	Date
1	Elias Björk	289	C	2025-06-09 15:06:47
2	Hidden user	641	C	2024-02-23 22:26:32
3	Hidden user	648	C	2024-11-27 04:50:11
4	Daniel Anando	713	C	2024-12-11 10:54:07
5	Brooklyn Nguyen	753	C	2025-01-31 03:17:56
6	Mikael K Eriksson	768	C	2024-02-21 22:31:44
7	MUTHURAJAN G	827	C	2025-04-10 17:26:25
8	Nnodim Daniel	831	C	2025-05-16 04:57:31
9	Hidden user	857	C	2024-10-03 22:23:17
10	Martin Llano	916	C	2024-10-23 06:57:37

#	User	Length	Language	Date
1	Gregory Sinclair	353	C#	2023-11-30 05:21:00
2	traxex	403	C#	2024-05-08 13:42:18
3	Filip Lunestad	626	C#	2025-03-12 09:01:48
4	Hamdanil Rasyid	843	C#	2024-12-09 07:30:15
5	Felipe Duarte	898	C#	2025-02-22 13:19:53
6	Johan Törnqvist	1450	C#	2024-11-13 09:32:59
7	Deci Bel	1549	C#	2025-04-05 19:05:19
8	Roberto Rodriguez Giorgetti	1660	C#	2024-10-02 19:16:14
9	Michael Damsgaard	1765	C#	2024-11-04 20:10:12
10	Taekwan Yoon	1846	C#	2024-03-05 19:15:43

#	User	Length	Language	Date
1	Frans Meulenbroeks	257	C++	2025-02-18 17:49:27
2	Alex Rudzenis	385	C++	2024-10-27 15:54:54
3	Nick Wu	422	C++	2023-11-05 05:46:37
4	Armen Andreasyan	431	C++	2023-11-13 04:57:26
5	Grae Yeandle	441	C++	2023-11-17 15:15:18
6	Humster 228	446	C++	2025-04-19 13:24:23
7	Abid Hasan	450	C++	2023-12-31 16:45:33
8	C3Speedrun2024	453	C++	2024-12-10 14:47:34
9	Samin Abdullah Rafi	476	C++	2023-12-31 16:20:20
10	Max Naumann	477	C++	2025-05-22 17:10:13

#	User	Length	Language	Date
1	Vincent Buchner	1513	Erlang	2025-05-15 18:14:07

#	User	Length	Language	Date
1	Fauverick	690	Go	2024-09-26 00:46:39
2	Norbert Voelker	707	Go	2023-11-09 12:04:59
3	Bjørn Dons	752	Go	2023-11-07 20:50:18
4	Jordan H	811	Go	2025-04-09 15:48:51
5	Christopher Will	1284	Go	2024-01-23 15:05:46

#	User	Length	Language	Date
1	Jan Hrček	153	Haskell	2024-12-18 19:16:51
2	Brent Yorgey	167	Haskell	2023-11-07 21:32:49
3	Gustaf Pihl	169	Haskell	2024-04-14 00:08:28
4	Steinar Simonnes	335	Haskell	2024-03-23 15:13:37
5	Hidden user	412	Haskell	2023-11-05 23:29:15
6	Joe Little	429	Haskell	2024-09-17 00:11:36
7	Hidden user	716	Haskell	2024-12-01 03:33:33
8	Ng Tek In	1583	Haskell	2024-11-26 15:32:20

#	User	Length	Language	Date
1	Ian Bailey	536	Java	2024-02-22 01:31:18
2	Raymond Arrington	642	Java	2024-06-30 07:32:28
3	Holly Storøy	652	Java	2025-04-10 15:01:21
4	Ian Mahendra Setiawan	658	Java	2025-01-25 04:32:06
5	Mack Wong Yoong Yee	684	Java	2024-02-23 09:20:10
6	Benjamin TheilmannGohr	687	Java	2023-11-04 18:22:10
7	jobjørn_myren	701	Java	2025-04-10 15:34:31
8	Nurain Jiwani	727	Java	2023-11-04 21:50:43
9	Oskar Niesen	728	Java	2023-11-04 18:23:45
10	Jack Bartell	757	Java	2023-11-04 18:23:29

#	User	Length	Language	Date
1	Richard Silvertass	700	JavaScript (Node.js)	2024-03-14 15:25:23
2	Sam Schneider	722	JavaScript (Node.js)	2024-02-11 01:46:50
3	Alexandre Paez	1068	JavaScript (Node.js)	2025-05-06 22:59:30

#	User	Length	Language	Date
1	Jimmy Gustafsson	151	JavaScript (SpiderMonkey)	2024-08-01 23:59:00
2	Christian Cederquist	244	JavaScript (SpiderMonkey)	2023-11-05 08:57:53
3	Bjørn Chr. Soltvedt	249	JavaScript (SpiderMonkey)	2023-11-05 00:37:02
4	Zach Tschetter	360	JavaScript (SpiderMonkey)	2025-02-15 01:05:42

#	User	Length	Language	Date
1	Danny Robinson	184	Julia	2024-11-14 22:00:29
2	Timothy Gaede	585	Julia	2024-03-27 02:31:20

#	User	Length	Language	Date
1	Stephen Atwood	378	Kotlin	2024-09-10 18:37:55
2	Adam Rankin	493	Kotlin	2023-11-12 19:18:02
3	Martijn Muijsers	680	Kotlin	2024-06-03 15:02:25

#	User	Length	Language	Date
1	Ingemar Ragnemalm	722	Pascal	2024-05-31 09:58:03

#	User	Length	Language	Date
1	Greg Gorlen	567	Perl	2024-02-24 16:20:43

#	User	Length	Language	Date
1	Susanne Ragnemalm	806	PHP	2024-04-01 10:54:05
2	Renate	1087	PHP	2023-12-04 01:32:46

#	User	Length	Language	Date
1	Yanmarshus Bachtiar	271	Python 2	2024-03-06 12:53:49

#	User	Length	Language	Date
1	Alexandre Charland	107	Python 3	2024-09-26 23:57:41
2	Martin Nester	111	Python 3	2024-03-02 02:45:36
3	Michael Lineweaver	111	Python 3	2024-03-13 21:53:25
4	Guillaume Tardif	116	Python 3	2024-09-26 23:19:36
5	Peter Stauder	147	Python 3	2024-02-06 20:13:00
6	Ryan Farrell	160	Python 3	2024-01-02 21:51:39
7	Daniela Cojab Mizrahi	163	Python 3	2024-09-04 22:36:03
8	Tomás Tarno del Val	163	Python 3	2024-10-29 03:41:58
9	Raghav Shiwakoti	163	Python 3	2024-11-29 19:36:50
10	Soni Salame Tache	163	Python 3	2025-04-02 16:44:14

#	User	Length	Language	Date
1	Thomas Feld	50	Ruby	2023-11-07 13:33:34
2	Miorel Palii	139	Ruby	2024-01-15 20:43:21

#	User	Length	Language	Date
1	David Rasch	529	Rust	2023-11-07 10:03:59
2	Vincent Lagerros	601	Rust	2025-02-26 17:18:23
3	David Vinje	987	Rust	2023-11-25 15:32:51
4	Frank Endriss	1085	Rust	2024-06-06 16:55:14
5	Magnus Eide-Fredriksen	1150	Rust	2023-11-05 23:46:07
6	Bas Dirks	1196	Rust	2023-12-25 18:47:52
7	Isak Jägberg	1878	Rust	2024-10-29 15:11:38

#	User	Length	Language	Date
1	Soren Basnet	719	TypeScript	2025-05-16 23:14:22

Solution running time distribution