Problem A
Array Smoothening — Problem Statistics

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Submissions	7009
Accepted submissions	6605
Submission ratio	94.24%
Authors	1678
Full solves [?]	1303
Full solve Ratio	77.65%

#	User	Score	Language	Date
1	Chenzhang Hu	100	Bash	2024-04-08 15:03:16

#	User	Score	Language	Date
1	Bergur Snorrason	100	C	2022-07-26 10:46:04
2	ALAM MOHAMMAD SHADAB	100	C	2024-03-03 16:51:43
3	Saito Ta	100	C	2024-04-08 11:13:31
4	Hjörtur Björnsson	100	C	2024-09-03 22:25:43
5	Ata Kırcadağ	100	C	2025-05-01 15:05:34
6	Mirel Cosulschi	100	C	2025-05-25 09:42:22
7	Arni Alfredsson	80	C	2024-09-03 15:50:35
8	Santi	60	C	2026-01-02 04:10:21
9	Eyleifur Bjarkason	50	C	2024-09-03 23:57:43
10	Pallavi Sowl	30	C	2022-05-24 03:11:03

#	User	Score	Language	Date
1	Benny Antonsson	100	C#	2022-04-18 18:24:34
2	Mikael Fiala-Lundström	100	C#	2022-05-11 00:02:01
3	Stoffe Malmberg	100	C#	2022-12-09 15:12:26
4	Ethan Johnson	100	C#	2024-03-06 05:50:43
5	Mateo Fernandez-Tyson	100	C#	2024-11-18 03:06:50
6	Andriy Zyevakov	100	C#	2025-03-15 09:45:40
7	Max Hansen	80	C#	2022-05-24 09:08:37
8	Maykal Droshev	80	C#	2023-06-28 22:15:35
9	Iver Sande	80	C#	2024-06-17 08:57:27
10	Elise Chevalier	80	C#	2024-12-16 23:33:44

#	User	Score	Language	Date
1	Marcus Salzer	30	Dart	2024-07-16 19:23:22

#	User	Score	Language	Date
1	Ethan Woodrum	50	F#	2024-03-12 21:43:03

#	User	Score	Language	Date
1	Norbert Voelker	100	Go	2022-04-12 17:36:21
2	Faizan Khalid	100	Go	2022-10-15 16:32:16
3	Thomas	100	Go	2024-01-17 20:20:32
4	Marcus Henrik Simonsen	100	Go	2025-10-16 08:46:10
5	Bjørn Mikkelsen	60	Go	2022-04-20 13:18:59
6	Diego Saldias	30	Go	2023-10-28 16:36:42

#	User	Score	Language	Date
1	Hidden user	100	Haskell	2022-04-29 23:59:12
2	Brent Yorgey	100	Haskell	2023-03-16 10:45:35
3	Steinar Simonnes	100	Haskell	2024-01-15 11:41:02
4	Shinji Koshida	100	Haskell	2024-12-28 15:02:52
5	Alex Marion	80	Haskell	2024-06-10 17:48:27
6	Åsmund Kløvstad	80	Haskell	2024-11-12 17:15:37
7	Erik Hesselink	60	Haskell	2022-06-23 16:28:51
8	Perigord Truffle	0	Haskell	2023-05-28 14:49:51

#	User	Score	Language	Date
1	Toa Pita	80	JavaScript (Node.js)	2022-06-10 05:01:28
2	Andreas Limi	80	JavaScript (Node.js)	2022-11-09 18:11:12
3	Philippe C. Léger	60	JavaScript (Node.js)	2024-10-04 19:15:10
4	Samuel Högfeldt	0	JavaScript (Node.js)	2022-06-21 17:33:23
5	LUCAS RAMIREZ VARAS	0	JavaScript (Node.js)	2022-06-30 21:00:10
6	Nikola Stojkovski	0	JavaScript (Node.js)	2022-08-15 15:24:21
7	Hidden user	0	JavaScript (Node.js)	2023-02-14 09:38:05

#	User	Score	Language	Date
1	Bjørn Chr. Soltvedt	100	JavaScript (SpiderMonkey)	2022-04-17 03:26:04
2	Christian Pilegaard Cederquist	100	JavaScript (SpiderMonkey)	2022-11-13 15:35:28
3	Jimmy Gustafsson	100	JavaScript (SpiderMonkey)	2024-07-22 13:11:20

#	User	Score	Language	Date
1	Timothy Gaede	100	Julia	2024-07-20 08:44:04

#	User	Score	Language	Date
1	poppyer	100	Kotlin	2022-07-02 06:05:16
2	Jesper Bech Christensen	100	Kotlin	2023-09-26 17:22:47
3	Adam Rankin	50	Kotlin	2023-05-07 04:23:13

#	User	Score	Language	Date
1	thedvd98	100	OCaml	2024-07-11 22:18:17
2	Jinwoo Lee	50	OCaml	2025-09-16 04:56:23

#	User	Score	Language	Date
1	Saito Ta	100	Perl	2024-04-08 11:36:20
2	Billy James Brightraven	100	Perl	2024-09-10 18:24:29
3	Linus Nordström	100	Perl	2024-09-10 18:59:04

#	User	Score	Language	Date
1	Gustav Berg	0	PHP	2022-04-21 18:22:37

#	User	Score	Language	Date
1	Agis Daniels	100	Python 2	2022-11-30 14:33:40
2	Yanmarshus Bachtiar	100	Python 2	2023-02-15 12:34:02
3	Robert Cooper Vandiver	0	Python 2	2022-05-18 02:19:36

#	User	Score	Language	Date
1	Thomas Feld	100	Ruby	2023-02-27 10:29:31
2	Matzuka	100	Ruby	2025-12-21 20:17:05
3	Alexander Bilde Pedersen	60	Ruby	2023-04-10 18:42:11
4	Frederik Petersen	0	Ruby	2022-08-31 15:36:29

#	User	Score	Language	Date
1	Philippe C. Léger	30	TypeScript	2024-10-04 17:13:27

#	User	Score	Language	Date
1	arthur	100	Zig	2024-07-17 09:47:02
2	Joe Blower	100	Zig	2025-05-31 19:02:13

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.21 s	Bash	2024-04-08 15:03:16

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.01 s	C	2022-07-26 10:46:04
2	Saito Ta	0.01 s	C	2024-04-08 11:13:31
3	Hjörtur Björnsson	0.02 s	C	2024-09-03 22:43:00
4	ALAM MOHAMMAD SHADAB	0.05 s	C	2024-03-03 17:13:00
5	Ata Kırcadağ	0.05 s	C	2025-05-01 15:05:34
6	Mirel Cosulschi	0.06 s	C	2025-05-25 09:42:22

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.13 s	C#	2025-03-15 09:45:40
2	Stoffe Malmberg	0.18 s	C#	2022-12-09 15:12:26
3	Ethan Johnson	0.19 s	C#	2024-03-06 05:51:46
4	Mikael Fiala-Lundström	0.20 s	C#	2022-05-11 00:02:01
5	Benny Antonsson	0.25 s	C#	2022-04-18 18:24:34
6	Mateo Fernandez-Tyson	0.35 s	C#	2024-11-18 03:06:50

#	User	Runtime	Language	Date
1	Bernard Teo	0.02 s	C++	2022-04-30 18:27:08
2	Jonathan Hallström	0.02 s	C++	2022-08-31 16:19:15
3	Agis Daniels	0.02 s	C++	2022-11-30 20:23:50
4	Bergur Snorrason	0.03 s	C++	2022-07-26 10:35:26
5	Asmus Tørsleff	0.03 s	C++	2022-08-17 16:22:43
6	Nick Wu	0.03 s	C++	2023-06-04 22:50:18
7	Eliza Toma	0.03 s	C++	2024-06-28 20:18:50
8	Audrey Felicio Anwar	0.04 s	C++	2022-03-29 04:54:39
9	Lee Isaac	0.04 s	C++	2022-03-29 15:16:07
10	Trần Thanh Nhân	0.04 s	C++	2022-05-27 16:02:35

#	User	Runtime	Language	Date
1	Thomas	0.07 s	Go	2024-01-17 20:20:32
2	Marcus Henrik Simonsen	0.09 s	Go	2025-10-16 08:46:10
3	Faizan Khalid	0.14 s	Go	2022-10-15 16:32:16
4	Norbert Voelker	0.15 s	Go	2022-04-12 17:36:21

#	User	Runtime	Language	Date
1	Hidden user	0.16 s	Haskell	2022-04-30 15:12:24
2	Steinar Simonnes	0.55 s	Haskell	2024-01-15 11:41:02
3	Brent Yorgey	0.56 s	Haskell	2023-03-16 10:45:35
4	Shinji Koshida	0.98 s	Haskell	2024-12-28 15:02:52

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.16 s	Java	2023-03-19 12:08:22
2	Guangyi Zhou	0.18 s	Java	2024-12-30 17:01:18
3	Asmus Tørsleff	0.24 s	Java	2022-08-16 23:38:35
4	Crystal Sharpe	0.27 s	Java	2022-04-15 20:47:18
5	Choo Jun Inn Darren	0.28 s	Java	2024-10-21 14:22:28
6	Lester Lim Jia Jun	0.29 s	Java	2024-10-22 05:44:17
7	Fong Kai Jie	0.31 s	Java	2024-10-21 08:31:54
8	Lim Bingjie James	0.32 s	Java	2024-10-20 19:26:03
9	Lum Yi Ren Johannsen	0.32 s	Java	2024-10-21 08:24:25
10	Tay Kai Jun	0.32 s	Java	2024-10-22 12:59:41

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.33 s	JavaScript (SpiderMonkey)	2022-04-17 03:26:04
2	Jimmy Gustafsson	0.38 s	JavaScript (SpiderMonkey)	2024-07-22 13:11:20
3	Christian Pilegaard Cederquist	0.40 s	JavaScript (SpiderMonkey)	2022-11-13 15:35:28

#	User	Runtime	Language	Date
1	Timothy Gaede	0.68 s	Julia	2024-07-20 08:44:04

#	User	Runtime	Language	Date
1	poppyer	0.76 s	Kotlin	2022-07-02 06:05:16
2	Jesper Bech Christensen	0.98 s	Kotlin	2023-09-26 17:22:47

#	User	Runtime	Language	Date
1	thedvd98	0.58 s	OCaml	2024-07-11 22:18:17

#	User	Runtime	Language	Date
1	Billy James Brightraven	0.16 s	Perl	2024-09-10 18:24:29
2	Linus Nordström	0.16 s	Perl	2024-09-10 18:59:04
3	Saito Ta	0.54 s	Perl	2024-04-08 11:36:20

#	User	Runtime	Language	Date
1	Agis Daniels	0.09 s	Python 2	2022-11-30 14:58:21
2	Yanmarshus Bachtiar	0.10 s	Python 2	2023-02-15 12:34:02

#	User	Runtime	Language	Date
1	Fredrik	0.10 s	Python 3	2024-09-08 14:36:32
2	Björn Romfelt	0.10 s	Python 3	2024-09-10 18:33:21
3	Karin Nordengrim-Avdic	0.10 s	Python 3	2024-09-10 18:38:23
4	Isak Eriksson	0.10 s	Python 3	2024-09-10 19:03:38
5	Petr	0.10 s	Python 3	2024-11-04 18:09:07
6	Jonathan Denning	0.10 s	Python 3	2025-05-01 21:25:10
7	Ocram Esah	0.11 s	Python 3	2022-04-14 18:00:09
8	刘小宝	0.11 s	Python 3	2022-06-09 11:46:44
9	Weiguo Jiang	0.11 s	Python 3	2022-07-19 22:26:54
10	Sacha CERF	0.11 s	Python 3	2022-08-12 11:19:44

#	User	Runtime	Language	Date
1	Thomas Feld	0.22 s	Ruby	2023-02-27 10:29:31
2	Matzuka	0.23 s	Ruby	2025-12-21 20:28:23

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2024-06-02 04:27:10
2	Hidden user	0.02 s	Rust	2024-08-04 18:10:55
3	Egor Kulikov	0.02 s	Rust	2024-11-21 11:57:18
4	Bas Dirks	0.03 s	Rust	2022-04-20 12:32:09
5	Arnav Sastry	0.03 s	Rust	2022-05-09 05:53:00
6	Klas af Geijerstam	0.03 s	Rust	2022-09-10 20:56:13
7	David Rasch	0.03 s	Rust	2022-09-26 09:37:59
8	Johannes Ahnlide	0.03 s	Rust	2023-06-02 15:44:13
9	Artur Khuziakhmetov	0.03 s	Rust	2023-06-05 13:04:00
10	Ethan Woodrum	0.03 s	Rust	2024-03-12 16:58:46

#	User	Runtime	Language	Date
1	Joe Blower	0.04 s	Zig	2025-05-31 19:02:13
2	arthur	0.06 s	Zig	2024-07-17 09:47:02

#	User	Length	Language	Date
1	Chenzhang Hu	552	Bash	2024-04-08 15:03:16

#	User	Length	Language	Date
1	Mirel Cosulschi	1394	C	2025-05-25 09:42:22
2	Ata Kırcadağ	1420	C	2025-05-01 15:05:34
3	Saito Ta	1557	C	2024-04-08 11:13:31
4	Bergur Snorrason	2265	C	2022-07-26 10:46:04
5	ALAM MOHAMMAD SHADAB	3273	C	2024-03-03 16:51:43
6	Hjörtur Björnsson	4866	C	2024-09-03 22:25:43

#	User	Length	Language	Date
1	Ethan Johnson	760	C#	2024-03-06 05:51:46
2	Mateo Fernandez-Tyson	1140	C#	2024-11-18 03:06:50
3	Mikael Fiala-Lundström	2274	C#	2022-05-11 00:02:01
4	Stoffe Malmberg	2954	C#	2022-12-09 15:19:55
5	Benny Antonsson	3192	C#	2022-04-18 19:43:26
6	Andriy Zyevakov	8241	C#	2025-03-15 09:45:40

#	User	Length	Language	Date
1	Frederik Vase	183	C++	2024-06-17 00:24:34
2	Frans Meulenbroeks	230	C++	2025-03-30 23:18:37
3	Artemis Ngoh	352	C++	2022-09-12 14:10:18
4	Hidden user	377	C++	2022-03-30 04:58:33
5	Alin Odobescu	394	C++	2022-08-18 11:55:21
6	Ammar Fathin Sabili	402	C++	2022-03-30 07:23:58
7	Trường Đặng	405	C++	2023-06-12 16:22:00
8	Dmitry Lyubshin	413	C++	2023-03-18 16:35:33
9	Dominic Sagen	414	C++	2023-01-19 03:41:44
10	MIGUEL VIEIRA PEREIRA	419	C++	2023-03-16 18:15:02

#	User	Length	Language	Date
1	Faizan Khalid	648	Go	2022-10-15 16:32:16
2	Norbert Voelker	1173	Go	2022-04-12 17:36:21
3	Marcus Henrik Simonsen	1582	Go	2025-10-16 08:46:10
4	Thomas	1659	Go	2024-01-17 20:30:59

#	User	Length	Language	Date
1	Steinar Simonnes	941	Haskell	2024-01-15 11:45:27
2	Shinji Koshida	1054	Haskell	2024-12-28 15:02:52
3	Hidden user	1973	Haskell	2022-04-29 23:59:12
4	Brent Yorgey	9852	Haskell	2023-03-16 10:45:35

#	User	Length	Language	Date
1	Michael Amundsen	827	Java	2022-11-11 20:51:14
2	Adnane El Hachami	849	Java	2023-09-12 00:44:13
3	HighOnJuice	850	Java	2023-01-16 23:31:25
4	Taylor Wong	851	Java	2023-03-01 03:27:31
5	Eric Leow Yu Quan	885	Java	2022-04-13 02:04:37
6	ABDUL HAKAM BIN NOR RAZAK	951	Java	2024-10-17 09:15:18
7	Justin Zhang	952	Java	2024-01-20 16:30:24
8	Koh Tze Shyan Benjamin	971	Java	2024-10-23 14:13:08
9	Josh Henderson	982	Java	2022-04-16 18:23:18
10	Zach Tschetter	1006	Java	2022-04-20 04:53:03

#	User	Length	Language	Date
1	Jimmy Gustafsson	232	JavaScript (SpiderMonkey)	2024-07-22 13:17:05
2	Christian Pilegaard Cederquist	362	JavaScript (SpiderMonkey)	2022-11-13 15:48:57
3	Bjørn Chr. Soltvedt	581	JavaScript (SpiderMonkey)	2022-04-17 03:26:04

#	User	Length	Language	Date
1	Timothy Gaede	1525	Julia	2024-07-20 08:44:04

#	User	Length	Language	Date
1	poppyer	621	Kotlin	2022-07-02 06:05:16
2	Jesper Bech Christensen	722	Kotlin	2023-09-26 17:22:47

#	User	Length	Language	Date
1	thedvd98	2273	OCaml	2024-07-11 22:18:17

#	User	Length	Language	Date
1	Saito Ta	245	Perl	2024-04-08 11:36:20
2	Linus Nordström	1593	Perl	2024-09-10 18:59:04
3	Billy James Brightraven	3804	Perl	2024-09-10 18:24:29

#	User	Length	Language	Date
1	Agis Daniels	292	Python 2	2022-11-30 14:58:57
2	Yanmarshus Bachtiar	442	Python 2	2023-02-15 12:34:02

#	User	Length	Language	Date
1	Kaaden RumanCam	177	Python 3	2023-01-17 07:41:27
2	Hidden user	199	Python 3	2022-11-01 01:22:46
3	Nguyễn Đinh Hồng Phúc	219	Python 3	2023-11-27 12:24:02
4	Adam Polak	219	Python 3	2025-04-18 16:34:26
5	Oliver Ruste Jahren	220	Python 3	2023-04-02 15:43:05
6	Hu Yijie	225	Python 3	2022-11-12 15:30:53
7	Tom Chauvel	231	Python 3	2024-01-13 17:48:55
8	Hidden user	250	Python 3	2022-03-30 14:00:01
9	Josh Taylor	251	Python 3	2024-06-16 01:35:57
10	Tam Keng Hong	253	Python 3	2024-04-17 19:08:04

#	User	Length	Language	Date
1	Thomas Feld	132	Ruby	2023-02-27 10:46:28
2	Matzuka	199	Ruby	2025-12-21 20:28:23

#	User	Length	Language	Date
1	Artur Khuziakhmetov	509	Rust	2023-06-05 13:13:23
2	David Rasch	745	Rust	2022-09-26 09:37:59
3	Bas Dirks	764	Rust	2022-04-20 12:32:09
4	Ng Tek In	784	Rust	2022-09-16 19:22:13
5	Ethan Woodrum	796	Rust	2024-03-12 16:58:46
6	Andreas Gottschalk Krath	938	Rust	2022-12-21 16:02:43
7	Johannes Ahnlide	1464	Rust	2023-06-02 15:44:13
8	Freak3r	1606	Rust	2025-10-09 11:26:15
9	Hidden user	1735	Rust	2024-08-04 18:10:55
10	Petter Hansson	2370	Rust	2023-09-22 14:53:30

#	User	Length	Language	Date
1	Joe Blower	1916	Zig	2025-05-31 19:02:13
2	arthur	2157	Zig	2024-07-17 09:47:02

Solution running time distribution