Problem A
Shiritori — Problem Statistics

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Submissions	6505
Accepted submissions	2508
Submission ratio	38.55%
Authors	1907
Full solves [?]	1661
Full solve Ratio	87.10%

#	User	Runtime	Language	Date
1	Anton Siderud	0.04 s	C	2023-01-16 18:11:48
2	Mavelasse Cebola	0.06 s	C	2025-09-05 14:23:49
3	Jauhar Arifin	0.07 s	C	2023-11-01 01:32:37
4	Omar	0.07 s	C	2024-01-30 23:29:12
5	Luca van Wijngaarden	0.07 s	C	2024-10-16 15:31:25
6	Brenda Anderson	0.08 s	C	2024-08-03 10:20:18
7	Bergur Snorrason	0.09 s	C	2018-11-27 18:03:07
8	Luca van Wijngaarden	0.09 s	C	2025-06-30 17:21:31
9	Payam Mesgari	0.10 s	C	2025-07-02 19:23:58
10	Anton Brondz	0.11 s	C	2022-01-07 15:52:47

#	User	Runtime	Language	Date
1	traxex	0.11 s	C#	2024-05-06 15:45:19
2	Umar Rasyid	0.11 s	C#	2025-05-20 03:10:32
3	Tom Ilestrand	0.12 s	C#	2019-02-20 13:49:29
4	Romario HUAMANI PACCAYA	0.12 s	C#	2024-09-22 04:48:01
5	Aman Choudhary	0.13 s	C#	2024-05-01 17:20:21
6	Denys Vega	0.17 s	C#	2021-04-17 03:14:42
7	Göran Andersson	0.19 s	C#	2022-06-12 12:27:53
8	Jan Matthiessen	0.20 s	C#	2020-07-26 18:30:57
9	Mikael Fiala-Lundström	0.20 s	C#	2021-07-02 17:58:49
10	Ali Aliev	0.20 s	C#	2022-01-06 19:21:36

#	User	Runtime	Language	Date
1	Øyvind Almli	0.03 s	C++	2022-08-10 20:55:33
2	Hidden user	0.05 s	C++	2018-11-17 15:51:45
3	Chan Zhi Zheng Amos	0.05 s	C++	2019-03-15 13:48:13
4	Hidden user	0.05 s	C++	2019-10-20 13:52:27
5	Agis Daniels	0.05 s	C++	2020-02-21 23:57:24
6	Hidden user	0.05 s	C++	2020-10-02 07:30:02
7	Leszek Hanusiak	0.05 s	C++	2022-11-11 15:48:38
8	Dali Guerfali	0.05 s	C++	2024-02-08 22:47:06
9	ROBERTO-FLORENTIN BUZATU	0.05 s	C++	2025-12-01 20:27:08
10	Dmitry Lyubshin	0.06 s	C++	2018-10-22 22:28:44

#	User	Runtime	Language	Date
1	Hidden user	0.19 s	Common Lisp	2019-06-17 20:54:51
2	Anton Kindestam	0.67 s	Common Lisp	2024-08-13 13:24:35

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.33 s	F#	2023-01-29 19:55:49

#	User	Runtime	Language	Date
1	Pandhu Hutomo Aditya	0.05 s	Go	2023-10-28 10:16:54
2	Hidden user	0.05 s	Go	2023-10-29 06:10:49
3	Hidden user	0.05 s	Go	2023-10-29 06:11:26
4	Charlie Lukman	0.05 s	Go	2023-10-30 05:41:04
5	Hidden user	0.05 s	Go	2023-10-30 14:30:43
6	Muhammad Abdis	0.05 s	Go	2023-11-01 07:13:17
7	Dharma Saputra	0.05 s	Go	2023-11-01 13:39:26
8	Fikri Alwan Ramadhan	0.05 s	Go	2023-12-21 15:29:57
9	Nugra Zurus	0.05 s	Go	2023-12-27 05:05:28
10	Joshua Silva	0.05 s	Go	2024-09-18 03:11:44

#	User	Runtime	Language	Date
1	Hidden user	0.17 s	Haskell	2022-07-28 15:04:46
2	Øyvind Almli	0.21 s	Haskell	2022-03-13 18:17:20
3	Steinar Simonnes	0.21 s	Haskell	2024-05-11 16:56:13
4	Hidden user	0.27 s	Haskell	2021-11-13 09:58:14
5	Mason Barnhill	0.36 s	Haskell	2023-05-27 05:51:39
6	Qi Ji	1.80 s	Haskell	2019-02-23 18:15:47

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.15 s	Java	2022-03-26 16:34:26
2	Samuel Klingström	0.21 s	Java	2018-12-08 23:20:57
3	Shakeel Samsudeen	0.23 s	Java	2018-11-22 04:21:49
4	Vinh Nguyễn Quang	0.24 s	Java	2018-10-23 04:19:01
5	David Mellin	0.27 s	Java	2018-10-24 14:19:27
6	Khánh Nguyễn Tiến	0.28 s	Java	2018-10-23 03:46:51
7	Nam Phan Thành	0.28 s	Java	2018-10-23 06:44:23
8	Nguyễn Mạnh Phúc	0.28 s	Java	2018-10-24 15:00:04
9	Brent Yorgey	0.28 s	Java	2018-10-25 11:10:41
10	Liam Keliher	0.28 s	Java	2019-11-07 02:31:57

#	User	Runtime	Language	Date
1	Arthur Olga	0.20 s	JavaScript (Node.js)	2025-05-16 13:02:03
2	Laisa das Neves Costa	0.20 s	JavaScript (Node.js)	2025-05-16 14:24:57
3	Mas Eka Setiawan	0.21 s	JavaScript (Node.js)	2023-10-28 16:31:49
4	Juthi Sarker Aka	0.21 s	JavaScript (Node.js)	2024-05-04 10:45:27
5	Antonio Luiz Weingartner Junior	0.21 s	JavaScript (Node.js)	2025-05-16 12:37:27
6	Pedro Hiro Sato	0.21 s	JavaScript (Node.js)	2025-05-16 13:36:02
7	Marlon Dener	0.21 s	JavaScript (Node.js)	2025-05-16 14:35:34
8	Nicolas Guadagno	0.25 s	JavaScript (Node.js)	2025-05-16 12:40:33
9	Gian Ortiz	0.29 s	JavaScript (Node.js)	2025-05-16 12:29:37
10	João Benevides	0.29 s	JavaScript (Node.js)	2025-05-16 14:12:56

#	User	Runtime	Language	Date
1	Benjamin Eli van Rhee	0.20 s	JavaScript (SpiderMonkey)	2024-10-01 04:23:18
2	Christian Pilegaard Cederquist	0.21 s	JavaScript (SpiderMonkey)	2023-03-25 14:13:59
3	Bjørn Chr. Soltvedt	0.31 s	JavaScript (SpiderMonkey)	2018-10-24 22:22:52

#	User	Runtime	Language	Date
1	Hidden user	0.34 s	Julia	2025-04-13 08:51:17
2	Timothy Gaede	0.54 s	Julia	2024-04-23 19:02:38
3	Danny Robinson	0.56 s	Julia	2023-09-07 19:02:55

#	User	Runtime	Language	Date
1	Adam Koprowski	0.37 s	Kotlin	2020-08-29 20:58:28
2	Johnny Baloney	0.37 s	Kotlin	2022-01-15 19:27:53
3	Jacob Huebner	0.39 s	Kotlin	2020-04-19 05:14:54
4	James WIlliams	0.39 s	Kotlin	2020-12-24 08:22:24
5	Hidden user	0.40 s	Kotlin	2020-02-20 09:17:59
6	Adam Rankin	0.67 s	Kotlin	2023-09-11 03:38:44
7	Zaw Myat	0.68 s	Kotlin	2024-01-26 08:45:05
8	Aniket Kumar	0.72 s	Kotlin	2024-05-01 14:04:22
9	Marit van Dijk	0.74 s	Kotlin	2019-02-05 20:03:44
10	Matthew Lutze	0.76 s	Kotlin	2019-09-30 00:21:08

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.13 s	Pascal	2018-12-10 19:35:25

#	User	Runtime	Language	Date
1	Manvi Savani	0.06 s	PHP	2024-05-02 13:25:07

#	User	Runtime	Language	Date
1	Ciara Godwin	0.08 s	Python 2	2018-10-26 19:44:23
2	Hermon Mulat	0.08 s	Python 2	2019-02-05 03:29:32
3	Thomas Vu	0.08 s	Python 2	2019-03-06 00:26:06
4	Frederik Haagensen	0.08 s	Python 2	2019-03-08 08:25:07
5	Jesper Öqvist	0.10 s	Python 2	2018-10-22 23:12:31
6	Aarav Singh	0.10 s	Python 2	2018-10-24 02:41:29
7	Jesse Raphael	0.10 s	Python 2	2018-11-12 15:48:15
8	Johann Ly	0.10 s	Python 2	2018-12-01 06:15:16
9	Maj Stenmark	0.10 s	Python 2	2018-12-02 19:43:07
10	Godmar Back	0.10 s	Python 2	2019-01-01 02:16:29

#	User	Runtime	Language	Date
1	Ram Basnet	0.08 s	Python 3	2018-11-02 04:48:35
2	Thomas Vu	0.08 s	Python 3	2019-03-06 00:12:52
3	Duane Littleton	0.09 s	Python 3	2019-04-26 16:25:44
4	Joshua Coward	0.10 s	Python 3	2019-11-13 01:06:24
5	Petr	0.10 s	Python 3	2024-12-16 07:16:48
6	Kasra Ghodsi	0.11 s	Python 3	2018-10-26 00:07:06
7	Marcel Rød	0.11 s	Python 3	2019-07-24 16:54:55
8	Enzio Kam Hai Hong	0.11 s	Python 3	2019-07-27 07:54:53
9	Firman Syah	0.11 s	Python 3	2024-12-02 12:58:00
10	Nicholas Russell Saerang	0.11 s	Python 3	2025-03-09 13:07:28

#	User	Runtime	Language	Date
1	Hidden user	0.17 s	Ruby	2019-11-14 22:03:20
2	Macdara mac an tSionnaigh	0.18 s	Ruby	2019-11-02 19:11:03
3	Miorel Palii	0.19 s	Ruby	2018-11-03 23:59:43
4	Thomas Feld	0.20 s	Ruby	2023-05-25 10:32:11

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2025-06-01 23:30:08
2	Hidden user	0.05 s	Rust	2022-07-12 11:28:21
3	Nugra Zurus	0.05 s	Rust	2023-12-27 05:39:13
4	Anton Kindestam	0.05 s	Rust	2024-08-13 13:21:04
5	Eric Pinter	0.06 s	Rust	2020-07-30 05:00:42
6	David Rasch	0.06 s	Rust	2020-09-14 08:53:43
7	Bas Dirks	0.06 s	Rust	2022-01-19 09:25:01
8	David Zacek	0.06 s	Rust	2022-02-12 17:22:25
9	Reis Faar	0.06 s	Rust	2023-09-26 05:53:16
10	poppyer	0.07 s	Rust	2022-03-14 03:05:29

#	User	Length	Language	Date
1	Paxton DeWitt	1296	C	2023-11-22 04:31:45
2	Mavelasse Cebola	1339	C	2025-09-05 14:22:04
3	shiming Li	1343	C	2023-11-20 21:33:41
4	Dina Kazzoun	1387	C	2023-11-16 18:28:09
5	Xander Levine	1426	C	2023-11-18 21:31:13
6	Luca van Wijngaarden	1743	C	2025-06-30 17:21:31
7	Luca van Wijngaarden	1757	C	2024-10-16 15:55:40
8	Felipe Min	1798	C	2023-11-21 23:39:00
9	Jordi Maldonado	1903	C	2023-11-21 21:29:46
10	Ben Huynh	1903	C	2023-11-22 04:41:34

#	User	Length	Language	Date
1	traxex	428	C#	2024-05-06 15:45:19
2	Göran Andersson	827	C#	2022-06-12 12:27:53
3	Ali Aliev	849	C#	2022-01-06 19:37:25
4	Jon Skranes	888	C#	2022-01-06 23:51:14
5	Denys Vega	926	C#	2021-04-17 03:23:34
6	Logan Christopher	946	C#	2022-09-07 02:21:13
7	Tom Ilestrand	1050	C#	2019-04-12 08:33:36
8	Frankie Chen	1096	C#	2019-07-10 15:34:27
9	Umar Rasyid	1163	C#	2025-05-20 03:10:32
10	Romario HUAMANI PACCAYA	1215	C#	2024-09-22 04:48:01

#	User	Length	Language	Date
1	Jesper Bech Christensen	234	C++	2022-09-08 12:24:57
2	Hidden user	364	C++	2020-03-15 23:23:37
3	Zane Yu	367	C++	2019-01-15 13:53:57
4	Mohsen Mahroos	377	C++	2023-04-19 20:43:39
5	Anna Roczek	378	C++	2023-07-28 09:54:53
6	Mustefa Kamil	387	C++	2020-12-25 17:31:43
7	Mathias Gernez	388	C++	2023-02-23 13:13:34
8	Jun Yan	394	C++	2024-08-02 02:06:25
9	Hidden user	406	C++	2019-01-03 14:23:30
10	Amine Amllal	408	C++	2023-12-07 11:23:55

#	User	Length	Language	Date
1	Hidden user	546	Common Lisp	2019-06-14 02:59:22
2	Anton Kindestam	741	Common Lisp	2019-06-14 07:10:13

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	750	F#	2023-01-29 19:53:58

#	User	Length	Language	Date
1	Norbert Voelker	594	Go	2021-08-25 10:45:49
2	Joshua Silva	605	Go	2024-09-18 03:11:44
3	Charlie Lukman	606	Go	2023-10-30 05:41:04
4	Dharma Saputra	608	Go	2023-11-01 13:39:26
5	Muhammad Abdis	611	Go	2023-11-01 07:13:17
6	Hidden user	643	Go	2023-10-29 06:10:49
7	Hidden user	643	Go	2023-10-29 06:11:26
8	Farid Widyatama	671	Go	2023-10-30 01:38:52
9	Pandhu Hutomo Aditya	787	Go	2023-10-28 10:16:54
10	Ade Hendra	788	Go	2023-10-30 10:52:51

#	User	Length	Language	Date
1	Qi Ji	524	Haskell	2019-02-23 18:19:45
2	Øyvind Almli	596	Haskell	2023-07-12 11:16:39
3	Mason Barnhill	700	Haskell	2023-05-27 05:51:39
4	Hidden user	785	Haskell	2021-11-13 09:58:14
5	Steinar Simonnes	832	Haskell	2024-05-11 16:56:13
6	Hidden user	1016	Haskell	2022-07-28 15:28:21

#	User	Length	Language	Date
1	Sam Huynh	515	Java	2021-10-13 04:49:42
2	Daniel Sutantyo	634	Java	2021-10-15 06:13:13
3	Doug Goodman	643	Java	2019-09-14 18:42:45
4	David Mellin	654	Java	2018-10-24 14:08:38
5	Marshall D Feng	675	Java	2022-03-20 00:34:50
6	Emilie Hyslop	683	Java	2021-10-15 06:07:59
7	Jolyn Tan	686	Java	2020-05-04 15:11:59
8	Markus Bao	693	Java	2024-01-08 01:11:42
9	Yuki Okamoto	703	Java	2022-11-15 22:58:08
10	Rf Schmiermann	706	Java	2019-09-07 15:45:09

#	User	Length	Language	Date
1	Quinn Flavel	442	JavaScript (Node.js)	2020-11-13 00:00:28
2	Laisa das Neves Costa	667	JavaScript (Node.js)	2025-05-16 14:25:45
3	João Benevides	773	JavaScript (Node.js)	2025-05-16 14:12:56
4	Paulo Uilian	821	JavaScript (Node.js)	2025-05-16 13:06:40
5	Pedro Hiro Sato	864	JavaScript (Node.js)	2025-05-16 13:36:02
6	Ster Sar	889	JavaScript (Node.js)	2023-04-28 09:09:41
7	Nicolas Guadagno	953	JavaScript (Node.js)	2025-05-16 12:40:33
8	Peter Kedemo	986	JavaScript (Node.js)	2019-12-29 23:01:16
9	Mas Eka Setiawan	1047	JavaScript (Node.js)	2023-10-28 16:31:49
10	Oliver Bredenberg	1066	JavaScript (Node.js)	2019-09-02 12:43:40

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	340	JavaScript (SpiderMonkey)	2018-10-24 22:22:52
2	Christian Pilegaard Cederquist	482	JavaScript (SpiderMonkey)	2023-03-25 14:13:59
3	Benjamin Eli van Rhee	1235	JavaScript (SpiderMonkey)	2024-10-01 04:23:18

#	User	Length	Language	Date
1	Danny Robinson	160	Julia	2023-09-07 19:02:55
2	Hidden user	183	Julia	2025-04-13 08:51:17
3	Timothy Gaede	586	Julia	2024-04-23 19:02:38

#	User	Length	Language	Date
1	Phường Lên	456	Kotlin	2020-02-21 05:06:43
2	Adam Rankin	520	Kotlin	2023-09-11 03:38:44
3	Jacob Huebner	605	Kotlin	2020-04-19 05:14:54
4	Marit van Dijk	608	Kotlin	2019-02-05 20:03:44
5	Aniket Kumar	659	Kotlin	2024-05-01 14:04:22
6	Matthew Lutze	712	Kotlin	2019-09-30 00:21:08
7	Adam Koprowski	781	Kotlin	2020-08-29 20:58:28
8	Johnny Baloney	816	Kotlin	2022-01-15 19:27:53
9	Hidden user	961	Kotlin	2020-02-20 09:17:59
10	Thanh Le	1171	Kotlin	2020-09-21 04:46:16

#	User	Length	Language	Date
1	Ingemar Ragnemalm	9123	Pascal	2018-12-10 19:35:25

#	User	Length	Language	Date
1	Manvi Savani	1322	PHP	2024-05-02 13:25:07

#	User	Length	Language	Date
1	Thomas Feld	214	Python 2	2019-11-11 13:33:28
2	Andreas Björklund	258	Python 2	2019-10-10 17:29:37
3	Johan Lyts	282	Python 2	2019-07-18 19:51:03
4	Jesper Öqvist	293	Python 2	2018-10-22 23:12:31
5	Lars Åström	294	Python 2	2020-03-12 12:53:29
6	Maj Stenmark	321	Python 2	2018-12-02 19:43:07
7	Aryan Rezanejad	331	Python 2	2019-08-31 13:01:33
8	Hidden user	338	Python 2	2019-08-01 16:39:10
9	Jesse Raphael	358	Python 2	2018-11-12 15:48:15
10	Godmar Back	365	Python 2	2019-01-01 02:16:29

#	User	Length	Language	Date
1	Avery	151	Python 3	2025-08-04 01:33:41
2	Guk Yi Siong	158	Python 3	2023-08-11 12:09:59
3	Lee Isaac	166	Python 3	2023-05-28 05:36:21
4	Yong Mao	177	Python 3	2023-05-25 02:10:22
5	Ahmed Chamseddine	179	Python 3	2024-09-23 08:52:59
6	a_b__c	196	Python 3	2021-01-08 08:55:00
7	Thibault Raffaillac	204	Python 3	2020-02-26 21:36:38
8	Farzam Abrishami	212	Python 3	2024-02-02 21:45:41
9	Tai Tze Kin	213	Python 3	2024-05-03 20:54:55
10	Eren Saglam	219	Python 3	2021-11-06 00:34:47

#	User	Length	Language	Date
1	Thomas Feld	96	Ruby	2023-05-25 10:45:48
2	Hidden user	371	Ruby	2019-10-31 14:37:07
3	Miorel Palii	378	Ruby	2018-11-03 23:59:43
4	Macdara mac an tSionnaigh	415	Ruby	2019-11-02 19:11:03

#	User	Length	Language	Date
1	Bas Dirks	618	Rust	2022-01-19 09:25:01
2	Simon Hallefält	738	Rust	2023-09-09 11:52:24
3	Reis Faar	809	Rust	2023-09-26 05:53:16
4	David Zacek	876	Rust	2022-02-12 17:22:25
5	poppyer	941	Rust	2022-03-14 03:05:29
6	David Rasch	955	Rust	2020-09-14 08:53:43
7	Anton Kindestam	999	Rust	2024-08-13 13:44:50
8	Nugra Zurus	1097	Rust	2023-12-27 05:14:47
9	Hidden user	1212	Rust	2022-07-12 11:28:21
10	Hidden user	1217	Rust	2025-03-08 22:13:14

Solution running time distribution