Problem U
Adding Words — Problem Statistics

Back to problem description

Submissions	28395
Accepted submissions	6648
Submission ratio	23.41%
Authors	6082
Full solves [?]	4781
Full solve Ratio	78.61%

#	User	Runtime	Language	Date
1	Greens Parker	0.02 s	C#	2017-06-22 00:35:55
2	Hidden user	0.03 s	C#	2015-12-04 23:35:10
3	Joseph Dukes	0.03 s	C#	2016-02-27 19:35:46
4	Jakob Botsch Nielsen	0.03 s	C#	2016-10-11 00:43:42
5	Eva Debenjak	0.03 s	C#	2016-11-27 15:15:55
6	Klas af Geijerstam	0.03 s	C#	2016-12-06 10:07:28
7	Andreas Nilsson	0.03 s	C#	2017-06-09 16:23:28
8	Ingemar Hansson	0.03 s	C#	2017-07-03 01:09:08
9	Tommaso Bianchi	0.03 s	C#	2017-08-31 19:29:32
10	Håkan Sjöström	0.03 s	C#	2017-09-28 08:31:18

#	User	Runtime	Language	Date
1	John Bob	0.02 s	Common Lisp	2025-05-27 22:01:41
2	David Cawthon	0.23 s	Common Lisp	2019-04-14 18:35:34

#	User	Runtime	Language	Date
1	Hidden user	0.06 s	F#	2022-07-22 20:11:23
2	Hjalte Sorgenfrei Mac Dalland	0.07 s	F#	2021-02-04 12:33:39
3	Anders B. Clausen	0.07 s	F#	2021-11-28 21:02:09
4	Morten Clausen	0.11 s	F#	2020-07-31 19:39:32
5	Jacob Harris Cryer Kragh	0.11 s	F#	2023-06-24 21:30:42

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Go	2023-11-04 09:54:25
2	Hidden user	0.01 s	Go	2023-11-04 09:54:40
3	Hidden user	0.01 s	Go	2023-11-04 21:13:02
4	Pandhu Hutomo Aditya	0.01 s	Go	2023-11-06 14:58:29
5	Husain Satan	0.01 s	Go	2023-11-06 17:26:55
6	Muhammad Abdis	0.01 s	Go	2023-11-08 10:55:56
7	João Moraes	0.01 s	Go	2023-11-21 08:38:36
8	Thomas	0.01 s	Go	2024-01-15 20:48:56
9	Joe Little	0.01 s	Go	2024-10-08 22:20:03
10	Logan Travis	0.01 s	Go	2025-09-10 05:07:51

#	User	Runtime	Language	Date
1	Wilfried van Asten	0.01 s	Haskell	2015-12-30 09:01:46
2	Jan Hrček	0.01 s	Haskell	2021-04-07 09:03:58
3	Caleb Surovik	0.01 s	Haskell	2021-11-07 19:32:27
4	Md Akif Chowdhury	0.01 s	Haskell	2022-09-17 21:54:10
5	Fumiaki Takagi	0.01 s	Haskell	2023-02-08 05:40:51
6	Steinar Simonnes	0.01 s	Haskell	2025-07-19 17:31:01
7	Jesper Amilon	0.02 s	Haskell	2020-02-26 10:26:34
8	Juan Miguel Vilar	0.02 s	Haskell	2020-11-11 22:08:10
9	Brent Yorgey	0.03 s	Haskell	2017-10-04 17:47:56
10	Vasiliy Kevroletin	0.03 s	Haskell	2018-05-17 02:10:28

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.09 s	Java	2023-12-26 22:06:44
2	Julian Santiago Tauta Chaparro	0.11 s	Java	2017-08-31 15:45:25
3	Leon Wang	0.11 s	Java	2024-09-01 02:22:44
4	Martin Wiberg Petersen	0.12 s	Java	2016-05-01 17:37:37
5	Abedalmjeed Abu-Taleb	0.12 s	Java	2016-07-28 13:10:29
6	Martijn Muijsers	0.12 s	Java	2016-10-26 20:11:42
7	Luis Miguel Paz Velasquez	0.12 s	Java	2017-08-16 23:48:42
8	Ivan Dario	0.12 s	Java	2017-08-25 22:46:25
9	Khánh Nguyễn Tiến	0.12 s	Java	2018-07-26 17:27:44
10	Nguyễn Hùng Cường	0.12 s	Java	2018-09-28 04:36:01

#	User	Runtime	Language	Date
1	Namgay Dema	0.05 s	JavaScript (Node.js)	2024-11-15 09:21:48
2	andreas	0.08 s	JavaScript (Node.js)	2018-09-15 02:29:02
3	Jerry Hu	0.08 s	JavaScript (Node.js)	2019-02-05 15:27:22
4	Hidden user	0.08 s	JavaScript (Node.js)	2019-05-29 20:11:28
5	Ram Basnet	0.09 s	JavaScript (Node.js)	2018-09-27 15:43:34
6	James Carl Necio	0.09 s	JavaScript (Node.js)	2019-04-15 11:09:48
7	Hidden user	0.10 s	JavaScript (Node.js)	2018-12-25 07:28:47
8	Georgios Goussis	0.11 s	JavaScript (Node.js)	2022-07-12 23:52:25
9	Filip Sanderfelt	0.11 s	JavaScript (Node.js)	2023-02-05 15:46:43
10	Jackson Benete	0.12 s	JavaScript (Node.js)	2021-07-02 20:24:13

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-05-01 14:12:57
2	Ionel Hindorean	0.02 s	JavaScript (SpiderMonkey)	2017-07-18 14:32:59
3	Aishni Shrivastava	0.02 s	JavaScript (SpiderMonkey)	2018-05-18 18:59:59
4	Peter Kedemo	0.03 s	JavaScript (SpiderMonkey)	2016-04-13 22:31:29
5	Cole Rauh	0.03 s	JavaScript (SpiderMonkey)	2016-10-15 23:59:32
6	Graham Fairweather	0.03 s	JavaScript (SpiderMonkey)	2017-10-07 01:15:43
7	Carl Thomé	0.04 s	JavaScript (SpiderMonkey)	2016-04-24 20:21:32
8	Maciej Kus	0.04 s	JavaScript (SpiderMonkey)	2017-01-11 01:58:13
9	Kārlis Gaņģis	0.04 s	JavaScript (SpiderMonkey)	2019-08-27 15:25:14
10	Hidden user	0.05 s	JavaScript (SpiderMonkey)	2021-01-22 17:16:51

#	User	Runtime	Language	Date
1	Hidden user	0.60 s	Julia	2025-02-28 19:17:51
2	Joe Blower	0.92 s	Julia	2025-06-01 22:30:19

#	User	Runtime	Language	Date
1	Thanh Le	0.24 s	Kotlin	2021-07-26 23:02:55
2	Johnny Baloney	0.24 s	Kotlin	2022-01-16 20:19:35
3	Björn Holm	0.25 s	Kotlin	2019-04-29 15:11:45
4	Sam Keyser	0.27 s	Kotlin	2022-09-17 17:18:26
5	Tim Meredith	0.31 s	Kotlin	2021-05-05 05:26:55
6	Sakthivel S	0.33 s	Kotlin	2022-09-28 07:42:59
7	Hidden user	0.34 s	Kotlin	2023-06-10 13:18:27
8	Adam Koprowski	0.35 s	Kotlin	2020-08-30 11:03:27
9	Simon Lixenfeld	0.37 s	Kotlin	2021-06-11 00:57:04
10	Adam Rankin	0.37 s	Kotlin	2023-09-24 06:00:23

#	User	Runtime	Language	Date
1	Caleb Austin	0.01 s	Lua	2024-09-27 22:43:56
2	Peter Hairatidis	0.02 s	Lua	2024-09-24 23:48:20

#	User	Runtime	Language	Date
1	Shiroy Sattur	0.02 s	Nim	2025-10-15 17:28:10

#	User	Runtime	Language	Date
1	Junyu Zhan	0.00 s	Odin	2026-01-20 16:38:15

#	User	Runtime	Language	Date
1	Javier Gómez Díaz	0.01 s	Perl	2024-07-24 22:07:12

#	User	Runtime	Language	Date
1	Steven D. Wilson	0.01 s	PHP	2016-03-29 03:40:10
2	Peter Härder	0.01 s	PHP	2016-12-15 08:31:47
3	Silvena Lam	0.01 s	PHP	2018-03-06 11:56:33
4	Jonas Lindenskov Nielsen	0.02 s	PHP	2019-11-12 09:18:28
5	Quinn Friebe	0.02 s	PHP	2021-01-14 02:18:42
6	Saginaw George	0.02 s	PHP	2021-01-17 13:36:39
7	Testing	0.02 s	PHP	2022-01-11 16:17:05

#	User	Runtime	Language	Date
1	Adriaan de Vries	0.12 s	Prolog	2020-02-12 18:01:36

#	User	Runtime	Language	Date
1	Abdul Zakkar	0.04 s	Python 2	2017-08-25 07:23:27
2	Johan Nilsson	0.05 s	Python 2	2015-10-04 21:35:29
3	Patrik Lilja	0.05 s	Python 2	2015-10-10 12:08:08
4	Tore Norderud	0.05 s	Python 2	2015-11-11 19:06:22
5	Arne Tobias Malkenes Ødegaard	0.05 s	Python 2	2015-12-11 22:20:11
6	David Wetterau	0.05 s	Python 2	2016-02-16 01:27:18
7	Frederik Højholt	0.05 s	Python 2	2016-07-06 16:07:58
8	Jonathan Balls	0.05 s	Python 2	2016-10-07 03:51:36
9	Kyle Verhoog	0.05 s	Python 2	2016-10-18 07:13:46
10	Noah Ó Donnaile	0.05 s	Python 2	2016-12-21 15:52:50

#	User	Runtime	Language	Date
1	Mikael Hedin	0.02 s	Python 3	2016-11-25 09:48:21
2	Ram Basnet	0.02 s	Python 3	2017-01-05 06:09:15
3	Agis Daniels	0.02 s	Python 3	2017-02-04 04:28:00
4	Sergey Dulevich	0.02 s	Python 3	2017-03-12 11:51:07
5	Donald Heppner	0.02 s	Python 3	2017-03-13 02:49:47
6	Øyvind Haarberg	0.02 s	Python 3	2017-04-09 01:33:11
7	Allan Lago	0.02 s	Python 3	2017-05-16 13:00:03
8	Arnav Sastry	0.02 s	Python 3	2017-05-22 00:52:17
9	Sebastian Fredriksson Bernholtz	0.02 s	Python 3	2017-05-22 12:24:08
10	Ionel Hindorean	0.02 s	Python 3	2017-07-17 14:58:43

#	User	Runtime	Language	Date
1	Gerry Hall	0.05 s	Ruby	2016-03-18 03:14:53
2	Hidden user	0.05 s	Ruby	2019-02-16 22:57:06
3	Casper Christensen	0.06 s	Ruby	2016-01-08 11:50:00
4	Lee Tze Han	0.06 s	Ruby	2018-06-18 14:21:16
5	Prakash Sanyasi	0.06 s	Ruby	2021-11-30 22:11:43
6	Alghi Fariansyah	0.07 s	Ruby	2020-10-30 08:12:44
7	apt	0.07 s	Ruby	2021-11-11 15:17:21
8	Thomas Feld	0.08 s	Ruby	2023-05-08 09:17:03

#	User	Runtime	Language	Date
1	Joe Blower	0.00 s	Zig	2025-06-01 23:27:04

#	User	Length	Language	Date
1	Seth Carter	1558	C	2017-11-16 14:06:13
2	Warren Mazmur	1843	C	2019-09-20 15:56:22
3	Anton Lyxell	2203	C	2016-02-09 16:42:32
4	Scott Dauer	2219	C	2019-11-11 20:32:45
5	Mattias Andrée	2250	C	2018-05-02 20:21:31
6	Alex Van Keulen	2530	C	2018-01-24 22:15:45
7	Akemi Izuko	2568	C	2022-09-01 06:41:32
8	Greg Gorlen	2940	C	2022-09-20 21:03:09
9	Mirel Cosulschi	2985	C	2023-11-23 22:02:07
10	Andrew Jones	3206	C	2022-01-01 00:57:35

#	User	Length	Language	Date
1	Hidden user	1067	C#	2015-12-04 23:35:10
2	Esty Crow	1386	C#	2023-07-15 05:02:09
3	Anthony Ye	1483	C#	2023-07-16 18:28:53
4	Andreas Nilsson	1486	C#	2017-06-09 16:23:28
5	Fredrik Widén	1669	C#	2023-11-29 14:55:35
6	Ekaterina Tcareva	1773	C#	2025-05-09 12:53:47
7	Nathan Andrews	1831	C#	2024-09-27 23:52:44
8	Håkan Sjöström	1841	C#	2017-09-28 08:31:18
9	Henrik Andersson	1866	C#	2018-11-04 00:07:51
10	Klas af Geijerstam	1925	C#	2016-12-06 18:21:33

#	User	Length	Language	Date
1	Bianca Vicente	423	C++	2024-01-05 17:42:25
2	Jasmine Lea	425	C++	2023-04-24 04:30:51
3	Hidden user	729	C++	2022-04-17 11:12:41
4	David Wärn	743	C++	2015-08-25 14:11:09
5	Herman Karlsson	750	C++	2015-08-25 14:19:56
6	Daner Mendoza	759	C++	2023-04-12 20:24:14
7	Elias Lolck	809	C++	2024-02-19 21:49:00
8	Roger Chen	818	C++	2021-08-12 03:17:02
9	Valeriu Motroi	891	C++	2016-04-26 11:00:51
10	Markus Mathiasen	891	C++	2021-10-10 17:50:35

#	User	Length	Language	Date
1	David Cawthon	3216	Common Lisp	2019-04-14 18:35:34
2	John Bob	4872	Common Lisp	2025-05-27 22:27:02

#	User	Length	Language	Date
1	Hidden user	1433	F#	2022-07-22 22:37:40
2	Anders B. Clausen	1727	F#	2021-11-28 21:02:09
3	Hjalte Sorgenfrei Mac Dalland	1751	F#	2021-02-04 12:34:10
4	Morten Clausen	2301	F#	2020-07-31 19:39:32
5	Jacob Harris Cryer Kragh	3917	F#	2023-06-24 21:30:42

#	User	Length	Language	Date
1	Krzysztof Gibuła	1042	Go	2019-03-16 12:18:35
2	Muhammad Abdis	1151	Go	2023-11-08 10:55:56
3	Vegard Itland	1239	Go	2016-10-15 19:31:08
4	Hidden user	1304	Go	2023-11-04 21:13:02
5	Nathan Lee	1329	Go	2025-10-02 00:00:01
6	Shiliang Tong	1356	Go	2022-09-11 21:44:13
7	Wojtek Bednarzak	1395	Go	2018-05-03 02:37:27
8	Johann Yvetot	1414	Go	2021-02-23 11:30:48
9	Hidden user	1420	Go	2023-11-07 02:19:25
10	Joe Little	1420	Go	2024-10-08 22:20:03

#	User	Length	Language	Date
1	Hidden user	1091	Haskell	2021-05-08 15:17:03
2	Jesper Amilon	1145	Haskell	2020-02-26 10:26:34
3	Øyvind Almli	1222	Haskell	2021-05-23 23:51:56
4	Zach Tschetter	1403	Haskell	2021-11-03 00:15:08
5	Brent Yorgey	1627	Haskell	2017-10-04 17:47:56
6	Steinar Simonnes	1683	Haskell	2025-07-19 17:31:01
7	Vasiliy Kevroletin	1752	Haskell	2018-05-17 02:10:28
8	Caleb Surovik	1789	Haskell	2021-11-07 19:32:27
9	Noble Mushtak	1818	Haskell	2020-01-18 00:34:47
10	Antony Lee	1828	Haskell	2019-05-25 22:33:54

#	User	Length	Language	Date
1	Doug Goodman	1071	Java	2016-09-17 17:02:37
2	Jordan Lamkin	1074	Java	2017-02-03 17:02:39
3	Kurtis Van Gent	1142	Java	2016-03-30 18:04:37
4	Erin Anne Day	1161	Java	2018-10-01 19:55:33
5	David Joy	1187	Java	2020-02-07 18:35:12
6	Ryan Hunt	1188	Java	2017-09-25 00:12:00
7	Hidden user	1205	Java	2023-05-05 04:11:54
8	Raymond Arrington	1210	Java	2024-06-17 07:58:00
9	Michael Liu	1259	Java	2018-07-02 04:36:02
10	Thore Husfeldt	1274	Java	2020-03-13 09:14:01

#	User	Length	Language	Date
1	Mathias Magnusson	947	JavaScript (Node.js)	2018-11-24 22:57:36
2	Belal Abou-Dabous	980	JavaScript (Node.js)	2021-05-15 11:29:02
3	Hidden user	986	JavaScript (Node.js)	2018-12-25 07:28:47
4	Paulius Jasėnas	1243	JavaScript (Node.js)	2020-04-11 22:22:16
5	Luis Enrique Tinoco Hernández	1257	JavaScript (Node.js)	2023-03-06 07:53:43
6	Hidden user	1279	JavaScript (Node.js)	2022-04-21 12:24:11
7	Benjamin Juul Jensen	1293	JavaScript (Node.js)	2022-01-06 22:15:08
8	Samuel Högfeldt	1300	JavaScript (Node.js)	2022-07-06 12:02:27
9	Filip Sanderfelt	1316	JavaScript (Node.js)	2023-02-05 15:46:43
10	Jerry Hu	1352	JavaScript (Node.js)	2019-02-05 15:27:22

#	User	Length	Language	Date
1	Peter Kedemo	662	JavaScript (SpiderMonkey)	2016-04-13 22:31:29
2	Carl Thomé	845	JavaScript (SpiderMonkey)	2016-04-24 20:21:32
3	Maciej Kus	852	JavaScript (SpiderMonkey)	2017-01-11 01:58:13
4	Bjørn Chr. Soltvedt	872	JavaScript (SpiderMonkey)	2016-05-01 14:12:57
5	Andrea Bianchessi	921	JavaScript (SpiderMonkey)	2019-10-03 17:09:20
6	Christian Pilegaard Cederquist	1009	JavaScript (SpiderMonkey)	2023-02-05 09:58:40
7	Kārlis Gaņģis	1114	JavaScript (SpiderMonkey)	2019-08-27 15:25:14
8	Graham Fairweather	1253	JavaScript (SpiderMonkey)	2017-10-07 01:15:43
9	Ionel Hindorean	1386	JavaScript (SpiderMonkey)	2017-07-18 14:55:47
10	Hidden user	1388	JavaScript (SpiderMonkey)	2021-01-22 17:16:51

#	User	Length	Language	Date
1	Hidden user	893	Julia	2025-02-28 19:17:51
2	Joe Blower	1366	Julia	2025-06-01 22:31:15

#	User	Length	Language	Date
1	Hidden user	745	Kotlin	2023-06-10 13:18:27
2	Adam Koprowski	1010	Kotlin	2020-08-30 11:03:27
3	Phường Lên	1026	Kotlin	2020-04-21 05:12:42
4	Tim Meredith	1052	Kotlin	2021-05-05 05:26:55
5	Chris Johnson	1168	Kotlin	2023-09-26 00:04:22
6	Chelsea Hoernemann	1252	Kotlin	2022-10-27 20:59:17
7	Johnny Baloney	1308	Kotlin	2022-01-16 20:13:48
8	Simon Lixenfeld	1427	Kotlin	2021-06-11 10:19:35
9	Adam Rankin	1508	Kotlin	2023-09-24 06:00:23
10	Dmitry Shostak	1524	Kotlin	2019-08-30 17:54:14

#	User	Length	Language	Date
1	Peter Hairatidis	951	Lua	2024-09-24 23:48:20
2	Caleb Austin	2325	Lua	2024-09-27 22:43:56

#	User	Length	Language	Date
1	Shiroy Sattur	1056	Nim	2025-10-15 17:28:10

#	User	Length	Language	Date
1	Junyu Zhan	1439	Odin	2026-01-20 16:38:15

#	User	Length	Language	Date
1	Javier Gómez Díaz	379	Perl	2024-07-24 22:29:33

#	User	Length	Language	Date
1	Steven D. Wilson	848	PHP	2016-03-29 03:40:10
2	Jonas Lindenskov Nielsen	1316	PHP	2019-11-12 09:26:59
3	Silvena Lam	1472	PHP	2018-03-06 12:19:12
4	Quinn Friebe	1491	PHP	2021-01-14 02:18:42
5	Saginaw George	1508	PHP	2021-01-17 13:36:39
6	Peter Härder	1522	PHP	2016-12-15 08:31:47
7	Testing	4314	PHP	2022-01-17 08:39:03

#	User	Length	Language	Date
1	Adriaan de Vries	2316	Prolog	2020-02-12 18:01:36

#	User	Length	Language	Date
1	Thomas Feld	359	Python 2	2019-08-16 15:14:03
2	Jesper Öqvist	638	Python 2	2018-10-17 14:47:49
3	Andreas Eisele	642	Python 2	2018-09-09 18:16:15
4	Andreas Björklund	642	Python 2	2019-05-21 18:36:49
5	Neal Zane	647	Python 2	2015-12-05 23:50:27
6	Vifill Sverrisson	648	Python 2	2018-03-12 22:36:25
7	Lars Tveito	650	Python 2	2015-10-26 16:55:14
8	Hidden user	703	Python 2	2018-11-19 16:53:20
9	Love Brandefelt	703	Python 2	2019-04-09 14:24:23
10	Hidden user	731	Python 2	2019-02-02 02:04:16

#	User	Length	Language	Date
1	Avery	187	Python 3	2025-08-05 03:25:34
2	Kevin Gomez	192	Python 3	2024-03-22 04:42:52
3	Lawry Sorenson	219	Python 3	2025-06-24 19:53:57
4	David Aldenbro	286	Python 3	2025-10-20 17:24:03
5	Charles Ancheta	334	Python 3	2023-03-24 08:48:00
6	Alexander Kravberg	356	Python 3	2023-02-15 02:22:09
7	Adil Rasiyani	381	Python 3	2023-02-24 09:43:09
8	Alex Lewin	386	Python 3	2023-03-07 20:42:00
9	Benjamin Z White	387	Python 3	2023-04-02 11:42:44
10	Farzam Abrishami	394	Python 3	2023-06-21 20:04:09

#	User	Length	Language	Date
1	Thomas Feld	195	Ruby	2023-05-08 09:21:01
2	Casper Christensen	460	Ruby	2016-01-08 11:50:00
3	Prakash Sanyasi	619	Ruby	2021-11-30 22:11:43
4	apt	621	Ruby	2021-11-11 15:17:21
5	Lee Tze Han	633	Ruby	2018-06-18 14:21:16
6	Hidden user	673	Ruby	2019-02-16 22:57:06
7	Gerry Hall	927	Ruby	2016-03-18 03:14:53
8	Alghi Fariansyah	1093	Ruby	2020-10-30 08:12:44

#	User	Length	Language	Date
1	Artur Khuziakhmetov	1276	Rust	2025-01-18 10:03:32
2	David Rasch	1314	Rust	2021-05-11 17:28:40
3	Hidden user	1660	Rust	2023-06-21 23:35:04
4	Chaoyi Yin	1677	Rust	2019-01-13 21:39:43
5	Leonard Pauli	1718	Rust	2020-11-20 17:36:35
6	Florent Haratyk	1878	Rust	2019-05-08 03:12:30
7	Daniel Tottie	1902	Rust	2021-11-23 19:57:25
8	Simon Hallefält	1951	Rust	2023-07-13 22:05:44
9	Raphaël Gauthier	1952	Rust	2021-01-23 17:11:44
10	Hidden user	1955	Rust	2024-12-26 09:05:23

#	User	Length	Language	Date
1	Joe Blower	3093	Zig	2025-06-01 23:27:04

Solution running time distribution