Problem A
All about that base — Problem Statistics

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Submissions	4386
Accepted submissions	1755
Submission ratio	40.01%
Authors	1735
Full solves [?]	1479
Full solve Ratio	85.24%

#	User	Runtime	Language	Date
1	Arnar Bjarni Arnarson	0.02 s	C#	2015-10-17 07:06:47
2	Erik Flink	0.02 s	C#	2016-03-24 19:07:24
3	Rail Sabirov	0.02 s	C#	2016-10-11 13:59:45
4	Khin Nyunt	0.02 s	C#	2016-12-29 12:29:57
5	Andreas Nilsson	0.02 s	C#	2017-06-08 11:18:44
6	Valeriy Titov	0.02 s	C#	2017-08-20 12:46:58
7	Mikael Fiala-Lundström	0.03 s	C#	2021-07-18 13:58:46
8	Henrik Ledin	0.04 s	C#	2023-11-23 08:46:39
9	Ilia Volkov	0.05 s	C#	2016-09-17 09:22:38
10	Anthony Willy Algarñaz Bueno	0.05 s	C#	2025-06-26 17:23:00

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2019-07-26 04:08:52
2	Hidden user	0.01 s	Common Lisp	2019-07-29 01:29:40

#	User	Runtime	Language	Date
1	Javier Gómez Díaz	0.00 s	Crystal	2025-11-02 02:09:37

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.05 s	F#	2023-01-31 13:58:52

#	User	Runtime	Language	Date
1	Ainun Nazieb	0.02 s	Go	2020-10-01 04:24:07
2	Norbert Voelker	0.07 s	Go	2021-09-18 00:00:59
3	Anna Winters	0.08 s	Go	2016-10-15 18:56:58
4	Chaitanya Ganesh	0.08 s	Go	2021-02-08 11:26:04
5	Markus Hansson	0.08 s	Go	2021-02-09 12:25:16
6	Johann Yvetot	0.08 s	Go	2021-02-10 14:52:32
7	Ciarán Ó hAoláin	0.09 s	Go	2017-11-01 19:53:14

#	User	Runtime	Language	Date
1	Diego Pedraza	0.00 s	Haskell	2017-04-19 13:59:10
2	Brent Yorgey	0.00 s	Haskell	2017-09-30 16:27:52
3	Elias Riedel Gårding	0.00 s	Haskell	2017-11-19 04:36:52
4	Paul Wild	0.00 s	Haskell	2018-05-05 18:19:25
5	Birk Tjelmeland	0.00 s	Haskell	2018-10-30 17:04:22
6	Hidden user	0.00 s	Haskell	2023-01-10 13:49:42
7	Steinar Simonnes	0.00 s	Haskell	2024-06-27 11:51:57
8	Scott Dauer	0.01 s	Haskell	2022-01-13 20:07:52

#	User	Runtime	Language	Date
1	Nicolás Eduardo Peña Moreno	0.05 s	Java	2015-10-03 18:26:30
2	Petr Ryšavý	0.05 s	Java	2015-10-03 18:54:30
3	Peter Steele	0.05 s	Java	2015-10-03 22:07:16
4	Melanie Kirsche	0.05 s	Java	2015-10-08 00:08:35
5	Mitch Price	0.05 s	Java	2015-10-11 21:19:28
6	Brandon Morris	0.05 s	Java	2015-10-12 13:17:44
7	Jd Dantes	0.05 s	Java	2016-02-27 06:34:14
8	Martijn Muijsers	0.05 s	Java	2016-10-16 17:39:18
9	Kell Skogh	0.05 s	Java	2016-10-30 14:34:01
10	Jordan Cripe	0.05 s	Java	2017-04-08 17:05:47

#	User	Runtime	Language	Date
1	Minh Trang Nguyen	0.04 s	JavaScript (Node.js)	2026-01-09 22:28:58
2	Samuel Högfeldt	0.09 s	JavaScript (Node.js)	2022-07-16 17:20:53
3	Khin Nyunt	0.42 s	JavaScript (Node.js)	2021-08-30 17:49:43

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-05-02 03:26:20
2	Michael Laszlo	0.01 s	JavaScript (SpiderMonkey)	2016-10-12 01:21:47
3	J M	0.01 s	JavaScript (SpiderMonkey)	2016-10-26 20:07:48
4	Zachary DeStefano	0.01 s	JavaScript (SpiderMonkey)	2018-02-07 02:18:28
5	Ernani Cecon	0.01 s	JavaScript (SpiderMonkey)	2018-02-17 20:19:59
6	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-05-03 08:46:52

#	User	Runtime	Language	Date
1	Danny Robinson	0.87 s	Julia	2023-11-19 07:55:54
2	Timothy Gaede	0.91 s	Julia	2024-06-18 15:31:42

#	User	Runtime	Language	Date
1	Jacob Huebner	0.13 s	Kotlin	2022-01-11 09:55:12
2	Hidden user	0.20 s	Kotlin	2017-11-22 11:06:00
3	Jonathan Soo	0.21 s	Kotlin	2019-06-25 06:55:50
4	Isaac Owomugisha	0.21 s	Kotlin	2020-09-06 16:34:22
5	Adam Koprowski	0.25 s	Kotlin	2021-07-05 12:55:33

#	User	Runtime	Language	Date
1	Ryan Jian	0.03 s	Python 2	2015-10-03 18:20:36
2	Ted Ying	0.03 s	Python 2	2015-10-03 18:21:05
3	Steven Timotius	0.03 s	Python 2	2015-10-03 18:23:15
4	Hidden user	0.03 s	Python 2	2015-10-03 18:40:16
5	Calvin Liu	0.03 s	Python 2	2015-10-03 18:48:10
6	Adam Stuart Richardson	0.03 s	Python 2	2015-10-03 19:19:31
7	Hidden user	0.03 s	Python 2	2015-10-03 19:34:06
8	Jerry	0.03 s	Python 2	2015-10-03 19:35:53
9	Animesh Tripathi	0.03 s	Python 2	2015-10-03 19:38:59
10	Jie Liang Lee	0.03 s	Python 2	2015-10-03 19:45:26

#	User	Runtime	Language	Date
1	Charles Zinn	0.02 s	Python 3	2015-10-03 18:10:55
2	Parker Garrison	0.02 s	Python 3	2015-10-03 18:16:24
3	Alex Li	0.02 s	Python 3	2015-10-03 18:27:06
4	Jim Zhang	0.02 s	Python 3	2015-10-03 18:29:02
5	Victor Zheng	0.02 s	Python 3	2015-10-03 19:25:18
6	Stephen Sidwell	0.02 s	Python 3	2015-10-03 19:28:11
7	Fengyang Wang	0.02 s	Python 3	2015-10-03 20:29:03
8	Cade Gillem	0.02 s	Python 3	2015-10-03 20:29:43
9	Timothy Kephart	0.02 s	Python 3	2015-10-03 22:00:13
10	Bo Zhou	0.02 s	Python 3	2016-01-21 22:42:27

#	User	Runtime	Language	Date
1	Naoki Mizuno	0.04 s	Ruby	2016-04-13 04:21:57
2	Johannes Larsson	0.05 s	Ruby	2019-06-06 12:32:30
3	Alexander Bilde Pedersen	0.06 s	Ruby	2023-05-04 23:21:50
4	Thomas Feld	0.06 s	Ruby	2023-05-08 09:48:57

#	User	Runtime	Language	Date
1	Morgan Hopkins	0.00 s	Rust	2019-03-19 03:13:07
2	Robert Janczewski	0.00 s	Rust	2020-02-06 16:43:07
3	Bas Dirks	0.00 s	Rust	2022-01-10 12:56:01
4	David Rasch	0.00 s	Rust	2022-10-31 15:42:55
5	Isak Jägberg	0.00 s	Rust	2023-04-03 14:06:41
6	Daniel Anker Hermansen	0.00 s	Rust	2023-05-25 11:07:35
7	gard heine kalland	0.00 s	Rust	2024-06-17 13:43:45
8	Vincent Lagerros	0.00 s	Rust	2024-07-26 03:13:28
9	Egor Kulikov	0.00 s	Rust	2026-01-20 15:12:28

#	User	Length	Language	Date
1	klimisnotmilk	1615	C	2023-07-10 06:37:08
2	Boris Mulder	1640	C	2016-03-31 17:19:59
3	Grayce Zhu	1717	C	2018-10-05 20:12:24
4	Andree Kaba	1752	C	2018-10-14 03:57:44
5	Ivan Petrov	1949	C	2019-10-08 10:13:19
6	Mikael K Eriksson	2212	C	2021-02-17 14:20:38
7	Sambit Palit	2334	C	2020-11-08 21:38:37
8	Seth Carter	2350	C	2017-11-11 02:50:46
9	Yi Jiang	2380	C	2015-10-03 22:55:23
10	Filip Hovorka	2737	C	2020-12-08 02:16:27

#	User	Length	Language	Date
1	Andreas Nilsson	2774	C#	2017-06-08 11:18:44
2	Valeriy Titov	2939	C#	2017-08-20 12:46:58
3	Arnar Bjarni Arnarson	3098	C#	2015-10-17 07:06:47
4	Mateo Morales Guzman	3136	C#	2025-06-21 00:38:45
5	Rail Sabirov	3153	C#	2016-10-11 13:59:45
6	Henrik Ledin	3259	C#	2023-11-23 08:46:39
7	Anthony Willy Algarñaz Bueno	3902	C#	2025-06-26 17:23:00
8	Erik Flink	3941	C#	2016-03-24 19:07:24
9	Ilia Volkov	4274	C#	2016-09-17 09:22:38
10	Mikael Fiala-Lundström	4846	C#	2021-07-18 13:58:46

#	User	Length	Language	Date
1	Yeung Man Tsung	909	C++	2022-11-30 15:43:57
2	Mathias Gernez	1043	C++	2025-07-26 23:47:39
3	Arjan Cornelissen	1165	C++	2019-12-28 22:29:15
4	Hidden user	1209	C++	2024-10-21 18:21:58
5	Wen Li Looi	1221	C++	2015-10-03 19:00:27
6	Mihai Andreescu	1228	C++	2015-10-03 18:23:54
7	Sean Purcell	1240	C++	2015-10-03 18:55:07
8	Nhi Lưu Yến	1242	C++	2020-06-17 18:00:05
9	Mark Gordon	1249	C++	2015-10-03 21:19:37
10	Neill Johnston	1269	C++	2021-02-06 22:53:39

#	User	Length	Language	Date
1	David Cawthon	1830	Common Lisp	2019-07-26 04:08:52
2	Hidden user	2455	Common Lisp	2019-07-29 01:32:37

#	User	Length	Language	Date
1	Javier Gómez Díaz	687	Crystal	2025-11-02 16:27:29

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	2699	F#	2023-01-31 13:58:52

#	User	Length	Language	Date
1	Ainun Nazieb	1239	Go	2020-10-01 04:24:07
2	Norbert Voelker	2056	Go	2021-09-18 00:00:59
3	Ciarán Ó hAoláin	2058	Go	2017-11-01 19:53:14
4	Johann Yvetot	2915	Go	2021-02-10 14:52:32
5	Markus Hansson	2946	Go	2021-02-09 12:25:16
6	Anna Winters	3124	Go	2016-10-15 18:56:58
7	Chaitanya Ganesh	3882	Go	2021-02-08 11:26:04

#	User	Length	Language	Date
1	Paul Wild	851	Haskell	2018-05-05 18:19:25
2	Brent Yorgey	1117	Haskell	2017-09-30 16:27:52
3	Hidden user	1118	Haskell	2023-01-10 13:49:42
4	Diego Pedraza	1241	Haskell	2017-04-19 13:59:10
5	Birk Tjelmeland	1341	Haskell	2018-10-30 17:04:22
6	Elias Riedel Gårding	1492	Haskell	2017-11-19 04:36:52
7	Steinar Simonnes	1591	Haskell	2024-06-27 11:51:57
8	Scott Dauer	2288	Haskell	2022-01-13 20:07:52

#	User	Length	Language	Date
1	Ryan Hunt	1167	Java	2017-10-01 07:40:16
2	Zhuowei Zhang	1299	Java	2015-10-03 18:38:27
3	Nathan Huckleberry	1300	Java	2017-04-10 00:45:27
4	Thomas Barnette	1320	Java	2018-01-23 00:30:03
5	Harrison Weigel	1368	Java	2015-10-03 18:39:40
6	Mark Meysenburg	1465	Java	2018-04-09 03:37:58
7	Duncan Page	1491	Java	2018-01-22 23:40:52
8	Caeden Whitaker	1554	Java	2020-10-18 03:24:15
9	Brandon Mabey	1561	Java	2015-10-03 18:38:38
10	Hidden user	1570	Java	2020-06-10 18:57:53

#	User	Length	Language	Date
1	Samuel Högfeldt	2592	JavaScript (Node.js)	2022-07-16 17:20:53
2	Khin Nyunt	2940	JavaScript (Node.js)	2021-08-30 17:49:43
3	Minh Trang Nguyen	3027	JavaScript (Node.js)	2026-01-09 22:28:58

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	600	JavaScript (SpiderMonkey)	2023-05-03 08:46:52
2	Bjørn Chr. Soltvedt	888	JavaScript (SpiderMonkey)	2016-05-02 03:26:20
3	J M	1216	JavaScript (SpiderMonkey)	2016-10-26 20:07:48
4	Zachary DeStefano	1222	JavaScript (SpiderMonkey)	2018-02-07 02:18:28
5	Michael Laszlo	2039	JavaScript (SpiderMonkey)	2016-10-12 01:21:47
6	Ernani Cecon	2105	JavaScript (SpiderMonkey)	2018-02-17 20:19:59

#	User	Length	Language	Date
1	Danny Robinson	301	Julia	2023-11-19 07:55:54
2	Timothy Gaede	3392	Julia	2024-06-18 15:31:42

#	User	Length	Language	Date
1	Jacob Huebner	1232	Kotlin	2022-01-11 09:55:12
2	Jonathan Soo	1285	Kotlin	2019-06-25 06:55:50
3	Adam Koprowski	1630	Kotlin	2021-07-05 12:55:33
4	Hidden user	1813	Kotlin	2017-11-22 11:06:00
5	Isaac Owomugisha	2246	Kotlin	2020-09-06 16:34:22

#	User	Length	Language	Date
1	Thomas Feld	466	Python 2	2019-09-05 14:50:12
2	Lim Hong Hui Eugene	569	Python 2	2016-07-15 01:40:07
3	Ted Ying	617	Python 2	2015-10-03 18:21:05
4	Zachariah Goldthorpe	671	Python 2	2017-10-02 21:43:27
5	Ryan Jian	677	Python 2	2015-10-03 18:20:36
6	Asger Hautop Drewsen	720	Python 2	2016-02-13 17:03:56
7	Nico Weber	755	Python 2	2016-10-18 03:09:49
8	Lars Tveito	760	Python 2	2015-10-27 01:46:34
9	Jeff Robertson	774	Python 2	2017-04-29 20:34:49
10	Steven Timotius	842	Python 2	2015-10-03 18:23:15

#	User	Length	Language	Date
1	Kevin Gomez	243	Python 3	2023-07-06 04:37:19
2	Thomas Draper	333	Python 3	2023-03-19 01:39:54
3	Charles Ancheta	455	Python 3	2023-03-16 08:48:32
4	Tran Tuong Minh Nguyen	511	Python 3	2018-10-01 03:25:26
5	Ahmed Chamseddine	520	Python 3	2023-11-08 17:39:26
6	Nino Bašić	541	Python 3	2022-12-06 21:20:59
7	Hidden user	573	Python 3	2021-04-04 14:32:57
8	John Khoo	621	Python 3	2025-04-16 21:20:55
9	Timothy White	622	Python 3	2023-05-29 15:32:37
10	David Loftus	624	Python 3	2019-12-07 23:44:04

#	User	Length	Language	Date
1	Thomas Feld	207	Ruby	2023-05-08 09:55:22
2	Naoki Mizuno	913	Ruby	2016-04-13 04:21:57
3	Johannes Larsson	1284	Ruby	2019-06-06 12:32:30
4	Alexander Bilde Pedersen	1461	Ruby	2023-05-04 23:21:50

#	User	Length	Language	Date
1	David Rasch	1738	Rust	2022-10-31 15:42:55
2	Robert Janczewski	1874	Rust	2020-02-06 16:43:07
3	Bas Dirks	1944	Rust	2022-01-10 12:56:01
4	Morgan Hopkins	2877	Rust	2019-03-19 03:13:07
5	Isak Jägberg	2979	Rust	2023-04-03 14:06:41
6	gard heine kalland	4217	Rust	2024-06-17 13:43:45
7	Vincent Lagerros	6846	Rust	2024-07-26 03:13:28
8	Daniel Anker Hermansen	21632	Rust	2023-05-25 11:07:35
9	Egor Kulikov	27238	Rust	2026-01-20 15:12:28

Solution running time distribution