Problem A
Frosting on the Cake — Problem Statistics

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Submissions	1949
Accepted submissions	714
Submission ratio	36.63%
Authors	706
Full solves [?]	580
Full solve Ratio	82.15%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.01 s	C	2019-06-28 19:59:00
2	Noah Ó Donnaile	0.02 s	C	2018-08-17 15:53:05
3	Hồ Quang Phước	0.02 s	C	2018-09-29 10:49:36
4	Ivan Petrov	0.02 s	C	2019-03-19 14:22:02
5	Sambit Palit	0.02 s	C	2020-12-07 01:31:26
6	Mikolaj Cymcyk	0.02 s	C	2021-01-20 16:22:31
7	Hrafnkell Sigurðarson	0.02 s	C	2021-01-25 18:16:39
8	Pim Heeman	0.02 s	C	2021-05-13 10:58:01
9	pengin	0.02 s	C	2021-08-19 14:35:13
10	Szymon Kucharski	0.02 s	C	2022-12-12 15:49:20

#	User	Runtime	Language	Date
1	Magnus Hovland Hoff	0.08 s	C#	2018-09-19 17:15:39
2	Apurav Khare	0.10 s	C#	2021-11-01 05:07:21

#	User	Runtime	Language	Date
1	traxex	0.00 s	C++	2018-04-23 00:44:02
2	Taulant Arapi	0.00 s	C++	2018-12-14 15:05:22
3	Gabriele Masina	0.00 s	C++	2019-04-17 19:04:12
4	Hidden user	0.00 s	C++	2019-12-27 05:27:46
5	Michael Pfeifer	0.01 s	C++	2018-03-06 04:42:40
6	David Berard	0.01 s	C++	2018-03-29 07:33:44
7	Eduardo Trujillo	0.01 s	C++	2018-04-07 00:14:51
8	Jacky Blois	0.01 s	C++	2018-06-12 10:28:52
9	Olle Eriksson	0.01 s	C++	2018-06-21 00:46:53
10	Saujas Nandi	0.01 s	C++	2018-10-15 08:56:07

#	User	Runtime	Language	Date
1	Ari Páll Agnarsson	0.11 s	Common Lisp	2021-01-24 02:02:18

#	User	Runtime	Language	Date
1	Norbert Voelker	0.09 s	Go	2022-05-18 00:06:36
2	Kristian Gregorius Hustad	0.11 s	Go	2018-08-18 20:14:14
3	Yair Tayb	1.88 s	Go	2020-04-05 18:16:03

#	User	Runtime	Language	Date
1	Joël Schaerer	0.09 s	Haskell	2018-06-14 03:02:32
2	Brent Yorgey	0.14 s	Haskell	2018-06-12 15:44:05
3	Rudy Matela	0.50 s	Haskell	2024-11-20 10:54:34
4	Christian Leipe	0.62 s	Haskell	2019-08-20 12:02:56

#	User	Runtime	Language	Date
1	Ahmad Barhamje	0.10 s	Java	2018-08-22 22:59:55
2	Bjørn Dons	0.10 s	Java	2020-05-22 19:43:47
3	Crystal Sharpe	0.10 s	Java	2020-08-06 18:51:22
4	Åke Wettergren	0.18 s	Java	2018-10-19 13:31:17
5	Terrence Park	0.19 s	Java	2018-02-17 21:35:08
6	Olav Røthe Bakken	0.19 s	Java	2018-03-20 21:22:46
7	Herman Appelgren	0.19 s	Java	2018-07-16 21:53:54
8	Petter Daae	0.19 s	Java	2018-09-19 18:16:33
9	Malte Larsson	0.19 s	Java	2018-10-19 13:29:13
10	Huy Lê Khắc	0.19 s	Java	2018-11-08 02:27:33

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.66 s	JavaScript (SpiderMonkey)	2018-06-17 12:29:03

#	User	Runtime	Language	Date
1	Timothy Gaede	0.60 s	Julia	2025-10-08 14:21:19
2	Carlo Baldassi	0.64 s	Julia	2024-09-25 14:59:20

#	User	Runtime	Language	Date
1	Jacob Huebner	0.25 s	Kotlin	2022-05-03 22:17:54
2	Nicholas Johnson	0.38 s	Kotlin	2022-05-01 20:07:29
3	Sam Keyser	0.38 s	Kotlin	2022-05-05 19:05:01
4	Adam Rankin	0.46 s	Kotlin	2023-09-27 00:35:27

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.37 s	Prolog	2025-02-11 07:01:01

#	User	Runtime	Language	Date
1	Lars Åström	0.05 s	Python 2	2018-10-18 08:37:32
2	Björn Magnusson	0.05 s	Python 2	2018-10-18 14:21:23
3	Måns Magnusson	0.05 s	Python 2	2018-10-18 22:58:49
4	Lingyu Song	0.05 s	Python 2	2018-11-04 06:12:40
5	Jonatan Nilsson	0.05 s	Python 2	2018-12-02 16:55:07
6	Gurpartap Singh Bhatti	0.05 s	Python 2	2019-04-17 03:45:45
7	Maj Stenmark	0.06 s	Python 2	2018-10-19 15:21:45
8	Jesper Öqvist	0.06 s	Python 2	2018-11-09 12:11:29
9	Eoin Davey	0.06 s	Python 2	2018-11-19 20:10:22
10	Asger Hautop Drewsen	0.06 s	Python 2	2018-11-22 17:21:55

#	User	Runtime	Language	Date
1	Anthony Clays	0.06 s	Python 3	2018-12-12 11:10:15
2	Yang Tang	0.06 s	Python 3	2025-03-28 04:48:36
3	Lightbringer	0.06 s	Python 3	2025-04-04 21:54:13
4	Frank	0.06 s	Python 3	2025-04-13 23:29:07
5	Yufan	0.06 s	Python 3	2025-06-01 04:51:14
6	Gerardo Sillas	0.06 s	Python 3	2025-10-24 22:23:51
7	Wayne	0.07 s	Python 3	2018-03-03 11:17:24
8	Xuehui Chen	0.07 s	Python 3	2018-05-13 19:26:05
9	Vincent Tandya	0.07 s	Python 3	2019-01-25 23:05:02
10	Marco Zamboni	0.07 s	Python 3	2019-04-29 14:01:57

#	User	Runtime	Language	Date
1	Thomas Feld	0.15 s	Ruby	2023-08-07 13:36:58

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-09-24 13:24:32
2	Joshua Ji	0.01 s	Rust	2020-11-27 23:12:36
3	Eric Pinter	0.01 s	Rust	2021-10-09 21:31:40
4	Niklas Sandén	0.01 s	Rust	2023-04-01 14:18:38
5	Youmu Chan	0.01 s	Rust	2025-04-01 19:16:30

#	User	Length	Language	Date
1	Teikn Smith	213	C	2023-03-22 23:04:08
2	Pim Heeman	421	C	2021-05-13 10:58:01
3	Hồ Quang Phước	515	C	2018-09-29 10:49:36
4	Mirel Cosulschi	576	C	2025-06-03 14:23:25
5	pengin	629	C	2021-08-19 14:35:13
6	Szymon Kucharski	649	C	2022-12-12 15:49:20
7	Ivan Petrov	722	C	2019-03-19 14:22:02
8	Sambit Palit	742	C	2020-12-07 01:31:26
9	Noah Ó Donnaile	802	C	2018-08-17 15:53:05
10	Karndanai Udosiriphoclsai	883	C	2024-07-25 09:20:47

#	User	Length	Language	Date
1	Magnus Hovland Hoff	931	C#	2018-09-19 17:15:39
2	Apurav Khare	1306	C#	2021-11-01 05:07:21

#	User	Length	Language	Date
1	Teikn Smith	358	C++	2023-03-22 22:18:38
2	Yireh Ban	360	C++	2023-04-29 04:11:16
3	Alessandro Minisini	388	C++	2022-12-03 14:07:54
4	Ale Mini	388	C++	2022-12-03 14:09:26
5	Marcel Wienöbst	390	C++	2020-06-28 11:56:24
6	Michele Ghilardi	396	C++	2021-11-09 11:29:41
7	Frederick Pek	397	C++	2021-05-22 17:58:55
8	Eduardo González	398	C++	2019-03-05 04:49:35
9	Alessandro Colombo	408	C++	2021-01-27 16:27:18
10	Marco Servin	416	C++	2020-07-11 01:19:01

#	User	Length	Language	Date
1	Ari Páll Agnarsson	3360	Common Lisp	2021-01-24 02:02:18

#	User	Length	Language	Date
1	Norbert Voelker	748	Go	2022-05-18 00:06:36
2	Yair Tayb	1069	Go	2020-04-05 18:16:03
3	Kristian Gregorius Hustad	1333	Go	2018-08-18 20:14:14

#	User	Length	Language	Date
1	Christian Leipe	771	Haskell	2019-08-20 12:02:56
2	Joël Schaerer	991	Haskell	2018-06-14 02:52:01
3	Brent Yorgey	1107	Haskell	2018-06-12 15:44:05
4	Rudy Matela	1370	Haskell	2024-11-20 10:54:34

#	User	Length	Language	Date
1	Sam Huynh	523	Java	2021-09-09 11:27:20
2	Justin Kim	549	Java	2023-04-29 05:17:39
3	Eric Williamson	596	Java	2018-02-17 19:35:59
4	Joshua Brucker	597	Java	2019-09-20 22:36:30
5	Stalvio Neto	612	Java	2025-03-09 09:42:46
6	Dev Chheda	614	Java	2018-03-24 16:55:13
7	Andreas Aaboe Andersen	683	Java	2019-03-04 16:37:55
8	Danny Camenisch	690	Java	2021-01-08 19:46:30
9	Matthew Garrison	709	Java	2018-02-17 23:11:25
10	Einar Þór Ívarsson	741	Java	2021-04-26 16:01:59

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	7822	JavaScript (SpiderMonkey)	2018-06-17 12:25:02

#	User	Length	Language	Date
1	Carlo Baldassi	587	Julia	2024-09-25 14:59:20
2	Timothy Gaede	607	Julia	2025-10-08 14:21:19

#	User	Length	Language	Date
1	Nicholas Johnson	536	Kotlin	2022-05-01 20:07:29
2	Sam Keyser	591	Kotlin	2022-05-05 19:05:01
3	Adam Rankin	659	Kotlin	2023-09-27 00:35:27
4	Jacob Huebner	1261	Kotlin	2022-05-03 22:17:54

#	User	Length	Language	Date
1	Andriy Zyevakov	5480	Prolog	2025-02-11 07:01:01

#	User	Length	Language	Date
1	Andreas Björklund	259	Python 2	2018-12-29 12:05:30
2	Jesper Öqvist	294	Python 2	2018-11-09 12:11:29
3	Eoin Davey	300	Python 2	2018-11-19 20:10:22
4	Måns Magnusson	301	Python 2	2018-10-18 22:58:49
5	Oskar Haarklou Veileborg	343	Python 2	2018-12-03 07:49:56
6	Lingyu Song	347	Python 2	2018-11-04 06:12:40
7	Asger Hautop Drewsen	356	Python 2	2018-11-22 17:21:55
8	Lars Åström	441	Python 2	2018-10-18 08:37:32
9	Björn Magnusson	441	Python 2	2018-10-18 14:21:23
10	Jonatan Nilsson	441	Python 2	2018-12-02 16:55:07

#	User	Length	Language	Date
1	Benjamin Z White	166	Python 3	2023-06-08 00:57:06
2	Thomas Draper	180	Python 3	2023-03-24 23:28:16
3	Caleb Dastrup	244	Python 3	2025-01-25 19:54:20
4	Rafael Kristoforus Yanto	250	Python 3	2025-05-09 20:31:27
5	Zsolt Németh	255	Python 3	2025-10-14 00:01:03
6	Hidden user	272	Python 3	2020-11-23 11:52:06
7	Nicolai Robinson	279	Python 3	2023-11-25 16:36:33
8	Ahmed__	280	Python 3	2022-09-13 15:55:04
9	Ahmed Mohammed	280	Python 3	2022-09-13 15:59:40
10	Mees de Vries	284	Python 3	2021-05-12 13:44:36

#	User	Length	Language	Date
1	Thomas Feld	120	Ruby	2023-08-07 13:53:30

#	User	Length	Language	Date
1	Youmu Chan	1146	Rust	2025-04-01 19:16:30
2	Joshua Ji	1190	Rust	2020-11-27 23:12:36
3	Eric Pinter	1452	Rust	2021-10-09 21:31:40
4	Niklas Sandén	26445	Rust	2023-04-01 14:18:38
5	Vincent Lagerros	63386	Rust	2025-09-24 13:24:32

Solution running time distribution