Problem A
Cookie Selection — Problem Statistics

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Submissions	12438
Accepted submissions	3222
Submission ratio	25.90%
Authors	2568
Full solves [?]	1985
Full solve Ratio	77.30%

#	User	Runtime	Language	Date
1	Martin Stensgård	0.06 s	C	2019-05-20 16:47:04
2	Ioannis Br	0.09 s	C	2020-05-07 17:09:03
3	Hidden user	0.10 s	C	2016-05-13 20:59:07
4	Bergur Snorrason	0.12 s	C	2023-02-09 11:01:40
5	Muhammad Irham Rasyidi	0.15 s	C	2017-08-28 07:32:12
6	Dan Rubery	0.18 s	C	2015-04-12 18:47:33
7	Hidden user	0.19 s	C	2017-05-30 12:42:47
8	Rosa Shah	0.27 s	C	2022-10-04 07:17:57
9	Ivan Petrov	0.45 s	C	2019-06-19 11:04:56
10	Mikael K Eriksson	2.88 s	C	2021-02-02 11:29:35

#	User	Runtime	Language	Date
1	Lukasz	0.46 s	C#	2017-02-10 18:33:11
2	Łukasz Organiściak	0.47 s	C#	2017-02-10 18:29:29
3	Henrik Hallbert	0.84 s	C#	2019-10-31 15:32:46
4	Андрей Титов	1.10 s	C#	2015-12-28 08:31:52
5	Donald Heppner	1.12 s	C#	2017-02-14 02:56:58
6	Tommy Ivarsson	1.13 s	C#	2015-04-20 23:47:04
7	Brian Cobb	1.13 s	C#	2016-03-11 00:17:09
8	suthirikhit	1.13 s	C#	2016-05-28 06:03:32
9	Robert Åhs	1.34 s	C#	2013-10-01 11:52:19
10	Hakan Yurt	1.51 s	C#	2023-03-21 14:02:29

#	User	Runtime	Language	Date
1	Paul Khadim	0.07 s	C++	2014-10-09 10:17:12
2	Martin Stensgård	0.08 s	C++	2016-04-19 04:42:04
3	Bùi Văn Mệnh	0.08 s	C++	2016-06-28 09:02:39
4	Eyleifur Bjarkason	0.08 s	C++	2019-02-17 00:08:55
5	Constantijn Dekker	0.08 s	C++	2021-05-13 14:07:47
6	Fredrik Altenstedt	0.09 s	C++	2015-04-19 22:15:55
7	Bergur Snorrason	0.09 s	C++	2023-02-09 14:38:25
8	Levi Richards	0.09 s	C++	2024-09-09 08:23:17
9	Ammar Fathin Sabili	0.10 s	C++	2015-05-17 19:34:08
10	Garðar Ingvarsson	0.10 s	C++	2019-03-07 23:13:08

#	User	Runtime	Language	Date
1	Norbert Voelker	0.50 s	Go	2023-05-22 17:56:37
2	Nathan Lee	0.59 s	Go	2025-09-11 23:10:17
3	Wédney Yuri	0.98 s	Go	2018-01-06 19:39:01
4	Pablo	1.11 s	Go	2017-04-23 15:49:02
5	Pavel Birukov	1.41 s	Go	2019-09-02 15:39:42
6	Việt Hà Nguyễn	1.60 s	Go	2016-06-26 08:05:09

#	User	Runtime	Language	Date
1	David Spies	0.74 s	Haskell	2014-11-29 19:47:04
2	Zach Tschetter	2.20 s	Haskell	2023-07-14 01:12:47

#	User	Runtime	Language	Date
1	Joachim Borup	0.56 s	Java	2021-03-03 00:42:28
2	Adrian Borup	0.57 s	Java	2021-03-03 21:02:26
3	Jamie Kihira	0.59 s	Java	2021-11-25 23:29:49
4	Samuel Klingström	0.62 s	Java	2017-07-02 21:56:30
5	Jon Pavelich	0.63 s	Java	2018-01-15 05:05:42
6	Chen Shenghao	0.66 s	Java	2019-09-05 15:31:44
7	Darko Aleksic	0.67 s	Java	2020-03-21 09:30:55
8	Hans Gylling	0.68 s	Java	2013-10-08 18:30:57
9	Louiz Kim-Chan	0.68 s	Java	2018-03-23 02:32:07
10	Raffles Andrison	0.69 s	Java	2018-11-13 17:10:41

#	User	Runtime	Language	Date
1	Diego Oliveira	0.51 s	JavaScript (SpiderMonkey)	2017-10-29 05:19:54
2	Christian Pilegaard Cederquist	1.42 s	JavaScript (SpiderMonkey)	2023-06-18 01:00:03

#	User	Runtime	Language	Date
1	Benjamin Laurence Erickson	0.75 s	Kotlin	2018-07-24 18:02:59
2	Jacob Huebner	0.82 s	Kotlin	2020-05-14 10:40:40
3	Hidden user	0.95 s	Kotlin	2020-01-16 10:15:06
4	Chelsea Hoernemann	2.30 s	Kotlin	2022-10-14 17:06:35
5	Adam Koprowski	2.33 s	Kotlin	2020-09-09 23:51:12
6	Phường Lên	2.40 s	Kotlin	2020-01-15 22:35:53

#	User	Runtime	Language	Date
1	hz	0.83 s	PHP	2026-02-06 16:18:27

#	User	Runtime	Language	Date
1	Ben Williams	0.42 s	Python 2	2017-08-24 22:47:03
2	Pakorn Ueareeworakul	0.46 s	Python 2	2018-01-25 10:27:05
3	Troels Bjerre Lund	0.46 s	Python 2	2019-02-21 22:58:38
4	Paweł Widera	0.47 s	Python 2	2013-10-04 01:34:54
5	Long Qian	0.48 s	Python 2	2017-06-08 12:14:49
6	Henrik Adolfsson	0.53 s	Python 2	2017-11-08 20:57:11
7	Michael Laszlo	0.56 s	Python 2	2017-12-28 04:54:20
8	Björn Magnusson	0.58 s	Python 2	2021-10-07 12:40:22
9	Martin Stensgård	0.59 s	Python 2	2016-03-17 21:10:26
10	Tomas Hallenberg	0.60 s	Python 2	2017-07-05 21:27:38

#	User	Runtime	Language	Date
1	Avery	0.38 s	Python 3	2025-08-13 03:16:20
2	Laith Bohsali	0.39 s	Python 3	2025-01-24 23:34:18
3	Jon Arnar	0.40 s	Python 3	2024-08-30 16:47:55
4	Hilmir Þór Sifjarson Petersen	0.41 s	Python 3	2022-04-27 14:19:34
5	Svavar Bjarki Bjarnason	0.42 s	Python 3	2024-08-30 17:08:54
6	Ram Basnet	0.43 s	Python 3	2023-12-10 21:52:26
7	Corey Chrudimsky	0.43 s	Python 3	2025-01-25 20:03:38
8	Hidden user	0.43 s	Python 3	2025-02-02 00:22:16
9	Paul Swingle	0.44 s	Python 3	2023-06-02 05:41:24
10	Tam Keng Hong	0.45 s	Python 3	2022-12-01 18:22:16

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.05 s	Rust	2025-05-09 21:09:07
2	Mathias Svensson	0.07 s	Rust	2019-11-02 09:26:56
3	Constantijn Dekker	0.08 s	Rust	2021-05-13 14:24:10
4	Egor Kulikov	0.08 s	Rust	2025-01-10 22:30:47
5	Joe Blower	0.15 s	Rust	2025-09-07 18:08:25
6	Aaron Lengyel	0.16 s	Rust	2022-10-01 09:12:39
7	Þorvaldur Tumi Baldursson	0.43 s	Rust	2023-02-14 22:05:38
8	Artur Khuziakhmetov	0.44 s	Rust	2025-03-06 10:52:08
9	Hidden user	0.49 s	Rust	2024-12-26 05:24:02
10	Daniel Anker Hermansen	0.50 s	Rust	2024-10-03 20:32:46

#	User	Length	Language	Date
1	Dan Rubery	1414	C	2015-04-12 18:47:33
2	Martin Stensgård	2177	C	2016-11-11 03:00:29
3	Muhammad Irham Rasyidi	2308	C	2018-01-25 03:30:01
4	Ioannis Br	3102	C	2020-05-07 17:05:36
5	Bergur Snorrason	3550	C	2023-02-09 11:04:01
6	Hidden user	3637	C	2017-05-30 12:42:47
7	Hidden user	4970	C	2016-05-13 08:12:05
8	Ivan Petrov	5370	C	2019-06-19 11:04:56
9	Rosa Shah	5492	C	2022-10-04 07:17:57
10	Mikael K Eriksson	9381	C	2021-02-02 11:29:35

#	User	Length	Language	Date
1	Hüseyin Ege Gökcan	1546	C#	2023-03-21 13:32:53
2	Björn Gunnarsson	4061	C#	2016-09-18 20:45:48
3	Þorgeir Auðunn Karlsson	4061	C#	2016-09-18 20:49:43
4	Tommy Ivarsson	4573	C#	2015-04-20 23:30:26
5	Brian Cobb	4829	C#	2016-03-11 00:17:09
6	Hakan Yurt	4831	C#	2023-03-21 14:02:29
7	suthirikhit	4841	C#	2016-05-28 06:03:32
8	Андрей Титов	5705	C#	2015-12-28 08:31:52
9	Oliver Zhu	6661	C#	2017-11-15 20:08:20
10	Robert Åhs	7679	C#	2013-10-01 11:52:19

#	User	Length	Language	Date
1	Mathias Gernez	362	C++	2023-08-31 18:20:20
2	Markus Mathiasen	408	C++	2021-10-21 17:14:16
3	Elvar Árni Bjarnason	431	C++	2023-09-27 20:53:17
4	Hidden user	434	C++	2023-09-25 11:32:52
5	Matias Nova Baza	463	C++	2024-01-04 05:31:18
6	Tay Jiun Yuan	483	C++	2022-10-22 12:04:10
7	Jun Yan	502	C++	2024-08-05 06:42:43
8	Roger Chen	509	C++	2021-08-15 23:23:55
9	Ow Yong Jin Xuan	510	C++	2022-10-27 05:25:35
10	Rezwan Arefin	511	C++	2022-01-15 18:42:38

#	User	Length	Language	Date
1	Pavel Birukov	1200	Go	2019-09-02 15:39:42
2	Pablo	1265	Go	2017-04-24 10:47:56
3	Nathan Lee	2088	Go	2025-09-11 23:10:17
4	Việt Hà Nguyễn	2793	Go	2016-06-26 08:05:09
5	Wédney Yuri	3475	Go	2018-01-06 19:39:01
6	Norbert Voelker	28679	Go	2023-05-22 17:56:37

#	User	Length	Language	Date
1	Zach Tschetter	638	Haskell	2023-07-14 01:12:47
2	David Spies	2056	Haskell	2014-11-26 20:00:07

#	User	Length	Language	Date
1	Nick Buelich	714	Java	2015-04-15 20:01:42
2	Sam Huynh	747	Java	2021-02-20 06:51:28
3	Kurtis Van Gent	749	Java	2016-03-23 17:27:59
4	Duncan Page	756	Java	2019-09-10 00:28:37
5	Hidden user	772	Java	2015-12-08 04:46:23
6	Andy Phan	774	Java	2019-01-05 21:10:05
7	Benjamin Laurence Erickson	776	Java	2016-03-30 19:30:31
8	Jamie Kihira	776	Java	2018-01-12 20:00:19
9	Abdelrahman Mokbel	782	Java	2022-10-03 03:45:08
10	Dan Rubery	806	Java	2015-04-12 06:37:06

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	3054	JavaScript (SpiderMonkey)	2023-06-18 01:00:03
2	Diego Oliveira	4918	JavaScript (SpiderMonkey)	2017-10-29 05:25:01

#	User	Length	Language	Date
1	Jacob Huebner	642	Kotlin	2020-05-14 10:40:40
2	Benjamin Laurence Erickson	889	Kotlin	2018-07-24 18:02:59
3	Chelsea Hoernemann	1078	Kotlin	2022-10-14 17:06:35
4	Hidden user	2041	Kotlin	2020-01-16 10:15:06
5	Phường Lên	3315	Kotlin	2020-01-15 22:35:53
6	Adam Koprowski	6743	Kotlin	2020-09-09 23:51:12

#	User	Length	Language	Date
1	hz	2224	PHP	2026-02-06 16:18:27

#	User	Length	Language	Date
1	Martin Vonheim Larsen	407	Python 2	2013-09-30 22:16:45
2	Michael Laszlo	545	Python 2	2017-12-27 18:26:34
3	Troels Bjerre Lund	545	Python 2	2019-02-21 22:58:38
4	Andreas Björklund	624	Python 2	2019-05-05 20:14:03
5	Hidden user	660	Python 2	2017-05-25 22:53:59
6	Ben Williams	668	Python 2	2017-08-24 22:47:03
7	Tomas Hallenberg	675	Python 2	2017-07-05 21:17:03
8	Maj Stenmark	686	Python 2	2018-08-12 17:21:40
9	Hidden user	736	Python 2	2019-07-12 23:20:44
10	Henrik Adolfsson	865	Python 2	2017-11-08 20:57:11

#	User	Length	Language	Date
1	Thomas Feld	137	Python 3	2025-11-04 15:02:27
2	Avery	141	Python 3	2025-08-13 03:30:49
3	Benjamin Z White	206	Python 3	2023-04-06 17:56:18
4	Dante Bencivenga	294	Python 3	2022-10-04 01:14:59
5	Ahmed Chamseddine	297	Python 3	2023-11-20 22:40:30
6	Paul Swingle	300	Python 3	2023-06-02 05:41:24
7	Peter Stauder	312	Python 3	2023-05-31 21:30:44
8	Clement Oh	384	Python 3	2023-07-19 13:13:03
9	Hrant Hovhannisyan	458	Python 3	2026-01-20 10:22:10
10	Hidden user	471	Python 3	2014-10-13 16:29:57

#	User	Length	Language	Date
1	Artur Khuziakhmetov	896	Rust	2025-03-06 10:52:08
2	Constantijn Dekker	1277	Rust	2021-05-13 13:54:31
3	Mathias Svensson	1334	Rust	2019-11-02 09:26:56
4	Þorvaldur Tumi Baldursson	1414	Rust	2023-07-10 14:16:25
5	Hidden user	1924	Rust	2024-12-26 05:24:02
6	Vincent Lagerros	3421	Rust	2024-06-02 17:34:11
7	Aaron Lengyel	6958	Rust	2022-10-01 09:12:39
8	Joe Blower	9995	Rust	2025-09-07 18:08:25
9	Egor Kulikov	17742	Rust	2025-01-10 22:30:47
10	Daniel Anker Hermansen	28499	Rust	2024-10-03 20:32:46

Solution running time distribution