Problem A
Army Strength (Easy) — Problem Statistics

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Submissions	6386
Accepted submissions	3069
Submission ratio	48.06%
Authors	2917
Full solves [?]	2619
Full solve Ratio	89.78%

#	User	Runtime	Language	Date
1	Joe Amenta	0.01 s	C#	2018-05-14 00:44:38
2	Paweł Janiszewski	0.02 s	C#	2013-10-10 20:07:20
3	Timur Fayzrakhmanov	0.02 s	C#	2014-07-08 14:45:25
4	Ayk Stepanyan	0.02 s	C#	2014-10-18 15:38:02
5	masosz	0.02 s	C#	2015-02-03 19:15:48
6	Paulo Bu	0.02 s	C#	2015-02-04 22:55:27
7	Bas te Kolste	0.02 s	C#	2015-06-15 22:27:51
8	Niklas Huss	0.02 s	C#	2015-08-14 11:12:26
9	Jonas S	0.02 s	C#	2015-08-23 17:09:05
10	Robert Low	0.02 s	C#	2016-07-22 00:34:39

#	User	Runtime	Language	Date
1	David Cawthon	0.02 s	Common Lisp	2020-09-13 05:29:55

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	F#	2021-07-05 22:29:39
2	Jacob Harris Cryer Kragh	0.06 s	F#	2022-12-26 09:31:15
3	Elias Smedegaard	0.07 s	F#	2023-11-18 15:33:20

#	User	Runtime	Language	Date
1	Akhikumar Indurti	0.02 s	Go	2018-09-20 01:53:48
2	Eric Martin	0.02 s	Go	2019-01-01 13:39:13
3	Krzysztof Gibuła	0.07 s	Go	2019-02-25 20:16:32
4	Hidden user	0.09 s	Go	2018-05-03 00:19:37
5	Jonas Hedin	0.12 s	Go	2015-02-26 18:03:40

#	User	Runtime	Language	Date
1	Wilfried van Asten	0.00 s	Haskell	2015-12-21 16:32:55
2	Zach Tschetter	0.00 s	Haskell	2021-04-17 01:44:13
3	Vicky Nguyen	0.00 s	Haskell	2022-08-20 07:05:15
4	Steinar Simonnes	0.00 s	Haskell	2024-02-12 16:16:01
5	Nic M	0.00 s	Haskell	2025-07-03 02:06:31
6	Oskar Segersvärd	0.01 s	Haskell	2014-10-08 22:27:34
7	Hidden user	0.01 s	Haskell	2015-02-06 13:53:10
8	Markus Läll	0.01 s	Haskell	2015-02-11 23:22:12
9	Johan Meier	0.01 s	Haskell	2016-12-05 01:32:50
10	Blake Hyde	0.01 s	Haskell	2017-01-27 20:49:44

#	User	Runtime	Language	Date
1	Jan Štola	0.05 s	Java	2015-03-16 22:31:06
2	Lee Wei Hong	0.05 s	Java	2016-01-22 02:46:59
3	John Kevin Tjahjadi	0.05 s	Java	2016-04-01 03:22:45
4	William Fiset	0.05 s	Java	2016-07-11 00:39:42
5	Jerome Riceboy Roy Adviento	0.05 s	Java	2017-01-29 06:46:59
6	Aked Hindi	0.06 s	Java	2013-02-05 16:13:13
7	Marco Vincenzo Karaan	0.06 s	Java	2015-09-21 09:45:49
8	Sam Tan	0.06 s	Java	2015-12-10 17:18:43
9	Van Nguyen	0.06 s	Java	2016-02-10 07:52:02
10	Trần Công Duy	0.06 s	Java	2016-07-28 16:12:22

#	User	Runtime	Language	Date
1	Stian	0.04 s	JavaScript (Node.js)	2024-06-18 13:56:06
2	Aldo Luna Bueno	0.05 s	JavaScript (Node.js)	2024-11-15 20:32:15
3	Oliver Bredenberg	0.41 s	JavaScript (Node.js)	2019-08-29 09:32:02
4	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2021-03-21 19:47:56
5	Mikael Fiala-Lundström	0.42 s	JavaScript (Node.js)	2021-06-21 17:51:09

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2015-12-21 00:06:45
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-01-19 23:02:02
3	Hà Minh Ngọc	0.01 s	JavaScript (SpiderMonkey)	2016-07-26 14:43:30
4	Hidden user	0.01 s	JavaScript (SpiderMonkey)	2016-07-27 09:08:26
5	Magnar Myrtveit	0.01 s	JavaScript (SpiderMonkey)	2016-12-26 20:33:32
6	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-08-27 23:55:47
7	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-02-05 09:08:01
8	Nicklas Utgaard	0.03 s	JavaScript (SpiderMonkey)	2023-12-02 19:39:07

#	User	Runtime	Language	Date
1	Timothy Gaede	0.58 s	Julia	2024-07-03 04:08:45
2	Noszály Csaba	0.66 s	Julia	2025-04-08 22:29:24

#	User	Runtime	Language	Date
1	Jacob Huebner	0.12 s	Kotlin	2021-06-03 00:24:49
2	Adam Rankin	0.21 s	Kotlin	2023-05-10 03:40:00
3	Neil Harmon	0.26 s	Kotlin	2019-10-17 10:47:46
4	Troy Warmboe	0.27 s	Kotlin	2020-02-05 22:23:04
5	Dmitry Shostak	0.28 s	Kotlin	2019-09-23 07:08:35
6	Garrison Hatcher	0.29 s	Kotlin	2019-11-08 20:41:40

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2017-08-17 09:53:40
2	Magnus Ragnemalm	0.00 s	Pascal	2017-11-29 12:18:33

#	User	Runtime	Language	Date
1	Silvena Lam	0.01 s	PHP	2016-06-06 16:27:27
2	陳建宏	0.01 s	PHP	2021-06-25 17:53:06

#	User	Runtime	Language	Date
1	Jonas Nockert	0.02 s	Prolog	2016-10-09 15:53:02

#	User	Runtime	Language	Date
1	John Stäck	0.03 s	Python 2	2013-10-05 21:24:51
2	Ehsan Kia	0.03 s	Python 2	2014-04-25 22:56:45
3	Klas Björkqvist	0.03 s	Python 2	2014-07-19 17:29:46
4	Gustaf Waldemarson	0.03 s	Python 2	2014-08-12 18:27:23
5	Hidden user	0.03 s	Python 2	2015-02-15 21:24:56
6	Kristmundur Agust	0.03 s	Python 2	2015-03-02 21:45:15
7	Christofer Ohlsson	0.03 s	Python 2	2015-03-26 21:36:31
8	Team Baud	0.03 s	Python 2	2015-04-16 09:21:30
9	Dino Uman	0.03 s	Python 2	2015-09-27 19:35:07
10	Johan Nilsson	0.03 s	Python 2	2015-09-30 22:37:37

#	User	Runtime	Language	Date
1	Shiqi Xiao	0.02 s	Python 3	2014-10-03 22:45:16
2	Changyu Bi	0.02 s	Python 3	2014-10-10 21:56:22
3	Xincheng Zhang	0.02 s	Python 3	2014-10-10 22:06:30
4	Martin Stensgård	0.02 s	Python 3	2015-03-05 22:55:24
5	James Elías Sigurðarson	0.02 s	Python 3	2015-06-13 21:01:29
6	Johannes Agestam	0.02 s	Python 3	2015-06-15 18:24:21
7	John William O'Rourke	0.02 s	Python 3	2015-09-20 19:22:25
8	曾威凱	0.02 s	Python 3	2015-10-10 17:32:23
9	Emil Riis Hansen	0.02 s	Python 3	2015-10-31 20:32:02
10	Hidden user	0.02 s	Python 3	2015-11-28 01:12:20

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2016-01-24 17:07:50
2	Shayon Mukherjee	0.03 s	Ruby	2016-03-08 04:47:57
3	Lasse Berglund	0.03 s	Ruby	2016-04-01 14:52:45
4	Erik Rydbert	0.03 s	Ruby	2016-07-20 10:20:01
5	Hidden user	0.04 s	Ruby	2018-06-24 23:12:12
6	Macdara mac an tSionnaigh	0.04 s	Ruby	2019-10-04 18:40:12
7	Thomas Feld	0.06 s	Ruby	2023-03-30 12:25:17
8	Daniel Harder	0.07 s	Ruby	2018-09-01 02:55:57
9	Alexander Bilde Pedersen	0.07 s	Ruby	2024-12-03 16:34:05

#	User	Runtime	Language	Date
1	Eric Pinter	0.00 s	Rust	2021-05-28 23:02:33
2	Norbert Voelker	0.00 s	Rust	2021-06-11 01:26:35
3	David Zacek	0.00 s	Rust	2021-09-05 18:10:48
4	Bas Dirks	0.00 s	Rust	2022-01-12 08:03:14
5	Daniel Anker Hermansen	0.00 s	Rust	2024-06-14 11:28:29
6	Jon Kåre Hellan	0.00 s	Rust	2024-06-18 14:05:26
7	Egor Kulikov	0.00 s	Rust	2025-01-07 18:47:58
8	Artur Khuziakhmetov	0.00 s	Rust	2025-01-16 12:11:12
9	Vincent Lagerros	0.00 s	Rust	2025-02-17 14:31:53
10	Joe Blower	0.00 s	Rust	2025-09-01 03:01:40

#	User	Runtime	Language	Date
1	John Magne Bredal	0.05 s	TypeScript	2024-06-18 14:24:52

#	User	Length	Language	Date
1	Velvet	391	C	2020-11-20 04:31:14
2	Anders Westling	419	C	2012-09-30 15:38:41
3	Albin Stensson	451	C	2023-01-06 18:04:39
4	Yap Yi Juinn Jacelyn	464	C	2016-12-17 12:09:29
5	Sambit Palit	512	C	2020-09-29 23:07:44
6	Jiangfeng Du	529	C	2019-03-20 09:56:27
7	Herbert Ilhan Tanujaya	534	C	2016-04-06 18:29:05
8	Said Lakhfif	555	C	2016-06-01 04:20:00
9	Esther Chong	559	C	2019-09-11 11:02:50
10	Bradford Regeski	568	C	2017-10-05 00:10:22

#	User	Length	Language	Date
1	Marek Bina	602	C#	2019-02-18 10:47:25
2	Bas te Kolste	810	C#	2015-06-15 22:27:51
3	Doug Goodman	910	C#	2018-02-23 23:57:57
4	Paweł Janiszewski	933	C#	2013-10-10 20:07:20
5	Thomas Norris	948	C#	2019-06-26 07:04:26
6	Sebastian Sternberg	1168	C#	2021-02-22 20:59:21
7	Li Langley	1206	C#	2017-11-03 05:29:23
8	Henrik Hallbert	1212	C#	2022-01-11 21:24:03
9	Daniel Ledger	1235	C#	2020-10-24 12:36:21
10	Göran Andersson	1289	C#	2022-05-24 00:24:51

#	User	Length	Language	Date
1	Frans Meulenbroeks	263	C++	2024-10-30 13:11:59
2	Herman Karlsson	266	C++	2015-02-12 20:09:16
3	Subramanian Ramasamy	296	C++	2022-09-01 08:52:35
4	Tyler Fernando	304	C++	2022-11-07 06:15:53
5	Mic Rey	350	C++	2025-08-24 10:37:46
6	Yeung Man Tsung	351	C++	2022-11-20 11:57:28
7	Jesús Pacheco Alonso	357	C++	2023-09-14 21:52:09
8	Way Tan	368	C++	2018-12-03 16:19:30
9	Armen Andreasyan	372	C++	2015-10-10 16:22:38
10	Admir Ahmespahić	375	C++	2019-03-18 22:49:49

#	User	Length	Language	Date
1	David Cawthon	841	Common Lisp	2020-09-13 05:29:55

#	User	Length	Language	Date
1	Elias Smedegaard	761	F#	2023-11-18 15:33:20
2	Hidden user	883	F#	2021-07-05 22:29:39
3	Jacob Harris Cryer Kragh	1042	F#	2022-12-26 09:31:15

#	User	Length	Language	Date
1	Jonas Hedin	491	Go	2015-02-26 18:03:40
2	Krzysztof Gibuła	757	Go	2019-02-25 20:16:32
3	Eric Martin	890	Go	2019-01-01 13:41:53
4	Akhikumar Indurti	1048	Go	2018-09-20 01:53:48
5	Hidden user	1212	Go	2018-05-03 00:19:37

#	User	Length	Language	Date
1	Udo Stenzel	274	Haskell	2023-04-15 16:13:16
2	Fran Cruz Zamorano	290	Haskell	2017-06-28 14:02:27
3	Aaron Lengyel	345	Haskell	2021-11-05 04:07:49
4	Roger Ballard	382	Haskell	2017-08-27 23:35:57
5	Brent Yorgey	385	Haskell	2017-10-15 06:46:23
6	Johan Meier	389	Haskell	2016-12-05 01:32:50
7	Vicky Nguyen	507	Haskell	2022-08-20 07:05:15
8	Zach Tschetter	587	Haskell	2021-04-17 01:44:13
9	Blake Hyde	610	Haskell	2017-01-27 20:49:44
10	Steinar Simonnes	681	Haskell	2024-02-12 16:19:31

#	User	Length	Language	Date
1	Doug Goodman	494	Java	2017-08-20 16:49:50
2	Prakash Varman	598	Java	2022-12-30 12:34:50
3	David Wang	608	Java	2018-09-20 01:44:35
4	Simon Xue	621	Java	2015-11-10 08:18:54
5	Syed AbuTalib	621	Java	2019-09-30 17:06:47
6	Baz Baz	625	Java	2018-09-20 01:39:02
7	PRIYANKA M	631	Java	2025-03-31 11:44:11
8	Mitchel Moir	634	Java	2022-01-06 04:04:22
9	Ayoub El Yaquine	638	Java	2016-12-23 12:59:06
10	Nathaniel	638	Java	2017-10-31 23:44:33

#	User	Length	Language	Date
1	Howard Tin Chi Chan	577	JavaScript (Node.js)	2021-03-21 19:47:56
2	Stian	913	JavaScript (Node.js)	2024-06-18 13:56:06
3	Aldo Luna Bueno	1101	JavaScript (Node.js)	2024-11-15 20:32:15
4	Oliver Bredenberg	2047	JavaScript (Node.js)	2019-08-29 09:32:02
5	Mikael Fiala-Lundström	2049	JavaScript (Node.js)	2021-06-21 17:51:09

#	User	Length	Language	Date
1	Jimmy Gustafsson	131	JavaScript (SpiderMonkey)	2024-08-27 23:55:47
2	Christian Pilegaard Cederquist	327	JavaScript (SpiderMonkey)	2023-02-05 09:08:01
3	Peter Kedemo	516	JavaScript (SpiderMonkey)	2015-12-21 00:06:45
4	Bjørn Chr. Soltvedt	583	JavaScript (SpiderMonkey)	2019-11-07 10:00:07
5	Magnar Myrtveit	672	JavaScript (SpiderMonkey)	2016-12-26 20:33:32
6	Nicklas Utgaard	974	JavaScript (SpiderMonkey)	2023-12-02 19:39:07
7	Hà Minh Ngọc	1166	JavaScript (SpiderMonkey)	2016-07-26 14:43:30
8	Hidden user	1166	JavaScript (SpiderMonkey)	2016-07-27 09:08:26

#	User	Length	Language	Date
1	Noszály Csaba	392	Julia	2025-04-08 22:29:24
2	Timothy Gaede	1113	Julia	2024-07-03 04:08:45

#	User	Length	Language	Date
1	Troy Warmboe	333	Kotlin	2020-02-05 22:23:04
2	Dmitry Shostak	562	Kotlin	2019-09-23 07:08:35
3	Adam Rankin	772	Kotlin	2023-05-10 03:40:00
4	Garrison Hatcher	987	Kotlin	2019-11-08 20:41:40
5	Neil Harmon	1043	Kotlin	2019-10-17 10:47:46
6	Jacob Huebner	1334	Kotlin	2021-06-03 00:24:49

#	User	Length	Language	Date
1	Magnus Ragnemalm	710	Pascal	2017-11-29 12:18:33
2	Ingemar Ragnemalm	722	Pascal	2017-08-17 09:53:40

#	User	Length	Language	Date
1	Silvena Lam	636	PHP	2016-06-06 16:27:27
2	陳建宏	1044	PHP	2021-06-25 17:53:06

#	User	Length	Language	Date
1	Jonas Nockert	3306	Prolog	2016-10-09 15:53:02

#	User	Length	Language	Date
1	Thomas Feld	183	Python 2	2019-08-21 14:50:15
2	Catalin Popa	210	Python 2	2018-11-22 04:50:28
3	Guan Yang Ze	240	Python 2	2019-08-27 09:45:01
4	Michael Gentile	249	Python 2	2017-10-26 19:55:37
5	Peter Sofronas	250	Python 2	2017-12-15 23:13:31
6	Dino Uman	251	Python 2	2015-09-27 19:35:07
7	Guðni Natan Gunnarsson	251	Python 2	2017-03-22 20:05:02
8	Andreas Björklund	258	Python 2	2019-12-26 08:49:29
9	Snild Dolkow	261	Python 2	2015-10-18 13:04:28
10	Çağdaş Öztekin	263	Python 2	2017-09-11 13:16:49

#	User	Length	Language	Date
1	June Hoop	103	Python 3	2025-09-21 16:24:08
2	Clement Oh	106	Python 3	2023-07-24 15:41:55
3	David Aldenbro	119	Python 3	2025-08-24 16:51:26
4	Harry Zhang	122	Python 3	2023-06-27 08:54:34
5	Noah Hessen Bjerke	131	Python 3	2023-12-08 14:42:04
6	Ahmed Chamseddine	147	Python 3	2024-08-19 14:35:12
7	Casper Rysgaard	150	Python 3	2021-11-03 18:14:22
8	benoit belasco	162	Python 3	2023-07-30 01:33:01
9	a_b__c	165	Python 3	2021-03-23 11:52:27
10	Christian Blumenthal	167	Python 3	2020-08-13 03:25:33

#	User	Length	Language	Date
1	Thomas Feld	87	Ruby	2023-03-30 12:25:17
2	Alexander Bilde Pedersen	128	Ruby	2024-12-03 16:34:05
3	Hidden user	176	Ruby	2018-06-24 23:12:12
4	Erik Rydbert	236	Ruby	2016-07-20 10:20:01
5	Macdara mac an tSionnaigh	302	Ruby	2019-10-04 18:40:12
6	Casper Christensen	390	Ruby	2016-01-24 17:07:50
7	Daniel Harder	403	Ruby	2018-09-01 02:55:57
8	Lasse Berglund	468	Ruby	2016-04-01 14:52:45
9	Shayon Mukherjee	651	Ruby	2016-03-08 04:47:57

#	User	Length	Language	Date
1	Vincent Lagerros	631	Rust	2025-02-17 14:31:53
2	David Zacek	902	Rust	2021-09-05 18:10:48
3	Norbert Voelker	1042	Rust	2021-06-11 01:26:35
4	Artur Khuziakhmetov	1199	Rust	2025-01-16 12:20:39
5	Bas Dirks	1235	Rust	2022-01-12 08:03:14
6	Eric Pinter	1236	Rust	2021-05-28 23:02:33
7	Jon Kåre Hellan	1283	Rust	2024-06-18 14:05:26
8	Joe Blower	2440	Rust	2025-09-01 03:01:40
9	Egor Kulikov	20579	Rust	2025-01-07 18:47:58
10	Daniel Anker Hermansen	26812	Rust	2024-06-14 11:28:29

#	User	Length	Language	Date
1	John Magne Bredal	1847	TypeScript	2024-06-18 14:24:52

Solution running time distribution