Problem A
Quick Estimates — Problem Statistics

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Submissions	15788
Accepted submissions	8388
Submission ratio	53.13%
Authors	8090
Accepted authors	7649
Author ratio	94.55%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.01 s	Bash	2023-09-03 18:35:07
2	Thomas Feld	0.01 s	Bash	2023-09-26 12:30:50

#	User	Runtime	Language	Date
1	Talgat Yegizbayev	0.02 s	C#	2016-09-24 19:36:52
2	Björn Gunnarsson	0.02 s	C#	2016-09-24 20:16:47
3	Khin Nyunt	0.02 s	C#	2016-09-29 14:22:51
4	Utku Yurter	0.02 s	C#	2016-10-02 19:28:21
5	Duelene Olson	0.02 s	C#	2016-10-03 15:10:18
6	Ugnius Skučas	0.02 s	C#	2016-10-04 14:00:28
7	Rail Sabirov	0.02 s	C#	2016-10-12 15:44:57
8	Ludwig Hedeby	0.02 s	C#	2016-10-14 22:25:19
9	Jonathan Walker	0.02 s	C#	2016-10-19 14:15:40
10	Sean Gorsky	0.02 s	C#	2016-10-21 07:51:02

#	User	Runtime	Language	Date
1	wibi	0.01 s	Common Lisp	2020-08-21 13:45:20
2	Ralf Jonas	0.01 s	Common Lisp	2023-09-08 10:34:49
3	David Cawthon	0.02 s	Common Lisp	2019-04-20 17:52:57

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2022-06-08 19:55:02

#	User	Runtime	Language	Date
1	Jimmy Nejtron	0.00 s	Go	2023-09-05 09:09:42
2	Alejandro Germain	0.01 s	Go	2018-10-14 12:19:47
3	Neal McCarthy	0.01 s	Go	2018-10-29 01:53:32
4	Joshua Gerber	0.02 s	Go	2018-09-14 20:15:02
5	Oskar Johanson	0.02 s	Go	2019-10-12 10:17:08
6	Dylan Mcdougall	0.02 s	Go	2019-11-17 18:58:18
7	Hidden user	0.02 s	Go	2021-05-08 03:24:57
8	Péter Szakszon	0.02 s	Go	2021-12-28 10:04:29
9	Michael Lapan	0.02 s	Go	2022-08-15 15:21:21
10	Saman Shahroudi	0.02 s	Go	2022-03-05 09:25:59

#	User	Runtime	Language	Date
1	Mebrahtom Guesh Gebremichael	0.04 s	Java	2024-09-15 14:54:30
2	Nick Wu	0.05 s	Java	2016-09-24 18:06:06
3	Mohammad Haider	0.05 s	Java	2016-09-24 18:08:38
4	Andy Rock	0.05 s	Java	2016-09-24 18:15:37
5	Jeffrey Xiao	0.05 s	Java	2016-09-24 18:15:44
6	Austin Schwartz	0.05 s	Java	2016-09-24 18:16:01
7	Matthew Worley	0.05 s	Java	2016-09-24 18:16:12
8	Daniel Moyer	0.05 s	Java	2016-09-24 18:16:47
9	Prashast Vaidya	0.05 s	Java	2016-09-24 18:16:55
10	William Fiset	0.05 s	Java	2016-09-24 18:17:24

#	User	Runtime	Language	Date
1	Carl Sundvall	0.05 s	JavaScript (Node.js)	2018-10-27 19:45:42
2	Chyld Medford	0.05 s	JavaScript (Node.js)	2018-11-27 22:23:26
3	Jerry Hu	0.05 s	JavaScript (Node.js)	2019-01-25 04:35:04
4	José Lucas	0.05 s	JavaScript (Node.js)	2019-03-12 13:00:32
5	Sander Hellesø	0.05 s	JavaScript (Node.js)	2019-04-14 03:32:38
6	Hidden user	0.05 s	JavaScript (Node.js)	2024-08-30 03:36:10
7	Benny	0.08 s	JavaScript (Node.js)	2022-06-28 14:20:16
8	Bashar Altaleb	0.08 s	JavaScript (Node.js)	2022-04-16 03:10:35
9	Toa Pita	0.09 s	JavaScript (Node.js)	2022-06-17 03:24:31
10	Vu Van Dung	0.09 s	JavaScript (Node.js)	2022-09-14 21:07:03

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	JavaScript (SpiderMonkey)	2016-09-24 19:29:20
2	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-09-25 09:47:43
3	Cole Rauh	0.01 s	JavaScript (SpiderMonkey)	2016-10-06 18:05:51
4	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-10-18 22:58:04
5	J M	0.01 s	JavaScript (SpiderMonkey)	2016-10-28 13:31:19
6	Tor Nordqvist	0.01 s	JavaScript (SpiderMonkey)	2016-11-14 15:58:43
7	Mohammad Mousavi	0.01 s	JavaScript (SpiderMonkey)	2017-01-03 12:40:52
8	Alan Delaney	0.01 s	JavaScript (SpiderMonkey)	2017-04-12 02:24:11
9	Spencer Smith	0.01 s	JavaScript (SpiderMonkey)	2017-07-18 23:00:37
10	Peter Menyes	0.01 s	JavaScript (SpiderMonkey)	2017-08-16 14:01:02

#	User	Runtime	Language	Date
1	Danny Robinson	0.53 s	Julia	2023-06-21 12:48:16
2	Timothy Gaede	0.60 s	Julia	2024-03-23 06:45:15

#	User	Runtime	Language	Date
1	Jacob Huebner	0.11 s	Kotlin	2022-01-16 07:05:04
2	Albert Pala	0.12 s	Kotlin	2021-05-27 05:52:36
3	Dayan Ruben Gonzalez	0.16 s	Kotlin	2020-09-27 22:09:08
4	Ahmed Waseem Saeed	0.16 s	Kotlin	2021-12-19 15:57:19
5	Oskar Eriksson	0.17 s	Kotlin	2017-12-16 11:24:03
6	Dmitry Shostak	0.17 s	Kotlin	2018-06-13 15:18:04
7	Yang Tang	0.17 s	Kotlin	2023-07-19 09:14:44
8	Zaw Myat	0.18 s	Kotlin	2024-01-28 09:12:25
9	Jahid Hasan Imon	0.19 s	Kotlin	2020-05-09 19:16:06
10	Sergey Jakobsen	0.19 s	Kotlin	2021-03-08 21:41:48

#	User	Runtime	Language	Date
1	Matthew Wilbern	0.00 s	Lua	2024-09-28 11:21:15

#	User	Runtime	Language	Date
1	Halldór Ingi Skúlason	0.00 s	Objective-C	2018-10-09 12:22:10

#	User	Runtime	Language	Date
1	Fredrik Eriksson	0.00 s	OCaml	2024-10-29 22:11:04

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2018-01-15 20:15:34
2	Egor Shchetinin	0.00 s	Pascal	2018-01-22 16:55:41
3	Vova Podkorytov	0.00 s	Pascal	2018-01-22 16:58:36
4	Vitas	0.00 s	Pascal	2019-12-26 15:11:40
5	5C24 Ng Shing Cheong 5C24 吳成昌	0.00 s	Pascal	2020-02-07 10:51:25
6	Hidden user	0.00 s	Pascal	2020-02-09 12:05:21
7	David Connolly	0.00 s	Pascal	2022-04-20 12:09:08

#	User	Runtime	Language	Date
1	Saito Ta	0.00 s	Perl	2024-04-25 09:53:20

#	User	Runtime	Language	Date
1	Ali Pandidan	0.01 s	PHP	2016-11-02 07:54:42
2	Steven D. Wilson	0.01 s	PHP	2016-11-25 04:18:16
3	Silvena Lam	0.01 s	PHP	2018-02-27 08:28:10
4	Anderson Palmeira	0.01 s	PHP	2018-05-04 19:56:48
5	Emil Riis Hansen	0.01 s	PHP	2018-10-28 21:15:38
6	Jonas Lindenskov Nielsen	0.01 s	PHP	2019-10-08 12:23:40
7	G V	0.01 s	PHP	2020-01-21 00:52:35
8	Peter Kvick	0.01 s	PHP	2020-02-06 03:05:07
9	Renate	0.01 s	PHP	2021-04-13 02:41:19
10	David Vinje	0.01 s	PHP	2022-04-08 11:19:12

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.01 s	Prolog	2016-12-03 13:20:30
2	Hadi Qovaizi	0.01 s	Prolog	2016-12-15 09:26:11
3	Johan Öhlin	0.01 s	Prolog	2017-08-17 09:33:55
4	Hakan Kjellerstrand	0.02 s	Prolog	2023-02-01 08:29:47

#	User	Runtime	Language	Date
1	Dawon Lee	0.02 s	Python 3	2016-09-24 18:10:38
2	Zihao Zhang	0.02 s	Python 3	2016-09-24 18:11:04
3	Brooks Becton	0.02 s	Python 3	2016-09-24 18:12:44
4	Alex Foley	0.02 s	Python 3	2016-09-24 18:14:51
5	Aldo Chow	0.02 s	Python 3	2016-09-24 18:14:51
6	Dalton Forbes	0.02 s	Python 3	2016-09-24 18:15:57
7	Swaraj Dhumne	0.02 s	Python 3	2016-09-24 18:17:52
8	Akemi Homura	0.02 s	Python 3	2016-09-24 18:18:07
9	Arnar Bjarni Arnarson	0.02 s	Python 3	2016-09-24 18:19:10
10	Alex Damian	0.02 s	Python 3	2016-09-24 18:19:25

#	User	Runtime	Language	Date
1	Casper Christensen	0.03 s	Ruby	2016-10-06 17:55:24
2	Kevin Suwala	0.03 s	Ruby	2017-01-07 03:12:49
3	Arnaud Meuret	0.03 s	Ruby	2017-03-16 20:11:50
4	Xiuqi Xia	0.03 s	Ruby	2017-03-17 19:37:12
5	Joel Niemelä	0.03 s	Ruby	2017-05-21 22:51:00
6	Paul Vinell	0.04 s	Ruby	2018-04-26 09:49:38
7	Jason Cheong-Kee-You	0.04 s	Ruby	2018-05-30 03:51:32
8	Hidden user	0.04 s	Ruby	2018-09-28 11:23:48
9	Savvas Alexandrou	0.04 s	Ruby	2018-12-03 08:06:15
10	Olivia Bednar	0.04 s	Ruby	2019-09-02 22:53:25

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-02-03 09:52:09
2	Thomas Feld	13	Bash	2023-09-26 12:31:38

#	User	Length	Language	Date
1	Sawyer Frie	78	C	2024-04-24 17:59:57
2	Martin Blom	103	C	2023-10-18 13:20:42
3	Stian Toften	140	C	2021-04-17 01:16:04
4	Victor Souza	152	C	2017-04-11 22:45:45
5	huy lý	177	C	2022-08-31 09:27:26
6	Sree Lalitha Ambatipudi	179	C	2020-05-18 15:53:51
7	Nikitha	180	C	2019-09-26 08:55:14
8	SUMANTHA NEDUNCHEZIYAN	180	C	2019-09-26 08:55:44
9	Leena S	181	C	2019-09-26 08:53:49
10	Hidden user	181	C	2019-09-26 08:53:57

#	User	Length	Language	Date
1	Thomas Norris	215	C#	2019-06-20 06:44:54
2	Marek Bina	225	C#	2019-02-25 09:43:53
3	Kunwei Zhang	227	C#	2018-02-06 15:16:13
4	李陆屿	230	C#	2019-01-20 12:05:24
5	Jesus Kvistus	241	C#	2020-12-20 15:21:24
6	TamaraKarebi Wodu	241	C#	2021-06-08 00:06:44
7	Bisma Balouch	241	C#	2021-06-09 20:46:31
8	Amir Khan	241	C#	2021-06-10 21:24:35
9	Rupesh Chandrajit Singh	243	C#	2021-06-10 21:01:59
10	Steve Jia	244	C#	2018-08-27 19:42:47

#	User	Length	Language	Date
1	Dominic Sagen	103	C++	2023-01-31 01:04:10
2	Frans Meulenbroeks	112	C++	2024-10-28 23:00:55
3	a_b__c	132	C++	2021-01-05 09:34:12
4	Almaz Tukenov	141	C++	2017-09-23 17:45:22
5	Aaron Ye	144	C++	2022-07-13 17:47:52
6	Yuanhao Wei	145	C++	2016-09-24 18:36:27
7	Maheen Hussain	147	C++	2019-06-02 07:35:46
8	Kevin Li	147	C++	2019-09-30 02:18:20
9	Duy Lê	148	C++	2016-09-24 19:03:23
10	Emmanuel Anaya	148	C++	2020-12-04 00:25:25

#	User	Length	Language	Date
1	Ralf Jonas	75	Common Lisp	2023-09-08 10:34:49
2	wibi	86	Common Lisp	2020-08-21 13:45:20
3	David Cawthon	138	Common Lisp	2019-04-20 17:52:57

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	141	F#	2022-06-08 19:55:02

#	User	Length	Language	Date
1	dick move	148	Go	2021-05-28 19:04:12
2	Hidden user	163	Go	2021-12-17 09:39:51
3	Dylan Mcdougall	164	Go	2019-11-17 18:58:18
4	Hidden user	164	Go	2018-09-28 11:15:39
5	Lucca Dias	171	Go	2021-11-11 00:58:21
6	Wojtek Bednarzak	171	Go	2018-05-01 22:33:18
7	Hidden user	178	Go	2017-11-22 18:41:23
8	Joshua Gerber	179	Go	2018-09-14 20:15:02
9	Reza Morsali	185	Go	2018-12-31 19:38:48
10	Steven Core	186	Go	2017-03-19 08:15:51

#	User	Length	Language	Date
1	Rudy Matela	49	Haskell	2023-09-13 19:24:32
2	Sebastian Banert	62	Haskell	2023-04-07 22:34:59
3	Monique Oliveira	62	Haskell	2021-06-11 03:24:45
4	Benjamin Philippe Applegate	62	Haskell	2021-12-03 02:56:14
5	Patrick Bahr	64	Haskell	2018-11-25 13:13:34
6	Dominic Mills	64	Haskell	2020-12-27 18:01:44
7	Henrik Olsen Eide	64	Haskell	2021-12-21 18:36:43
8	Nils Thorin	66	Haskell	2025-02-08 23:35:10
9	Matheus Gaseta	66	Haskell	2019-04-27 14:46:45
10	Jan Hlavacek	68	Haskell	2016-11-02 02:14:00

#	User	Length	Language	Date
1	Phi Va Lo	149	Java	2023-10-01 12:48:59
2	Sif Due Jacobsen	222	Java	2023-10-05 16:41:58
3	Lim Ting Kai	230	Java	2023-08-03 12:27:42
4	Xudong Brandon Liang	237	Java	2016-09-28 19:58:45
5	Amon Al-khatib	238	Java	2016-10-11 18:34:36
6	Jason Brar	238	Java	2016-09-24 18:25:37
7	Daniel West	239	Java	2017-12-07 17:17:52
8	Chris Lamb	240	Java	2016-09-28 19:56:45
9	Raymond Arrington	241	Java	2024-06-16 04:33:21
10	Ali Pervaiz	244	Java	2019-03-18 20:51:12

#	User	Length	Language	Date
1	Chris Wong	240	JavaScript (Node.js)	2021-02-01 02:57:46
2	Emil Larsson	247	JavaScript (Node.js)	2020-06-22 22:31:53
3	Vu Van Dung	257	JavaScript (Node.js)	2022-09-14 21:07:03
4	Toa Pita	277	JavaScript (Node.js)	2022-05-20 03:23:54
5	Hidden user	291	JavaScript (Node.js)	2023-01-31 05:17:07
6	Nguyen Dinh Vu	292	JavaScript (Node.js)	2023-02-07 09:35:10
7	Jeremy Liu	307	JavaScript (Node.js)	2022-03-27 18:57:55
8	Antoine Bauri	314	JavaScript (Node.js)	2021-02-15 23:25:45
9	Howard Tin Chi Chan	346	JavaScript (Node.js)	2021-01-31 11:15:17
10	Hovhannes Kantuni	348	JavaScript (Node.js)	2020-08-27 17:54:43

#	User	Length	Language	Date
1	Christian Cederquist	42	JavaScript (SpiderMonkey)	2022-11-08 01:42:13
2	Jimmy Gustafsson	43	JavaScript (SpiderMonkey)	2024-06-12 00:21:34
3	Evan Magill	55	JavaScript (SpiderMonkey)	2024-04-19 04:59:32
4	Cole Rauh	67	JavaScript (SpiderMonkey)	2016-10-06 18:05:51
5	Bjørn Chr. Soltvedt	72	JavaScript (SpiderMonkey)	2016-10-18 22:58:04
6	Peter Kedemo	78	JavaScript (SpiderMonkey)	2016-09-25 09:47:43
7	Zach Tschetter	80	JavaScript (SpiderMonkey)	2023-06-03 04:59:01
8	Dylan Mcdougall	81	JavaScript (SpiderMonkey)	2019-11-17 18:41:04
9	Bernard Perrin	83	JavaScript (SpiderMonkey)	2019-01-20 16:31:33
10	Casey Smith	84	JavaScript (SpiderMonkey)	2019-05-21 16:29:22

#	User	Length	Language	Date
1	Danny Robinson	57	Julia	2023-06-21 12:48:16
2	Timothy Gaede	634	Julia	2024-03-23 06:45:15

#	User	Length	Language	Date
1	Yang Tang	84	Kotlin	2023-07-19 09:14:44
2	axl	96	Kotlin	2019-08-06 07:26:47
3	Troy Warmboe	105	Kotlin	2020-02-08 15:35:06
4	Jahid Hasan Imon	111	Kotlin	2020-05-09 19:16:06
5	Dominic Blaich	114	Kotlin	2022-08-03 21:49:32
6	Sergey Jakobsen	119	Kotlin	2021-03-08 21:41:48
7	Hidden user	120	Kotlin	2019-11-14 21:59:54
8	Phường Lên	127	Kotlin	2020-01-03 05:42:50
9	Adam Rankin	133	Kotlin	2023-05-03 22:35:41
10	Dmitry Shostak	140	Kotlin	2018-06-13 15:18:04

#	User	Length	Language	Date
1	Matthew Wilbern	1535	Lua	2024-09-28 11:21:15

#	User	Length	Language	Date
1	Halldór Ingi Skúlason	370	Objective-C	2018-10-09 12:22:10

#	User	Length	Language	Date
1	Fredrik Eriksson	190	OCaml	2024-10-29 22:11:04

#	User	Length	Language	Date
1	Egor Shchetinin	117	Pascal	2018-01-22 16:55:41
2	Vova Podkorytov	127	Pascal	2018-01-22 16:58:36
3	Ingemar Ragnemalm	170	Pascal	2018-01-15 20:15:34
4	5C24 Ng Shing Cheong 5C24 吳成昌	174	Pascal	2020-02-07 10:51:25
5	David Connolly	199	Pascal	2022-04-20 12:09:08
6	Hidden user	270	Pascal	2020-02-09 12:05:21
7	Vitas	287	Pascal	2019-12-26 15:11:40

#	User	Length	Language	Date
1	Saito Ta	25	Perl	2024-04-25 09:53:20

#	User	Length	Language	Date
1	David Vinje	130	PHP	2022-04-08 11:19:12
2	Jonas Lindenskov Nielsen	137	PHP	2019-10-08 12:23:40
3	Anderson Palmeira	141	PHP	2018-05-04 19:56:48
4	Steven D. Wilson	157	PHP	2016-11-25 04:18:16
5	Peter Kvick	162	PHP	2020-02-06 03:05:07
6	Renate	165	PHP	2021-04-13 02:41:19
7	G V	204	PHP	2020-01-21 00:52:35
8	Ali Pandidan	226	PHP	2016-11-02 07:54:42
9	Silvena Lam	253	PHP	2018-02-27 08:28:10
10	Emil Riis Hansen	344	PHP	2018-10-28 21:15:38

#	User	Length	Language	Date
1	Hakan Kjellerstrand	125	Prolog	2023-03-04 21:02:30
2	Johan Öhlin	186	Prolog	2017-08-17 09:33:55
3	Andriy Zyevakov	325	Prolog	2016-12-03 13:20:30
4	Hadi Qovaizi	7177	Prolog	2016-12-15 09:26:11

#	User	Length	Language	Date
1	Clement Oh	38	Python 3	2023-05-11 16:51:42
2	Allison Pelton	41	Python 3	2024-11-25 01:36:26
3	Gustav Elmqvist	41	Python 3	2023-03-04 23:37:40
4	Maxwell Penders	41	Python 3	2023-06-13 22:41:45
5	Evie Russ	41	Python 3	2023-11-13 13:06:30
6	Lennart Meyling	41	Python 3	2024-06-25 01:22:31
7	Erik Ulff	41	Python 3	2024-03-20 11:00:26
8	Tai Tze Kin	42	Python 3	2024-05-01 16:58:55
9	Alexandre Charland	44	Python 3	2024-09-27 16:06:06
10	Benjamin Z White	44	Python 3	2023-04-06 14:01:21

#	User	Length	Language	Date
1	Thomas Feld	18	Ruby	2022-11-02 09:00:06
2	Frederik Spang	21	Ruby	2022-10-02 14:41:19
3	Andreas Severin Hauch Trøstrup	21	Ruby	2022-10-02 16:54:09
4	Gustav Elmqvist	21	Ruby	2023-03-04 23:59:57
5	Frederik Petersen	21	Ruby	2022-10-04 17:09:41
6	Arnaud Meuret	39	Ruby	2017-03-16 20:11:50
7	Dylan Mcdougall	41	Ruby	2019-11-17 18:52:57
8	Régis Hanol	42	Ruby	2022-01-11 15:32:22
9	Macdara mac an tSionnaigh	47	Ruby	2019-09-28 21:14:44
10	Paul Vinell	48	Ruby	2018-04-26 09:49:38

#	User	Length	Language	Date
1	David Aldenbro	88	Rust	2023-09-21 19:32:54
2	Vincent Lagerros	88	Rust	2024-12-03 21:30:12
3	Artur Khuziakhmetov	180	Rust	2022-07-08 17:29:19
4	Thomas	219	Rust	2020-12-06 20:33:57
5	Jack Arthur Harrhy	227	Rust	2020-01-22 16:33:56
6	Morten Raeburn	245	Rust	2021-11-10 03:55:23
7	Mattéo Ladrat	249	Rust	2021-01-23 12:29:49
8	Hidden user	252	Rust	2018-11-05 21:07:01
9	Guilherme Prado	263	Rust	2019-11-30 05:43:48
10	Tommy Boisseau	273	Rust	2023-09-29 14:50:21

Solution running time distribution