Problem I
Count Doubles — Problem Statistics

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Submissions	1373
Accepted submissions	705
Submission ratio	51.35%
Authors	633
Accepted authors	579
Author ratio	91.47%

#	User	Runtime	Language	Date
1	Thomas Feld	0.02 s	APL	2023-10-17 09:33:44

#	User	Runtime	Language	Date
1	Danny Robinson	0.01 s	Bash	2023-10-15 06:58:06
2	Thomas Feld	0.01 s	Bash	2023-10-17 09:29:03
3	Chenzhang Hu	0.09 s	Bash	2023-10-17 18:28:10

#	User	Runtime	Language	Date
1	Gregory Sinclair	0.04 s	C#	2023-12-09 05:24:15
2	Yuwono Bangun Nagoro	0.04 s	C#	2024-01-13 04:02:39
3	traxex	0.04 s	C#	2024-05-25 22:07:13
4	Գոռ Բաղդասարյան	0.04 s	C#	2024-07-30 09:38:07
5	Esty Crow	0.05 s	C#	2023-12-24 04:36:54
6	Umar Rasyid	0.05 s	C#	2025-02-28 05:46:04
7	Anthony Ye	0.06 s	C#	2024-01-07 20:13:35

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.07 s	F#	2023-04-16 10:58:14

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2023-04-11 23:26:30

#	User	Runtime	Language	Date
1	Brent Yorgey	0.01 s	Haskell	2023-04-10 00:49:10
2	Hidden user	0.01 s	Haskell	2023-04-10 14:57:50
3	Ng Tek In	0.01 s	Haskell	2023-09-01 02:46:41
4	Hidden user	0.01 s	Haskell	2023-10-05 17:03:14
5	Charley Sheaffer	0.01 s	Haskell	2023-12-10 18:28:08
6	Steinar Simonnes	0.01 s	Haskell	2024-02-12 18:40:08
7	Jan Hrček	0.01 s	Haskell	2024-12-26 08:08:29

#	User	Runtime	Language	Date
1	Choo Jun Inn Darren	0.04 s	Java	2024-09-09 17:09:09
2	Daryl Ghee Shao Wen	0.04 s	Java	2024-09-16 17:45:15
3	Ang Wei Jian	0.04 s	Java	2024-10-03 10:35:18
4	Lum Yi Ren Johannsen	0.04 s	Java	2024-10-03 12:04:58
5	Yuan Yusi	0.04 s	Java	2024-10-07 11:39:45
6	Foong Hong Yi	0.04 s	Java	2024-10-10 12:07:06
7	Tan Xing Zhong	0.04 s	Java	2024-10-11 14:28:54
8	ABDUL HAKAM BIN NOR RAZAK	0.04 s	Java	2024-10-11 15:55:40
9	Shreyas Jamadagni	0.04 s	Java	2024-10-12 12:04:45
10	Lae Zong Hon Justyn	0.04 s	Java	2024-10-12 12:39:31

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	JavaScript (Node.js)	2024-05-14 01:22:42

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2023-04-05 19:28:37
2	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-04-05 20:01:38
3	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2024-08-03 20:52:28
4	Zach Tschetter	0.04 s	JavaScript (SpiderMonkey)	2023-04-23 02:09:16
5	Caleb Westra	0.04 s	JavaScript (SpiderMonkey)	2024-01-16 05:00:39

#	User	Runtime	Language	Date
1	Daryll Ko	0.59 s	Julia	2023-04-28 18:03:06
2	Timothy Gaede	0.62 s	Julia	2024-05-03 06:10:43
3	Danny Robinson	0.86 s	Julia	2023-10-15 04:46:36

#	User	Runtime	Language	Date
1	Martijn Muijsers	0.20 s	Kotlin	2024-05-31 22:35:06
2	Hidden user	0.21 s	Kotlin	2023-04-11 23:31:31
3	Adam Rankin	0.22 s	Kotlin	2023-04-30 02:29:24
4	Ali M. Nekoh	0.23 s	Kotlin	2025-04-17 11:29:20
5	Troy Warmboe	0.24 s	Kotlin	2023-04-12 23:58:17
6	Cheatahh	0.25 s	Kotlin	2025-04-16 12:29:48

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2024-05-31 10:32:00

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.02 s	Prolog	2025-01-03 08:28:20

#	User	Runtime	Language	Date
1	Johan Lyts	0.03 s	Python 2	2023-04-09 22:07:43
2	Yanmarshus Bachtiar	0.03 s	Python 2	2023-07-26 04:42:49

#	User	Runtime	Language	Date
1	Dedooraths	0.04 s	Python 3	2024-08-28 21:56:29
2	Spencer Lee	0.04 s	Python 3	2024-09-06 01:19:31
3	Sriram Sai Ganesh	0.04 s	Python 3	2024-09-06 01:30:17
4	Brandon Young	0.04 s	Python 3	2024-09-06 01:34:39
5	Ole Vik Lysne	0.04 s	Python 3	2024-09-06 01:38:43
6	Kurt Wanner	0.04 s	Python 3	2024-09-06 01:58:39
7	David Huang	0.04 s	Python 3	2024-09-06 14:03:43
8	Ragav Janardhan	0.04 s	Python 3	2024-09-10 23:56:31
9	Mohammad Hashemi	0.04 s	Python 3	2024-09-18 00:34:35
10	Jonatan Nilsson	0.04 s	Python 3	2024-09-25 18:14:37

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-04-11 15:30:59
2	Clement Oh	0.07 s	Ruby	2023-10-24 05:33:24
3	Miorel Palii	0.07 s	Ruby	2024-01-16 02:31:12

#	User	Runtime	Language	Date
1	Aaron Lengyel	0.00 s	Rust	2023-04-06 11:27:35
2	Freek van Keulen	0.00 s	Rust	2023-10-13 10:40:50
3	David Rasch	0.00 s	Rust	2023-11-02 15:02:50
4	Bas Dirks	0.00 s	Rust	2023-12-25 19:53:12
5	Abrahim Toutoungi	0.00 s	Rust	2024-03-01 00:24:52
6	Isak Jägberg	0.00 s	Rust	2024-11-19 15:09:25
7	Vincent Lagerros	0.00 s	Rust	2024-12-04 23:36:33
8	Pankajkumar Patro	0.00 s	Rust	2025-03-22 13:05:14

#	User	Length	Language	Date
1	Thomas Feld	30	APL	2023-10-17 09:33:44

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-02-03 14:19:03
2	Danny Robinson	78	Bash	2023-10-15 06:58:06
3	Thomas Feld	101	Bash	2023-10-17 09:29:03

#	User	Length	Language	Date
1	Paul Mitchell	492	C	2024-05-14 02:11:23
2	Hidden user	501	C	2025-02-12 13:09:39
3	Arunraj Jayakumar	508	C	2025-03-29 17:16:57
4	Indah Mbah	535	C	2025-01-13 12:01:58
5	Martin Stensgård	544	C	2024-01-20 04:59:32
6	Sami Al Chalati	561	C	2025-01-18 10:29:40
7	Julian Duniec	652	C	2023-08-17 16:01:42
8	Jacob Harris Cryer Kragh	750	C	2023-04-16 11:13:16
9	Alexander Kunitsyn	919	C	2025-03-29 10:24:26
10	Abrantes Araújo Silva Filho	1259	C	2025-06-25 02:43:46

#	User	Length	Language	Date
1	Gregory Sinclair	224	C#	2023-12-09 05:24:15
2	traxex	394	C#	2024-05-25 22:07:13
3	Esty Crow	563	C#	2023-12-24 04:36:54
4	Anthony Ye	646	C#	2024-01-07 20:13:35
5	Գոռ Բաղդասարյան	832	C#	2024-07-30 09:38:07
6	Umar Rasyid	1166	C#	2025-02-28 05:46:04
7	Yuwono Bangun Nagoro	1174	C#	2024-01-13 04:02:39

#	User	Length	Language	Date
1	Frans Meulenbroeks	248	C++	2024-10-07 14:01:10
2	Thomas Li	302	C++	2022-11-26 19:33:19
3	Zac Friggstad	321	C++	2023-04-05 15:26:34
4	人外沙耶	337	C++	2023-12-01 03:01:39
5	Shubham Jain	339	C++	2022-11-26 19:33:47
6	Dau Huy Minh	341	C++	2023-11-04 08:27:57
7	Grae Yeandle	345	C++	2023-04-07 08:15:49
8	Laurentiu Grad	345	C++	2023-10-26 17:00:04
9	Cosma Razvan-Claudiu	349	C++	2023-10-26 17:00:34
10	Никита Кулик	359	C++	2023-04-09 19:18:41

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	764	F#	2023-04-16 11:01:54

#	User	Length	Language	Date
1	Norbert Voelker	637	Go	2023-04-11 23:26:30

#	User	Length	Language	Date
1	Brent Yorgey	129	Haskell	2023-04-10 00:55:01
2	Jan Hrček	208	Haskell	2024-12-26 08:08:29
3	Charley Sheaffer	271	Haskell	2023-12-10 18:28:08
4	Hidden user	552	Haskell	2023-04-10 14:57:50
5	Hidden user	607	Haskell	2023-10-05 17:03:14
6	Ng Tek In	833	Haskell	2023-09-01 02:46:41
7	Steinar Simonnes	913	Haskell	2024-02-12 18:40:08

#	User	Length	Language	Date
1	Emma Anderson	525	Java	2022-11-26 19:57:45
2	Oleksandr Karman	529	Java	2023-11-25 19:21:44
3	Raymond Arrington	566	Java	2024-06-21 19:17:02
4	Crystal Sharpe	651	Java	2023-08-30 05:08:36
5	Doug Goodman	654	Java	2023-04-30 16:00:21
6	Shardul Dhongade	680	Java	2022-11-26 22:03:11
7	Simon Baeckelant	689	Java	2023-12-16 02:47:32
8	Tan Zhang-Hng Ervin	694	Java	2024-10-02 13:50:52
9	Dexter Leng Jin Hao	708	Java	2024-10-07 09:31:08
10	Hidden user	710	Java	2024-10-26 10:31:13

#	User	Length	Language	Date
1	Hidden user	775	JavaScript (Node.js)	2024-05-14 01:22:42

#	User	Length	Language	Date
1	Jimmy Gustafsson	156	JavaScript (SpiderMonkey)	2024-08-03 20:52:28
2	Bjørn Chr. Soltvedt	167	JavaScript (SpiderMonkey)	2023-04-05 19:58:40
3	Zach Tschetter	283	JavaScript (SpiderMonkey)	2023-04-23 02:09:16
4	Christian Cederquist	310	JavaScript (SpiderMonkey)	2023-04-05 20:01:38
5	Caleb Westra	610	JavaScript (SpiderMonkey)	2024-01-16 05:00:39

#	User	Length	Language	Date
1	Danny Robinson	113	Julia	2023-10-15 04:46:36
2	Daryll Ko	492	Julia	2023-04-28 18:03:06
3	Timothy Gaede	634	Julia	2024-05-03 06:10:43

#	User	Length	Language	Date
1	Troy Warmboe	290	Kotlin	2023-04-12 23:58:17
2	Cheatahh	404	Kotlin	2025-04-16 12:29:48
3	Ali M. Nekoh	703	Kotlin	2025-04-17 11:29:20
4	Martijn Muijsers	884	Kotlin	2024-05-31 22:35:06
5	Adam Rankin	957	Kotlin	2023-04-30 02:29:24
6	Hidden user	992	Kotlin	2023-04-11 23:31:31

#	User	Length	Language	Date
1	Ingemar Ragnemalm	421	Pascal	2024-05-31 10:32:00

#	User	Length	Language	Date
1	Andriy Zyevakov	2976	Prolog	2025-01-03 08:28:20

#	User	Length	Language	Date
1	Johan Lyts	207	Python 2	2023-04-09 22:07:43
2	Yanmarshus Bachtiar	337	Python 2	2023-07-26 04:42:49

#	User	Length	Language	Date
1	Clement Oh	101	Python 3	2023-07-15 07:47:56
2	Benjamin Z White	104	Python 3	2023-05-10 12:09:22
3	Simon Reid	115	Python 3	2023-04-27 18:14:47
4	Michael Goldwasser	118	Python 3	2023-09-19 03:32:09
5	Thibault Raffaillac	135	Python 3	2024-08-01 15:14:50
6	Teikn Smith	136	Python 3	2024-03-01 03:19:47
7	Farzam Abrishami	137	Python 3	2023-12-03 02:26:35
8	Harry Zhang	142	Python 3	2023-11-27 22:12:38
9	Alexandre Charland	143	Python 3	2024-10-18 18:53:33
10	Eduardo Vicente Petry	149	Python 3	2024-02-11 22:28:58

#	User	Length	Language	Date
1	Clement Oh	92	Ruby	2023-10-24 05:33:24
2	Thomas Feld	96	Ruby	2023-04-11 15:42:29
3	Miorel Palii	250	Ruby	2024-01-16 02:31:12

#	User	Length	Language	Date
1	Vincent Lagerros	362	Rust	2024-12-04 23:36:49
2	Pankajkumar Patro	494	Rust	2025-03-22 13:05:14
3	David Rasch	645	Rust	2023-11-02 15:04:53
4	Bas Dirks	723	Rust	2023-12-25 19:53:12
5	Freek van Keulen	871	Rust	2023-10-13 10:40:50
6	Abrahim Toutoungi	1215	Rust	2024-03-01 00:24:52
7	Isak Jägberg	1430	Rust	2024-11-19 15:09:25
8	Aaron Lengyel	4625	Rust	2023-04-06 11:27:35

Solution running time distribution