Problem A
Memory Match — Problem Statistics

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Submissions	3775
Accepted submissions	1030
Submission ratio	27.28%
Authors	1051
Full solves [?]	872
Full solve Ratio	82.97%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2019-07-09 15:36:51
2	Mirel Cosulschi	0.00 s	C	2024-01-15 07:37:09
3	Vickers_13	0.00 s	C	2024-06-25 05:35:13
4	Boris Vanhoof	0.00 s	C	2025-08-28 21:21:19
5	Samuel Deutsch	0.01 s	C	2020-09-16 23:57:23

#	User	Runtime	Language	Date
1	Bastien Aubecq	0.04 s	C#	2024-02-12 20:25:19
2	Lukas P.	0.05 s	C#	2026-02-25 18:47:11

#	User	Runtime	Language	Date
1	Li Jun	0.01 s	Haskell	2023-06-22 15:06:47
2	Matthew Gvasalia	0.04 s	Haskell	2023-04-26 23:28:29

#	User	Runtime	Language	Date
1	Martijn Muijsers	0.07 s	Java	2016-11-09 00:38:45
2	Brent Yorgey	0.07 s	Java	2018-11-15 21:22:09
3	Jeegn Dani	0.07 s	Java	2020-09-16 16:28:50
4	Hidden user	0.07 s	Java	2026-03-04 00:31:21
5	Jan Jooß	0.07 s	Java	2026-03-05 12:02:58
6	William Fiset	0.08 s	Java	2016-11-05 20:07:18
7	Micah Stairs	0.08 s	Java	2016-11-06 00:09:20
8	Erik Baalhuis	0.08 s	Java	2017-08-25 17:10:35
9	Jeroen Bransen	0.08 s	Java	2017-09-12 14:16:40
10	Thomas Rooijakkers	0.08 s	Java	2017-11-03 13:07:25

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2017-01-08 03:12:32
2	Christian Pilegaard Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-08-23 09:07:31

#	User	Runtime	Language	Date
1	Chelsea Hoernemann	0.15 s	Kotlin	2022-10-11 21:43:11
2	Phường Lên	0.17 s	Kotlin	2020-04-13 22:01:41
3	Adam Rankin	0.21 s	Kotlin	2023-09-13 19:55:07
4	Johnny Baloney	0.25 s	Kotlin	2021-10-20 00:06:46
5	Ravisai Tiruvuri	0.26 s	Kotlin	2024-03-15 11:44:10
6	Adam Koprowski	0.27 s	Kotlin	2020-10-14 22:46:54

#	User	Runtime	Language	Date
1	Denis BAURAIN	0.01 s	Perl	2026-01-03 22:21:26

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.03 s	Python 2	2016-11-05 18:43:13
2	Herbert Ilhan Tanujaya	0.03 s	Python 2	2019-03-24 15:52:03
3	Lars Åström	0.04 s	Python 2	2019-04-26 11:46:20
4	William Taylor-Melanson	0.04 s	Python 2	2020-01-21 18:07:41
5	Suchi Amalapurapu	0.04 s	Python 2	2020-05-08 10:53:45
6	Andreas Björklund	0.04 s	Python 2	2020-08-22 12:02:53

#	User	Runtime	Language	Date
1	Christian Lindeström	0.02 s	Python 3	2016-11-11 13:05:59
2	Erik Tjøswold	0.02 s	Python 3	2017-11-05 18:06:07
3	Andre Pratama	0.02 s	Python 3	2018-05-01 18:58:21
4	Kristoffer Åhgren	0.02 s	Python 3	2019-01-01 16:42:49
5	Raymond Yang	0.02 s	Python 3	2019-02-03 20:09:14
6	Ron Joshi	0.02 s	Python 3	2019-02-03 21:41:37
7	Ainun Najib	0.02 s	Python 3	2019-07-30 17:56:40
8	Austin Fernandez	0.02 s	Python 3	2019-08-10 22:14:44
9	Špela Šter	0.02 s	Python 3	2019-08-29 15:43:17
10	Sven Holtrop	0.02 s	Python 3	2019-09-10 22:42:59

#	User	Runtime	Language	Date
1	Chun Mun Soon	0.00 s	Rust	2021-07-25 06:57:46
2	Ishtiaq Hussain Naqi	0.00 s	Rust	2023-08-24 00:15:20
3	Alexandr Last	0.00 s	Rust	2023-08-30 21:00:42
4	jaswanth	0.00 s	Rust	2024-02-26 14:26:52
5	Pahlevi Fikri Auliya	0.02 s	Rust	2020-10-14 17:49:39

#	User	Length	Language	Date
1	Ivan Petrov	1260	C	2019-07-09 15:36:51
2	Samuel Deutsch	1559	C	2020-09-16 23:57:23
3	Boris Vanhoof	2078	C	2025-08-28 21:21:19
4	Mirel Cosulschi	2708	C	2024-01-15 07:37:09
5	Vickers_13	5119	C	2024-06-25 05:35:13

#	User	Length	Language	Date
1	Lukas P.	1697	C#	2026-02-25 18:47:11
2	Bastien Aubecq	2051	C#	2024-02-12 20:25:19

#	User	Length	Language	Date
1	Mugeon Kim	417	C++	2024-01-16 13:48:02
2	Anna Roczek	447	C++	2023-07-06 15:24:17
3	Luis Alberto Silva Cazares	585	C++	2019-07-29 00:11:23
4	Kevin X Huai	588	C++	2024-06-25 23:10:38
5	Abdulrahman Elfeky	593	C++	2023-03-10 06:46:11
6	Alan Victor	622	C++	2023-08-13 22:31:24
7	William Gan	624	C++	2018-03-27 12:17:29
8	張均聖	636	C++	2020-01-26 05:21:14
9	Anders Leo	673	C++	2020-03-18 14:55:34
10	David Toh	677	C++	2023-08-25 11:34:41

#	User	Length	Language	Date
1	Li Jun	1003	Haskell	2023-06-22 15:06:47
2	Matthew Gvasalia	2242	Haskell	2023-04-26 23:28:29

#	User	Length	Language	Date
1	William Beard	1063	Java	2020-11-29 03:30:07
2	Steven Xu	1154	Java	2020-12-05 16:48:22
3	Bai Zhaochen	1174	Java	2019-02-28 01:08:28
4	Duncan Page	1182	Java	2018-02-12 22:59:11
5	Andrew Polizzotto	1190	Java	2020-03-20 00:44:03
6	Kushal Dandamudi	1222	Java	2020-12-05 01:15:04
7	Danniel Alcantara	1235	Java	2024-01-12 01:19:58
8	Doug Goodman	1239	Java	2018-02-19 19:49:48
9	Dominic Reed	1247	Java	2021-11-13 23:52:11
10	Shichen Zhang	1254	Java	2020-08-14 05:15:04

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	603	JavaScript (SpiderMonkey)	2017-01-08 03:12:32
2	Christian Pilegaard Cederquist	831	JavaScript (SpiderMonkey)	2023-08-23 09:07:31

#	User	Length	Language	Date
1	Johnny Baloney	1103	Kotlin	2021-10-20 00:06:46
2	Adam Koprowski	1183	Kotlin	2020-10-14 22:46:54
3	Phường Lên	1417	Kotlin	2020-04-13 22:01:41
4	Adam Rankin	1591	Kotlin	2023-09-13 19:55:07
5	Chelsea Hoernemann	2453	Kotlin	2022-10-11 21:43:11
6	Ravisai Tiruvuri	5292	Kotlin	2024-03-15 11:44:10

#	User	Length	Language	Date
1	Denis BAURAIN	375	Perl	2026-01-09 13:11:44

#	User	Length	Language	Date
1	Herbert Ilhan Tanujaya	439	Python 2	2019-03-24 15:52:03
2	Andreas Björklund	551	Python 2	2020-08-22 12:02:53
3	William Taylor-Melanson	640	Python 2	2020-01-21 18:06:26
4	Lars Åström	644	Python 2	2019-04-26 11:46:20
5	Christofer Ohlsson	740	Python 2	2016-11-05 18:43:13
6	Suchi Amalapurapu	909	Python 2	2020-05-08 10:53:45

#	User	Length	Language	Date
1	William Chorkawy	406	Python 3	2025-03-12 14:42:17
2	Kelly Dance	423	Python 3	2022-08-17 03:34:32
3	alexandre dewilde	428	Python 3	2024-02-12 20:21:59
4	Thibault Raffaillac	451	Python 3	2020-01-26 20:10:49
5	Tang Minh Nghia	468	Python 3	2024-11-10 17:54:43
6	Wayne	472	Python 3	2022-07-10 09:50:25
7	Christian Lindeström	514	Python 3	2016-11-11 13:05:59
8	Sven Holtrop	527	Python 3	2019-09-10 22:42:59
9	Nicholas Russell Saerang	529	Python 3	2023-06-25 04:07:06
10	Mukerem Ali Nur	534	Python 3	2022-09-06 09:10:26

#	User	Length	Language	Date
1	Alexandr Last	1737	Rust	2023-08-30 21:00:42
2	jaswanth	1778	Rust	2024-02-26 14:26:52
3	Chun Mun Soon	2232	Rust	2021-07-25 06:57:46
4	Ishtiaq Hussain Naqi	2305	Rust	2023-08-24 00:15:20
5	Pahlevi Fikri Auliya	2732	Rust	2020-10-14 17:49:39

Solution running time distribution