Problem D
Stamp Combinations — Problem Statistics

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Submissions	3147
Accepted submissions	741
Submission ratio	23.55%
Authors	783
Accepted authors	592
Author ratio	75.61%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.31 s	Bash	2024-04-17 18:30:58

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.13 s	C	2022-02-04 17:31:58
2	Hidden user	0.26 s	C	2025-05-25 09:49:20

#	User	Runtime	Language	Date
1	Alexander Kravberg	0.07 s	C++	2022-01-29 02:31:04
2	Florian Cliquet	0.07 s	C++	2024-09-26 17:02:57
3	Qingyu	0.09 s	C++	2022-01-28 09:21:11
4	Henry Xia	0.09 s	C++	2022-05-14 02:14:33
5	Joseph Durie	0.10 s	C++	2022-01-22 20:20:42
6	Ian DeHaan	0.10 s	C++	2022-01-22 21:17:58
7	Brandon Gorski	0.10 s	C++	2022-01-22 22:35:29
8	Chenzhang Hu	0.10 s	C++	2022-02-04 17:40:16
9	Richard Li	0.11 s	C++	2022-01-22 20:38:24
10	Brandon Zhang	0.11 s	C++	2022-01-22 20:40:17

#	User	Runtime	Language	Date
1	Matthew Craven	0.18 s	Haskell	2022-01-22 20:50:36

#	User	Runtime	Language	Date
1	Bjørn Dons	0.28 s	Java	2022-05-01 09:05:55
2	Arup Ratan Guha	0.38 s	Java	2023-01-29 13:43:22
3	Logan Pipes	0.44 s	Java	2022-01-23 03:27:25
4	Jeffrey Formica	0.47 s	Java	2023-04-21 03:15:08
5	Frank Liu	0.55 s	Java	2023-06-14 23:29:31
6	Zach Tschetter	0.61 s	Java	2022-01-27 03:14:46
7	Brent Yorgey	0.64 s	Java	2022-02-03 05:32:31
8	Alan Perez	0.64 s	Java	2023-04-21 02:18:20
9	yekun xu	0.64 s	Java	2025-04-09 09:56:33
10	Hidden user	0.66 s	Java	2024-09-09 04:19:10

#	User	Runtime	Language	Date
1	Christian Cederquist	1.17 s	JavaScript (SpiderMonkey)	2023-11-07 23:38:09

#	User	Runtime	Language	Date
1	Jacob Huebner	0.39 s	Kotlin	2022-01-22 20:52:18
2	Yang Tang	1.61 s	Kotlin	2023-06-13 06:16:35
3	Adam Rankin	2.91 s	Kotlin	2023-05-11 19:01:46

#	User	Runtime	Language	Date
1	Andreas Björklund	1.78 s	Python 2	2022-01-29 11:34:14

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	0.36 s	Python 3	2022-01-26 20:53:36
2	Hidden user	0.43 s	Python 3	2024-09-13 08:26:14
3	Hidden user	0.44 s	Python 3	2023-04-23 14:12:03
4	Siyong Liu	0.48 s	Python 3	2023-09-09 17:33:50
5	Dun Ma	0.49 s	Python 3	2022-01-22 20:57:07
6	Hidden user	0.49 s	Python 3	2025-04-15 03:21:21
7	Hidden user	0.51 s	Python 3	2025-04-16 03:34:49
8	Jeffrey W	0.51 s	Python 3	2025-05-03 08:27:50
9	Wisha Wanichwecharungruang	0.55 s	Python 3	2022-01-23 00:41:24
10	Brooklynn Stone	0.55 s	Python 3	2022-01-28 19:57:07

#	User	Runtime	Language	Date
1	Jonas Ulsnes Jørgensen	0.48 s	Rust	2022-02-11 17:56:38
2	Alice Ryhl	1.01 s	Rust	2022-02-11 18:07:26

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-04-17 18:30:58

#	User	Length	Language	Date
1	Chenzhang Hu	909	C	2022-02-04 17:31:58
2	Hidden user	1243	C	2025-05-25 09:47:21

#	User	Length	Language	Date
1	Yeoh Han Yi	372	C++	2025-04-15 13:59:14
2	Shukai Zhang	470	C++	2024-09-08 06:39:01
3	Lim An Jun	513	C++	2023-01-10 06:35:00
4	Shang Zhou	523	C++	2022-01-22 21:21:32
5	Zhuolin Yang	548	C++	2022-01-22 23:14:03
6	Tim Dong	557	C++	2022-01-29 08:30:31
7	Yeung Man Tsung	567	C++	2023-01-09 17:12:01
8	KEYANG LI	573	C++	2022-01-22 21:43:36
9	Dmitry Lyubshin	606	C++	2023-04-01 11:40:11
10	Damien Lejosne	608	C++	2024-09-29 18:47:21

#	User	Length	Language	Date
1	Matthew Craven	1659	Haskell	2022-01-22 20:50:36

#	User	Length	Language	Date
1	Nihal Shivannagari	922	Java	2022-01-23 00:12:49
2	Duc Huy Nguyen	1005	Java	2022-01-22 20:43:27
3	Warith Rahman	1021	Java	2024-09-25 22:44:31
4	Jacob Magnuson	1061	Java	2022-01-22 20:57:33
5	Crystal Sharpe	1068	Java	2022-01-22 20:24:48
6	Chris Gittings	1085	Java	2022-01-22 21:56:38
7	Ken Zheng	1118	Java	2023-02-03 16:42:43
8	Doug Goodman	1198	Java	2022-01-26 22:23:00
9	Blake Gassman	1233	Java	2022-02-20 01:17:45
10	Suhas T. Nagar	1237	Java	2022-01-22 20:56:58

#	User	Length	Language	Date
1	Christian Cederquist	758	JavaScript (SpiderMonkey)	2023-11-07 23:38:09

#	User	Length	Language	Date
1	Yang Tang	828	Kotlin	2023-06-13 06:16:35
2	Adam Rankin	894	Kotlin	2023-05-11 19:01:46
3	Jacob Huebner	1739	Kotlin	2022-01-22 20:52:18

#	User	Length	Language	Date
1	Andreas Björklund	535	Python 2	2022-01-29 11:34:14

#	User	Length	Language	Date
1	Benjamin Z White	219	Python 3	2023-08-07 21:39:24
2	Hidden user	310	Python 3	2023-08-10 04:58:17
3	Ahmed Chamseddine	329	Python 3	2023-11-06 15:43:33
4	Nicholas Russell Saerang	363	Python 3	2023-10-01 16:03:47
5	Vernon Gutierrez	370	Python 3	2022-10-09 19:34:56
6	Ian Kristona	381	Python 3	2023-09-09 02:22:03
7	Simon Rumle Tarnow	381	Python 3	2022-02-16 11:16:28
8	Shang-En Huang	398	Python 3	2023-01-24 17:36:32
9	Lennart Meyling	411	Python 3	2023-12-01 16:10:38
10	Wernher To	412	Python 3	2024-01-06 20:36:09

#	User	Length	Language	Date
1	Alice Ryhl	1347	Rust	2022-02-11 18:07:26
2	Jonas Ulsnes Jørgensen	1433	Rust	2022-02-11 17:56:38

Solution running time distribution