Problem A
What's on the Grille? — Problem Statistics

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Submissions	2550
Accepted submissions	740
Submission ratio	29.02%
Authors	749
Full solves [?]	642
Full solve Ratio	85.71%

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.02 s	C#	2016-03-16 11:01:14
2	Iwan	0.02 s	C#	2016-12-06 14:25:59
3	Doug Goodman	0.02 s	C#	2018-08-25 18:24:12
4	Michael Gulliksen	0.02 s	C#	2019-03-14 18:45:26

#	User	Runtime	Language	Date
1	Nathan Lee	0.00 s	Go	2025-09-25 03:01:34
2	Norbert Voelker	0.08 s	Go	2022-01-18 18:46:05

#	User	Runtime	Language	Date
1	Md Akif Chowdhury	0.00 s	Haskell	2023-07-04 22:59:50
2	Brent Yorgey	0.01 s	Haskell	2019-07-01 00:10:11

#	User	Runtime	Language	Date
1	Ranjith M	0.04 s	Java	2024-08-14 20:05:39
2	Andrew Li	0.04 s	Java	2024-10-20 16:36:26
3	Krish Jindal	0.04 s	Java	2025-10-03 17:12:02
4	Nick Wu	0.05 s	Java	2015-10-31 15:19:42
5	Jenny Liao	0.05 s	Java	2015-10-31 18:59:13
6	Hidden user	0.05 s	Java	2016-03-01 11:11:03
7	Terrence Park	0.05 s	Java	2016-04-01 20:52:56
8	Benjamin Laurence Erickson	0.05 s	Java	2016-10-08 19:56:04
9	Ariana Herbst	0.05 s	Java	2016-10-08 20:01:56
10	Jeffrey Xiao	0.05 s	Java	2016-10-08 20:28:43

#	User	Runtime	Language	Date
1	Gurpartap Singh Bhatti	0.05 s	JavaScript (Node.js)	2019-03-04 02:18:40

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-07-29 19:46:05
2	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2017-06-18 20:23:48

#	User	Runtime	Language	Date
1	Timothy Gaede	0.62 s	Julia	2024-07-30 15:19:03

#	User	Runtime	Language	Date
1	Jacob Huebner	0.14 s	Kotlin	2021-07-02 00:21:00
2	Nicholas Johnson	0.15 s	Kotlin	2021-06-30 04:56:40
3	Philip Lewander	0.20 s	Kotlin	2024-04-11 02:10:06

#	User	Runtime	Language	Date
1	Daniel Arghavani-Badrabad	0.00 s	Lua	2025-10-02 05:46:09

#	User	Runtime	Language	Date
1	Trevor Masters	0.02 s	Python 2	2015-11-02 19:38:59
2	Erik Odenman	0.02 s	Python 2	2016-01-08 01:59:01
3	Nathan Villanueva	0.02 s	Python 2	2017-02-04 00:52:51
4	Hidden user	0.03 s	Python 2	2015-11-08 20:50:02
5	Hans Rusten	0.03 s	Python 2	2015-11-25 13:06:33
6	Kasper Borys	0.03 s	Python 2	2016-10-09 11:12:33
7	Tudor Brindus	0.03 s	Python 2	2016-10-22 02:35:44
8	blue@macacm.org	0.03 s	Python 2	2016-10-26 00:37:53
9	Christofer Ohlsson	0.03 s	Python 2	2016-10-28 16:25:00
10	Zheng Dai	0.03 s	Python 2	2016-11-17 00:15:40

#	User	Runtime	Language	Date
1	Taiju Yamada	0.02 s	Python 3	2016-05-20 03:38:03
2	Fengyang Wang	0.02 s	Python 3	2016-10-08 21:34:11
3	Thomas Vu	0.02 s	Python 3	2016-10-08 22:27:03
4	Robert Nesmith	0.02 s	Python 3	2016-10-08 23:10:29
5	Nathaniel Lahn	0.02 s	Python 3	2016-10-08 23:54:32
6	Amir Kash	0.02 s	Python 3	2016-10-08 23:58:20
7	Godmar Back	0.02 s	Python 3	2016-10-09 04:57:10
8	Frederik Aarup Lauridsen	0.02 s	Python 3	2016-10-16 00:47:59
9	Eric Huynh	0.02 s	Python 3	2016-10-21 04:02:12
10	Brian Bauman	0.02 s	Python 3	2016-10-25 16:33:48

#	User	Runtime	Language	Date
1	Christofer Nolander	0.00 s	Rust	2019-10-20 23:19:24
2	Stephen Downward	0.00 s	Rust	2020-10-30 15:19:23
3	Daniel Anker Hermansen	0.00 s	Rust	2023-10-03 17:48:24

#	User	Length	Language	Date
1	Alex Gajewski	1410	C	2016-04-30 23:13:50
2	Juan Pablo Morales	1664	C	2025-05-04 00:20:18
3	Sheilla Kangwagye	1672	C	2022-10-30 20:33:33
4	Ivan Petrov	1751	C	2019-07-11 10:16:39
5	Jón Steinn Elíasson	1754	C	2017-06-24 20:49:20
6	Abd Ali	1754	C	2018-04-24 01:31:36
7	Dodi Vebri Wicahyo	1754	C	2018-05-05 18:55:39
8	Hidden user	1754	C	2019-10-29 21:47:25
9	Durron Baker	1754	C	2020-04-20 22:36:17
10	Hidden user	1754	C	2021-07-23 07:32:54

#	User	Length	Language	Date
1	Doug Goodman	1839	C#	2018-08-25 18:24:12
2	Michael Gulliksen	2611	C#	2019-03-14 18:45:26
3	Iwan	4372	C#	2016-12-06 14:25:59
4	Andriy Zyevakov	4540	C#	2016-03-16 11:01:14

#	User	Length	Language	Date
1	Zane Yu	715	C++	2018-12-23 09:43:53
2	Herman Karlsson	738	C++	2015-11-21 13:33:19
3	Teikn Smith	852	C++	2023-08-25 01:18:28
4	Thomas Li	890	C++	2021-04-12 01:29:14
5	Howard Cheng	937	C++	2021-07-27 18:04:28
6	Dhruv Patel	957	C++	2022-02-04 20:04:17
7	Jiang Yue	969	C++	2018-04-01 12:02:28
8	Giang Đào	974	C++	2018-09-30 05:18:20
9	Wang Zhi Jian	975	C++	2018-04-02 16:23:52
10	Tabris “Tabris05” O'Five	980	C++	2023-09-26 03:33:54

#	User	Length	Language	Date
1	Nathan Lee	1911	Go	2025-09-25 03:01:34
2	Norbert Voelker	6653	Go	2022-01-18 18:46:05

#	User	Length	Language	Date
1	Md Akif Chowdhury	1315	Haskell	2023-07-04 22:59:50
2	Brent Yorgey	1996	Haskell	2019-07-01 00:10:11

#	User	Length	Language	Date
1	Josh Hompoth	1078	Java	2015-11-04 03:27:45
2	Nathan Leake	1215	Java	2018-02-02 18:04:38
3	Mahmudul Hasan Mithun	1318	Java	2015-11-04 05:37:48
4	Geson Chong	1328	Java	2016-10-08 19:56:38
5	Doug Goodman	1344	Java	2017-10-21 19:40:57
6	Hidden user	1373	Java	2015-11-04 03:40:59
7	Seth Kirby	1379	Java	2015-11-02 18:08:27
8	Adam Fischer	1381	Java	2015-11-01 22:21:56
9	Alexandros Antonorsi	1383	Java	2019-10-16 06:32:14
10	Ashwin Chetty	1451	Java	2016-04-30 19:44:17

#	User	Length	Language	Date
1	Gurpartap Singh Bhatti	2004	JavaScript (Node.js)	2019-03-04 02:18:40

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	673	JavaScript (SpiderMonkey)	2016-07-29 19:46:05
2	Peter Kedemo	936	JavaScript (SpiderMonkey)	2017-06-18 20:23:48

#	User	Length	Language	Date
1	Timothy Gaede	1314	Julia	2024-07-30 15:19:03

#	User	Length	Language	Date
1	Philip Lewander	1267	Kotlin	2024-04-11 02:10:06
2	Jacob Huebner	2075	Kotlin	2021-07-02 00:21:00
3	Nicholas Johnson	2903	Kotlin	2021-06-30 04:56:40

#	User	Length	Language	Date
1	Daniel Arghavani-Badrabad	3130	Lua	2025-10-02 05:46:09

#	User	Length	Language	Date
1	Christofer Ohlsson	652	Python 2	2016-10-28 16:25:00
2	Erik Odenman	784	Python 2	2016-01-08 01:59:01
3	Nathan Villanueva	825	Python 2	2017-02-04 00:52:51
4	Cole Bite	829	Python 2	2017-04-26 00:54:37
5	Daniel Strizhevsky	863	Python 2	2017-06-18 22:58:01
6	Tudor Brindus	873	Python 2	2016-10-22 02:35:44
7	Alex Meed	880	Python 2	2017-06-18 22:14:29
8	Tal Melamed	926	Python 2	2017-11-04 19:06:05
9	Michael Laszlo	935	Python 2	2017-01-03 21:13:29
10	Juliang Li	948	Python 2	2018-02-02 23:42:25

#	User	Length	Language	Date
1	Nicholas Russell Saerang	426	Python 3	2024-04-24 22:43:02
2	Ahmed Chamseddine	428	Python 3	2026-01-10 19:34:56
3	George Zhang	452	Python 3	2023-02-15 23:25:37
4	Asger Hautop Drewsen	479	Python 3	2017-09-21 11:10:38
5	Oskar Haarklou Veileborg	479	Python 3	2017-10-02 12:37:00
6	Christian Lindeström	493	Python 3	2016-10-29 23:54:52
7	Kelly Dance	497	Python 3	2023-06-24 14:37:55
8	Hidden user	500	Python 3	2026-02-27 22:45:28
9	Presley Graham	523	Python 3	2021-02-07 01:48:28
10	Elias Amha	529	Python 3	2021-07-02 00:08:01

#	User	Length	Language	Date
1	Stephen Downward	3390	Rust	2020-10-30 15:19:23
2	Christofer Nolander	4080	Rust	2019-10-20 23:19:24
3	Daniel Anker Hermansen	27319	Rust	2023-10-03 17:48:24

Solution running time distribution