Problem A
Tree Shopping — Problem Statistics

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Submissions	932
Accepted submissions	379
Submission ratio	40.67%
Authors	366
Full solves [?]	294
Full solve Ratio	80.33%

#	User	Runtime	Language	Date
1	Mirel Cosulschi	0.02 s	C	2024-10-27 12:32:34
2	Don Chew Wei Hong	0.03 s	C	2025-07-03 09:38:55

#	User	Runtime	Language	Date
1	Diana Valdivia	0.07 s	C#	2025-06-21 20:49:06

#	User	Runtime	Language	Date
1	Kenneth Langedal	0.01 s	C++	2021-02-01 16:24:02
2	Hidden user	0.01 s	C++	2021-02-04 15:33:58
3	Hidden user	0.01 s	C++	2022-01-18 04:49:50
4	yc z (zythonc)	0.01 s	C++	2023-01-02 18:27:23
5	Florian ten Napel	0.01 s	C++	2025-01-28 16:38:33
6	Jorge Hernández Palop	0.01 s	C++	2025-03-13 12:25:45
7	Mathias Gernez	0.01 s	C++	2026-02-16 12:32:16
8	Marc Phua	0.02 s	C++	2021-02-07 05:53:59
9	Steven Halim	0.02 s	C++	2021-02-17 03:44:55
10	Guan Yang Ze	0.02 s	C++	2021-02-17 07:06:56

#	User	Runtime	Language	Date
1	Norbert Voelker	0.28 s	Go	2022-01-21 20:26:43

#	User	Runtime	Language	Date
1	Brent Yorgey	0.07 s	Haskell	2021-06-11 16:32:08
2	Udo Stenzel	0.38 s	Haskell	2024-11-28 15:45:19
3	TJ Takei	0.41 s	Haskell	2025-12-02 22:05:03
4	Fabian Mitterwallner	0.61 s	Haskell	2025-02-05 00:08:03

#	User	Runtime	Language	Date
1	Crystal Sharpe	0.09 s	Java	2021-02-07 06:54:05
2	Bjørn Dons	0.15 s	Java	2022-04-14 11:10:22
3	Doug Goodman	0.20 s	Java	2022-01-17 22:54:52
4	Jacob Harris Cryer Kragh	0.23 s	Java	2023-09-29 19:56:22
5	Brent Yorgey	0.29 s	Java	2021-05-28 14:44:03
6	Enzio Kam Hai Hong	0.29 s	Java	2021-08-03 11:50:23
7	Kevin Lim Yong Shen	0.30 s	Java	2022-01-18 07:07:06
8	Alexander Goldstein	0.39 s	Java	2024-09-10 01:39:49
9	Quân Anh	0.45 s	Java	2024-04-25 10:20:48
10	Vu Minh Hieu	0.47 s	Java	2021-11-09 16:23:19

#	User	Runtime	Language	Date
1	Thiago Felipe Bastos da Silva	0.11 s	JavaScript (Node.js)	2023-09-21 23:45:42

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.17 s	JavaScript (SpiderMonkey)	2021-02-01 21:06:20
2	Christian Pilegaard Cederquist	0.43 s	JavaScript (SpiderMonkey)	2023-07-25 00:54:26

#	User	Runtime	Language	Date
1	Hidden user	0.55 s	Julia	2025-04-09 21:14:52
2	Timothy Gaede	1.54 s	Julia	10:18:33

#	User	Runtime	Language	Date
1	Yanmarshus Bachtiar	0.07 s	Python 2	2021-06-01 11:53:27
2	Johan Lyts	0.11 s	Python 2	2021-02-03 14:19:03
3	Sivasankaran D	0.14 s	Python 2	2025-09-24 15:36:30

#	User	Runtime	Language	Date
1	Pål Grønås Drange	0.07 s	Python 3	2025-01-28 13:04:32
2	Simen Sørensen	0.07 s	Python 3	2025-01-29 03:58:39
3	Hidden user	0.08 s	Python 3	2026-02-15 18:00:28
4	Christofer Ohlsson	0.09 s	Python 3	2021-02-01 23:53:02
5	Elias Aronsen	0.09 s	Python 3	2025-02-10 20:13:58
6	Brian Jensvoll-Jørgensen	0.10 s	Python 3	2025-01-28 17:27:15
7	Oskar Haarklou Veileborg	0.11 s	Python 3	2021-02-09 09:03:53
8	Samuel Geary	0.11 s	Python 3	2024-02-02 04:09:56
9	Daniel Rasmussen	0.11 s	Python 3	2025-02-14 15:07:01
10	Jiaming Kong	0.11 s	Python 3	2025-08-08 06:38:09

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-11-25 00:56:00
2	Artur Khuziakhmetov	0.01 s	Rust	2022-07-25 08:12:07
3	Tarjei Landøy	0.01 s	Rust	2025-01-28 22:43:25
4	Jan Inge Sande	0.01 s	Rust	2025-01-29 17:27:16
5	Kristian Elde Johansen	0.01 s	Rust	2025-02-01 15:18:04
6	Ole Magnus	0.01 s	Rust	2025-02-14 22:10:50
7	Ng Tek In	0.02 s	Rust	2022-09-03 18:51:25
8	Taylor South	0.02 s	Rust	2023-12-19 02:13:23
9	Bas Dirks	0.04 s	Rust	2022-02-02 16:10:32

#	User	Length	Language	Date
1	Mirel Cosulschi	1528	C	2024-10-27 12:32:34
2	Don Chew Wei Hong	2019	C	2025-07-03 09:38:55

#	User	Length	Language	Date
1	Diana Valdivia	2497	C#	2025-06-21 20:49:06

#	User	Length	Language	Date
1	Hidden user	427	C++	2022-01-24 08:35:50
2	alexandre dewilde	469	C++	2023-08-13 12:50:01
3	Vu Hoang Kien	473	C++	2022-01-18 06:10:32
4	Frederick Pek	474	C++	2022-01-17 18:12:00
5	Godmar Back	492	C++	2021-10-01 17:34:09
6	Dmitry Lyubshin	493	C++	2023-04-11 21:56:29
7	Ron Ryvchin	496	C++	2022-02-26 20:25:40
8	Marshall D Feng	533	C++	2022-05-16 15:11:49
9	Armen Andreasyan	547	C++	2022-01-16 19:32:27
10	Choi Min Suk	557	C++	2023-05-11 15:53:10

#	User	Length	Language	Date
1	Norbert Voelker	2178	Go	2022-01-21 20:26:43

#	User	Length	Language	Date
1	Udo Stenzel	1651	Haskell	2024-11-28 15:45:19
2	Fabian Mitterwallner	3103	Haskell	2025-02-05 00:08:03
3	TJ Takei	5825	Haskell	2025-12-02 22:05:03
4	Brent Yorgey	8190	Haskell	2021-06-11 16:34:09

#	User	Length	Language	Date
1	Nick Hargrove	904	Java	2023-01-13 04:29:39
2	Win Htet Aung	1046	Java	2024-05-24 10:52:23
3	Ryan Sand	1142	Java	2024-04-07 22:42:50
4	HighOnJuice	1173	Java	2023-01-06 22:11:51
5	Doug Goodman	1268	Java	2022-01-17 22:54:52
6	Alexander Goldstein	1379	Java	2024-09-10 01:39:49
7	Eric Leow Yu Quan	1394	Java	2021-08-08 07:27:20
8	Crystal Sharpe	1444	Java	2021-02-07 06:54:05
9	Ben Blodgett	1553	Java	2024-10-18 17:06:04
10	Christopher Hinton	1640	Java	2024-09-14 23:51:01

#	User	Length	Language	Date
1	Thiago Felipe Bastos da Silva	1121	JavaScript (Node.js)	2023-09-21 23:45:42

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	618	JavaScript (SpiderMonkey)	2021-02-01 21:06:20
2	Christian Pilegaard Cederquist	1753	JavaScript (SpiderMonkey)	2023-07-25 00:54:26

#	User	Length	Language	Date
1	Hidden user	1391	Julia	2025-04-09 21:14:52
2	Timothy Gaede	1583	Julia	10:18:33

#	User	Length	Language	Date
1	Sivasankaran D	890	Python 2	2025-09-24 15:36:30
2	Yanmarshus Bachtiar	1158	Python 2	2021-06-01 11:53:27
3	Johan Lyts	2657	Python 2	2021-02-03 14:19:03

#	User	Length	Language	Date
1	Sebastian Refsnes	240	Python 3	2025-02-11 12:03:34
2	Hidden user	344	Python 3	2025-01-28 13:11:18
3	Thomas Draper	351	Python 3	2024-02-02 03:28:44
4	Isaac Erdman	372	Python 3	2024-02-02 05:43:10
5	Jonathan Dastrup	399	Python 3	2024-10-23 16:58:54
6	Lawry Sorenson	409	Python 3	2023-06-29 21:53:28
7	Caleb Dastrup	416	Python 3	2024-10-18 02:57:41
8	Peter Stauder	418	Python 3	2022-10-19 22:30:00
9	Weiguo Jiang	442	Python 3	2022-07-20 22:37:30
10	Daniel Taylor	454	Python 3	2022-02-04 03:44:35

#	User	Length	Language	Date
1	Artur Khuziakhmetov	1373	Rust	2022-07-25 08:12:07
2	Tarjei Landøy	1408	Rust	2025-01-28 22:36:25
3	Ng Tek In	1559	Rust	2022-09-03 18:51:25
4	Bas Dirks	1619	Rust	2022-02-02 16:10:32
5	Kristian Elde Johansen	1818	Rust	2025-02-01 15:18:04
6	Ole Magnus	2456	Rust	2025-02-14 22:10:50
7	Jan Inge Sande	2918	Rust	2025-01-29 17:27:16
8	Taylor South	4019	Rust	2023-12-19 02:13:23
9	Vincent Lagerros	17493	Rust	2024-11-25 00:56:00

Solution running time distribution