Problem A
Gopher II — Problem Statistics

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Submissions	8643
Accepted submissions	1913
Submission ratio	22.13%
Authors	1403
Full solves [?]	1181
Full solve Ratio	84.18%

#	User	Runtime	Language	Date
1	Alexander Bilde Pedersen	0.01 s	C	2024-10-01 09:00:33
2	Jinghao ZENG	0.01 s	C	2024-11-26 18:28:04
3	Ioannis Br	0.01 s	C	2024-12-04 20:43:25
4	Kim DongJoo	0.01 s	C	2025-12-03 04:52:40
5	Alex Yao	0.03 s	C	2016-03-16 07:30:02
6	Serban Iorga	0.03 s	C	2018-10-20 16:36:31

#	User	Runtime	Language	Date
1	Andrzej Krajniak	0.04 s	C#	2016-10-13 20:28:01
2	Jayant Notani	0.04 s	C#	2020-04-12 06:54:28
3	Marek	0.05 s	C#	2016-10-13 20:02:13
4	Peter Løffmann	0.07 s	C#	2022-10-23 23:06:36
5	Hallvard Braaten	0.12 s	C#	2017-03-24 17:52:35
6	Laurits Kure	0.20 s	C#	2024-10-09 13:38:11
7	Soren	0.25 s	C#	2024-10-21 11:20:47
8	Nathan Andrews	0.53 s	C#	2024-11-12 22:09:29

#	User	Runtime	Language	Date
1	Teikn Smith	0.00 s	C++	2022-06-23 20:00:32
2	Zhang Jikun	0.00 s	C++	2023-03-04 22:11:53
3	Hidden user	0.00 s	C++	2023-08-03 11:11:48
4	Markus Mathiasen	0.00 s	C++	2023-08-11 16:45:30
5	ScriptKidd	0.00 s	C++	2024-08-02 14:08:57
6	Santiago de la Torre	0.00 s	C++	2024-08-17 18:00:10
7	Lawry Sorenson	0.00 s	C++	2025-01-28 22:16:53
8	Ian González	0.00 s	C++	2025-02-22 18:21:52
9	janY	0.00 s	C++	2025-12-02 15:39:17
10	Hidden user	0.01 s	C++	2013-03-05 14:24:45

#	User	Runtime	Language	Date
1	Leonora Andrea Lindqvist Nielsen	0.02 s	Go	2023-10-17 15:01:50
2	Michael Rubinstein	0.02 s	Go	2025-11-11 16:45:23
3	Nathan Lee	0.03 s	Go	2025-11-13 17:40:48
4	Aleksander Jan Mistewicz	0.05 s	Go	2019-05-16 18:45:45
5	Line Dejgaard	0.07 s	Go	2023-10-11 20:02:00

#	User	Runtime	Language	Date
1	Oskar Segersvärd	0.08 s	Haskell	2014-10-22 17:52:06

#	User	Runtime	Language	Date
1	Bjørn Dons	0.10 s	Java	2023-04-22 18:13:04
2	Samuel Klingström	0.12 s	Java	2017-08-15 14:44:27
3	Jan Štola	0.13 s	Java	2015-06-17 18:42:09
4	Martijn Muijsers	0.13 s	Java	2016-11-08 00:36:49
5	William Fiset	0.13 s	Java	2017-06-29 01:41:34
6	Erik Odenman	0.14 s	Java	2013-03-05 14:52:33
7	Mehdi Maick	0.14 s	Java	2017-05-03 23:22:30
8	Daniel Hollsten	0.15 s	Java	2014-10-21 14:36:55
9	Carl Eriksson	0.15 s	Java	2014-10-21 19:22:46
10	Patrik Hörnqvist	0.15 s	Java	2015-06-26 12:41:17

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	JavaScript (SpiderMonkey)	2014-10-21 16:30:27
2	Hidden user	0.06 s	JavaScript (SpiderMonkey)	2014-10-19 19:19:06
3	Bjørn Chr. Soltvedt	0.08 s	JavaScript (SpiderMonkey)	2025-06-21 16:09:40
4	Christian Pilegaard Cederquist	0.11 s	JavaScript (SpiderMonkey)	2023-07-05 17:32:10

#	User	Runtime	Language	Date
1	Caleb Austin	0.06 s	Lua	2024-11-17 05:59:31

#	User	Runtime	Language	Date
1	Steven Tran	0.12 s	Python 2	2018-04-08 16:02:42
2	Hidden user	0.12 s	Python 2	2018-04-15 06:06:52
3	Juliang Li	0.13 s	Python 2	2018-04-08 22:12:12
4	Andreas Serra	0.18 s	Python 2	2014-03-04 23:59:07
5	Grant Ballard	0.20 s	Python 2	2019-04-10 22:33:20
6	Maj Stenmark	0.23 s	Python 2	2019-10-01 13:57:22
7	Andreas Björklund	0.26 s	Python 2	2020-11-15 10:27:14
8	Tyler Durden	0.47 s	Python 2	2018-04-09 18:15:15

#	User	Runtime	Language	Date
1	Hidden user	0.08 s	Python 3	2025-11-22 06:22:30
2	logs two	0.09 s	Python 3	2025-09-21 04:54:33
3	Russell	0.09 s	Python 3	2025-09-21 12:28:08
4	Hidden user	0.09 s	Python 3	2026-02-14 11:32:26
5	UTM CS AI	0.10 s	Python 3	2024-10-02 19:30:17
6	Boyan Karakostov	0.10 s	Python 3	2025-04-10 17:19:56
7	Michelle Mariam	0.10 s	Python 3	2025-06-13 09:29:24
8	Jiaming Kong	0.10 s	Python 3	2025-07-29 11:45:54
9	김태현	0.10 s	Python 3	2025-12-01 06:30:48
10	황종서/AI·소프트웨어학부(소프트웨어전공)	0.10 s	Python 3	2025-12-03 01:33:04

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-12-01 03:20:04
2	Zane Johnson	0.01 s	Rust	2022-12-14 19:31:05
3	Daniel Liland	0.01 s	Rust	2023-05-02 17:17:38
4	Hidden user	0.02 s	Rust	2019-03-17 12:43:06
5	Hidden user	0.03 s	Rust	2019-03-17 12:21:56
6	Mckinley Xie	0.03 s	Rust	2025-04-07 21:58:53
7	Rolf Martin Glomsrud	0.05 s	Rust	2023-05-02 21:10:21
8	Otakar Hirs	0.10 s	Rust	2023-04-26 16:22:13
9	Jonas Ulsnes Jørgensen	0.11 s	Rust	2024-10-21 14:05:40

#	User	Length	Language	Date
1	Kim DongJoo	1573	C	2025-12-03 04:52:40
2	Alex Yao	1578	C	2016-03-16 07:30:02
3	Serban Iorga	1578	C	2018-10-20 16:36:31
4	Jinghao ZENG	1635	C	2024-11-26 18:28:04
5	Ioannis Br	2792	C	2024-12-04 20:43:25
6	Alexander Bilde Pedersen	15362	C	2024-10-01 09:00:33

#	User	Length	Language	Date
1	Peter Løffmann	2568	C#	2022-10-23 23:06:36
2	Hallvard Braaten	2849	C#	2017-03-24 17:52:35
3	Jayant Notani	3395	C#	2020-04-12 06:54:28
4	Nathan Andrews	3792	C#	2024-11-12 22:09:29
5	Soren	5264	C#	2024-10-21 11:20:47
6	Marek	6875	C#	2016-10-13 20:02:13
7	Laurits Kure	10714	C#	2024-10-09 13:38:11
8	Andrzej Krajniak	10809	C#	2016-10-13 20:28:01

#	User	Length	Language	Date
1	THAN E	860	C++	2024-11-24 15:52:15
2	Govind Venugopalan	930	C++	2017-03-09 04:27:28
3	Si Jun Ke	940	C++	2016-03-12 16:35:32
4	Montgomery Bohde	974	C++	2024-04-06 06:02:07
5	Abdelmaged Nour	977	C++	2022-03-23 01:29:33
6	Gb Sir	1002	C++	2022-04-22 10:12:26
7	Arman “hulm” Issayev	1008	C++	2024-06-22 12:34:07
8	Kiên Nguyễn Tiến Trung	1010	C++	2017-03-15 07:05:39
9	ty z	1031	C++	2024-11-27 17:25:00
10	Johan Wind	1061	C++	2018-05-09 01:27:11

#	User	Length	Language	Date
1	Michael Rubinstein	2362	Go	2025-11-11 16:38:06
2	Aleksander Jan Mistewicz	2462	Go	2019-05-16 18:48:17
3	Nathan Lee	4066	Go	2025-11-13 17:40:48
4	Leonora Andrea Lindqvist Nielsen	4649	Go	2023-10-17 15:01:50
5	Line Dejgaard	7913	Go	2023-10-11 20:02:00

#	User	Length	Language	Date
1	Oskar Segersvärd	8817	Haskell	2014-10-22 17:52:06

#	User	Length	Language	Date
1	Doug Goodman	1272	Java	2017-12-11 14:02:32
2	Quan Chau	1706	Java	2017-08-23 20:09:57
3	Teddy Hartanto	2007	Java	2016-03-13 12:30:15
4	Jesper Kronborg Rusbjerg	2126	Java	2021-10-09 14:33:22
5	Kevin Dai	2165	Java	2024-04-13 08:09:57
6	Axel	2175	Java	2021-04-11 02:59:04
7	Daniel Hollsten	2287	Java	2014-10-21 14:36:55
8	John Kevin Tjahjadi	2409	Java	2016-03-16 06:27:31
9	Carl Eriksson	2418	Java	2014-10-21 19:22:46
10	Alyssa Lawton	2420	Java	2022-02-20 12:29:06

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	1240	JavaScript (SpiderMonkey)	2025-06-21 16:09:40
2	Hidden user	1606	JavaScript (SpiderMonkey)	2014-10-21 16:30:27
3	Hidden user	3439	JavaScript (SpiderMonkey)	2014-10-19 19:19:06
4	Christian Pilegaard Cederquist	6604	JavaScript (SpiderMonkey)	2023-07-05 17:32:10

#	User	Length	Language	Date
1	Caleb Austin	1858	Lua	2024-11-17 05:59:31

#	User	Length	Language	Date
1	Juliang Li	1102	Python 2	2018-04-08 22:12:12
2	Steven Tran	1183	Python 2	2018-04-08 16:02:42
3	Hidden user	1352	Python 2	2018-04-15 06:06:52
4	Maj Stenmark	2331	Python 2	2019-10-01 13:57:22
5	Grant Ballard	2650	Python 2	2019-04-10 22:33:20
6	Andreas Björklund	2818	Python 2	2020-11-15 10:27:14
7	Tyler Durden	3065	Python 2	2018-04-09 18:15:15
8	Andreas Serra	3251	Python 2	2014-03-04 23:59:07

#	User	Length	Language	Date
1	Simon Andersen	488	Python 3	2023-04-16 16:32:39
2	Magnus Hokland Hegdahl	644	Python 3	2023-04-09 21:25:31
3	Daniel Bogorad	818	Python 3	2025-10-17 05:58:34
4	hithere1431	962	Python 3	2021-04-07 06:10:35
5	Huy Nguyen	962	Python 3	2021-04-07 06:27:25
6	Howard Mah	977	Python 3	2023-04-14 09:41:29
7	Vyom Gupta	978	Python 3	2023-04-16 04:06:14
8	Hidden user	990	Python 3	2024-04-14 05:57:03
9	Linh B. Ngo	991	Python 3	2024-04-16 03:54:27
10	Anooj Shah	1004	Python 3	2020-04-11 21:56:08

#	User	Length	Language	Date
1	Zane Johnson	2818	Rust	2022-12-14 19:31:05
2	Jonas Ulsnes Jørgensen	2967	Rust	2024-10-21 14:05:40
3	Rolf Martin Glomsrud	3589	Rust	2023-05-02 20:43:46
4	Daniel Liland	3822	Rust	2023-05-02 17:17:38
5	Mckinley Xie	3835	Rust	2025-04-07 21:58:53
6	Otakar Hirs	7057	Rust	2023-04-26 16:22:13
7	Hidden user	16607	Rust	2019-03-17 12:26:30
8	Hidden user	16956	Rust	2019-03-17 12:38:32
9	Vincent Lagerros	20494	Rust	2024-12-01 03:20:04

Solution running time distribution