Problem A
Avoidland — Problem Statistics

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Submissions	1716
Accepted submissions	875
Submission ratio	50.99%
Authors	604
Full solves [?]	527
Full solve Ratio	87.25%

#	User	Runtime	Language	Date
1	Alejandro Angeli	0.06 s	C	2016-07-23 19:39:09
2	William Fiset	0.06 s	C	2016-07-23 20:01:54
3	Jesper Öqvist	0.06 s	C	2018-08-21 10:21:57
4	Agis Daniels	0.06 s	C	2022-01-20 14:40:58
5	Hidden user	0.10 s	C	2025-04-12 22:52:33
6	Sanjiv Dinakar	0.21 s	C	2023-05-27 15:42:23
7	Hidden user	0.23 s	C	2023-12-08 18:53:39
8	Daniel Morgan	0.24 s	C	2025-03-10 06:15:20
9	Giang Trương Gia Lạc	0.25 s	C	2021-05-30 17:30:12
10	Ivan Petrov	0.27 s	C	2020-02-12 16:41:49

#	User	Runtime	Language	Date
1	Karim Mammadli	0.59 s	C#	2023-05-02 06:47:37
2	Hau Tran Phuc	1.01 s	C#	2016-09-07 10:06:51
3	Robert Warnestam	1.12 s	C#	2021-04-24 20:46:16

#	User	Runtime	Language	Date
1	Daniel Schemmel	0.04 s	C++	2016-10-03 01:33:57
2	Zac Friggstad	0.05 s	C++	2021-07-23 01:33:59
3	Agis Daniels	0.05 s	C++	2022-01-20 14:43:10
4	Brandon Zhang	0.05 s	C++	2023-04-26 06:02:01
5	Hidden user	0.07 s	C++	2019-01-14 06:06:59
6	Nikita Kiselov	0.17 s	C++	2024-09-14 20:47:07
7	Văn Hợp Bùi	0.18 s	C++	2018-07-26 09:46:37
8	Luke Videckis	0.18 s	C++	2020-11-07 18:15:12
9	Hidden user	0.18 s	C++	2021-05-06 12:59:36
10	Brandon Tang	0.18 s	C++	2022-06-13 08:58:25

#	User	Runtime	Language	Date
1	Norbert Voelker	0.39 s	Go	2021-11-12 00:28:22
2	MARIA JOSE MORALES AVALOS	0.50 s	Go	2025-04-26 04:44:55

#	User	Runtime	Language	Date
1	Fumiaki Takagi	0.30 s	Haskell	2023-02-15 01:05:36
2	Steinar Simonnes	0.47 s	Haskell	2025-06-16 11:46:13

#	User	Runtime	Language	Date
1	Trần Công Duy	0.14 s	Java	2015-11-20 02:44:01
2	Hà Minh Ngọc	0.15 s	Java	2015-11-18 16:20:51
3	Luu Nhat Phi	0.15 s	Java	2015-11-20 02:58:13
4	Tuấn Nguyễn	0.16 s	Java	2016-09-07 10:57:49
5	Tiến Nguyễn	0.18 s	Java	2021-10-27 19:03:52
6	Quyên Phạm	0.20 s	Java	2021-10-30 05:53:33
7	Bjørn Dons	0.21 s	Java	2022-05-21 20:01:09
8	Lin Lê	0.29 s	Java	2021-10-27 19:59:47
9	Dat Vo Nguyen Tien	0.29 s	Java	2021-10-31 06:46:13
10	Dương Đạt	0.31 s	Java	2021-10-29 19:15:39

#	User	Runtime	Language	Date
1	Christian Cederquist	1.58 s	JavaScript (SpiderMonkey)	2023-06-12 09:51:43
2	Bjørn Chr. Soltvedt	1.61 s	JavaScript (SpiderMonkey)	2019-03-17 19:25:34

#	User	Runtime	Language	Date
1	Adam Rankin	1.16 s	Kotlin	2023-10-28 05:57:55
2	Hidden user	1.18 s	Kotlin	2019-12-23 07:24:30
3	Chelsea Hoernemann	1.23 s	Kotlin	2022-11-03 20:46:43

#	User	Runtime	Language	Date
1	Pamidimarri Reshwanth	0.43 s	Objective-C	2020-08-23 05:46:36

#	User	Runtime	Language	Date
1	Matthew Farrell	0.49 s	Python 2	2017-08-23 00:18:43
2	Matias Frank Jensen	0.54 s	Python 2	2018-09-23 10:01:05
3	Alex Loiko	0.54 s	Python 2	2021-10-27 21:35:40
4	Vương Thiện Trung	0.65 s	Python 2	2019-03-01 18:28:12
5	Mathias Mattsson	0.79 s	Python 2	2020-01-31 15:41:44
6	Lars Åström	0.82 s	Python 2	2017-10-10 09:08:52
7	Sigurður Jens Albertsson	0.88 s	Python 2	2018-07-22 14:40:11
8	Hjalti Magnússon	1.24 s	Python 2	2018-07-22 18:40:27
9	Hermon Mulat	1.60 s	Python 2	2017-01-26 23:52:25

#	User	Runtime	Language	Date
1	Jacob Albers	0.42 s	Python 3	2021-11-15 01:46:40
2	Russell Ng	0.44 s	Python 3	2022-07-01 10:15:16
3	Hidden user	0.48 s	Python 3	2023-12-18 17:09:55
4	Connor Colombe	0.49 s	Python 3	2023-12-18 06:44:12
5	Lex Janssens	0.54 s	Python 3	2022-01-06 11:37:52
6	Jayden Pahukula	0.62 s	Python 3	2025-06-02 18:32:10
7	Alex Loiko	0.63 s	Python 3	2021-10-27 21:30:38
8	Sean Lambert	0.67 s	Python 3	2024-09-14 21:24:29
9	Jeffrey Huang	0.71 s	Python 3	2021-11-13 22:41:26
10	Dharanidharan M	0.75 s	Python 3	2025-08-31 05:04:30

#	User	Runtime	Language	Date
1	Thomas Feld	1.59 s	Ruby	2023-05-17 09:42:08

#	User	Runtime	Language	Date
1	Bas Dirks	0.18 s	Rust	2022-06-08 14:09:35
2	Matt Schwartz	0.21 s	Rust	2023-06-29 01:03:24
3	Judith Hemp	0.25 s	Rust	2022-03-20 18:26:28
4	Daniel Anker Hermansen	0.26 s	Rust	2023-09-19 19:54:59

#	User	Runtime	Language	Date
1	Hidden user	1.56 s	Swift	2024-04-04 11:58:36

#	User	Length	Language	Date
1	Christian Blumenthal	508	C	2021-05-30 20:52:31
2	Nick Hargrove	595	C	2022-01-25 08:11:28
3	Hidden user	648	C	2025-04-12 22:49:03
4	Phumipat Pun	649	C	2018-06-15 08:38:47
5	Hidden user	649	C	2023-01-17 13:59:29
6	Demoz Beshah Derbe	874	C	2023-02-08 23:25:33
7	THANISH K	874	C	2025-04-21 20:05:40
8	محمد عباس عبد الامير	875	C	2022-08-17 16:53:53
9	blah blah	879	C	2022-11-11 05:18:06
10	Chris Marlatt	885	C	2023-12-05 23:58:55

#	User	Length	Language	Date
1	Karim Mammadli	1262	C#	2023-05-02 06:47:37
2	Hau Tran Phuc	3444	C#	2016-09-07 10:06:51
3	Robert Warnestam	5078	C#	2021-04-24 20:46:16

#	User	Length	Language	Date
1	Way Tan	289	C++	2018-12-30 14:17:51
2	Johan Wind	308	C++	2015-09-25 02:51:24
3	William Gan	321	C++	2018-04-24 16:15:30
4	Zhongnian Tao	323	C++	2021-11-13 20:06:15
5	David Venhoek	364	C++	2016-02-04 10:11:31
6	Hugo Eberhard	364	C++	2016-09-26 21:53:53
7	Leo Lee	364	C++	2023-04-27 20:24:41
8	Rene Josiah M. Quinto	367	C++	2017-09-16 07:10:44
9	Rafael Herman	372	C++	2018-02-07 10:03:44
10	Hoàng Việt Hưng	380	C++	2024-09-01 18:17:36

#	User	Length	Language	Date
1	Norbert Voelker	1178	Go	2021-11-12 00:28:22
2	MARIA JOSE MORALES AVALOS	2005	Go	2025-04-26 04:44:55

#	User	Length	Language	Date
1	Steinar Simonnes	1152	Haskell	2025-06-16 11:50:34
2	Fumiaki Takagi	1973	Haskell	2023-02-15 01:05:36

#	User	Length	Language	Date
1	Sơn Phạm Huỳnh	546	Java	2018-07-09 05:23:06
2	Zimu Qin	569	Java	2015-07-15 14:28:31
3	Shawn Hatchwell	679	Java	2017-02-03 20:44:46
4	Micah Stairs	712	Java	2015-10-24 19:43:20
5	Sam Zheng	720	Java	2021-11-13 21:49:43
6	Crystal Sharpe	725	Java	2020-09-07 06:30:32
7	Eroui Abdelaziz	731	Java	2016-08-03 01:18:13
8	Robert Slutsky	731	Java	2017-01-25 18:45:32
9	Paul Boddington	754	Java	2016-04-17 03:36:59
10	Hidden user	764	Java	2018-12-22 03:02:54

#	User	Length	Language	Date
1	Christian Cederquist	536	JavaScript (SpiderMonkey)	2023-06-12 09:51:43
2	Bjørn Chr. Soltvedt	615	JavaScript (SpiderMonkey)	2019-03-17 19:25:34

#	User	Length	Language	Date
1	Hidden user	854	Kotlin	2019-12-23 07:24:30
2	Adam Rankin	963	Kotlin	2023-10-28 05:57:55
3	Chelsea Hoernemann	1778	Kotlin	2022-11-03 20:46:43

#	User	Length	Language	Date
1	Pamidimarri Reshwanth	915	Objective-C	2020-08-23 05:46:36

#	User	Length	Language	Date
1	Lars Åström	240	Python 2	2017-10-10 09:08:52
2	Alex Loiko	288	Python 2	2021-10-27 21:35:40
3	Sigurður Jens Albertsson	306	Python 2	2018-07-22 14:40:11
4	Hjalti Magnússon	314	Python 2	2018-07-22 18:40:27
5	Mathias Mattsson	392	Python 2	2020-01-31 15:41:44
6	Hermon Mulat	451	Python 2	2017-01-26 23:52:25
7	Vương Thiện Trung	589	Python 2	2019-03-01 18:28:12
8	Matthew Farrell	647	Python 2	2017-08-23 00:18:43
9	Matias Frank Jensen	798	Python 2	2018-09-23 10:01:05

#	User	Length	Language	Date
1	Benjamin Z White	127	Python 3	2023-08-22 11:12:38
2	Peter Stauder	163	Python 3	2023-01-17 21:21:25
3	Ahmed Chamseddine	199	Python 3	2025-01-09 17:27:01
4	Andreas Björklund	208	Python 3	2023-04-08 20:04:16
5	Hrant Hovhannisyan	221	Python 3	2025-07-03 10:32:28
6	Frederick Ivan Tan	229	Python 3	2023-01-29 14:35:07
7	Tam Keng Hong	233	Python 3	2024-04-17 19:47:44
8	Bill Jin	238	Python 3	2025-03-09 20:10:50
9	Alex Loiko	245	Python 3	2021-10-27 21:34:16
10	Kevin Yang	246	Python 3	2025-03-09 04:51:03

#	User	Length	Language	Date
1	Thomas Feld	101	Ruby	2023-05-17 09:42:08

#	User	Length	Language	Date
1	Bas Dirks	760	Rust	2022-06-08 14:10:30
2	Matt Schwartz	1395	Rust	2023-06-29 01:03:24
3	Judith Hemp	1464	Rust	2022-03-20 18:26:28
4	Daniel Anker Hermansen	26582	Rust	2023-09-19 19:54:59

#	User	Length	Language	Date
1	Hidden user	351	Swift	2024-04-04 11:55:20

Solution running time distribution