Problem I
Covered Walkway — Problem Statistics

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Submissions	2499
Accepted submissions	785
Submission ratio	31.41%
Authors	664
Full solves [?]	507
Full solve Ratio	76.36%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.15 s	C	2019-07-12 08:54:32

#	User	Runtime	Language	Date
1	Ashley Khoo	0.05 s	C++	2019-04-02 07:27:26
2	Brandon Zhang	0.05 s	C++	2023-11-28 09:50:27
3	Tan Chee Heng	0.06 s	C++	2018-08-10 05:58:16
4	Jialin Ouyang	0.06 s	C++	2019-11-17 12:31:35
5	Moses Mayer	0.06 s	C++	2020-12-24 01:33:40
6	Kevin Liu	0.08 s	C++	2016-05-08 03:36:10
7	Prashant Chaudhary	0.10 s	C++	2020-03-27 07:15:42
8	Ragur Krishnan	0.11 s	C++	2019-02-19 23:42:20
9	Jason Tedjosoesilo	0.11 s	C++	2019-04-30 22:03:05
10	Samuel Eduardo da Silva	0.11 s	C++	2019-05-14 01:55:52

#	User	Runtime	Language	Date
1	Joshua Kirstein	0.14 s	Java	2016-10-31 19:44:05
2	William Brigham	0.19 s	Java	2018-01-30 05:02:51
3	鹿目圆	0.27 s	Java	2019-01-17 10:23:09
4	Jonathan Uy	0.33 s	Java	2020-10-19 09:56:06
5	Joshua Linge	0.34 s	Java	2016-10-20 15:11:21
6	Finn Lidbetter	0.34 s	Java	2017-02-24 20:36:44
7	He Tong	0.34 s	Java	2021-09-19 16:32:02
8	Terrence Park	0.35 s	Java	2018-12-23 06:42:11
9	Benjamin Reidys	0.38 s	Java	2018-11-08 17:37:43
10	Gabriel Pita	0.39 s	Java	2016-07-06 19:16:44

#	User	Runtime	Language	Date
1	Hidden user	0.20 s	Pascal	2017-06-02 14:10:38
2	Eduard Gankin	0.21 s	Pascal	2017-06-02 15:15:45
3	Alexandrs Zayakins	0.22 s	Pascal	2017-06-02 15:31:22
4	Vladimir Shchigolev	0.23 s	Pascal	2017-06-02 17:37:22
5	Phuc Nguyen Dinh Hoang	0.28 s	Pascal	2017-10-26 05:20:47

#	User	Runtime	Language	Date
1	Nicholas Russell Saerang	0.42 s	Python 3	2025-02-08 00:04:00
2	Iman Khodadi	0.55 s	Python 3	2024-07-11 08:43:57
3	Bùi Việt Dũng	0.63 s	Python 3	2022-04-23 07:36:25
4	Andreas Björklund	0.76 s	Python 3	2023-04-11 18:08:10
5	Erik Amirell Eklöf	0.78 s	Python 3	2022-12-15 18:14:11
6	Rumman Mahmud	1.59 s	Python 3	2025-06-20 16:16:13

#	User	Length	Language	Date
1	Ivan Petrov	1685	C	2019-07-12 08:54:32

#	User	Length	Language	Date
1	Shusuke Fuji	758	C++	2019-04-14 16:53:37
2	Vedant Kumud	770	C++	2020-12-05 09:06:33
3	Gustavo Leal	795	C++	2019-08-31 16:54:13
4	Krit Suwanpaiboon	803	C++	2022-04-21 10:03:14
5	Raitis Kriķis	804	C++	2017-06-02 15:51:00
6	Golu Kumar	806	C++	2020-05-16 08:58:03
7	Jaagup Tamme	809	C++	2020-04-02 17:44:19
8	Hyunjun Lee	824	C++	2023-03-17 08:04:00
9	EnYu Jenp	829	C++	2019-06-08 00:33:25
10	Deniz Stone	837	C++	2022-11-05 14:42:16

#	User	Length	Language	Date
1	Борислав Семерджиев	1245	Java	2018-11-02 17:34:42
2	Sagar Gupta	1421	Java	2020-06-17 16:58:17
3	Jonathan Uy	1502	Java	2020-10-19 09:56:06
4	Harsha Harish	1715	Java	2019-07-23 18:59:02
5	Ray Bai	1721	Java	2020-12-09 21:58:30
6	Suraj Singireddy	1816	Java	2019-10-01 22:12:18
7	Hidden user	1896	Java	2022-07-03 22:08:26
8	He Tong	1905	Java	2021-09-19 16:32:02
9	Naresh	1977	Java	2024-12-19 19:14:58
10	Daniel West	2307	Java	2021-01-04 08:54:13

#	User	Length	Language	Date
1	Eduard Gankin	1500	Pascal	2017-06-02 15:15:45
2	Vladimir Shchigolev	1549	Pascal	2017-06-02 17:37:22
3	Alexandrs Zayakins	2133	Pascal	2017-06-02 15:31:22
4	Hidden user	2242	Pascal	2017-06-02 14:10:38
5	Phuc Nguyen Dinh Hoang	2242	Pascal	2017-10-26 05:20:47

#	User	Length	Language	Date
1	Nicholas Russell Saerang	462	Python 3	2024-06-17 17:15:22
2	Iman Khodadi	710	Python 3	2024-07-11 08:43:57
3	Andreas Björklund	747	Python 3	2023-04-11 18:08:10
4	Erik Amirell Eklöf	1154	Python 3	2022-12-15 18:14:11
5	Rumman Mahmud	1257	Python 3	2025-06-20 16:16:13
6	Bùi Việt Dũng	1410	Python 3	2022-04-22 06:10:38

Solution running time distribution