Problem A
Safe Passage — Problem Statistics

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Submissions	1918
Accepted submissions	780
Submission ratio	40.67%
Authors	825
Accepted authors	619
Author ratio	75.03%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.01 s	Bash	2023-10-19 18:05:47

#	User	Runtime	Language	Date
1	Tomáš Drtina	0.00 s	C	2015-10-03 22:22:14
2	Feng Jiang	0.00 s	C	2015-10-04 06:33:26
3	Dan Anderson	0.00 s	C	2017-02-21 21:53:20
4	Yifan Xu	0.00 s	C	2017-12-29 22:25:47
5	Pim Heeman	0.00 s	C	2020-05-06 11:05:03
6	Ibrahim Younas, Mr	0.00 s	C	2023-10-21 17:06:33
7	Ivan Petrov	0.14 s	C	2019-10-08 11:30:42

#	User	Runtime	Language	Date
1	Kalyan Balla	0.02 s	C#	2015-11-10 21:26:22
2	Krzysiek Staszak	0.02 s	C#	2015-11-19 22:21:22
3	Ilia Volkov	0.29 s	C#	2016-10-16 08:55:13

#	User	Runtime	Language	Date
1	Huaiyu Wu	0.05 s	Java	2015-10-03 18:21:03
2	Joshua Alman	0.05 s	Java	2015-10-03 20:42:01
3	Petr Ryšavý	0.05 s	Java	2015-10-03 21:15:51
4	Mason Liu	0.05 s	Java	2015-10-03 22:33:59
5	Nathaniel Shapiro	0.05 s	Java	2015-10-04 03:11:55
6	Kevin Tian	0.05 s	Java	2015-10-04 04:53:30
7	Nick Wu	0.05 s	Java	2015-10-05 11:36:06
8	Eric Andow	0.05 s	Java	2015-10-23 04:56:10
9	Eskil Jarlskog	0.05 s	Java	2016-01-26 22:22:31
10	Fredrik Persson	0.05 s	Java	2016-02-14 15:26:58

#	User	Runtime	Language	Date
1	Christian Cederquist	0.29 s	JavaScript (SpiderMonkey)	2024-10-02 06:15:55

#	User	Runtime	Language	Date
1	Jacob Huebner	0.28 s	Kotlin	2022-01-12 05:13:17

#	User	Runtime	Language	Date
1	Jim Zhang	0.02 s	Python 3	2015-10-10 07:07:42
2	Vladimir Kochanov	0.02 s	Python 3	2016-03-30 04:50:24
3	Joshua Zygmunt	0.02 s	Python 3	2016-06-28 09:28:53
4	Sebastian Hjelm	0.02 s	Python 3	2016-10-12 11:06:23
5	Michael Laszlo	0.02 s	Python 3	2016-10-14 02:59:02
6	Ali N Salman	0.02 s	Python 3	2016-10-15 22:12:02
7	Jaime Castro Retamal	0.02 s	Python 3	2016-10-17 05:13:55
8	Philip Ritchey	0.02 s	Python 3	2017-02-18 18:19:57
9	Ciara Godwin	0.02 s	Python 3	2017-03-15 20:58:00
10	Cian Ruane	0.02 s	Python 3	2017-03-18 17:14:09

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-05-11 12:15:09

#	User	Runtime	Language	Date
1	Bruno Chevalier	0.00 s	Rust	2025-02-13 08:59:02
2	Vincent Lagerros	0.00 s	Rust	2025-03-06 21:26:51
3	Constantijn Dekker	0.01 s	Rust	2021-05-21 10:24:46
4	Nathan Koppel	0.03 s	Rust	2022-03-17 02:55:34

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-02-03 10:56:04

#	User	Length	Language	Date
1	Feng Jiang	641	C	2015-10-04 06:43:00
2	Dan Anderson	692	C	2017-02-21 21:53:20
3	Tomáš Drtina	774	C	2015-10-03 22:22:14
4	Pim Heeman	851	C	2020-05-06 11:05:03
5	Ibrahim Younas, Mr	855	C	2023-10-21 17:06:33
6	Yifan Xu	1203	C	2017-12-29 22:25:47
7	Ivan Petrov	1519	C	2019-10-08 11:30:42

#	User	Length	Language	Date
1	Krzysiek Staszak	1040	C#	2015-11-19 22:41:09
2	Kalyan Balla	2633	C#	2015-11-10 21:26:22
3	Ilia Volkov	6277	C#	2016-10-16 08:55:13

#	User	Length	Language	Date
1	Thiên Tài Zero	312	C++	2016-11-22 06:49:15
2	Aryan Chaturvedi	353	C++	2023-10-20 19:24:30
3	Zane Yu	359	C++	2019-02-04 04:08:25
4	Victor Colombo	371	C++	2015-10-03 20:46:24
5	Hong Tang Vo	371	C++	2016-11-21 13:39:00
6	Hongbo Zhang	377	C++	2015-10-03 22:33:19
7	Marie Li Chionis	390	C++	2024-11-10 00:09:15
8	Yuanhao Wei	394	C++	2016-09-17 21:49:52
9	Abd-El-Aziz Zayed	397	C++	2023-10-21 05:01:58
10	Imax Blue	407	C++	2017-01-25 12:46:03

#	User	Length	Language	Date
1	Simon Boerwinkle	589	Java	2015-10-20 05:51:46
2	Andrew Liske	690	Java	2017-01-25 04:24:05
3	Joshua Alman	709	Java	2015-10-03 20:42:01
4	Alex Li	726	Java	2019-05-06 06:14:40
5	Darko Aleksic	756	Java	2015-10-03 22:16:58
6	Constandinos Demetriou	770	Java	2019-06-29 22:57:04
7	Quinn Minnich	820	Java	2017-03-11 16:58:00
8	Michael LoPiccolo	875	Java	2015-10-03 19:44:32
9	Brendan Cao	898	Java	2024-11-07 02:44:39
10	Darrin Wiley	913	Java	2015-10-03 19:27:55

#	User	Length	Language	Date
1	Christian Cederquist	1226	JavaScript (SpiderMonkey)	2024-10-02 06:15:55

#	User	Length	Language	Date
1	Jacob Huebner	1640	Kotlin	2022-01-12 05:13:17

#	User	Length	Language	Date
1	Benjamin Z White	122	Python 3	2023-06-28 20:03:12
2	Simon Reid	148	Python 3	2022-11-13 06:28:12
3	Hidden user	181	Python 3	2023-05-19 04:14:23
4	Ahmed Chamseddine	198	Python 3	2024-01-03 16:46:01
5	Noah Hessen Bjerke	202	Python 3	2023-11-17 11:22:22
6	Iman Khodadi	222	Python 3	2024-08-12 09:54:50
7	Nicholas Russell Saerang	224	Python 3	2024-04-27 14:54:41
8	Sander Oppen	241	Python 3	2023-11-14 11:25:52
9	Hrant Hovhannisyan	248	Python 3	2025-03-03 09:51:11
10	Hidden user	250	Python 3	2024-05-01 20:25:22

#	User	Length	Language	Date
1	Thomas Feld	80	Ruby	2023-08-29 14:51:23

#	User	Length	Language	Date
1	Vincent Lagerros	474	Rust	2025-03-06 21:26:51
2	Nathan Koppel	1977	Rust	2022-03-17 02:55:34
3	Constantijn Dekker	2194	Rust	2021-05-21 10:24:46
4	Bruno Chevalier	6861	Rust	2025-02-13 08:59:02

Solution running time distribution