Problem A
Moving Day — Problem Statistics

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Submissions	2568
Accepted submissions	933
Submission ratio	36.33%
Authors	965
Accepted authors	813
Author ratio	84.25%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.07 s	Bash	2023-12-19 14:53:36

#	User	Runtime	Language	Date
1	Jón Steinn Elíasson	0.00 s	C	2020-03-15 01:07:38
2	Hidden user	0.00 s	C	2020-04-26 00:41:52
3	Rupali Sinha	0.00 s	C	2020-08-24 07:29:07
4	Sambit Palit	0.00 s	C	2020-10-11 07:02:40
5	Bergur Snorrason	0.00 s	C	2020-10-15 15:01:53
6	Eyleifur Bjarkason	0.00 s	C	2020-10-27 18:08:18
7	Anton Johansson	0.00 s	C	2022-11-22 21:16:01
8	David Van Nguyen	0.00 s	C	2024-07-11 00:31:31

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	C#	2019-09-19 18:31:20
2	Jan Matthiessen	0.02 s	C#	2020-07-19 19:47:02
3	Mikael Fiala-Lundström	0.02 s	C#	2022-02-08 23:08:32
4	traxex	0.04 s	C#	2024-05-27 09:03:14
5	Գոռ Բաղդասարյան	0.05 s	C#	2025-03-14 09:21:03
6	Umar Rasyid	0.05 s	C#	2025-07-01 05:24:27

#	User	Runtime	Language	Date
1	Leslie Yip	0.00 s	COBOL	2022-10-03 14:24:02

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.05 s	F#	2023-01-07 14:41:35

#	User	Runtime	Language	Date
1	Nischal Bhandari	0.00 s	Go	2025-05-16 22:56:08
2	Markus Hansson	0.02 s	Go	2022-11-01 16:57:00
3	Silas Ulander	0.02 s	Go	2022-11-03 11:29:46
4	Wei Guo	0.02 s	Go	2022-11-07 09:46:41
5	Hidden user	0.08 s	Go	2020-03-21 20:39:17
6	Norbert Voelker	0.08 s	Go	2021-08-30 11:49:02

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Haskell	2023-01-21 12:14:17
2	Steinar Simonnes	0.00 s	Haskell	2024-07-28 20:53:17
3	Brent Yorgey	0.01 s	Haskell	2019-09-28 19:58:57
4	Hidden user	0.01 s	Haskell	2019-10-25 15:56:28

#	User	Runtime	Language	Date
1	Ranjith M	0.04 s	Java	2025-02-14 00:13:46
2	Theodoric Keith Lim	0.06 s	Java	2020-06-18 15:09:35
3	Nathan Nguyen	0.06 s	Java	2020-07-15 23:01:54
4	Rohith Kumar	0.06 s	Java	2020-07-23 13:49:29
5	Samuel Klingström	0.06 s	Java	2020-07-28 20:49:32
6	Sunny Guan	0.06 s	Java	2020-09-19 19:18:45
7	Niclas Søgaard Hjortkjær	0.06 s	Java	2021-02-21 16:07:16
8	Mariann Løtvedt	0.06 s	Java	2022-06-22 18:51:52
9	Sven Rönnbäck	0.06 s	Java	2023-02-18 22:04:41
10	Hidden user	0.08 s	Java	2018-09-17 20:31:35

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	JavaScript (Node.js)	2019-06-24 22:10:34
2	Hidden user	0.05 s	JavaScript (Node.js)	2024-11-09 21:59:40
3	Alexandru Chivescu	0.42 s	JavaScript (Node.js)	2020-04-04 19:42:32
4	Ben Neiswander	0.42 s	JavaScript (Node.js)	2020-08-15 04:03:13
5	Howard Tin Chi Chan	0.42 s	JavaScript (Node.js)	2021-02-05 19:12:22
6	Bas Dirks	0.42 s	JavaScript (Node.js)	2022-01-19 16:08:00

#	User	Runtime	Language	Date
1	Christian Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-02-11 08:40:18
2	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2019-11-02 21:12:53
3	Hidden user	0.03 s	JavaScript (SpiderMonkey)	2019-11-14 05:24:39

#	User	Runtime	Language	Date
1	Timothy Gaede	0.59 s	Julia	2024-05-03 07:14:02
2	Danny Robinson	0.69 s	Julia	2023-11-19 06:54:44

#	User	Runtime	Language	Date
1	Hidden user	0.13 s	Kotlin	2020-09-19 19:16:38
2	Hidden user	0.18 s	Kotlin	2019-12-25 14:43:50
3	Phường Lên	0.19 s	Kotlin	2019-12-25 02:42:35
4	Adam Rankin	0.19 s	Kotlin	2023-09-09 03:39:51
5	Neil Harmon	0.20 s	Kotlin	2019-10-17 11:28:52
6	Troy Warmboe	0.24 s	Kotlin	2020-03-06 02:57:48

#	User	Runtime	Language	Date
1	Zeheng Li	0.00 s	Lua	2024-01-19 19:00:09

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2020-01-05 09:44:01

#	User	Runtime	Language	Date
1	Susanne Ragnemalm	0.01 s	PHP	2020-03-18 00:51:40
2	Akbar Saputra	0.01 s	PHP	2023-09-12 17:12:41

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.02 s	Prolog	2023-02-15 16:29:31

#	User	Runtime	Language	Date
1	Hidden user	0.03 s	Python 2	2018-09-17 17:13:58
2	Bowen Xia	0.03 s	Python 2	2018-09-17 17:15:51
3	Hidden user	0.03 s	Python 2	2018-09-17 17:16:12
4	Siyuan Cao	0.03 s	Python 2	2018-09-17 17:18:47
5	Hidden user	0.03 s	Python 2	2018-09-17 18:16:33
6	Shanglun Li	0.03 s	Python 2	2018-09-17 20:12:45
7	Hidden user	0.03 s	Python 2	2018-09-17 20:14:07
8	Lauren Li	0.03 s	Python 2	2018-09-17 20:15:34
9	Hidden user	0.03 s	Python 2	2018-09-18 01:14:03
10	Hidden user	0.03 s	Python 2	2018-09-18 01:15:53

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 3	2018-09-14 20:01:55
2	Hidden user	0.02 s	Python 3	2018-09-17 17:10:20
3	Hidden user	0.02 s	Python 3	2018-09-17 17:12:30
4	Hidden user	0.02 s	Python 3	2018-09-17 17:13:18
5	Hidden user	0.02 s	Python 3	2018-09-17 17:14:03
6	Hidden user	0.02 s	Python 3	2018-09-17 17:14:53
7	Hidden user	0.02 s	Python 3	2018-09-17 17:15:06
8	Hidden user	0.02 s	Python 3	2018-09-17 17:16:55
9	Hidden user	0.02 s	Python 3	2018-09-17 17:19:17
10	Yuta Nakamura	0.02 s	Python 3	2018-09-17 17:19:44

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Ruby	2018-09-17 20:33:33
2	Hidden user	0.04 s	Ruby	2018-09-18 01:26:55
3	Hidden user	0.04 s	Ruby	2018-09-27 23:40:31
4	Mark Donald Amobi	0.04 s	Ruby	2019-03-14 18:26:20
5	Hidden user	0.04 s	Ruby	2019-12-05 23:54:08
6	Hidden user	0.05 s	Ruby	2019-11-04 21:55:24
7	Thomas Feld	0.06 s	Ruby	2023-02-09 13:06:04

#	User	Runtime	Language	Date
1	David Zacek	0.00 s	Rust	2022-09-14 01:28:43

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-02-03 14:17:02

#	User	Length	Language	Date
1	Hidden user	346	C	2020-04-26 00:41:52
2	Rupali Sinha	346	C	2020-08-24 07:29:07
3	Anton Johansson	410	C	2022-11-22 21:16:01
4	Sambit Palit	419	C	2020-10-11 07:02:40
5	David Van Nguyen	439	C	2024-07-11 00:31:31
6	Jón Steinn Elíasson	676	C	2020-03-15 01:07:38
7	Bergur Snorrason	1544	C	2020-10-15 15:01:53
8	Eyleifur Bjarkason	7240	C	2020-10-27 18:08:18

#	User	Length	Language	Date
1	traxex	301	C#	2024-05-27 09:03:14
2	Գոռ Բաղդասարյան	655	C#	2025-03-14 09:21:03
3	Umar Rasyid	728	C#	2025-07-01 05:24:27
4	Hidden user	824	C#	2019-09-19 18:31:20
5	Mikael Fiala-Lundström	1249	C#	2022-02-08 23:08:32
6	Jan Matthiessen	3080	C#	2020-07-19 19:47:02

#	User	Length	Language	Date
1	JD	209	C++	2022-10-24 18:07:29
2	Mohsen Mahroos	229	C++	2023-04-04 11:15:35
3	Ernest Ng Zi Xuan	235	C++	2025-06-29 09:08:49
4	Azhan Khan	237	C++	2020-09-19 19:08:30
5	arda atci	238	C++	2021-09-13 22:41:34
6	Armen Andreasyan	242	C++	2019-12-08 18:43:25
7	Marc Phua	243	C++	2020-07-20 17:13:47
8	Apahidean Luca Teodor	251	C++	2022-01-19 19:20:27
9	Hidden user	252	C++	2019-09-16 21:01:27
10	Scott MacIntosh	252	C++	2020-09-09 23:24:42

#	User	Length	Language	Date
1	Leslie Yip	1315	COBOL	2022-10-03 14:24:02

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	554	F#	2023-01-07 14:41:35

#	User	Length	Language	Date
1	Nischal Bhandari	303	Go	2025-05-16 22:56:08
2	Markus Hansson	355	Go	2022-11-01 16:57:00
3	Norbert Voelker	564	Go	2021-08-30 11:49:02
4	Hidden user	631	Go	2020-03-21 20:39:17
5	Silas Ulander	778	Go	2022-11-03 11:29:46
6	Wei Guo	792	Go	2022-11-07 09:46:41

#	User	Length	Language	Date
1	Hidden user	277	Haskell	2023-01-21 12:14:17
2	Steinar Simonnes	473	Haskell	2024-07-28 20:53:17
3	Brent Yorgey	753	Haskell	2019-09-28 19:58:57
4	Hidden user	8792	Haskell	2019-10-25 15:56:28

#	User	Length	Language	Date
1	Jason Liu	340	Java	2023-09-07 16:08:51
2	Hidden user	373	Java	2019-09-16 21:06:02
3	Hidden user	386	Java	2018-09-17 17:12:07
4	Eric Leow Yu Quan	410	Java	2020-12-31 06:14:27
5	Caeden Whitaker	411	Java	2020-07-27 14:52:01
6	Fumi Yoshikoshi	422	Java	2020-07-30 14:50:57
7	Hidden user	428	Java	2018-09-17 17:15:44
8	Hidden user	430	Java	2019-09-17 06:40:56
9	Hailey Diaz	434	Java	2023-09-19 16:00:41
10	Hidden user	466	Java	2019-09-16 21:07:11

#	User	Length	Language	Date
1	Hidden user	574	JavaScript (Node.js)	2019-06-24 22:10:34
2	Ben Neiswander	590	JavaScript (Node.js)	2020-08-15 04:03:13
3	Howard Tin Chi Chan	611	JavaScript (Node.js)	2021-02-05 19:12:22
4	Hidden user	732	JavaScript (Node.js)	2024-11-09 21:59:40
5	Alexandru Chivescu	807	JavaScript (Node.js)	2020-04-04 19:42:32
6	Bas Dirks	902	JavaScript (Node.js)	2022-01-19 16:08:00

#	User	Length	Language	Date
1	Christian Cederquist	137	JavaScript (SpiderMonkey)	2023-02-11 08:40:18
2	Bjørn Chr. Soltvedt	213	JavaScript (SpiderMonkey)	2019-11-02 23:13:11
3	Hidden user	596	JavaScript (SpiderMonkey)	2019-11-14 05:24:39

#	User	Length	Language	Date
1	Danny Robinson	87	Julia	2023-11-19 06:54:44
2	Timothy Gaede	500	Julia	2024-05-03 07:14:02

#	User	Length	Language	Date
1	Troy Warmboe	324	Kotlin	2020-03-06 02:57:48
2	Hidden user	337	Kotlin	2020-09-19 19:16:38
3	Adam Rankin	495	Kotlin	2023-09-09 03:39:51
4	Phường Lên	561	Kotlin	2019-12-25 02:42:35
5	Neil Harmon	750	Kotlin	2019-10-17 11:28:52
6	Hidden user	781	Kotlin	2019-12-25 14:43:50

#	User	Length	Language	Date
1	Zeheng Li	139	Lua	2024-01-19 19:00:09

#	User	Length	Language	Date
1	Ingemar Ragnemalm	256	Pascal	2020-01-05 09:44:01

#	User	Length	Language	Date
1	Susanne Ragnemalm	230	PHP	2020-03-18 00:51:40
2	Akbar Saputra	637	PHP	2023-09-12 17:12:41

#	User	Length	Language	Date
1	Andriy Zyevakov	441	Prolog	2023-02-15 16:29:31

#	User	Length	Language	Date
1	Thomas Feld	129	Python 2	2019-09-25 15:30:07
2	Jesper Öqvist	130	Python 2	2019-09-29 13:07:07
3	Johan Lyts	171	Python 2	2020-01-11 14:25:59
4	Badr Kamel	176	Python 2	2020-05-02 21:04:09
5	Guan Yang Ze	177	Python 2	2019-12-13 11:54:45
6	Ye Sun	234	Python 2	2019-09-20 00:50:02
7	Shanglun Li	252	Python 2	2018-09-17 20:12:45
8	Yanmarshus Bachtiar	256	Python 2	2020-09-05 13:57:37
9	Bowen Xia	257	Python 2	2018-09-17 17:15:51
10	Hidden user	270	Python 2	2018-09-18 01:14:03

#	User	Length	Language	Date
1	Alexandre Douard	92	Python 3	2023-12-18 13:44:30
2	Farzam Abrishami	102	Python 3	2025-04-23 22:52:24
3	Christian Blumenthal	103	Python 3	2023-06-26 21:08:34
4	Nicholas Russell Saerang	112	Python 3	2023-07-23 13:07:21
5	Tan Yi Long	116	Python 3	2025-04-23 18:19:05
6	Josh Taylor	120	Python 3	2023-06-27 18:39:15
7	Hidden user	121	Python 3	2022-12-02 03:00:21
8	Magnus Eide-Fredriksen	123	Python 3	2023-08-01 12:04:57
9	Simon Baeckelant	123	Python 3	2024-05-12 13:55:45
10	Bjørn Dons	124	Python 3	2019-09-17 21:11:26

#	User	Length	Language	Date
1	Thomas Feld	44	Ruby	2023-02-09 13:06:04
2	Mark Donald Amobi	133	Ruby	2019-03-14 18:26:20
3	Hidden user	197	Ruby	2018-09-27 23:40:31
4	Hidden user	248	Ruby	2019-11-04 21:55:39
5	Hidden user	292	Ruby	2018-09-17 20:33:33
6	Hidden user	328	Ruby	2019-12-05 23:54:08
7	Hidden user	402	Ruby	2018-09-18 01:26:55

#	User	Length	Language	Date
1	David Zacek	638	Rust	2022-09-14 01:28:43

Solution running time distribution