Problem A
Busy Schedule — Problem Statistics

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Submissions	3915
Accepted submissions	1696
Submission ratio	43.32%
Authors	1566
Accepted authors	1394
Author ratio	89.02%

#	User	Runtime	Language	Date
1	Khin Nyunt	0.02 s	C#	2016-04-18 09:42:10
2	Saša Levstik	0.02 s	C#	2016-11-28 22:03:52
3	Ron Harper	0.02 s	C#	2018-03-06 18:08:51
4	Brutus Hansson	0.02 s	C#	2019-01-28 19:58:43
5	Soujatya Sanyal	0.02 s	C#	2019-02-14 03:04:07
6	Apurv Parekh	0.02 s	C#	2019-02-20 23:06:18
7	Tim Smith	0.02 s	C#	2019-06-21 05:26:58
8	Mads Storm Hansen	0.03 s	C#	2015-07-23 14:21:25
9	Ugnius Skučas	0.03 s	C#	2016-10-17 00:16:22
10	Firas Al Omary	0.03 s	C#	2017-04-11 20:22:48

#	User	Runtime	Language	Date
1	David Cawthon	0.01 s	Common Lisp	2020-07-05 06:25:55

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.05 s	F#	2023-01-14 22:09:09

#	User	Runtime	Language	Date
1	Norbert Voelker	0.02 s	Go	2021-06-12 22:52:07
2	Ainun Nazieb	0.04 s	Go	2020-09-30 13:15:39

#	User	Runtime	Language	Date
1	Lars Tveito	0.00 s	Haskell	2015-07-22 21:40:52
2	Hidden user	0.01 s	Haskell	2015-02-09 13:25:03
3	Blake Hyde	0.01 s	Haskell	2016-06-11 05:23:48
4	Michael LoPiccolo	0.01 s	Haskell	2017-07-22 20:22:19
5	Brent Yorgey	0.01 s	Haskell	2017-11-23 06:41:55
6	Aurélien Pepin	0.01 s	Haskell	2019-09-15 17:53:55
7	Steven Fontanella	0.01 s	Haskell	2019-09-20 00:44:37
8	Abel Martin	0.01 s	Haskell	2019-09-22 22:30:11
9	Hidden user	0.01 s	Haskell	2019-11-06 11:17:05
10	Myint Myat Aung	0.01 s	Haskell	2020-07-29 10:16:09

#	User	Runtime	Language	Date
1	Pål Forsberg	0.06 s	Java	2015-09-30 16:20:10
2	Michael Sullivan	0.06 s	Java	2016-01-17 04:53:00
3	Sven Rönnbäck	0.06 s	Java	2022-04-18 10:13:28
4	Samuel Klingström	0.07 s	Java	2017-06-13 01:12:40
5	Manuel Rodriguez	0.07 s	Java	2018-02-27 04:34:17
6	Hidden user	0.07 s	Java	2025-03-11 04:20:49
7	Luu Nhat Phi	0.08 s	Java	2015-10-07 12:28:50
8	Simon Xue	0.08 s	Java	2016-03-08 20:57:37
9	Hidden user	0.08 s	Java	2016-04-07 11:26:27
10	Fu Jin	0.08 s	Java	2018-07-14 12:25:08

#	User	Runtime	Language	Date
1	Quinn Flavel	0.42 s	JavaScript (Node.js)	2020-09-22 18:21:18
2	Daniel Cabral	0.43 s	JavaScript (Node.js)	2020-04-08 17:03:49
3	Khin Nyunt	0.44 s	JavaScript (Node.js)	2021-09-19 17:06:45

#	User	Runtime	Language	Date
1	Peter Kedemo	0.01 s	JavaScript (SpiderMonkey)	2016-01-01 19:24:00
2	Bjørn Chr. Soltvedt	0.01 s	JavaScript (SpiderMonkey)	2016-01-27 00:39:50
3	Michael Laszlo	0.01 s	JavaScript (SpiderMonkey)	2016-10-05 17:45:10
4	J M	0.01 s	JavaScript (SpiderMonkey)	2016-10-17 03:34:31
5	Frédéric Morel	0.02 s	JavaScript (SpiderMonkey)	2016-10-15 21:10:54
6	Tor Nordqvist	0.02 s	JavaScript (SpiderMonkey)	2016-10-26 22:36:59
7	Zachary DeStefano	0.03 s	JavaScript (SpiderMonkey)	2019-09-29 18:00:54
8	Christian Cederquist	0.03 s	JavaScript (SpiderMonkey)	2023-03-19 21:45:34
9	Quoc Anh Khoa Nguyen	0.03 s	JavaScript (SpiderMonkey)	2025-01-23 05:29:47
10	Zach Tschetter	0.04 s	JavaScript (SpiderMonkey)	2023-04-18 06:01:24

#	User	Runtime	Language	Date
1	Timothy Gaede	0.65 s	Julia	2024-04-23 09:22:17

#	User	Runtime	Language	Date
1	Zaw Myat	0.26 s	Kotlin	2023-12-17 05:11:41
2	Bradley Richards	0.27 s	Kotlin	2023-03-08 09:36:32
3	Adam Rankin	0.30 s	Kotlin	2023-05-09 21:39:06

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.04 s	Prolog	2016-09-07 15:08:08

#	User	Runtime	Language	Date
1	Saša Levstik	0.02 s	Python 3	2015-05-18 13:15:19
2	James Elías Sigurðarson	0.02 s	Python 3	2015-06-03 16:20:56
3	Baldur Tryggvason	0.02 s	Python 3	2015-08-08 01:25:53
4	Johannes Agestam	0.02 s	Python 3	2015-08-18 00:52:24
5	Ziga Staresinic	0.02 s	Python 3	2015-09-09 16:07:53
6	Wayne	0.02 s	Python 3	2016-02-15 21:08:31
7	Clint Nieuwendijk	0.02 s	Python 3	2016-03-29 16:20:04
8	Hidden user	0.02 s	Python 3	2016-08-17 14:37:35
9	Nguyen Hung Thai	0.02 s	Python 3	2016-10-01 06:37:10
10	Mohamed CHADAD	0.02 s	Python 3	2016-10-17 00:24:08

#	User	Runtime	Language	Date
1	Casper Christensen	0.04 s	Ruby	2016-01-24 15:28:26
2	Nucleo Extensão em Tecnologia da Informação	0.05 s	Ruby	2019-06-01 23:13:12
3	Davi Guimarães Leite	0.05 s	Ruby	2019-06-07 20:05:49
4	Isaac Bruce	0.06 s	Ruby	2023-01-30 05:54:00
5	Thomas Feld	0.06 s	Ruby	2023-08-17 16:02:39

#	User	Runtime	Language	Date
1	Bas Dirks	0.00 s	Rust	2022-02-08 10:11:49
2	David Rasch	0.00 s	Rust	2023-08-24 09:55:29
3	Vincent Lagerros	0.00 s	Rust	2025-01-25 04:07:39

#	User	Length	Language	Date
1	Mikael K Eriksson	979	C	2021-02-03 18:54:14
2	Andrew Roberts	1130	C	2017-09-15 00:45:13
3	Hidden user	1155	C	2017-11-25 12:24:57
4	Seth Carter	1389	C	2018-11-01 19:41:39
5	Jon Voigt Tøttrup	1474	C	2019-09-30 19:51:41
6	Viet Anh Ho	1511	C	2016-05-10 20:10:46
7	Tyler Mulholland	1697	C	2023-04-04 19:00:48
8	貓貓吃狗狗	1763	C	2015-10-07 08:58:45
9	Adam Evans	1778	C	2015-09-24 23:30:31
10	Sambit Palit	1846	C	2020-10-02 23:55:38

#	User	Length	Language	Date
1	Brian Scott	692	C#	2017-10-23 07:03:16
2	Göran Andersson	986	C#	2022-05-27 02:42:07
3	Ugnius Skučas	1080	C#	2016-10-17 00:16:22
4	Hidden user	1133	C#	2018-01-30 14:21:03
5	Yevgeniy Sheyer	1182	C#	2025-02-15 20:39:02
6	Firas Al Omary	1388	C#	2017-04-11 20:22:48
7	Klas af Geijerstam	1468	C#	2017-05-19 23:18:36
8	Mikael Fiala-Lundström	1640	C#	2021-06-17 01:23:03
9	Khin Nyunt	1674	C#	2016-04-18 09:42:10
10	Soujatya Sanyal	1674	C#	2019-02-14 03:04:07

#	User	Length	Language	Date
1	Frans Meulenbroeks	329	C++	2025-02-13 15:24:19
2	Zarif	390	C++	2023-12-12 06:41:09
3	William Gan	476	C++	2017-03-01 13:37:20
4	David Wärn	484	C++	2015-08-25 20:29:56
5	Herman Karlsson	515	C++	2015-02-27 21:12:51
6	Titus Chew	564	C++	2025-02-07 16:55:35
7	Frederick Pek	603	C++	2021-07-06 19:21:26
8	Vu Thanh Hai	619	C++	2022-10-14 17:07:46
9	Scott MacIntosh	631	C++	2019-10-06 21:08:59
10	Brandon Zhang	648	C++	2023-11-09 09:53:51

#	User	Length	Language	Date
1	David Cawthon	694	Common Lisp	2020-07-05 06:25:55

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	865	F#	2023-01-14 22:09:09

#	User	Length	Language	Date
1	Ainun Nazieb	688	Go	2020-09-30 13:15:39
2	Norbert Voelker	1315	Go	2021-06-12 22:52:07

#	User	Length	Language	Date
1	Steinar Simonnes	363	Haskell	2023-11-04 14:28:10
2	Myint Myat Aung	743	Haskell	2020-07-29 10:16:09
3	Jan Hrček	766	Haskell	2021-04-13 05:47:06
4	Lars Tveito	933	Haskell	2015-07-22 21:40:52
5	Joshua Coward	952	Haskell	2022-02-17 05:09:46
6	Aurélien Pepin	1036	Haskell	2019-09-15 17:53:55
7	Hidden user	1119	Haskell	2022-12-26 03:39:08
8	Steven Fontanella	1120	Haskell	2019-09-20 00:44:37
9	Michael LoPiccolo	1307	Haskell	2017-07-22 20:22:19
10	Blake Hyde	1311	Haskell	2016-06-11 05:39:50

#	User	Length	Language	Date
1	Micah Stairs	891	Java	2016-07-10 04:31:24
2	Terrence Park	909	Java	2015-10-13 11:56:32
3	Yassine Ci	909	Java	2016-05-16 00:34:46
4	Brian Lee	925	Java	2018-11-20 17:29:00
5	Myat Pwint Phyu	936	Java	2016-05-12 11:44:39
6	Zachary Crowley-Kurth	948	Java	2017-12-01 23:20:21
7	Destiny S Mhishi	973	Java	2016-02-27 18:04:11
8	Zimu Qin	989	Java	2015-07-18 17:38:14
9	Duncan Page	992	Java	2017-11-30 22:56:59
10	Greg Araujo	992	Java	2016-02-22 23:32:20

#	User	Length	Language	Date
1	Quinn Flavel	561	JavaScript (Node.js)	2020-09-22 18:21:18
2	Khin Nyunt	1547	JavaScript (Node.js)	2021-09-19 17:06:45
3	Daniel Cabral	1687	JavaScript (Node.js)	2020-04-08 17:03:49

#	User	Length	Language	Date
1	Zach Tschetter	439	JavaScript (SpiderMonkey)	2023-04-18 06:01:24
2	Christian Cederquist	448	JavaScript (SpiderMonkey)	2023-03-19 21:45:34
3	Tor Nordqvist	698	JavaScript (SpiderMonkey)	2016-10-26 22:36:59
4	Peter Kedemo	761	JavaScript (SpiderMonkey)	2016-01-01 19:24:00
5	J M	770	JavaScript (SpiderMonkey)	2016-10-17 03:34:31
6	Zachary DeStefano	809	JavaScript (SpiderMonkey)	2019-09-29 18:00:54
7	Frédéric Morel	810	JavaScript (SpiderMonkey)	2016-10-15 21:10:54
8	Bjørn Chr. Soltvedt	836	JavaScript (SpiderMonkey)	2016-01-27 00:39:50
9	Michael Laszlo	1044	JavaScript (SpiderMonkey)	2016-10-05 17:45:10
10	Quoc Anh Khoa Nguyen	1300	JavaScript (SpiderMonkey)	2025-01-23 05:29:47

#	User	Length	Language	Date
1	Timothy Gaede	860	Julia	2024-04-23 09:22:17

#	User	Length	Language	Date
1	Bradley Richards	841	Kotlin	2023-03-08 09:36:32
2	Adam Rankin	1336	Kotlin	2023-05-09 21:39:06
3	Zaw Myat	3617	Kotlin	2023-12-17 05:11:41

#	User	Length	Language	Date
1	Andriy Zyevakov	2464	Prolog	2016-09-07 15:08:08

#	User	Length	Language	Date
1	Hidden user	201	Python 3	2023-08-01 18:05:51
2	Rafael Kristoforus Yanto	218	Python 3	2025-02-23 07:11:55
3	Tai Tze Kin	218	Python 3	2024-05-03 17:43:30
4	Asger Hautop Drewsen	239	Python 3	2017-05-31 00:34:14
5	Markus	246	Python 3	2020-09-11 21:22:36
6	Ahmed Chamseddine	247	Python 3	2023-11-21 15:41:58
7	Lim Dewen, Aloysius	252	Python 3	2021-05-03 17:49:31
8	Suus Brommer	256	Python 3	2024-04-22 10:48:41
9	Thomas Draper	259	Python 3	2023-09-22 04:00:13
10	Yohannes Melese	266	Python 3	2021-03-31 12:28:58

#	User	Length	Language	Date
1	Thomas Feld	68	Ruby	2023-08-17 16:04:26
2	Casper Christensen	534	Ruby	2016-01-24 15:28:26
3	Isaac Bruce	681	Ruby	2023-01-30 05:54:00
4	Nucleo Extensão em Tecnologia da Informação	1535	Ruby	2019-06-01 23:13:12
5	Davi Guimarães Leite	1535	Ruby	2019-06-07 20:05:49

#	User	Length	Language	Date
1	Vincent Lagerros	832	Rust	2025-01-25 04:07:39
2	David Rasch	1066	Rust	2023-08-24 09:55:29
3	Bas Dirks	2016	Rust	2022-02-08 10:11:49

Solution running time distribution