Problem A
Booking — Problem Statistics

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Submissions	1846
Accepted submissions	663
Submission ratio	35.92%
Authors	415
Accepted authors	323
Author ratio	77.83%

#	User	Runtime	Language	Date
1	Gabriel Morosini	0.20 s	C	2022-11-29 15:53:11
2	Ananthi Kalirajan	0.20 s	C	2023-05-24 15:30:28
3	Aman Banti	0.20 s	C	2023-06-01 14:24:50
4	Amanuel Bantidagn	0.20 s	C	2023-06-01 14:27:12
5	Hidden user	0.20 s	C	2025-05-25 22:07:36
6	Quân Anh	0.21 s	C	2024-04-03 19:45:23
7	Mohammed Amine Hssaine	0.22 s	C	2024-07-22 21:31:57
8	Jón Steinn Elíasson	0.23 s	C	2020-03-25 21:01:37
9	kaminipaty sai nidhin	0.23 s	C	2020-09-15 15:49:11
10	william chang	0.23 s	C	2020-10-04 09:47:45

#	User	Runtime	Language	Date
1	Carles Bordas	0.57 s	C#	2023-07-13 12:13:42
2	Bùi Văn Mệnh	2.13 s	C#	2016-06-18 05:12:04

#	User	Runtime	Language	Date
1	Kaelin Wang Hu	0.05 s	C++	2025-09-07 06:02:16
2	Hidden user	0.08 s	C++	2020-04-09 08:05:15
3	Johan Wind	0.10 s	C++	2019-10-26 02:25:56
4	Bay Wei Heng	0.14 s	C++	2019-01-25 14:44:48
5	Alex Lind	0.14 s	C++	2019-04-14 20:38:17
6	Benjamin Reidys	0.14 s	C++	2019-04-15 00:02:40
7	DUY LE	0.14 s	C++	2025-03-19 04:54:15
8	Neal Zane	0.15 s	C++	2014-02-15 14:37:42
9	Dmitry Lyubshin	0.15 s	C++	2018-03-21 16:45:00
10	Alfredo Beaumont	0.15 s	C++	2018-11-25 21:45:12

#	User	Runtime	Language	Date
1	Hidden user	0.63 s	Common Lisp	2019-06-25 07:37:01

#	User	Runtime	Language	Date
1	Rosa Gutierrez	0.46 s	Go	2022-05-11 09:33:40
2	filipe	0.72 s	Go	2023-02-04 19:32:26

#	User	Runtime	Language	Date
1	Birk Tjelmeland	1.14 s	Haskell	2017-12-26 22:35:15

#	User	Runtime	Language	Date
1	Zach Glick	0.66 s	Java	2017-10-24 16:43:23
2	Arnav Sastry	0.68 s	Java	2017-10-15 21:12:22
3	Kevin Chevalier	0.80 s	Java	2017-10-16 00:00:56
4	Jiru Xu	0.81 s	Java	2017-10-15 23:50:43
5	Erik Odenman	0.93 s	Java	2013-09-19 19:20:45
6	Steven Halim	0.98 s	Java	2018-07-09 05:58:27
7	Fatikhsultan Zhakshylykov	1.04 s	Java	2020-12-26 05:26:27
8	Mike Nguyen	1.14 s	Java	2021-05-09 22:05:44
9	Đỗ Duy Tân	1.18 s	Java	2015-11-16 09:45:05
10	Diệp Hiểu Phong	1.19 s	Java	2016-09-29 16:51:32

#	User	Runtime	Language	Date
1	Adam Rankin	2.25 s	Kotlin	2023-09-23 17:34:42

#	User	Runtime	Language	Date
1	Andreas Björklund	1.01 s	Python 2	2021-11-16 19:16:58
2	Nguễn Hải Đại	2.10 s	Python 2	2016-09-09 06:21:41
3	Nguyễn Đức Mạnh	2.21 s	Python 2	2016-09-09 06:24:29
4	Yan Kalchevsky	2.28 s	Python 2	2015-02-23 13:24:11
5	Prateek Jain	2.35 s	Python 2	2015-05-31 11:05:04
6	Christofer Ohlsson	2.74 s	Python 2	2015-11-15 11:15:58
7	Wang Zhi Jian	2.76 s	Python 2	2019-01-26 19:54:28
8	Alexandre Loiko	2.92 s	Python 2	2015-12-30 01:27:13
9	Hidden user	3.15 s	Python 2	2016-07-17 21:02:56
10	Ragur Krishnan	3.29 s	Python 2	2019-01-09 02:54:39

#	User	Runtime	Language	Date
1	Petr	0.28 s	Python 3	2025-06-03 14:43:53
2	Caio Eduardo Marcondes	0.66 s	Python 3	2023-02-04 17:07:44
3	Eric Leow Yu Quan	0.71 s	Python 3	2025-03-04 14:50:45
4	Maxim Barbe	0.88 s	Python 3	2024-10-04 05:11:43
5	Goh Sheen An	0.92 s	Python 3	2022-10-25 12:30:24
6	Saahith Janapati	0.96 s	Python 3	2024-02-03 19:11:18
7	Tristan Cohen-Rider	0.97 s	Python 3	2025-03-18 01:12:34
8	Sam Lichtman	0.99 s	Python 3	2024-02-03 19:32:50
9	Hidden user	1.03 s	Python 3	2020-07-06 17:31:31
10	Steven Hwang	1.04 s	Python 3	2020-05-12 20:54:05

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2025-08-19 03:05:05

#	User	Runtime	Language	Date
1	Jonathan Hallström	0.01 s	Zig	2024-10-18 13:22:30

#	User	Length	Language	Date
1	Ivan Petrov	1330	C	2019-09-18 09:39:04
2	Hidden user	1941	C	2017-05-22 21:49:48
3	Aman Banti	2071	C	2023-06-01 14:24:50
4	Amanuel Bantidagn	2071	C	2023-06-01 14:27:12
5	Mohammed Amine Hssaine	2071	C	2024-07-22 21:31:57
6	Hidden user	2150	C	2025-05-25 22:07:36
7	Gabriel Morosini	2164	C	2022-11-29 15:53:11
8	Ananthi Kalirajan	2164	C	2023-05-24 15:30:28
9	Jón Steinn Elíasson	2164	C	2020-03-25 21:01:37
10	Mickye Mouse	2164	C	2021-06-16 20:51:15

#	User	Length	Language	Date
1	Carles Bordas	2485	C#	2023-07-13 12:13:42
2	Bùi Văn Mệnh	2660	C#	2016-06-18 05:12:04

#	User	Length	Language	Date
1	Fabio Giovanazzi	777	C++	2021-11-15 22:55:58
2	Hyunjun Lee	884	C++	2022-10-27 13:44:03
3	Hidden user	918	C++	2014-12-17 00:24:17
4	Javier del Río	1031	C++	2022-02-16 16:55:46
5	Asger Hautop Drewsen	1052	C++	2017-08-15 17:18:26
6	Markus Mathiasen	1074	C++	2021-08-22 21:34:36
7	Christopher Deodat	1080	C++	2020-10-02 09:49:37
8	Neev Kataria	1134	C++	2023-12-04 09:32:34
9	Brandon Zhang	1177	C++	2023-09-14 00:38:28
10	Johan Wind	1182	C++	2019-10-26 02:25:56

#	User	Length	Language	Date
1	Hidden user	1752	Common Lisp	2019-06-25 07:32:14

#	User	Length	Language	Date
1	Rosa Gutierrez	1514	Go	2022-05-11 09:33:40
2	filipe	2026	Go	2023-02-04 19:32:26

#	User	Length	Language	Date
1	Birk Tjelmeland	1558	Haskell	2017-12-26 22:35:15

#	User	Length	Language	Date
1	Benjamin Laurence Erickson	1454	Java	2016-03-01 19:22:42
2	Đạt Tiến Phùng	1554	Java	2016-09-06 06:38:23
3	Zhixiu Lu	1565	Java	2016-02-26 05:48:24
4	Kurtis Van Gent	1626	Java	2016-02-24 00:06:22
5	Johan Sannemo	1706	Java	2013-09-19 18:47:27
6	James Black	1773	Java	2017-09-19 13:47:49
7	Josenildo Silva	1810	Java	2018-08-17 19:11:42
8	Jay Lim	1810	Java	2019-01-22 09:54:35
9	Doug Goodman	1823	Java	2018-06-25 23:21:42
10	Zhixiu Lu	1937	Java	2016-02-26 06:41:17

#	User	Length	Language	Date
1	Adam Rankin	2500	Kotlin	2023-09-23 17:34:42

#	User	Length	Language	Date
1	Ainun Najib	602	Python 2	2020-09-14 09:20:46
2	Ragur Krishnan	630	Python 2	2019-01-09 02:54:39
3	Alexandre Loiko	727	Python 2	2015-12-30 01:11:57
4	Andreas Björklund	800	Python 2	2021-11-16 19:16:58
5	Wang Zhi Jian	803	Python 2	2019-01-26 19:54:28
6	Hidden user	1023	Python 2	2016-07-17 21:02:56
7	Christofer Ohlsson	1133	Python 2	2015-11-15 11:15:58
8	Yan Kalchevsky	1289	Python 2	2015-02-23 13:11:13
9	Prateek Jain	1325	Python 2	2015-05-31 11:05:04
10	Nguễn Hải Đại	3750	Python 2	2016-09-09 06:21:41

#	User	Length	Language	Date
1	Casper Rysgaard	389	Python 3	2024-05-22 10:26:11
2	Nicholas Russell Saerang	431	Python 3	2025-03-10 13:25:38
3	Simon Mandlik	567	Python 3	2023-10-19 16:06:43
4	Guillermo Hernández	597	Python 3	2021-10-24 00:44:37
5	Lew Choon Hean	687	Python 3	2025-04-16 14:53:21
6	Chris Vilches	690	Python 3	2025-02-28 15:52:03
7	Alfred Olsson	690	Python 3	2019-07-24 15:47:26
8	Oskar Haarklou Veileborg	700	Python 3	2020-04-28 20:07:17
9	alexandre dewilde	719	Python 3	2025-07-18 16:00:44
10	Christoffer Sommerlund	739	Python 3	2021-03-14 15:22:06

#	User	Length	Language	Date
1	Vincent Lagerros	23848	Rust	2024-10-18 14:40:10

#	User	Length	Language	Date
1	Jonathan Hallström	3390	Zig	2024-10-18 11:39:57

Solution running time distribution