Problem A
The White Rabbit Pocket Watch — Problem Statistics

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Submissions	419
Accepted submissions	101
Submission ratio	24.11%
Authors	97
Full solves [?]	81
Full solve Ratio	83.51%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.04 s	C	2019-06-07 08:43:17

#	User	Runtime	Language	Date
1	Shu Han	0.02 s	C++	2019-09-26 19:14:33
2	Andres Leonel Juarez Careaga	0.03 s	C++	2021-05-18 15:38:57
3	Mathias Gernez	0.03 s	C++	2023-07-31 22:28:15
4	Alexandre	0.03 s	C++	2025-09-19 15:02:30
5	Markus Krabbe Larsen	0.04 s	C++	2021-10-22 12:09:48
6	Zac Friggstad	0.04 s	C++	2022-03-18 15:42:09
7	Andrew Polizzotto	0.04 s	C++	2022-07-03 00:33:23
8	Martijn van der Horst	0.04 s	C++	2023-05-31 23:15:13
9	Sabit Zahin	0.05 s	C++	2017-08-15 01:29:24
10	Ngọc Hải Đinh	0.05 s	C++	2017-10-28 07:16:09

#	User	Runtime	Language	Date
1	Norbert Voelker	0.94 s	Go	2022-01-06 21:26:49

#	User	Runtime	Language	Date
1	Nick Wu	0.41 s	Java	2017-04-03 00:17:07
2	Chris Wu	0.42 s	Java	2017-04-02 22:47:45
3	Brent Yorgey	0.42 s	Java	2020-06-23 20:03:23
4	Benjamin Reidys	0.44 s	Java	2019-06-09 01:59:11
5	Måns Magnusson	0.64 s	Java	2017-11-07 15:51:08
6	Atharva Nagarkar	0.70 s	Java	2018-09-27 03:40:02
7	Alex Coleman	0.72 s	Java	2018-03-10 08:17:47
8	Tyler VanHaren	0.77 s	Java	2018-03-14 05:16:41
9	Alex Lind	0.83 s	Java	2019-07-19 21:12:43

#	User	Runtime	Language	Date
1	Asger Hautop Drewsen	0.29 s	Python 2	2017-09-28 15:37:27
2	Oskar Haarklou Veileborg	0.29 s	Python 2	2017-10-02 12:26:01

#	User	Runtime	Language	Date
1	Nicholas Russell Saerang	0.18 s	Python 3	2025-02-20 19:58:25
2	Russell	0.18 s	Python 3	2025-09-22 00:32:56
3	Xiu-Heng Hua	0.21 s	Python 3	2022-03-14 14:58:08
4	Jeremiah Daniel Regalario	0.23 s	Python 3	2025-06-13 21:26:04
5	Ahmed Chamseddine	0.51 s	Python 3	2024-03-20 16:00:38

#	User	Length	Language	Date
1	Ivan Petrov	2910	C	2019-06-07 08:43:17

#	User	Length	Language	Date
1	Ragur Krishnan	1704	C++	2019-05-27 06:01:51
2	Josenildo Silva	1964	C++	2018-07-30 14:35:21
3	Francesco Milizia	2072	C++	2017-07-25 15:32:59
4	Filippo Baroni	2089	C++	2017-08-22 12:45:34
5	Trinh Hoang Anh	2224	C++	2017-12-05 16:31:27
6	Alexander Skidanov	2318	C++	2025-09-08 14:59:35
7	memset0	2457	C++	2024-08-13 06:28:52
8	Zac Friggstad	2479	C++	2022-03-18 15:42:09
9	Dmitry Lyubshin	2540	C++	2018-08-27 09:21:48
10	Shu Han	2571	C++	2019-09-26 19:14:33

#	User	Length	Language	Date
1	Norbert Voelker	7494	Go	2022-01-06 20:55:02

#	User	Length	Language	Date
1	Alex Coleman	2774	Java	2018-03-10 08:17:47
2	Tyler VanHaren	3271	Java	2018-03-14 05:16:41
3	Atharva Nagarkar	4594	Java	2018-09-27 03:40:02
4	Nick Wu	5234	Java	2017-04-03 00:17:07
5	Måns Magnusson	5323	Java	2017-11-07 15:51:08
6	Alex Lind	5585	Java	2019-07-19 21:12:43
7	Benjamin Reidys	6836	Java	2019-06-09 01:59:11
8	Chris Wu	10099	Java	2017-04-02 22:47:45
9	Brent Yorgey	10835	Java	2020-06-23 20:03:23

#	User	Length	Language	Date
1	Asger Hautop Drewsen	1708	Python 2	2017-09-28 15:37:27
2	Oskar Haarklou Veileborg	1708	Python 2	2017-10-02 12:26:01

#	User	Length	Language	Date
1	Xiu-Heng Hua	2289	Python 3	2022-03-14 14:58:08
2	Nicholas Russell Saerang	2432	Python 3	2025-02-20 19:58:25
3	Russell	2432	Python 3	2025-09-22 00:32:56
4	Jeremiah Daniel Regalario	2650	Python 3	2025-06-13 21:26:04
5	Ahmed Chamseddine	3164	Python 3	2024-03-20 16:00:38

Solution running time distribution