Problem D
Flipping Cards — Problem Statistics

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Submissions	1842
Accepted submissions	540
Submission ratio	29.32%
Authors	503
Accepted authors	345
Author ratio	68.59%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.35 s	Bash	2024-04-17 19:04:15

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.03 s	C	2022-02-17 09:28:23
2	Ivan Petrov	0.08 s	C	2019-08-06 09:55:02
3	Hidden user	0.10 s	C	2020-10-15 10:29:15
4	Alexander Bilde Pedersen	0.11 s	C	2025-04-02 22:55:14

#	User	Runtime	Language	Date
1	Noah Weninger	0.06 s	C++	2021-03-06 01:25:45
2	Валентин Ермишин	0.08 s	C++	2017-11-05 04:17:09
3	Daniel Fernando Santos Bustos	0.08 s	C++	2017-12-27 16:06:30
4	Jesse Lutan	0.08 s	C++	2021-02-16 21:24:52
5	Farrel Dwireswara Salim	0.08 s	C++	2023-03-06 04:42:37
6	Giuseppe Vietri	0.09 s	C++	2016-10-24 16:53:41
7	Ngo Huy	0.09 s	C++	2017-06-25 13:16:28
8	Robin Christopher Yu	0.09 s	C++	2018-03-02 01:58:31
9	Victor Lecomte	0.09 s	C++	2018-09-29 18:18:42
10	Bicheng Gao	0.09 s	C++	2018-09-29 18:29:26

#	User	Runtime	Language	Date
1	Bjørn Dons	0.19 s	Java	2023-05-20 22:38:36
2	Daniel Moyer	0.47 s	Java	2016-10-26 03:30:28
3	Godmar Back	0.48 s	Java	2016-10-24 16:00:32
4	Xingfang Yuan	0.53 s	Java	2016-10-22 21:02:40
5	Rene Argento	0.55 s	Java	2024-08-02 02:46:43
6	Finn Lidbetter	0.57 s	Java	2017-08-05 14:03:56
7	Ronald Cruz	0.58 s	Java	2017-06-25 22:15:05
8	Nick Wu	0.59 s	Java	2015-11-27 07:34:08
9	Logan Su	0.61 s	Java	2016-10-22 21:22:27
10	Chris Wu	0.67 s	Java	2016-10-24 08:14:08

#	User	Runtime	Language	Date
1	Christian Cederquist	0.31 s	JavaScript (SpiderMonkey)	2024-07-22 07:57:17

#	User	Runtime	Language	Date
1	Phường Lên	0.68 s	Kotlin	2020-05-29 19:42:01
2	Jacob Huebner	1.24 s	Kotlin	2021-04-29 19:19:00

#	User	Runtime	Language	Date
1	Jonathan Wan	0.36 s	Python 2	2015-11-21 23:26:29
2	Josenildo Silva	0.58 s	Python 2	2017-02-21 21:35:56
3	Andreas Björklund	0.71 s	Python 2	2019-03-05 20:21:41
4	Mees de Vries	1.15 s	Python 2	2020-02-21 13:09:41

#	User	Runtime	Language	Date
1	Ahmed Siadomar	0.51 s	Python 3	2023-01-23 18:16:00
2	Nicholas Russell Saerang	0.60 s	Python 3	2023-07-02 09:10:38
3	Gradin Anderson	0.79 s	Python 3	2023-10-06 05:20:58
4	Noam Cohen	0.83 s	Python 3	2022-02-22 23:45:28
5	Quirijn Boeren	1.04 s	Python 3	2022-02-24 16:03:37
6	Constantijn Dekker	1.05 s	Python 3	2022-02-23 12:45:57
7	Alex Hanrath	1.10 s	Python 3	2022-02-23 18:25:56
8	Tianqin Chu	1.38 s	Python 3	2025-06-03 18:03:28
9	Steven Thijs	1.40 s	Python 3	2022-03-01 18:44:26
10	Erik Buis	1.41 s	Python 3	2022-02-25 22:01:17

#	User	Runtime	Language	Date
1	Thomas Feld	0.95 s	Ruby	2023-11-10 08:58:52

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2025-03-16 02:00:27
2	Daniel Anker Hermansen	0.71 s	Rust	2024-06-08 15:51:38

#	User	Length	Language	Date
1	Chenzhang Hu	5	Bash	2024-04-17 19:04:15

#	User	Length	Language	Date
1	Ivan Petrov	797	C	2019-08-06 09:55:02
2	Hidden user	1581	C	2020-10-15 10:29:15
3	Bergur Snorrason	2047	C	2022-02-17 09:28:23
4	Alexander Bilde Pedersen	2253	C	2025-04-02 22:55:14

#	User	Length	Language	Date
1	林正阳	661	C++	2018-10-22 15:19:53
2	Hubert Teo	689	C++	2016-10-22 20:16:28
3	Elias Lolck	694	C++	2021-05-29 19:49:11
4	Leonardo Blanger	783	C++	2021-01-10 18:50:39
5	Dhruv Rohatgi	783	C++	2016-04-18 04:51:49
6	Anass Aljarroudi	789	C++	2021-10-20 13:58:47
7	Thor Eriksen	793	C++	2021-05-29 20:08:57
8	Rui Liu	805	C++	2022-11-30 14:30:24
9	Markus Mathiasen	836	C++	2023-08-11 16:03:54
10	Hidden user	839	C++	2024-10-15 18:54:18

#	User	Length	Language	Date
1	Frank Luan	1150	Java	2016-10-23 06:56:36
2	Anthony De Rada	1238	Java	2016-11-11 20:24:43
3	Sam Reinehr	1239	Java	2018-10-10 19:39:10
4	Mitch Price	1382	Java	2017-09-27 06:18:10
5	Gaurav Arora	1449	Java	2016-02-19 22:41:48
6	Logan Su	1545	Java	2016-10-22 21:22:27
7	Viet Hoang Nguyen	1555	Java	2017-09-06 18:09:56
8	Joshua Alman	1590	Java	2016-10-22 21:33:48
9	Finn Lidbetter	1796	Java	2017-08-05 14:03:56
10	Victor Reis	1834	Java	2016-11-07 00:14:44

#	User	Length	Language	Date
1	Christian Cederquist	1293	JavaScript (SpiderMonkey)	2024-07-22 07:45:01

#	User	Length	Language	Date
1	Jacob Huebner	1558	Kotlin	2021-04-29 19:19:00
2	Phường Lên	2015	Kotlin	2020-05-29 19:42:01

#	User	Length	Language	Date
1	Andreas Björklund	697	Python 2	2019-03-05 20:21:41
2	Josenildo Silva	925	Python 2	2017-02-21 21:35:56
3	Jonathan Wan	1064	Python 2	2015-11-21 23:26:29
4	Mees de Vries	2816	Python 2	2020-02-21 13:09:41

#	User	Length	Language	Date
1	Gradin Anderson	631	Python 3	2023-10-06 05:20:58
2	Nicholas Russell Saerang	805	Python 3	2023-07-02 09:10:38
3	Akshay Gupta	921	Python 3	2017-11-10 09:35:51
4	Noam Cohen	1055	Python 3	2022-02-22 23:45:28
5	Tianqin Chu	1197	Python 3	2025-06-03 18:03:28
6	Ahmed Siadomar	1416	Python 3	2023-01-23 18:16:00
7	Quirijn Boeren	2723	Python 3	2022-02-24 16:03:37
8	Boris den Ouden	2743	Python 3	2022-03-02 20:53:02
9	Floris Cnossen	2746	Python 3	2022-02-23 12:44:12
10	Steven Thijs	2755	Python 3	2022-03-01 18:44:26

#	User	Length	Language	Date
1	Thomas Feld	220	Ruby	2023-11-10 09:36:22

#	User	Length	Language	Date
1	Daniel Anker Hermansen	27613	Rust	2024-06-08 15:51:38
2	Vincent Lagerros	42239	Rust	2025-03-16 01:07:05

Solution running time distribution