Problem A
Nested Dolls — Problem Statistics

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Submissions	3592
Accepted submissions	835
Submission ratio	23.25%
Authors	727
Accepted authors	482
Author ratio	66.30%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.15 s	C	2019-04-01 08:53:26
2	Aldehime	0.17 s	C	2022-05-17 11:08:50
3	Hidden user	0.17 s	C	2024-01-21 22:55:37
4	Alexander Bilde Pedersen	0.18 s	C	2023-05-18 02:58:03
5	Olav Røthe Bakken	0.21 s	C	2017-01-28 20:16:28
6	Svein Høgemo	0.21 s	C	2018-02-28 12:08:03

#	User	Runtime	Language	Date
1	Tobias Bjerge Bang	1.00 s	C#	2020-09-20 15:53:48

#	User	Runtime	Language	Date
1	Hidden user	0.06 s	C++	2018-02-25 21:53:42
2	Agis Daniels	0.07 s	C++	2020-04-02 15:48:41
3	Roger Chen	0.08 s	C++	2022-08-19 16:40:10
4	Alberto Verdejo	0.08 s	C++	2023-03-31 10:23:48
5	Nicolaj Valsted	0.10 s	C++	2022-09-24 14:45:43
6	Dmitry Lyubshin	0.13 s	C++	2018-07-24 03:53:39
7	Hidden user	0.13 s	C++	2019-08-26 02:14:30
8	Jisan Shaikh	0.14 s	C++	2018-07-28 20:03:34
9	Antoni Guz	0.14 s	C++	2018-11-30 13:53:59
10	Willson Wijaya	0.14 s	C++	2019-02-25 08:50:53

#	User	Runtime	Language	Date
1	Norbert Voelker	0.32 s	Go	2023-07-10 11:12:39

#	User	Runtime	Language	Date
1	Birk Tjelmeland	1.73 s	Haskell	2017-06-27 23:58:33
2	Hidden user	3.95 s	Haskell	2019-12-13 02:07:57

#	User	Runtime	Language	Date
1	Bjørn Dons	0.39 s	Java	2018-12-03 00:26:49
2	Josenildo Silva	0.54 s	Java	2017-07-08 07:10:17
3	Erik Tjøswold	0.81 s	Java	2018-02-03 18:29:02
4	Jeremy Lim	0.95 s	Java	2025-02-27 05:41:26
5	Jeremy Tan Kai Qun	1.06 s	Java	2019-09-30 00:33:08
6	Jonas Mossin Wagle	1.16 s	Java	2018-02-02 10:16:30
7	Fu Jin	1.17 s	Java	2018-07-21 09:48:20
8	Doug Goodman	1.20 s	Java	2018-03-11 18:57:25
9	Wu Zhen Rong	1.21 s	Java	2018-07-09 09:25:51
10	Hidden user	1.22 s	Java	2018-02-25 01:59:26

#	User	Runtime	Language	Date
1	Adam Rankin	1.40 s	Kotlin	2023-10-12 20:44:57
2	Jacob Huebner	1.70 s	Kotlin	2020-06-23 04:09:44

#	User	Runtime	Language	Date
1	Ola Næss Kaldestad	1.90 s	PHP	2017-02-19 19:47:50

#	User	Runtime	Language	Date
1	Agis Daniels	1.26 s	Python 2	2020-04-02 16:03:25
2	Hidden user	1.27 s	Python 2	2018-02-03 00:02:38
3	Andreas Björklund	1.31 s	Python 2	2018-12-02 13:24:12
4	Catalin Popa	1.41 s	Python 2	2018-12-07 18:56:25
5	Bjørn Dons	1.44 s	Python 2	2018-12-07 19:05:18

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	0.43 s	Python 3	2021-02-02 08:21:07
2	Lukas Kerren	1.00 s	Python 3	2024-05-04 04:57:18
3	Taylor Wong	1.06 s	Python 3	2025-03-03 04:23:44
4	Taylor Wong	1.06 s	Python 3	2025-03-04 19:22:24
5	Rubiocai Programador	1.11 s	Python 3	2024-11-22 06:38:32
6	Thore Husfeldt	1.12 s	Python 3	2025-02-23 17:25:32
7	Neo blash	1.12 s	Python 3	2025-03-05 22:32:35
8	Nathan Care	1.12 s	Python 3	2025-04-24 17:18:26
9	Sander Oppen	1.14 s	Python 3	2024-10-10 17:30:40
10	Trym Kvitnes	1.16 s	Python 3	2025-02-10 14:45:27

#	User	Runtime	Language	Date
1	Yusuke Ichiki	1.59 s	Ruby	2022-05-13 08:45:02

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.04 s	Rust	2025-03-09 16:19:29
2	Hidden user	0.10 s	Rust	2022-12-10 14:14:33
3	藤原潮人	0.10 s	Rust	2023-07-14 03:35:27
4	Ahmad Sattar Atta	0.10 s	Rust	2023-10-03 19:28:29
5	Muhammad Rais Fathin Mudzakir	0.11 s	Rust	2021-05-16 09:57:05
6	Daniel Anker Hermansen	0.18 s	Rust	2024-05-23 19:37:47

#	User	Length	Language	Date
1	Ivan Petrov	903	C	2019-04-01 08:53:26
2	Aldehime	1055	C	2022-05-17 11:08:50
3	Hidden user	1290	C	2024-01-21 22:55:37
4	Svein Høgemo	1532	C	2018-02-28 12:08:03
5	Olav Røthe Bakken	1735	C	2017-01-28 20:16:28
6	Alexander Bilde Pedersen	1919	C	2023-05-18 02:58:03

#	User	Length	Language	Date
1	Tobias Bjerge Bang	25064	C#	2020-09-20 15:53:48

#	User	Length	Language	Date
1	Hua Jun	572	C++	2020-02-27 19:30:22
2	Yeung Man Tsung	575	C++	2022-11-22 08:13:22
3	blameazu	594	C++	2024-07-07 10:13:52
4	Zijian Zhou	616	C++	2021-02-02 13:07:47
5	Hidden user	617	C++	2024-11-08 02:40:58
6	Masatoshi Kato	638	C++	2022-05-17 16:12:04
7	ณัฐวุฒิ เจนศักดิ์ดา	653	C++	2024-01-17 00:40:36
8	Hidden user	655	C++	2025-02-03 20:17:48
9	Roger Chen	662	C++	2022-08-18 22:41:32
10	Hyunjun Lee	668	C++	2023-05-17 09:34:38

#	User	Length	Language	Date
1	Norbert Voelker	1841	Go	2023-07-10 11:12:39

#	User	Length	Language	Date
1	Birk Tjelmeland	928	Haskell	2018-01-31 10:06:38
2	Hidden user	1659	Haskell	2019-12-13 02:07:57

#	User	Length	Language	Date
1	Marc Dominic San Pedro	1360	Java	2023-05-23 04:04:54
2	Kevin Kauffman	1416	Java	2021-12-29 05:42:18
3	Jeremy Lim	1452	Java	2024-02-19 19:32:04
4	Josenildo Silva	1590	Java	2017-07-08 07:10:17
5	Hidden user	1659	Java	2022-03-12 18:36:39
6	Jack Zeng	1690	Java	2023-01-08 23:49:26
7	Hidden user	1754	Java	2018-02-25 01:26:33
8	Martijn Muijsers	1813	Java	2020-08-14 17:52:24
9	Sten Smirnov	1838	Java	2024-05-07 15:26:29
10	Christoffer Christoffersen	1869	Java	2022-10-05 17:11:34

#	User	Length	Language	Date
1	Adam Rankin	1017	Kotlin	2023-10-12 20:44:57
2	Jacob Huebner	2115	Kotlin	2020-06-23 04:12:15

#	User	Length	Language	Date
1	Ola Næss Kaldestad	1213	PHP	2017-05-11 18:02:16

#	User	Length	Language	Date
1	Hidden user	406	Python 2	2018-02-03 00:02:38
2	Andreas Björklund	726	Python 2	2018-12-02 13:24:12
3	Bjørn Dons	793	Python 2	2018-12-07 19:03:04
4	Agis Daniels	867	Python 2	2020-04-02 16:05:07
5	Catalin Popa	974	Python 2	2018-12-07 18:56:25

#	User	Length	Language	Date
1	Lukas Kerren	242	Python 3	2024-05-04 06:37:06
2	Oskar Haarklou Veileborg	277	Python 3	2021-02-02 08:14:45
3	Tony Kwan	429	Python 3	2023-02-03 00:10:36
4	Jakob Israelsen	470	Python 3	2021-10-03 22:27:44
5	Hidden user	485	Python 3	2025-04-24 17:39:03
6	Nicholas Russell Saerang	502	Python 3	2023-03-30 00:10:37
7	Rubiocai Programador	504	Python 3	2024-11-22 06:38:32
8	Njål Pedersen	511	Python 3	2025-01-28 13:36:05
9	Guan Yang Ze	529	Python 3	2021-02-07 06:21:27
10	Daniel Melendez	549	Python 3	2024-10-07 05:49:05

#	User	Length	Language	Date
1	Yusuke Ichiki	526	Ruby	2022-05-13 08:45:02

#	User	Length	Language	Date
1	Hidden user	1623	Rust	2022-12-10 14:14:33
2	藤原潮人	1634	Rust	2023-07-14 03:35:27
3	Ahmad Sattar Atta	2020	Rust	2023-10-03 19:30:10
4	Muhammad Rais Fathin Mudzakir	4450	Rust	2021-05-16 11:54:49
5	Vincent Lagerros	4813	Rust	2024-02-25 02:50:44
6	Daniel Anker Hermansen	27142	Rust	2024-05-23 19:37:47

Solution running time distribution