Problem M
Nested Dolls — Problem Statistics

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Submissions	3993
Accepted submissions	975
Submission ratio	24.42%
Authors	806
Full solves [?]	541
Full solve Ratio	67.12%

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	C	2026-03-21 20:24:01
2	Ivan Petrov	0.15 s	C	2019-04-01 06:53:26
3	Aldehime	0.17 s	C	2022-05-17 09:08:50
4	Mirel Cosulschi	0.17 s	C	2024-01-21 21:55:37
5	Alexander Bilde Pedersen	0.18 s	C	2023-05-18 00:58:03
6	Olav Røthe Bakken	0.21 s	C	2017-01-28 19:16:28
7	Svein Høgemo	0.21 s	C	2018-02-28 11:08:03

#	User	Runtime	Language	Date
1	Hidden user	0.21 s	C#	2026-03-21 20:26:15
2	Tobias Bjerge Bang	1.00 s	C#	2020-09-20 13:53:48

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	C++	2026-03-21 20:20:25
2	Hidden user	0.06 s	C++	2018-02-25 20:53:42
3	Agis Daniels	0.07 s	C++	2020-04-02 13:48:41
4	Roger Chen	0.08 s	C++	2022-08-19 14:40:10
5	Alberto Verdejo	0.08 s	C++	2023-03-31 08:23:48
6	Nicolaj Valsted	0.10 s	C++	2022-09-24 12:45:43
7	Dmitry Lyubshin	0.13 s	C++	2018-07-24 01:53:39
8	Hidden user	0.13 s	C++	2019-08-26 00:14:30
9	Jisan Shaikh	0.14 s	C++	2018-07-28 18:03:34
10	Antoni Guz	0.14 s	C++	2018-11-30 12:53:59

#	User	Runtime	Language	Date
1	Hidden user	0.07 s	Go	2026-03-21 20:48:15
2	Norbert Voelker	0.32 s	Go	2023-07-10 09:12:39

#	User	Runtime	Language	Date
1	Hidden user	1.01 s	Haskell	2026-03-21 17:13:06
2	Birk Tjelmeland	1.73 s	Haskell	2017-06-27 21:58:33
3	Hidden user	3.95 s	Haskell	2019-12-13 01:07:57

#	User	Runtime	Language	Date
1	Hidden user	0.33 s	Java	2026-03-21 20:29:02
2	Bjørn Dons	0.39 s	Java	2018-12-02 23:26:49
3	Josenildo Silva	0.54 s	Java	2017-07-08 05:10:17
4	Erik Tjøswold	0.81 s	Java	2018-02-03 17:29:02
5	Jeremy Lim	0.95 s	Java	2025-02-27 04:41:26
6	Jeremy Tan Kai Qun	1.06 s	Java	2019-09-29 22:33:08
7	Jonas Mossin Wagle	1.16 s	Java	2018-02-02 09:16:30
8	Fu Jin	1.17 s	Java	2018-07-21 07:48:20
9	Doug Goodman	1.20 s	Java	2018-03-11 17:57:25
10	Wu Zhen Rong	1.21 s	Java	2018-07-09 07:25:51

#	User	Runtime	Language	Date
1	Hidden user	0.51 s	Kotlin	2026-03-21 20:43:32
2	Adam Rankin	1.40 s	Kotlin	2023-10-12 18:44:57
3	Jacob Huebner	1.70 s	Kotlin	2020-06-23 02:09:44

#	User	Runtime	Language	Date
1	Hidden user	0.50 s	PHP	2026-03-21 20:52:19
2	Ola Næss Kaldestad	1.90 s	PHP	2017-02-19 18:47:50

#	User	Runtime	Language	Date
1	Hidden user	0.37 s	Python 2	2026-03-21 16:57:03
2	Agis Daniels	1.26 s	Python 2	2020-04-02 14:03:25
3	Hidden user	1.27 s	Python 2	2018-02-02 23:02:38
4	Andreas Björklund	1.31 s	Python 2	2018-12-02 12:24:12
5	Catalin Popa	1.41 s	Python 2	2018-12-07 17:56:25
6	Bjørn Dons	1.44 s	Python 2	2018-12-07 18:05:18

#	User	Runtime	Language	Date
1	Isaac Lee	0.33 s	Python 3	2025-08-15 00:09:34
2	Hidden user	0.33 s	Python 3	2026-03-21 16:54:55
3	Oskar Haarklou Veileborg	0.43 s	Python 3	2021-02-02 07:21:07
4	Lukas Kerren	1.00 s	Python 3	2024-05-04 02:57:18
5	Taylor Wong	1.06 s	Python 3	2025-03-03 03:23:44
6	Taylor Wong	1.06 s	Python 3	2025-03-04 18:22:24
7	Rubiocai Programador	1.11 s	Python 3	2024-11-22 05:38:32
8	Thore Husfeldt	1.12 s	Python 3	2025-02-23 16:25:32
9	Neo blash	1.12 s	Python 3	2025-03-05 21:32:35
10	Nathan Care	1.12 s	Python 3	2025-04-24 15:18:26

#	User	Runtime	Language	Date
1	Hidden user	0.66 s	Ruby	2026-03-21 20:54:20
2	Yusuke Ichiki	1.59 s	Ruby	2022-05-13 06:45:02

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.04 s	Rust	2025-03-09 15:19:29
2	Hidden user	0.04 s	Rust	2026-03-21 20:21:29
3	Hidden user	0.10 s	Rust	2022-12-10 13:14:33
4	藤原潮人	0.10 s	Rust	2023-07-14 01:35:27
5	Ahmad Sattar Atta	0.10 s	Rust	2023-10-03 17:28:29
6	Muhammad Rais Fathin Mudzakir	0.11 s	Rust	2021-05-16 07:57:05
7	Daniel Anker Hermansen	0.18 s	Rust	2024-05-23 17:37:47

#	User	Runtime	Language	Date
1	Hidden user	0.16 s	TypeScript	2026-03-22 12:22:32

#	User	Length	Language	Date
1	Ivan Petrov	903	C	2019-04-01 06:53:26
2	Aldehime	1055	C	2022-05-17 09:08:50
3	Mirel Cosulschi	1290	C	2024-01-21 21:55:37
4	Svein Høgemo	1532	C	2018-02-28 11:08:03
5	Olav Røthe Bakken	1735	C	2017-01-28 19:16:28
6	Alexander Bilde Pedersen	1919	C	2023-05-18 00:57:46
7	Hidden user	3711	C	2026-03-21 20:24:01

#	User	Length	Language	Date
1	Hidden user	4861	C#	2026-03-21 20:26:15
2	Tobias Bjerge Bang	25064	C#	2020-09-20 13:53:48

#	User	Length	Language	Date
1	Hua Jun	572	C++	2020-02-27 18:30:22
2	Yeung Man Tsung	575	C++	2022-11-22 07:13:22
3	blameazu	594	C++	2024-07-07 08:13:52
4	Zijian Zhou	616	C++	2021-02-02 12:07:47
5	Mugeon Kim	617	C++	2024-11-08 01:40:58
6	Masatoshi Kato	638	C++	2022-05-17 14:12:04
7	ณัฐวุฒิ เจนศักดิ์ดา	653	C++	2024-01-16 23:40:36
8	Hidden user	655	C++	2025-02-03 19:17:48
9	Roger Chen	662	C++	2022-08-18 20:41:32
10	Hyunjun Lee	668	C++	2023-05-17 07:34:38

#	User	Length	Language	Date
1	Norbert Voelker	1841	Go	2023-07-10 09:12:39
2	Hidden user	2672	Go	2026-03-21 20:48:15

#	User	Length	Language	Date
1	Birk Tjelmeland	928	Haskell	2018-01-31 09:06:38
2	Hidden user	1659	Haskell	2019-12-13 01:07:57
3	Hidden user	2005	Haskell	2026-03-21 17:13:06

#	User	Length	Language	Date
1	Marc Dominic San Pedro	1360	Java	2023-05-23 02:04:54
2	Kevin Kauffman	1416	Java	2021-12-29 04:42:18
3	Jeremy Lim	1452	Java	2024-02-19 18:32:04
4	Josenildo Silva	1590	Java	2017-07-08 05:10:17
5	Hidden user	1659	Java	2022-03-12 17:36:39
6	Jack Zeng	1690	Java	2023-01-08 22:49:26
7	Hidden user	1754	Java	2018-02-25 00:26:33
8	Martijn Muijsers	1813	Java	2020-08-14 15:52:24
9	Sten Smirnov	1838	Java	2024-05-07 13:26:29
10	Christoffer Christoffersen	1869	Java	2022-10-05 15:11:34

#	User	Length	Language	Date
1	Adam Rankin	1017	Kotlin	2023-10-12 18:44:57
2	Jacob Huebner	2115	Kotlin	2020-06-23 02:12:15
3	Hidden user	2844	Kotlin	2026-03-21 20:43:32

#	User	Length	Language	Date
1	Ola Næss Kaldestad	1213	PHP	2017-05-11 16:02:16
2	Hidden user	1325	PHP	2026-03-21 20:52:19

#	User	Length	Language	Date
1	Hidden user	406	Python 2	2018-02-02 23:02:38
2	Hidden user	674	Python 2	2026-03-21 16:57:03
3	Andreas Björklund	726	Python 2	2018-12-02 12:24:12
4	Bjørn Dons	793	Python 2	2018-12-07 18:03:04
5	Agis Daniels	867	Python 2	2020-04-02 14:05:07
6	Catalin Popa	974	Python 2	2018-12-07 17:56:25

#	User	Length	Language	Date
1	Lukas Kerren	242	Python 3	2024-05-04 04:37:06
2	Oskar Haarklou Veileborg	277	Python 3	2021-02-02 07:14:45
3	Solace Thomas	415	Python 3	2025-11-12 03:16:31
4	Tony Kwan	429	Python 3	2023-02-02 23:10:36
5	Hrant Hovhannisyan	458	Python 3	2025-12-23 05:50:05
6	Jakob Israelsen	470	Python 3	2021-10-03 20:27:44
7	Felix Fatum	479	Python 3	2026-03-14 22:40:56
8	Hidden user	485	Python 3	2025-04-24 15:39:03
9	Nicholas Russell Saerang	502	Python 3	2023-03-29 22:10:37
10	Tassilo Radon	502	Python 3	2025-10-06 15:57:17

#	User	Length	Language	Date
1	Yusuke Ichiki	526	Ruby	2022-05-13 06:45:02
2	Hidden user	860	Ruby	2026-03-21 20:54:20

#	User	Length	Language	Date
1	Hidden user	1623	Rust	2022-12-10 13:14:33
2	藤原潮人	1642	Rust	2023-07-14 01:35:27
3	Ahmad Sattar Atta	2020	Rust	2023-10-03 17:30:10
4	Muhammad Rais Fathin Mudzakir	4450	Rust	2021-05-16 09:54:49
5	Hidden user	4811	Rust	2026-03-21 20:21:29
6	Vincent Lagerros	4823	Rust	2024-02-25 01:50:44
7	Daniel Anker Hermansen	27156	Rust	2024-05-23 17:37:47

#	User	Length	Language	Date
1	Hidden user	2645	TypeScript	2026-03-21 21:10:25

Solution running time distribution