Problem I
Introspective Caching — Problem Statistics

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Submissions	4364
Accepted submissions	915
Submission ratio	20.97%
Authors	569
Full solves [?]	438
Full solve Ratio	76.98%

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	C	2022-12-18 21:45:59
2	Ivan Petrov	0.05 s	C	2019-11-12 14:08:09

#	User	Runtime	Language	Date
1	masosz	0.17 s	C#	2015-03-30 20:45:36

#	User	Runtime	Language	Date
1	Mattias Tiger	0.01 s	C++	2013-02-11 11:23:43
2	Carl Thomé	0.01 s	C++	2014-01-26 21:33:02
3	Philip Sköld	0.01 s	C++	2014-01-26 21:38:53
4	Frej Connolly	0.01 s	C++	2014-01-29 11:55:03
5	Leran Cai	0.01 s	C++	2014-01-29 12:09:09
6	Hidden user	0.01 s	C++	2015-09-15 05:10:55
7	Carl Einarson	0.01 s	C++	2016-01-26 17:30:52
8	Johannes Olegård	0.01 s	C++	2016-09-01 09:22:42
9	Josenildo Silva	0.01 s	C++	2016-12-24 00:36:25
10	Henrik Adolfsson	0.01 s	C++	2017-02-02 13:04:36

#	User	Runtime	Language	Date
1	Norbert Voelker	0.03 s	Go	2023-07-20 16:38:54
2	n k	0.76 s	Go	2025-01-28 20:40:28

#	User	Runtime	Language	Date
1	Santiago Rivas	0.18 s	Java	2024-12-13 20:29:15
2	Nicholas Russell Saerang	0.19 s	Java	2022-02-22 20:39:44
3	Rikard Blixt	0.20 s	Java	2014-01-24 16:30:17
4	Abegail Lacsena	0.20 s	Java	2023-08-06 22:02:54
5	Jimmy Mårdell	0.21 s	Java	2014-12-23 18:48:09
6	Jac Escobedo	0.21 s	Java	2023-07-28 20:25:52
7	Aliza Mae Maquinana	0.21 s	Java	2023-08-01 06:01:50
8	Jonas Haglund	0.22 s	Java	2014-01-29 10:23:02
9	Simon Klein	0.24 s	Java	2013-01-06 17:19:06
10	Jens Ståhl	0.24 s	Java	2014-01-22 15:36:37

#	User	Runtime	Language	Date
1	Andreas Björklund	0.21 s	Python 2	2019-04-03 20:06:55
2	Milosz Wielondek	0.23 s	Python 2	2016-09-13 22:04:39
3	Zheng Dai	0.27 s	Python 2	2017-03-26 00:30:19
4	Andreas Serra	0.34 s	Python 2	2014-01-21 02:56:00
5	Oskar Larsson	0.44 s	Python 2	2019-04-15 09:11:45
6	Erik Sillén	0.62 s	Python 2	2016-08-31 14:04:11

#	User	Runtime	Language	Date
1	Petr	0.13 s	Python 3	2025-08-06 00:49:44
2	Leif Eriksson	0.17 s	Python 3	2025-02-28 15:25:13
3	Oskar Haarklou Veileborg	0.18 s	Python 3	2021-02-17 20:13:07
4	Shuyang Bian	0.20 s	Python 3	2023-09-27 00:11:25
5	Maj Stenmark	0.22 s	Python 3	2020-11-08 19:52:27
6	Aryah Rao	0.22 s	Python 3	2025-04-03 04:25:02
7	Anton Nilsson	0.22 s	Python 3	2025-05-31 12:51:44
8	Jorke de Vlas	0.23 s	Python 3	2024-01-24 20:34:18
9	Filip Edberger	0.26 s	Python 3	2024-02-01 16:24:43
10	Kahf Hussain	0.26 s	Python 3	2024-03-26 21:37:22

#	User	Runtime	Language	Date
1	Artur Khuziakhmetov	0.02 s	Rust	2023-08-04 12:04:53
2	Muhammad Rais Fathin Mudzakir	0.03 s	Rust	2021-05-30 18:46:00
3	Daniel Anker Hermansen	0.03 s	Rust	2023-06-13 22:01:39
4	Isak Jägberg	0.04 s	Rust	2023-04-17 15:32:04
5	Alexander Berntsson	0.04 s	Rust	2025-02-05 18:40:35
6	Pahlevi Fikri Auliya	0.06 s	Rust	2020-11-06 03:40:49

#	User	Length	Language	Date
1	Hidden user	2172	C	2022-12-18 21:45:59
2	Ivan Petrov	18582	C	2019-11-12 14:08:09

#	User	Length	Language	Date
1	masosz	14753	C#	2015-03-30 20:45:36

#	User	Length	Language	Date
1	Nils Jakobsson	503	C++	2024-01-26 02:39:12
2	Johan Wind	604	C++	2018-04-15 15:01:18
3	Evan Michael Bailey	610	C++	2023-08-29 06:23:35
4	David Wärn	646	C++	2016-03-08 11:48:54
5	Marc Phua	701	C++	2019-12-15 10:49:12
6	William Gan	711	C++	2018-02-09 17:52:45
7	Hyunjun Lee	729	C++	2022-11-11 23:53:00
8	Johan Sannemo	751	C++	2013-01-06 15:01:51
9	Gustavo Fadel	794	C++	2024-12-02 21:19:36
10	Artemis Ngoh	806	C++	2022-09-14 05:23:03

#	User	Length	Language	Date
1	n k	2087	Go	2025-01-28 20:40:28
2	Norbert Voelker	5107	Go	2023-07-20 16:38:54

#	User	Length	Language	Date
1	Nguyễn Mạnh Phúc	1237	Java	2016-10-19 11:41:54
2	Abdelrahman Mokbel	1267	Java	2022-10-03 03:23:10
3	Doug Goodman	1314	Java	2018-01-06 15:48:24
4	Alexandre Loiko	1519	Java	2013-01-12 13:44:46
5	Alex Loiko	1565	Java	2015-07-05 09:49:11
6	Anton Hansson	1788	Java	2009-09-15 12:55:08
7	Mitch Price	1816	Java	2017-02-18 04:52:30
8	Fabian Bergmark	1925	Java	2017-12-13 22:23:42
9	Danniel Alcantara	1926	Java	2024-03-01 01:39:06
10	Jaycent Sarion	2057	Java	2023-08-02 11:12:08

#	User	Length	Language	Date
1	Andreas Björklund	468	Python 2	2019-04-03 20:06:55
2	Erik Sillén	833	Python 2	2016-08-31 14:04:11
3	Milosz Wielondek	873	Python 2	2016-09-13 22:04:39
4	Oskar Larsson	923	Python 2	2019-04-15 09:11:45
5	Zheng Dai	996	Python 2	2017-03-26 00:30:19
6	Andreas Serra	3932	Python 2	2014-01-21 03:13:31

#	User	Length	Language	Date
1	Anton Nilsson	296	Python 3	2025-05-31 12:57:14
2	Jeremy Tuloup	443	Python 3	2015-09-23 00:01:32
3	Jorke de Vlas	529	Python 3	2024-01-24 20:34:18
4	Oskar Haarklou Veileborg	630	Python 3	2021-02-17 20:13:07
5	Petr	661	Python 3	2025-08-06 00:54:35
6	Nicholas Russell Saerang	760	Python 3	2022-02-22 20:52:32
7	Thore Husfeldt	785	Python 3	2023-09-04 09:45:21
8	Martin Aumüller	842	Python 3	2019-11-16 20:19:25
9	Björn Detterfelt	849	Python 3	2019-02-06 13:03:42
10	Kahf Hussain	869	Python 3	2024-03-26 21:37:22

#	User	Length	Language	Date
1	Artur Khuziakhmetov	963	Rust	2023-08-04 12:08:26
2	Isak Jägberg	2419	Rust	2023-04-17 15:32:04
3	Alexander Berntsson	2937	Rust	2025-02-05 18:40:35
4	Pahlevi Fikri Auliya	3998	Rust	2020-11-06 03:40:49
5	Muhammad Rais Fathin Mudzakir	4909	Rust	2021-05-30 18:45:28
6	Daniel Anker Hermansen	30428	Rust	2023-06-13 22:01:39

Solution running time distribution