Problem I
Mega Inversions — Problem Statistics

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Submissions	5518
Accepted submissions	2369
Submission ratio	42.93%
Authors	1986
Full solves [?]	1759
Full solve Ratio	88.57%

#	User	Runtime	Language	Date
1	Thibault Raffaillac	0.01 s	C	2014-02-28 22:56:43
2	Bergur Snorrason	0.01 s	C	2019-07-05 17:39:14
3	Alexander Bilde Pedersen	0.01 s	C	2023-03-23 21:11:29
4	Marcus Larsson	0.02 s	C	2013-02-05 23:12:59
5	Lingwei Kong	0.02 s	C	2014-02-08 19:11:38
6	Lingwei Kong	0.02 s	C	2014-09-28 14:23:21
7	Muhammad Irham Rasyidi	0.02 s	C	2018-03-19 10:02:52
8	Jón Steinn Elíasson	0.02 s	C	2020-05-26 15:49:55
9	Albert Ye	0.02 s	C	2020-10-14 16:30:55
10	Edwar Vargas Herhuay	0.02 s	C	2021-12-24 03:40:31

#	User	Runtime	Language	Date
1	Simon Ståhlberg	0.05 s	C#	2014-01-29 12:58:50
2	Emiel Duys	0.10 s	C#	2018-03-24 14:38:37

#	User	Runtime	Language	Date
1	Kristoffer Hallqvist	0.01 s	C++	2014-02-04 14:21:21
2	Bjarki Ágúst Guðmundsson	0.01 s	C++	2014-02-06 22:34:41
3	Mahder Gebremedhin	0.01 s	C++	2014-02-08 19:48:17
4	Emanuel Gedin	0.01 s	C++	2014-07-02 16:07:33
5	Vipin Singh	0.01 s	C++	2015-05-15 11:21:35
6	Timon Knigge	0.01 s	C++	2015-08-23 10:34:58
7	Fredrik Hernqvist	0.01 s	C++	2015-10-29 12:02:59
8	Chuck Fernández	0.01 s	C++	2016-09-02 22:04:16
9	Florian Rödig	0.01 s	C++	2016-11-15 19:40:50
10	Ola Kaldestad	0.01 s	C++	2017-03-16 23:32:03

#	User	Runtime	Language	Date
1	Norbert Voelker	0.22 s	Go	2021-12-09 19:15:10

#	User	Runtime	Language	Date
1	Morten Lohne	0.02 s	Haskell	2017-03-21 01:26:10
2	Ryan Chew	0.02 s	Haskell	2019-01-23 05:07:14
3	Hidden user	0.02 s	Haskell	2022-02-24 08:07:18

#	User	Runtime	Language	Date
1	Frank	0.07 s	Java	2025-08-15 03:45:47
2	Hà Minh Ngọc	0.08 s	Java	2015-11-06 12:48:17
3	Nguyễn Mạnh Phúc	0.08 s	Java	2015-11-07 06:42:49
4	Alvin Lee	0.08 s	Java	2025-10-01 15:04:04
5	Hidden user	0.10 s	Java	2014-08-12 21:45:33
6	Crystal Sharpe	0.10 s	Java	2021-03-25 06:34:55
7	Bjørn Dons	0.11 s	Java	2018-10-19 23:16:03
8	Altu Khan	0.14 s	Java	2019-12-25 21:39:11
9	Hidden user	0.15 s	Java	2016-09-25 14:59:32
10	Kurtis Van Gent	0.16 s	Java	2016-04-07 18:52:20

#	User	Runtime	Language	Date
1	Ola Næss Kaldestad	0.04 s	JavaScript (SpiderMonkey)	2017-05-11 13:59:16
2	Ola Kaldestad	0.08 s	JavaScript (SpiderMonkey)	2017-03-17 18:46:28
3	Christian Pilegaard Cederquist	0.19 s	JavaScript (SpiderMonkey)	2023-06-07 06:11:40

#	User	Runtime	Language	Date
1	Allen Guan	0.39 s	Kotlin	2022-04-08 07:58:53
2	Phường Lên	0.40 s	Kotlin	2020-05-24 03:54:31
3	Benjamin Ye	0.44 s	Kotlin	2023-02-12 19:48:39
4	Danny Mittal	0.46 s	Kotlin	2025-10-13 21:22:05
5	Jacob Huebner	0.53 s	Kotlin	2020-03-11 20:55:56
6	Magnus Tønnessen	0.54 s	Kotlin	2024-08-02 14:10:29

#	User	Runtime	Language	Date
1	Michael Hoffmann	0.08 s	Python 2	2017-02-20 22:31:42
2	Don Nguyen	0.09 s	Python 2	2016-09-23 18:49:06
3	Asger Hautop Drewsen	0.09 s	Python 2	2018-01-31 22:24:04
4	Torstein Strømme	0.10 s	Python 2	2017-11-23 17:13:44
5	James Lawson	0.11 s	Python 2	2018-12-17 18:01:15
6	Frederik Højholt	0.12 s	Python 2	2016-09-23 09:21:41
7	Andreas Björklund	0.12 s	Python 2	2018-11-29 14:19:12
8	Knut Anders Stokke	0.14 s	Python 2	2017-03-19 14:11:49
9	Anton Lyxell	0.14 s	Python 2	2019-12-08 23:14:43
10	Maj Stenmark	0.16 s	Python 2	2018-05-12 19:32:26

#	User	Runtime	Language	Date
1	Petr	0.08 s	Python 3	2025-12-01 08:07:24
2	Pedro Vinícius de Araújo Barreto	0.09 s	Python 3	2024-10-08 20:12:58
3	Tom	0.09 s	Python 3	2025-12-22 16:07:15
4	台北六中	0.09 s	Python 3	2026-03-14 14:05:08
5	Hidden user	0.10 s	Python 3	2021-11-23 19:08:02
6	Erlend H Dahl	0.10 s	Python 3	2022-03-11 10:59:18
7	Gergo Gyori	0.10 s	Python 3	2023-03-21 16:17:50
8	Andreas Kongstad	0.10 s	Python 3	2023-03-21 17:00:26
9	Raymond Christopher	0.10 s	Python 3	2024-01-07 06:51:13
10	Hidden user	0.10 s	Python 3	2024-02-29 14:23:18

#	User	Runtime	Language	Date
1	Thomas Feld	0.19 s	Ruby	2025-11-05 14:42:41
2	Frederik Petersen	0.28 s	Ruby	2025-03-21 11:42:07
3	Andreas Severin Hauch Trøstrup	0.41 s	Ruby	2023-04-29 17:53:16

#	User	Runtime	Language	Date
1	Adrian Borup	0.01 s	Rust	2023-03-21 17:17:11
2	Bas Dirks	0.01 s	Rust	2023-12-29 13:30:46
3	Vincent Lagerros	0.01 s	Rust	2024-08-31 22:28:14
4	Emil Hultcrantz	0.01 s	Rust	2025-02-04 08:40:50
5	Jonas Ulsnes Jørgensen	0.01 s	Rust	2025-03-24 19:21:14
6	Ming Kang	0.01 s	Rust	2025-06-06 06:28:04
7	Yoeri Otten	0.06 s	Rust	2022-02-22 00:45:31
8	Ole Vik Lysne	0.06 s	Rust	2024-03-05 23:01:33
9	Hidden user	0.09 s	Rust	2025-07-15 18:00:46

#	User	Runtime	Language	Date
1	Felix Stenberg	0.01 s	Zig	2025-02-04 13:33:30

#	User	Length	Language	Date
1	Albert Ye	752	C	2020-10-14 16:30:55
2	Matt	800	C	2022-04-01 16:20:33
3	Thibault Raffaillac	858	C	2014-02-28 22:47:24
4	Ivan Petrov	895	C	2019-07-17 13:12:17
5	Alexander Bilde Pedersen	962	C	2023-03-21 21:00:19
6	Krit Ponjanthuk	1010	C	2024-11-23 04:35:31
7	Jesper Öqvist	1163	C	2018-05-14 14:53:20
8	Marcus Larsson	1337	C	2013-02-05 23:12:59
9	Olav Røthe Bakken	1399	C	2017-03-19 18:25:55
10	Muhammad Irham Rasyidi	1460	C	2018-03-19 10:02:52

#	User	Length	Language	Date
1	Simon Ståhlberg	1700	C#	2014-01-29 12:58:50
2	Emiel Duys	2179	C#	2018-03-24 14:38:37

#	User	Length	Language	Date
1	Hoan Tin	481	C++	2025-08-02 01:44:14
2	Phan Hưng	493	C++	2025-08-02 01:56:11
3	Shashank Bhatt	527	C++	2022-12-29 00:20:15
4	Tuukka Korhonen	537	C++	2022-02-17 09:45:16
5	40_Suppakrit_Wanggripsukon	542	C++	2024-05-26 10:57:21
6	ปรีชากร ยาสมร	549	C++	2024-04-28 18:02:26
7	William Gan	551	C++	2018-02-05 07:00:36
8	Đk Nguyễn	572	C++	2019-10-17 12:17:51
9	Daniel de Matos	579	C++	2023-01-23 17:01:11
10	Vinh Alex	596	C++	2024-03-26 03:50:42

#	User	Length	Language	Date
1	Norbert Voelker	2698	Go	2022-02-21 21:17:36

#	User	Length	Language	Date
1	Ryan Chew	1207	Haskell	2019-01-22 10:10:30
2	Morten Lohne	1738	Haskell	2017-03-21 01:06:36
3	Hidden user	2906	Haskell	2022-02-24 07:04:39

#	User	Length	Language	Date
1	Crystal Sharpe	888	Java	2021-03-25 06:34:55
2	Mouhssine Assaoud	1001	Java	2017-10-22 05:44:24
3	Kurtis Van Gent	1111	Java	2016-04-07 18:52:20
4	V Daita	1148	Java	2021-12-03 03:01:00
5	Florian Rödig	1151	Java	2016-11-15 19:39:55
6	Brett Fazio	1206	Java	2019-01-05 18:52:52
7	Andy Phan	1245	Java	2019-01-05 18:26:01
8	Hamza Manzoor	1280	Java	2019-02-15 00:34:43
9	Ethan Li	1282	Java	2021-02-12 02:04:46
10	Bjarke Brodin	1334	Java	2021-02-17 13:58:02

#	User	Length	Language	Date
1	Ola Kaldestad	572	JavaScript (SpiderMonkey)	2017-03-17 19:05:08
2	Ola Næss Kaldestad	810	JavaScript (SpiderMonkey)	2017-05-11 13:59:16
3	Christian Pilegaard Cederquist	2007	JavaScript (SpiderMonkey)	2023-06-07 06:11:40

#	User	Length	Language	Date
1	Benjamin Ye	926	Kotlin	2023-02-12 19:48:39
2	Magnus Tønnessen	938	Kotlin	2024-08-02 14:10:29
3	Danny Mittal	985	Kotlin	2025-10-13 21:22:05
4	Jacob Huebner	1290	Kotlin	2020-03-11 20:55:56
5	Allen Guan	1539	Kotlin	2022-04-08 07:58:53
6	Phường Lên	3662	Kotlin	2020-05-24 03:54:31

#	User	Length	Language	Date
1	Michael Hoffmann	522	Python 2	2017-02-20 22:31:42
2	Asger Hautop Drewsen	564	Python 2	2018-01-31 22:24:04
3	Kevin Tang	649	Python 2	2019-10-22 21:35:34
4	Andreas Björklund	676	Python 2	2018-11-29 14:19:12
5	Don Nguyen	746	Python 2	2016-09-23 18:49:06
6	Frederik Højholt	794	Python 2	2016-09-23 09:21:41
7	Yupeng Gu	835	Python 2	2018-05-06 04:27:19
8	Enzio Kam Hai Hong	995	Python 2	2019-08-24 08:47:55
9	Knut Anders Stokke	1022	Python 2	2017-03-19 14:11:49
10	Anton Lyxell	1031	Python 2	2019-12-08 23:17:00

#	User	Length	Language	Date
1	成俊宏	293	Python 3	2023-04-20 16:57:35
2	Noah Hessen Bjerke	368	Python 3	2025-11-08 20:06:34
3	Petr	440	Python 3	2025-12-01 08:10:48
4	Wilbert Chu	444	Python 3	2024-09-24 22:45:22
5	Krish Shah	449	Python 3	2025-10-10 01:35:58
6	Jonathan Dastrup	451	Python 3	2024-09-16 22:00:15
7	Srikavin S	470	Python 3	2026-02-04 16:47:43
8	Christian Lebeda	480	Python 3	2021-02-10 21:14:49
9	Gergo Gyori	509	Python 3	2023-03-21 16:17:50
10	Michael Hoffmann	519	Python 3	2017-02-20 22:30:01

#	User	Length	Language	Date
1	Thomas Feld	180	Ruby	2025-11-05 14:55:37
2	Andreas Severin Hauch Trøstrup	528	Ruby	2023-04-29 17:39:04
3	Frederik Petersen	1033	Ruby	2025-03-21 11:42:07

#	User	Length	Language	Date
1	Bas Dirks	1096	Rust	2023-12-29 13:30:46
2	Ole Vik Lysne	1607	Rust	2024-03-07 16:55:26
3	Jonas Ulsnes Jørgensen	1649	Rust	2025-03-24 19:21:14
4	Adrian Borup	1685	Rust	2023-03-21 19:11:15
5	Ming Kang	1689	Rust	2025-06-06 06:28:04
6	Emil Hultcrantz	2025	Rust	2025-02-04 08:40:50
7	Yoeri Otten	3865	Rust	2022-02-22 00:45:31
8	Hidden user	8601	Rust	2025-07-15 18:00:46
9	Vincent Lagerros	18453	Rust	2024-08-31 22:28:14

#	User	Length	Language	Date
1	Felix Stenberg	6468	Zig	2025-02-04 13:33:30

Solution running time distribution