Problem A
Paradox With Averages (Hard) — Problem Statistics

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Submissions	4667
Accepted submissions	1907
Submission ratio	40.86%
Authors	1680
Full solves [?]	1496
Full solve Ratio	89.05%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.01 s	C	2018-10-30 11:57:28
2	Aked Hindi	0.03 s	C	2013-02-06 00:54:25
3	Raymond Yang	0.04 s	C	2018-07-06 08:40:12
4	Qi Ji	0.04 s	C	2018-08-10 18:14:22
5	Bernat Gasull i Bonamusa	0.04 s	C	2018-09-01 01:53:12
6	William Chen	0.04 s	C	2019-05-01 02:50:51
7	Andrew Roberts	0.04 s	C	2019-05-31 22:50:57
8	Christian Lindeström	0.05 s	C	2016-09-05 13:37:18
9	Gustav Hedengran	0.05 s	C	2016-11-18 14:29:05
10	Hidden user	0.05 s	C	2016-11-19 10:44:35

#	User	Runtime	Language	Date
1	Julio Cesar	0.13 s	C#	2025-06-20 23:33:42
2	Joel Marcos Villarroel Molina	0.13 s	C#	2025-06-26 15:53:07
3	Duelene Olson	0.18 s	C#	2016-08-19 14:46:23
4	Jacob Aufdenberg	0.18 s	C#	2019-05-15 20:59:28
5	Andriy Zyevakov	0.20 s	C#	2016-11-11 21:16:47
6	Anej Jereb	0.20 s	C#	2016-12-12 14:04:58
7	Nils Lenart	0.21 s	C#	2020-03-24 10:59:29
8	Cyril Jeanguenat	0.22 s	C#	2022-10-20 17:49:11
9	Robert Warnestam	0.25 s	C#	2021-03-27 16:02:01
10	Viktor Máni Mönster	0.31 s	C#	2018-07-28 23:49:04

#	User	Runtime	Language	Date
1	Daniel Schemmel	0.01 s	C++	2016-10-03 23:40:10
2	Grae Yeandle	0.01 s	C++	2016-12-19 11:18:04
3	Hidden user	0.01 s	C++	2017-08-15 09:41:02
4	Maciej Goszczycki	0.01 s	C++	2017-11-10 02:07:23
5	Donald Dong	0.01 s	C++	2018-01-03 04:01:16
6	Antoni Guz	0.01 s	C++	2018-02-13 21:40:59
7	Lee Geng Yu	0.01 s	C++	2018-02-17 05:22:58
8	Kieran Horgan	0.01 s	C++	2018-05-17 22:26:53
9	Eyleifur Bjarkason	0.01 s	C++	2019-01-07 17:34:07
10	Garðar Ingvarsson	0.01 s	C++	2019-04-23 03:57:00

#	User	Runtime	Language	Date
1	Norbert Voelker	0.07 s	Go	2021-07-22 01:03:29
2	Nathan Lee	0.21 s	Go	2025-09-11 13:57:57

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.06 s	Haskell	2024-11-06 16:33:39
2	Isaac Arvestad	0.07 s	Haskell	2019-01-12 17:01:44
3	Jan Hrček	0.07 s	Haskell	2021-04-11 09:59:55
4	Hidden user	0.42 s	Haskell	2021-06-03 10:45:55
5	David Wärn	0.96 s	Haskell	2015-06-03 22:19:57

#	User	Runtime	Language	Date
1	Winston Cheung	0.09 s	Java	2017-01-15 01:08:11
2	Sven Rönnbäck	0.10 s	Java	2022-01-23 19:48:10
3	Jan Štola	0.11 s	Java	2015-05-24 23:24:00
4	Bjørn Dons	0.11 s	Java	2018-11-03 21:35:23
5	Samuel Klingström	0.11 s	Java	2020-09-11 12:51:37
6	Duncan Page	0.16 s	Java	2018-04-05 23:08:48
7	Aurélien Pepin	0.18 s	Java	2020-04-22 13:26:00
8	Eyleifur Bjarkason	0.19 s	Java	2019-01-07 17:31:54
9	Qi Ji	0.25 s	Java	2018-08-10 18:22:18
10	Simon Klein	0.27 s	Java	2012-05-02 17:24:04

#	User	Runtime	Language	Date
1	Sander Hellesø	0.22 s	JavaScript (Node.js)	2019-04-25 04:43:33
2	Stephanie Keck	0.73 s	JavaScript (Node.js)	2020-01-30 21:44:12
3	Mikael Fiala-Lundström	0.92 s	JavaScript (Node.js)	2021-06-20 11:13:40

#	User	Runtime	Language	Date
1	Zachary DeStefano	0.09 s	JavaScript (SpiderMonkey)	2018-01-23 23:08:55
2	Bjørn Chr. Soltvedt	0.12 s	JavaScript (SpiderMonkey)	2016-04-27 09:23:39
3	Christian Pilegaard Cederquist	0.13 s	JavaScript (SpiderMonkey)	2023-04-10 08:30:55
4	Zach Tschetter	0.16 s	JavaScript (SpiderMonkey)	2023-05-25 00:01:30

#	User	Runtime	Language	Date
1	Hidden user	0.69 s	Julia	2025-03-16 06:56:54
2	Timothy Gaede	0.70 s	Julia	2024-09-03 14:10:22
3	Jason Clarke	0.75 s	Julia	2024-02-22 17:50:26

#	User	Runtime	Language	Date
1	Jesper Bech Christensen	0.49 s	Kotlin	2023-09-24 22:11:18
2	Adam Koprowski	0.72 s	Kotlin	2021-03-20 17:57:03

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.06 s	Pascal	2019-12-06 16:30:02

#	User	Runtime	Language	Date
1	Hidden user	0.09 s	Python 2	2012-10-10 21:40:07
2	Kristmundur Agust	0.09 s	Python 2	2015-03-15 23:13:28
3	Team Baud	0.09 s	Python 2	2015-08-18 18:12:08
4	Johan Nilsson	0.09 s	Python 2	2015-10-04 11:58:55
5	Lars Tveito	0.09 s	Python 2	2015-11-15 17:32:44
6	Marko Lazic	0.09 s	Python 2	2016-07-31 18:22:43
7	Jaime López	0.09 s	Python 2	2017-12-01 23:07:48
8	Jesper Öqvist	0.09 s	Python 2	2018-11-01 23:13:31
9	Hermon Mulat	0.09 s	Python 2	2018-12-03 04:30:57
10	Johan Lyts	0.09 s	Python 2	2019-04-10 13:50:38

#	User	Runtime	Language	Date
1	Vyas Narasimhan	0.11 s	Python 3	2022-09-28 00:14:51
2	Jake Manning	0.11 s	Python 3	2025-01-25 00:26:33
3	Hidden user	0.11 s	Python 3	2025-01-25 23:43:24
4	Hidden user	0.11 s	Python 3	2025-03-18 16:51:06
5	DEEPANSHU D.	0.11 s	Python 3	2025-03-19 16:01:50
6	Joey Pabalan	0.11 s	Python 3	2025-03-27 00:26:50
7	Dominic Berzin Chua Way Gin	0.11 s	Python 3	2025-04-18 10:47:21
8	Benjamin MacDougall	0.12 s	Python 3	2021-07-28 22:07:57
9	Hidden user	0.12 s	Python 3	2022-06-06 15:39:14
10	Wouter Dijkstra	0.12 s	Python 3	2022-07-01 18:28:09

#	User	Runtime	Language	Date
1	Hidden user	0.17 s	Ruby	2019-02-27 17:51:11
2	Erik Rydbert	0.18 s	Ruby	2016-07-11 05:00:32
3	Macdara mac an tSionnaigh	0.18 s	Ruby	2019-10-02 01:40:35
4	Casper Christensen	0.22 s	Ruby	2016-03-10 18:46:15
5	Thomas Feld	0.27 s	Ruby	2023-03-31 11:21:56

#	User	Runtime	Language	Date
1	Artur Khuziakhmetov	0.01 s	Rust	2022-07-15 11:51:46
2	Vincent Lagerros	0.01 s	Rust	2024-08-25 23:51:23
3	Daniel Anker Hermansen	0.02 s	Rust	2023-08-26 12:35:15
4	Bas Dirks	0.03 s	Rust	2022-02-21 10:07:54
5	Eric Pinter	0.03 s	Rust	2022-05-07 19:17:56
6	Chris Seager	0.03 s	Rust	2025-03-27 01:22:56
7	Muhammad Rais Fathin Mudzakir	0.05 s	Rust	2021-05-29 19:11:06
8	Ming Kang	0.09 s	Rust	2025-06-06 06:04:07

#	User	Length	Language	Date
1	Raymond Yang	471	C	2018-07-06 08:40:12
2	Qi Ji	564	C	2018-08-10 18:14:22
3	Olle Eriksson	570	C	2016-11-27 19:33:35
4	Christian Lindeström	577	C	2016-09-05 13:37:18
5	Jack Min Ong	631	C	2020-04-13 22:52:06
6	Esther Chong	638	C	2018-01-25 06:56:26
7	Juan Nepomuseno	640	C	2021-08-22 07:45:11
8	José Alejandro Morán Duque	640	C	2021-08-22 17:30:37
9	Hakan Yurt	644	C	2023-02-01 20:39:58
10	Gustav Hedengran	697	C	2016-11-18 14:29:05

#	User	Length	Language	Date
1	Joel Marcos Villarroel Molina	1266	C#	2025-06-26 15:53:07
2	Viktor Máni Mönster	1526	C#	2018-07-28 23:49:04
3	Julio Cesar	1741	C#	2025-06-20 23:33:42
4	Anej Jereb	2108	C#	2016-12-12 14:04:58
5	Cyril Jeanguenat	2137	C#	2022-10-20 17:49:11
6	Jacob Aufdenberg	2235	C#	2019-05-15 20:59:28
7	Duelene Olson	2915	C#	2016-08-19 14:46:23
8	Andriy Zyevakov	3737	C#	2016-11-11 21:16:47
9	Nils Lenart	4995	C#	2020-03-24 10:59:29
10	Robert Warnestam	6273	C#	2021-03-27 16:02:01

#	User	Length	Language	Date
1	Frans Meulenbroeks	351	C++	2024-11-09 16:02:43
2	Bbshsh Si	398	C++	2022-06-09 16:21:01
3	koriyuki	418	C++	2023-11-15 07:38:31
4	KB Lin	429	C++	2023-09-22 04:35:49
5	Zane Yu	444	C++	2018-12-31 08:08:02
6	Jesús Pacheco Alonso	448	C++	2023-12-27 00:03:18
7	蔡童彥	453	C++	2025-03-09 07:37:40
8	blameazu	460	C++	2024-08-14 17:40:07
9	Ainun Nadhifah Syamsiyah	462	C++	2020-11-21 08:10:26
10	Chase Hinesman	472	C++	2019-04-05 22:39:09

#	User	Length	Language	Date
1	Nathan Lee	685	Go	2025-09-11 13:57:57
2	Norbert Voelker	886	Go	2021-07-22 01:06:41

#	User	Length	Language	Date
1	David Wärn	298	Haskell	2015-06-03 22:14:23
2	Isaac Arvestad	735	Haskell	2019-01-12 17:01:44
3	Steinar Simonnes	1085	Haskell	2024-11-06 16:33:39
4	Jan Hrček	1226	Haskell	2021-04-11 09:59:55
5	Hidden user	13544	Haskell	2021-06-03 10:45:55

#	User	Length	Language	Date
1	Sam Huynh	684	Java	2021-10-06 06:26:34
2	Alvin Yan	728	Java	2018-06-21 11:17:31
3	Brennan Cleland	790	Java	2023-05-26 07:05:02
4	driss allali	805	Java	2016-10-05 14:19:44
5	Robert Jay Beralde	805	Java	2023-05-17 00:43:22
6	Kelvin Peng	807	Java	2018-03-13 20:28:46
7	Anita Furtado	815	Java	2021-10-08 07:25:43
8	Robert Jay Beralde	829	Java	2023-05-14 15:07:45
9	Grace McClurg	844	Java	2022-01-29 22:40:02
10	Pedro Contipelli	884	Java	2016-10-18 03:23:40

#	User	Length	Language	Date
1	Sander Hellesø	1442	JavaScript (Node.js)	2019-04-25 04:43:33
2	Mikael Fiala-Lundström	3456	JavaScript (Node.js)	2021-06-20 11:13:40
3	Stephanie Keck	8392	JavaScript (Node.js)	2020-01-30 21:44:12

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	335	JavaScript (SpiderMonkey)	2023-04-10 08:30:55
2	Zachary DeStefano	448	JavaScript (SpiderMonkey)	2018-01-23 23:08:55
3	Zach Tschetter	547	JavaScript (SpiderMonkey)	2023-05-25 00:01:30
4	Bjørn Chr. Soltvedt	669	JavaScript (SpiderMonkey)	2016-04-27 09:23:39

#	User	Length	Language	Date
1	Hidden user	144	Julia	2025-03-16 06:56:54
2	Jason Clarke	464	Julia	2024-02-22 17:50:26
3	Timothy Gaede	3855	Julia	2024-09-03 14:10:22

#	User	Length	Language	Date
1	Jesper Bech Christensen	246	Kotlin	2023-09-24 22:18:39
2	Adam Koprowski	587	Kotlin	2021-03-20 17:57:03

#	User	Length	Language	Date
1	Ingemar Ragnemalm	669	Pascal	2019-12-06 16:30:02

#	User	Length	Language	Date
1	Thomas Feld	238	Python 2	2019-11-05 16:08:12
2	Johannes Agestam	278	Python 2	2015-10-14 15:11:10
3	Lars Åström	300	Python 2	2019-10-02 09:36:09
4	Erik Odenman	315	Python 2	2015-05-21 03:40:09
5	Andreas Björklund	319	Python 2	2020-11-21 12:44:41
6	Jesper Öqvist	340	Python 2	2018-11-01 23:13:31
7	Simon Vestin	346	Python 2	2019-01-21 08:12:34
8	Lars Tveito	366	Python 2	2015-11-15 17:32:44
9	Johan Lyts	368	Python 2	2019-04-10 13:50:38
10	Hidden user	403	Python 2	2016-03-16 15:13:39

#	User	Length	Language	Date
1	David Aldenbro	148	Python 3	2025-10-15 16:30:19
2	Charles Ancheta	153	Python 3	2023-03-24 07:50:22
3	Lee Isaac	164	Python 3	2022-12-13 20:17:16
4	Guk Yi Siong	169	Python 3	2023-05-14 10:41:52
5	Kelly Dance	180	Python 3	2022-11-02 16:31:30
6	Kylind Reagan	194	Python 3	2024-03-21 22:03:59
7	Wouter Dijkstra	198	Python 3	2022-06-23 16:13:06
8	Ahmed Chamseddine	198	Python 3	2023-09-07 15:48:40
9	Clement Oh	211	Python 3	2024-02-08 11:02:54
10	Lukas Kerren	225	Python 3	2024-05-03 16:14:59

#	User	Length	Language	Date
1	Thomas Feld	111	Ruby	2023-03-31 11:21:56
2	Hidden user	244	Ruby	2019-02-27 17:51:11
3	Casper Christensen	423	Ruby	2016-03-10 18:46:15
4	Macdara mac an tSionnaigh	424	Ruby	2019-10-02 01:40:35
5	Erik Rydbert	476	Ruby	2016-07-11 05:00:32

#	User	Length	Language	Date
1	Bas Dirks	753	Rust	2022-02-21 10:07:54
2	Artur Khuziakhmetov	774	Rust	2022-07-15 11:51:46
3	Eric Pinter	1305	Rust	2022-05-07 19:17:56
4	Chris Seager	1673	Rust	2025-03-27 01:22:56
5	Ming Kang	3044	Rust	2025-06-06 06:04:07
6	Muhammad Rais Fathin Mudzakir	4241	Rust	2021-05-29 19:11:06
7	Vincent Lagerros	15088	Rust	2024-08-25 23:51:23
8	Daniel Anker Hermansen	28246	Rust	2023-08-26 12:35:15

Solution running time distribution