Problem D
A Prize No One Can Win — Problem Statistics

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Submissions	10025
Accepted submissions	3042
Submission ratio	30.34%
Authors	2874
Full solves [?]	2407
Full solve Ratio	83.75%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.00 s	C	2018-12-23 12:14:58
2	Guangyi Zhou	0.00 s	C	2025-02-07 09:24:40
3	Ivan Petrov	0.01 s	C	2019-02-12 07:52:42
4	Dicky Novanto	0.01 s	C	2019-03-21 18:34:43
5	Eli W. Hunter	0.01 s	C	2020-01-16 20:42:12
6	Benjamin Hsu	0.01 s	C	2020-06-22 02:55:16
7	Leonardo	0.01 s	C	2020-07-03 14:52:58
8	Arup Ratan Guha	0.01 s	C	2020-07-26 22:51:00
9	Jacob Sutton	0.01 s	C	2020-12-04 18:48:15
10	maurice marciano tin	0.02 s	C	2019-02-17 07:10:23

#	User	Runtime	Language	Date
1	Kat Sayrs	0.07 s	C#	2019-05-23 02:07:18
2	Mathias Gjerland	0.07 s	C#	2023-09-08 19:06:10
3	Nantus Groenewald	0.07 s	C#	2024-02-15 15:27:50
4	Wenlei Yu	0.07 s	C#	2025-01-14 17:12:16
5	Michael Wichlinski	0.07 s	C#	2025-06-30 22:52:26
6	Jacob Aufdenberg	0.08 s	C#	2019-05-17 15:57:59
7	Diego Rico Reyes	0.08 s	C#	2023-11-27 01:37:46
8	Ruben Rystedt	0.08 s	C#	2024-11-12 21:58:03
9	Diego Dell	0.08 s	C#	2025-06-21 01:12:24
10	Mika 606	0.08 s	C#	2025-06-21 03:31:21

#	User	Runtime	Language	Date
1	Kenneth Langedal	0.00 s	C++	2020-06-17 02:19:51
2	Sigurjon Ingi	0.00 s	C++	2020-07-30 23:40:15
3	Alexander Kravberg	0.00 s	C++	2025-04-12 23:04:56
4	Robert Mellberg	0.01 s	C++	2018-12-26 23:37:23
5	Steven Wijaya	0.01 s	C++	2019-01-12 03:13:36
6	Ruben Brokkelkamp	0.01 s	C++	2019-01-23 17:20:34
7	Theo Ebenhoech	0.01 s	C++	2019-02-07 22:17:03
8	Donald Dong	0.01 s	C++	2019-02-12 06:53:14
9	Dicky Novanto	0.01 s	C++	2019-03-21 18:30:00
10	Ian DeHaan	0.01 s	C++	2019-06-10 20:48:29

#	User	Runtime	Language	Date
1	Hidden user	0.28 s	Common Lisp	2019-06-27 04:39:01

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.14 s	F#	2023-01-21 11:27:22

#	User	Runtime	Language	Date
1	Norbert Voelker	0.10 s	Go	2021-07-10 00:03:10
2	Ainun Nazieb	0.11 s	Go	2020-09-30 19:40:55
3	Krzysztof Gibuła	0.11 s	Go	2022-03-29 23:48:00
4	Andriy Zyevakov	0.22 s	Go	2019-07-01 14:13:18
5	Josenildo Silva	0.25 s	Go	2020-05-08 00:42:43
6	Ethan Clark	1.24 s	Go	2024-11-23 04:21:57
7	Eddy Wu	1.46 s	Go	2018-12-24 07:33:18

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.15 s	Haskell	2025-02-09 11:21:28
2	Hidden user	0.26 s	Haskell	2019-11-04 13:55:21
3	Rudy Matela	0.33 s	Haskell	2025-02-17 12:51:06
4	Brent Yorgey	0.39 s	Haskell	2018-12-22 20:57:55
5	Hamish Starling	0.40 s	Haskell	2022-11-10 17:45:03
6	Jan Hrček	0.41 s	Haskell	2021-04-05 09:56:20
7	Mason Barnhill	0.41 s	Haskell	2023-07-13 18:47:33
8	Adam Yaser Sweilem	0.41 s	Haskell	2025-02-15 20:58:29
9	Ted Bjurlin	0.42 s	Haskell	2024-04-20 23:55:30
10	Oishik Ganguly	0.42 s	Haskell	2024-08-31 13:32:45

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.05 s	Java	2025-02-07 07:00:11
2	Chen Shenghao	0.11 s	Java	2019-08-09 05:17:18
3	Tan Zhang-Hng Ervin	0.14 s	Java	2024-10-17 19:29:31
4	Øyvind Johannessen	0.16 s	Java	2019-01-25 14:09:33
5	Charlie Zheng	0.17 s	Java	2019-02-28 03:02:21
6	Aditya Bandekar	0.17 s	Java	2019-12-23 00:31:55
7	Aurélien Pepin	0.18 s	Java	2020-03-09 10:16:48
8	Marc Dominic San Pedro	0.18 s	Java	2024-05-21 10:43:53
9	Min Myat Zaw Moe	0.19 s	Java	2025-09-15 12:11:19
10	Emma Holmberg Ohlsson	0.20 s	Java	2024-10-23 16:01:48

#	User	Runtime	Language	Date
1	Thiago Felipe Bastos da Silva	0.12 s	JavaScript (Node.js)	2023-09-26 03:20:20
2	Peter D'Elia	0.12 s	JavaScript (Node.js)	2023-11-09 20:46:33
3	Ihor Kolisnyk	0.12 s	JavaScript (Node.js)	2025-09-02 18:42:04
4	Sander Hellesø	0.17 s	JavaScript (Node.js)	2019-04-28 10:40:12

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.06 s	JavaScript (SpiderMonkey)	2018-12-31 01:40:29
2	Christian Pilegaard Cederquist	0.06 s	JavaScript (SpiderMonkey)	2023-02-14 14:54:21

#	User	Runtime	Language	Date
1	Timothy Gaede	0.58 s	Julia	2024-07-10 13:08:37

#	User	Runtime	Language	Date
1	Jahid Hasan Imon	0.48 s	Kotlin	2020-07-09 15:45:20
2	Hidden user	0.58 s	Kotlin	2019-10-26 00:10:44
3	Jonathan Soo	0.62 s	Kotlin	2019-06-21 05:59:13
4	Adam Rankin	0.63 s	Kotlin	2023-08-25 05:33:14
5	Danny Mittal	0.65 s	Kotlin	2022-09-14 03:50:14
6	André Dyrstad	0.75 s	Kotlin	2020-08-10 12:48:58
7	Matthew Lutze	0.84 s	Kotlin	2019-09-28 07:43:31

#	User	Runtime	Language	Date
1	Herbert Ilhan Tanujaya	0.05 s	Python 2	2019-05-04 04:22:50
2	Anubhav Roy Bhattacharya	0.06 s	Python 2	2019-01-20 07:33:10
3	Auburn Ford	0.06 s	Python 2	2019-01-24 19:33:59
4	Ciara Godwin	0.06 s	Python 2	2019-02-08 16:03:19
5	Jesper Öqvist	0.06 s	Python 2	2019-02-26 12:54:59
6	Eoin Davey	0.06 s	Python 2	2019-03-06 11:40:54
7	Lars Åström	0.06 s	Python 2	2019-03-30 12:20:40
8	Bjarni Jens Kristinsson	0.06 s	Python 2	2019-05-17 12:54:17
9	Oskar Haarklou Veileborg	0.06 s	Python 2	2019-06-18 17:11:14
10	Max Holmberg	0.06 s	Python 2	2019-08-02 16:30:47

#	User	Runtime	Language	Date
1	Kirill Sladkov	0.06 s	Python 3	2019-01-09 12:21:37
2	Matt Collins	0.06 s	Python 3	2019-08-10 13:31:09
3	Kristoffer Åhgren	0.06 s	Python 3	2019-10-04 13:29:51
4	Thore Husfeldt	0.06 s	Python 3	2019-10-13 17:59:56
5	Erik Svendsmark	0.06 s	Python 3	2019-11-03 19:13:18
6	Romaric Madegnan	0.07 s	Python 3	2019-02-01 12:34:09
7	Jocelin Hounon	0.07 s	Python 3	2019-02-03 21:14:22
8	Roger Bongers	0.07 s	Python 3	2019-04-11 11:40:07
9	Brayoni Ian	0.07 s	Python 3	2019-07-21 13:37:38
10	Hugo Alayrangues	0.07 s	Python 3	2019-07-28 21:28:48

#	User	Runtime	Language	Date
1	Hidden user	0.09 s	Ruby	2019-11-27 17:54:50
2	Thomas Feld	0.12 s	Ruby	2023-03-29 13:11:18

#	User	Runtime	Language	Date
1	Felix Köhler	0.00 s	Rust	2024-06-01 22:42:04
2	Vincent Lagerros	0.00 s	Rust	2024-09-17 16:44:50
3	Rudi Svartveit	0.01 s	Rust	2019-11-17 20:44:16
4	Noah Gergel	0.01 s	Rust	2020-01-14 01:40:18
5	Noah Gergel	0.01 s	Rust	2020-01-14 22:46:38
6	Bas Dirks	0.01 s	Rust	2022-01-12 14:20:14
7	Artur Khuziakhmetov	0.01 s	Rust	2022-08-06 10:36:48
8	Daniel Anker Hermansen	0.01 s	Rust	2023-09-20 19:05:45
9	James Felder	0.01 s	Rust	2024-02-22 23:19:23
10	chuanhao01	0.01 s	Rust	2024-04-06 09:37:04

#	User	Length	Language	Date
1	a_b__c	292	C	2021-02-08 12:43:27
2	Mirel Cosulschi	406	C	2025-05-15 18:37:12
3	Bryan Heryanto	447	C	2019-08-29 16:42:31
4	Charles Boole	468	C	2019-10-20 04:42:44
5	Brian Jezreel So	468	C	2019-10-20 04:43:19
6	Raymond Yang	514	C	2019-02-17 21:03:10
7	kalaiselvan.R	522	C	2019-09-26 08:32:08
8	MUTHURAJAN G	522	C	2025-04-09 16:15:55
9	Yao Wang	527	C	2019-11-24 21:05:35
10	Kenneth Loquinte	544	C	2019-10-20 15:47:47

#	User	Length	Language	Date
1	Mattias Hedlund	609	C#	2022-07-02 16:48:23
2	Victor Byron Vásquez Reynolds	625	C#	2019-12-27 00:51:45
3	Ruben Rystedt	644	C#	2024-11-12 21:58:03
4	Diego Rico Reyes	684	C#	2023-11-27 01:37:46
5	Garway Mei	706	C#	2019-10-30 17:48:03
6	Jordan McIntyre	715	C#	2020-06-10 18:57:43
7	Mathias Gjerland	733	C#	2023-09-08 19:06:10
8	T Steenhuis	737	C#	2025-08-26 12:17:27
9	Jack Gray	741	C#	2025-01-06 16:16:26
10	Wenlei Yu	758	C#	2025-01-14 17:12:16

#	User	Length	Language	Date
1	Ernest Ng Zi Xuan	185	C++	2022-12-06 13:26:22
2	Ragnar Groot Koerkamp	220	C++	2018-12-27 13:07:05
3	Noah Weninger	230	C++	2019-01-05 22:02:21
4	Arulmozhivarman C	238	C++	2019-09-26 09:06:00
5	MUGESHKUMAR M	238	C++	2019-09-26 09:06:38
6	RAHUL RAJ A S	238	C++	2019-09-26 09:10:12
7	Hidden user	252	C++	2019-07-03 07:11:28
8	My Quach	254	C++	2019-08-28 00:51:56
9	Magizhini R	254	C++	2019-09-26 07:57:10
10	Hidden user	254	C++	2019-09-26 07:58:46

#	User	Length	Language	Date
1	Hidden user	384	Common Lisp	2019-06-27 04:39:01

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	868	F#	2023-01-21 11:27:22

#	User	Length	Language	Date
1	Ethan Clark	441	Go	2024-11-23 04:21:57
2	Josenildo Silva	500	Go	2020-05-08 00:23:17
3	Ainun Nazieb	520	Go	2020-09-30 19:40:55
4	Andriy Zyevakov	550	Go	2019-07-01 14:13:18
5	Norbert Voelker	671	Go	2021-07-10 00:03:10
6	Eddy Wu	702	Go	2018-12-24 07:33:18
7	Krzysztof Gibuła	729	Go	2022-03-29 23:48:00

#	User	Length	Language	Date
1	Hamish Starling	323	Haskell	2022-11-10 17:45:03
2	Mason Barnhill	333	Haskell	2023-07-13 18:47:33
3	Ted Bjurlin	347	Haskell	2024-04-20 23:55:30
4	Greg Gorlen	357	Haskell	2023-08-24 08:47:17
5	Ben Anhalt	357	Haskell	2023-10-11 01:52:50
6	Jan Hrček	497	Haskell	2021-04-05 09:56:20
7	Steinar Simonnes	567	Haskell	2025-02-09 11:23:10
8	Rudy Matela	569	Haskell	2025-02-17 12:51:06
9	Eric Mayhew	778	Haskell	2023-08-17 01:24:10
10	Fabian Paglianno	789	Haskell	2023-10-28 21:23:19

#	User	Length	Language	Date
1	Nicholas Rupert Custodio	429	Java	2019-10-22 12:33:00
2	Bharanidhar Reddy	440	Java	2020-04-18 20:29:03
3	Himanshu	452	Java	2020-04-21 23:51:09
4	Ainsley Go	454	Java	2019-10-21 15:48:39
5	Ashwin Subu	455	Java	2020-04-18 21:57:32
6	Ali Pervaiz	462	Java	2019-04-04 22:08:13
7	Arup Ratan Guha	462	Java	2020-05-06 22:00:37
8	Reynaldo DelimaJr	475	Java	2019-10-19 11:48:47
9	Alicia	476	Java	2025-01-27 12:49:42
10	Phoebe Clare Ong	477	Java	2020-12-09 02:21:24

#	User	Length	Language	Date
1	Thiago Felipe Bastos da Silva	508	JavaScript (Node.js)	2023-09-26 03:20:20
2	Peter D'Elia	556	JavaScript (Node.js)	2023-11-09 20:46:33
3	Ihor Kolisnyk	643	JavaScript (Node.js)	2025-09-02 18:42:04
4	Sander Hellesø	820	JavaScript (Node.js)	2019-04-28 10:40:12

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	189	JavaScript (SpiderMonkey)	2023-02-14 14:54:21
2	Bjørn Chr. Soltvedt	277	JavaScript (SpiderMonkey)	2018-12-31 01:40:29

#	User	Length	Language	Date
1	Timothy Gaede	415	Julia	2024-07-10 13:08:37

#	User	Length	Language	Date
1	Danny Mittal	287	Kotlin	2022-09-14 03:50:14
2	Matthew Lutze	351	Kotlin	2019-09-28 07:43:31
3	Adam Rankin	366	Kotlin	2023-08-25 05:33:14
4	André Dyrstad	401	Kotlin	2020-08-10 12:46:19
5	Jonathan Soo	427	Kotlin	2019-06-21 05:59:13
6	Hidden user	1123	Kotlin	2019-10-26 00:10:44
7	Jahid Hasan Imon	1681	Kotlin	2020-07-09 15:45:20

#	User	Length	Language	Date
1	Jesper Öqvist	150	Python 2	2019-02-26 12:54:59
2	Andreas Björklund	153	Python 2	2019-09-04 07:49:16
3	Thomas Feld	166	Python 2	2019-10-30 16:25:39
4	Lars Åström	174	Python 2	2019-03-30 12:20:40
5	Eoin Davey	178	Python 2	2019-03-06 11:40:54
6	Johan Lyts	186	Python 2	2019-09-13 14:55:11
7	Herbert Ilhan Tanujaya	191	Python 2	2019-05-04 04:22:50
8	Olav Røthe Bakken	192	Python 2	2021-11-09 14:54:24
9	Jonatan Nilsson	212	Python 2	2019-09-01 13:05:09
10	Björn Magnusson	212	Python 2	2019-09-02 10:14:11

#	User	Length	Language	Date
1	Clement Oh	92	Python 3	2023-06-25 10:01:01
2	Ahmed Chamseddine	110	Python 3	2024-11-03 20:47:48
3	Rachel Krohn	112	Python 3	2025-04-23 18:24:34
4	Kévin Dubrulle	123	Python 3	2024-11-25 14:34:50
5	Lee Isaac	126	Python 3	2023-05-12 11:26:42
6	Noah Hessen Bjerke	131	Python 3	2024-03-16 22:32:31
7	David Aldenbro	132	Python 3	2025-10-21 22:26:04
8	Jonathan Dastrup	135	Python 3	2024-05-25 19:35:15
9	Rafael Kristoforus Yanto	135	Python 3	2025-02-25 16:00:16
10	Axel Lundberg	138	Python 3	2024-09-02 22:46:40

#	User	Length	Language	Date
1	Thomas Feld	71	Ruby	2023-03-29 13:11:43
2	Hidden user	172	Ruby	2019-11-27 17:54:50

#	User	Length	Language	Date
1	Bas Dirks	590	Rust	2025-02-20 08:41:12
2	Noah Gergel	616	Rust	2020-01-14 01:40:18
3	Joe Little	677	Rust	2024-04-12 10:56:58
4	Artur Khuziakhmetov	680	Rust	2022-08-06 10:36:48
5	chuanhao01	709	Rust	2024-04-06 09:37:04
6	Felix Köhler	747	Rust	2024-06-01 21:29:22
7	Rudi Svartveit	839	Rust	2019-11-17 20:44:16
8	cera	901	Rust	2025-05-25 03:10:46
9	Hidden user	919	Rust	2024-08-04 19:01:59
10	Noah Gergel	1321	Rust	2020-01-14 22:46:38

Solution running time distribution