Problem I
Tomography — Problem Statistics

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Submissions	3761
Accepted submissions	979
Submission ratio	26.03%
Authors	737
Full solves [?]	625
Full solve Ratio	84.80%

#	User	Runtime	Language	Date
1	Oskar Arvidsson	0.02 s	C	2011-09-28 20:21:48
2	Bretislav Rychta	0.02 s	C	2017-05-13 19:41:27
3	Tobias Nyström	0.02 s	C	2018-09-09 12:43:21
4	Hidden user	0.02 s	C	2018-09-28 11:07:21
5	Johan Wennermark	0.02 s	C	2018-10-01 16:40:43
6	Johan Samuelsson	0.02 s	C	2018-10-02 13:20:19
7	Michael Pfeifer	0.02 s	C	2018-10-07 08:26:53
8	Ali Ferzali	0.02 s	C	2018-10-08 09:57:01
9	Hidden user	0.02 s	C	2018-10-17 20:12:36
10	Hidden user	0.02 s	C	2020-11-17 10:21:13

#	User	Runtime	Language	Date
1	Jack Jackson	0.21 s	C#	2018-06-22 12:25:01
2	Alireza Nasrollahzadeh	0.21 s	C#	2018-06-22 12:38:37

#	User	Runtime	Language	Date
1	Fulano de Tal	0.01 s	Haskell	2021-12-25 18:36:16
2	Fumiaki Takagi	0.01 s	Haskell	2023-02-13 08:51:20
3	Hidden user	0.02 s	Haskell	2022-08-24 15:22:42

#	User	Runtime	Language	Date
1	Keven Wang	0.07 s	Java	2013-12-05 22:29:08
2	Erik Odenman	0.08 s	Java	2011-09-28 19:14:05
3	Martijn Muijsers	0.08 s	Java	2017-05-07 14:16:28
4	Love Engman	0.09 s	Java	2014-07-24 01:15:58
5	Love Engman	0.09 s	Java	2014-07-24 01:18:52
6	Hà Minh Ngọc	0.09 s	Java	2016-05-24 19:49:08
7	Mark Sturtevant	0.09 s	Java	2024-04-25 04:23:41
8	Erik Baalhuis	0.10 s	Java	2016-07-26 06:24:49
9	Andrew Polizzotto	0.10 s	Java	2020-10-06 07:28:04
10	Maya Robbestad	0.11 s	Java	2024-04-18 11:47:30

#	User	Runtime	Language	Date
1	Hidden user	0.08 s	JavaScript (Node.js)	2018-09-16 20:56:35
2	Stephanie Keck	0.53 s	JavaScript (Node.js)	2020-02-23 03:30:40

#	User	Runtime	Language	Date
1	aladin77	0.04 s	JavaScript (SpiderMonkey)	2015-12-23 16:08:24
2	Jan Järfalk	0.04 s	JavaScript (SpiderMonkey)	2016-05-13 13:31:00
3	Gary Dinh	0.04 s	JavaScript (SpiderMonkey)	2017-02-17 17:36:19
4	Viking Jonsson	0.04 s	JavaScript (SpiderMonkey)	2017-04-08 09:56:26
5	Graham Fairweather	0.04 s	JavaScript (SpiderMonkey)	2017-10-06 12:32:46
6	Amanual Degu	0.04 s	JavaScript (SpiderMonkey)	2022-09-08 12:13:19
7	andreas	0.05 s	JavaScript (SpiderMonkey)	2018-09-15 23:56:44

#	User	Runtime	Language	Date
1	Timothy Gaede	0.65 s	Julia	2025-10-10 07:08:31

#	User	Runtime	Language	Date
1	Jacob Huebner	0.16 s	Kotlin	2021-10-25 06:11:13
2	Hidden user	0.23 s	Kotlin	2020-02-07 16:08:15

#	User	Runtime	Language	Date
1	Shehab Ahmed Hatem	0.29 s	Lua	2023-11-29 19:59:00

#	User	Runtime	Language	Date
1	Angel Mier	0.20 s	Objective-C	2014-11-19 13:19:20

#	User	Runtime	Language	Date
1	Hermon Mulat	0.04 s	Python 2	2017-10-28 05:42:18
2	Tal Melamed	0.05 s	Python 2	2017-10-27 03:55:40
3	Yanmarshus Bachtiar	0.08 s	Python 2	2021-06-03 06:06:01
4	Christofer Ohlsson	0.11 s	Python 2	2016-10-12 20:56:57
5	Simon Vestin	0.19 s	Python 2	2019-01-15 13:33:26
6	Andreas Björklund	0.85 s	Python 2	2019-03-10 10:08:13

#	User	Runtime	Language	Date
1	Nicholas Russell Saerang	0.04 s	Python 3	2026-02-21 09:27:48
2	Donovan Bly	0.04 s	Python 3	2026-02-24 22:31:41
3	Iman Khodadi	0.05 s	Python 3	2022-09-05 07:50:56
4	Benjamin Ye	0.05 s	Python 3	2024-02-06 23:04:15
5	Jai Uparkar	0.05 s	Python 3	2024-02-08 18:59:02
6	Michael Wu	0.05 s	Python 3	2024-02-13 18:11:53
7	Cappillen Lee	0.05 s	Python 3	2024-02-16 08:20:24
8	Sarah Bassett	0.05 s	Python 3	2024-09-26 04:13:37
9	Jed Yang	0.05 s	Python 3	2024-12-24 20:29:17
10	Jacob Molin	0.05 s	Python 3	2025-03-04 11:41:25

#	User	Runtime	Language	Date
1	Thomas Feld	0.10 s	Ruby	2026-01-15 10:27:39

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-03-12 12:41:15
2	Christoffer Andersson	0.00 s	Rust	2024-03-14 11:06:47
3	Rasmus Andersson	0.00 s	Rust	2024-03-17 13:10:02
4	Ole Vik Lysne	0.00 s	Rust	2024-04-12 23:20:49
5	gard heine kalland	0.01 s	Rust	2024-05-02 16:51:50

#	User	Length	Language	Date
1	Oscar Cusin	734	C	2024-03-02 13:44:39
2	Julian Duniec	742	C	2023-09-06 09:18:52
3	Michael Pfeifer	760	C	2018-10-07 08:26:53
4	Ali Ferzali	802	C	2018-10-08 09:57:01
5	Hidden user	833	C	2018-10-03 14:03:21
6	Hidden user	848	C	2020-11-17 10:21:13
7	Hidden user	885	C	2018-09-28 11:07:21
8	Hidden user	889	C	2018-10-20 00:08:19
9	Hidden user	895	C	2018-10-09 09:13:22
10	Oskar Arvidsson	916	C	2011-09-28 20:21:48

#	User	Length	Language	Date
1	Alireza Nasrollahzadeh	1089	C#	2018-06-22 12:38:37
2	Jack Jackson	1182	C#	2018-06-22 12:25:01

#	User	Length	Language	Date
1	Li Yao'an	361	C++	2017-02-27 15:07:23
2	Jackson Abascal	450	C++	2017-10-04 18:13:58
3	Timothy Wan Kai Yang	457	C++	2023-06-16 17:36:33
4	Hưng Dương Quốc	527	C++	2019-05-31 22:41:40
5	Frederick Pek	561	C++	2021-05-15 10:33:26
6	YanHao Ling	574	C++	2018-03-10 13:36:39
7	Zheng-Dao Yang	577	C++	2019-01-27 13:17:04
8	Magnus Eide-Fredriksen	600	C++	2022-10-30 20:00:57
9	Guan Yang Ze	601	C++	2021-04-29 08:09:19
10	Nghiep Chinh Luu	645	C++	2020-02-15 19:48:42

#	User	Length	Language	Date
1	Hidden user	1113	Haskell	2022-08-24 15:22:42
2	Fulano de Tal	1381	Haskell	2021-12-25 18:36:16
3	Fumiaki Takagi	3228	Haskell	2023-02-13 08:51:20

#	User	Length	Language	Date
1	Doug Goodman	920	Java	2019-12-04 14:21:40
2	Sohom Dutta	999	Java	2024-02-07 23:24:03
3	John Huddleston	1031	Java	2024-05-01 00:07:41
4	John Huddleston	1031	Java	2024-05-01 00:08:11
5	Andrew Polizzotto	1047	Java	2020-10-06 07:28:04
6	Payton McBurney	1100	Java	2020-04-05 09:17:45
7	Kedai Zuo	1125	Java	2024-02-17 02:59:58
8	Joseph Li	1152	Java	2024-02-16 07:49:39
9	Matt Peter	1166	Java	2019-03-18 16:24:21
10	Anders Dalby	1234	Java	2023-11-01 22:12:50

#	User	Length	Language	Date
1	Hidden user	1247	JavaScript (Node.js)	2018-09-16 20:56:35
2	Stephanie Keck	6486	JavaScript (Node.js)	2020-02-23 03:30:40

#	User	Length	Language	Date
1	Jan Järfalk	764	JavaScript (SpiderMonkey)	2016-05-15 21:44:33
2	Viking Jonsson	1076	JavaScript (SpiderMonkey)	2017-04-08 22:00:09
3	Gary Dinh	1136	JavaScript (SpiderMonkey)	2017-02-17 17:36:19
4	andreas	1136	JavaScript (SpiderMonkey)	2018-09-15 23:56:44
5	Amanual Degu	1136	JavaScript (SpiderMonkey)	2022-09-08 12:13:19
6	aladin77	1212	JavaScript (SpiderMonkey)	2015-12-23 16:08:24
7	Graham Fairweather	1309	JavaScript (SpiderMonkey)	2017-10-06 12:32:46

#	User	Length	Language	Date
1	Timothy Gaede	1944	Julia	2025-10-10 07:08:31

#	User	Length	Language	Date
1	Hidden user	864	Kotlin	2020-02-07 16:08:15
2	Jacob Huebner	1157	Kotlin	2021-10-25 06:11:13

#	User	Length	Language	Date
1	Shehab Ahmed Hatem	803	Lua	2023-11-29 19:59:00

#	User	Length	Language	Date
1	Angel Mier	3544	Objective-C	2014-11-19 13:19:20

#	User	Length	Language	Date
1	Tal Melamed	515	Python 2	2017-10-27 03:55:40
2	Simon Vestin	582	Python 2	2019-01-15 13:33:26
3	Hermon Mulat	771	Python 2	2017-10-28 05:42:18
4	Yanmarshus Bachtiar	785	Python 2	2021-06-03 06:06:01
5	Christofer Ohlsson	828	Python 2	2016-10-12 21:05:26
6	Andreas Björklund	1751	Python 2	2019-03-10 10:08:13

#	User	Length	Language	Date
1	Michael Wu	117	Python 3	2024-02-13 19:16:57
2	Benjamin Ye	118	Python 3	2024-02-06 23:11:40
3	Anshuman Dash	185	Python 3	2024-02-08 06:18:31
4	Arul Saxena	220	Python 3	2024-02-08 01:19:53
5	Magnus Lillerønning Aune	226	Python 3	2025-05-07 14:53:59
6	Nicholas Russell Saerang	242	Python 3	2026-02-21 09:27:48
7	Lee Isaac	273	Python 3	2023-02-01 10:02:27
8	Jacob Molin	281	Python 3	2025-03-04 11:48:39
9	Sarah Bassett	286	Python 3	2024-09-26 04:13:37
10	Hidden user	298	Python 3	2021-05-07 11:21:26

#	User	Length	Language	Date
1	Thomas Feld	95	Ruby	2026-01-15 10:31:06

#	User	Length	Language	Date
1	Rasmus Andersson	748	Rust	2024-03-17 13:32:31
2	Vincent Lagerros	790	Rust	2024-03-12 12:23:50
3	Ole Vik Lysne	797	Rust	2024-04-12 23:23:38
4	gard heine kalland	1444	Rust	2024-05-02 16:51:50
5	Christoffer Andersson	8066	Rust	2024-03-14 11:06:47

Solution running time distribution