Problem H
Tracing (Laser) Pointers — Problem Statistics

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Submissions	410
Accepted submissions	144
Submission ratio	35.12%
Authors	134
Full solves [?]	119
Full solve Ratio	88.81%

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.05 s	C++	2025-05-23 18:17:47
2	Ernest Ng Zi Xuan	0.14 s	C++	2025-05-24 09:06:57
3	Nick Wu	0.15 s	C++	2025-03-15 18:14:40
4	Benjamin Jeter	0.15 s	C++	2025-03-15 18:25:40
5	Dylan Smith	0.15 s	C++	2025-03-15 18:26:35
6	Andrew Li	0.15 s	C++	2025-03-15 18:47:12
7	Jubayer Nirjhor	0.15 s	C++	2025-03-15 18:48:53
8	Michael Shio	0.15 s	C++	2025-03-15 18:58:22
9	Arvid Jonasson	0.15 s	C++	2025-08-18 20:09:28
10	Richard Wang	0.15 s	C++	2025-09-20 10:41:01

#	User	Runtime	Language	Date
1	Brent Yorgey	1.06 s	Haskell	2025-06-24 19:01:45

#	User	Runtime	Language	Date
1	Bjørn Dons	0.52 s	Java	2025-05-26 20:38:02
2	Markus Bao	0.87 s	Java	2025-11-21 15:09:47
3	Mattias Gustafsson	1.15 s	Java	2025-09-30 20:04:43
4	Emil Kennet Nørgaard	1.16 s	Java	2025-11-10 12:23:12
5	Hidden user	1.27 s	Java	2025-03-15 18:55:18
6	Cambrien Malenko	1.44 s	Java	2025-03-20 22:15:30
7	Fredrik Persson	1.58 s	Java	2025-09-30 20:17:57
8	Simon Eriksson	1.59 s	Java	2025-09-30 22:05:16
9	Oskar Stefanski	1.61 s	Java	2025-11-07 18:54:07
10	Kristóf Németh	1.70 s	Java	2025-11-11 14:09:54

#	User	Runtime	Language	Date
1	Daniel Iversen Sato	0.76 s	JavaScript (Node.js)	2025-11-07 17:04:10

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.29 s	JavaScript (SpiderMonkey)	2025-05-27 07:26:50

#	User	Runtime	Language	Date
1	Timothy Gaede	1.77 s	Julia	2025-05-23 06:54:32

#	User	Runtime	Language	Date
1	Ioannis Karras	1.62 s	Kotlin	2025-11-07 18:41:06

#	User	Runtime	Language	Date
1	Fremonte Ji	0.28 s	Python 3	2025-03-15 18:42:03
2	Damon Grant	0.28 s	Python 3	2025-03-15 19:20:39
3	Joao Pedro Amaral Pereira	0.28 s	Python 3	2025-03-15 19:51:45
4	Eric Leow Yu Quan	0.28 s	Python 3	2025-05-29 09:07:15
5	Luke Concini	0.29 s	Python 3	2025-03-15 20:06:09
6	Marcus Kim	0.29 s	Python 3	2025-03-15 20:30:02
7	Iman Khodadi	0.29 s	Python 3	2025-05-26 16:05:54
8	William Chorkawy	0.30 s	Python 3	2025-03-15 19:00:24
9	Marcus Der	0.30 s	Python 3	2025-03-15 19:08:38
10	Aakash Sorathiya	0.30 s	Python 3	2025-03-15 19:12:00

#	User	Runtime	Language	Date
1	Thomas Feld	0.75 s	Ruby	2025-07-10 10:43:13
2	Zilin Jiang	1.30 s	Ruby	2025-03-15 18:53:49

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.02 s	Rust	2025-05-23 14:26:05
2	Frank Endriss	0.16 s	Rust	2025-06-01 12:57:08

#	User	Length	Language	Date
1	Ernest Ng Zi Xuan	442	C++	2025-05-24 09:06:06
2	Kevin Xu	482	C++	2025-03-15 18:25:21
3	William Tsin	532	C++	2025-03-15 18:19:59
4	Howard Cheng	547	C++	2025-03-15 18:43:20
5	Darcy Best	589	C++	2025-03-15 19:08:15
6	Zac Friggstad	641	C++	2025-05-24 19:32:16
7	Xizhe Li	644	C++	2025-03-15 19:02:57
8	Jonas Haukenes	680	C++	2025-11-24 23:11:10
9	Jubayer Nirjhor	694	C++	2025-03-15 18:48:53
10	Xander Fair	716	C++	2025-03-15 19:05:38

#	User	Length	Language	Date
1	Brent Yorgey	7841	Haskell	2025-06-24 19:01:45

#	User	Length	Language	Date
1	Markus Bao	845	Java	2025-11-21 15:05:20
2	Emil Kennet Nørgaard	1004	Java	2025-11-07 17:28:56
3	Kristóf Németh	1112	Java	2025-11-11 14:09:54
4	Fredrik Persson	1119	Java	2025-09-30 20:17:57
5	Cambrien Malenko	1187	Java	2025-03-20 22:15:30
6	Oskar Stefanski	1291	Java	2025-11-07 18:54:07
7	Mattias Gustafsson	1329	Java	2025-09-30 20:04:43
8	Hidden user	1370	Java	2025-03-15 18:55:18
9	Simon Eriksson	1798	Java	2025-09-30 22:05:16
10	Bjørn Dons	5400	Java	2025-05-26 20:38:02

#	User	Length	Language	Date
1	Daniel Iversen Sato	1057	JavaScript (Node.js)	2025-11-07 17:04:10

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	193	JavaScript (SpiderMonkey)	2025-05-27 07:36:59

#	User	Length	Language	Date
1	Timothy Gaede	1025	Julia	2025-05-23 06:54:32

#	User	Length	Language	Date
1	Ioannis Karras	703	Kotlin	2025-11-07 18:41:06

#	User	Length	Language	Date
1	Nicholas Russell Saerang	120	Python 3	2025-06-10 19:25:12
2	Ahmed Chamseddine	135	Python 3	2025-05-23 18:05:36
3	Yong Mao	214	Python 3	2025-05-24 02:37:38
4	Jonathan Cederlund	225	Python 3	2025-09-30 14:44:18
5	Lex Janssens	239	Python 3	2025-11-27 23:37:26
6	Doug Goodman	263	Python 3	2025-06-26 23:40:00
7	Andreas Björklund	270	Python 3	2025-06-19 06:39:09
8	Isaac Lee	274	Python 3	2025-03-15 18:40:37
9	Alexander Bilde Pedersen	275	Python 3	2025-11-07 17:02:08
10	Kelly Dance	279	Python 3	2025-03-15 18:23:20

#	User	Length	Language	Date
1	Thomas Feld	81	Ruby	2025-07-10 10:43:13
2	Zilin Jiang	410	Ruby	2025-03-15 18:53:49

#	User	Length	Language	Date
1	Frank Endriss	2427	Rust	2025-06-01 12:57:08
2	Vincent Lagerros	50920	Rust	2025-05-23 14:26:05

Solution running time distribution