Problem A
Safe Squares — Problem Statistics

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Submissions	374
Accepted submissions	243
Submission ratio	64.97%
Authors	236
Full solves [?]	229
Full solve Ratio	97.03%

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.00 s	C	2025-08-16 12:13:30
2	Eduardo Vicente Petry	0.00 s	C	2025-08-19 00:58:55
3	Allan Nouri	0.00 s	C	2025-08-22 15:48:33
4	Jeviczki Jane	0.00 s	C	2025-11-13 21:23:20

#	User	Runtime	Language	Date
1	Christopher Rech	0.02 s	C#	2020-05-02 19:07:25
2	Deci Bel	0.04 s	C#	2025-10-26 17:36:36
3	Jon Skranes	0.04 s	C#	2025-11-09 22:36:56
4	Dennis Stegnell	0.05 s	C#	2025-09-02 15:24:55

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.00 s	Haskell	2025-08-23 18:51:24
2	Brent Yorgey	0.00 s	Haskell	2025-08-31 20:52:05
3	Russell Emerine	0.01 s	Haskell	2020-05-03 21:02:57

#	User	Runtime	Language	Date
1	Markus Bao	0.04 s	Java	2025-09-05 06:22:34
2	Fiona Barry	0.06 s	Java	2020-05-02 19:06:06
3	Daniel West	0.06 s	Java	2020-05-02 19:06:47
4	Andy Phan	0.06 s	Java	2020-05-02 19:09:01
5	Darrin Wiley	0.06 s	Java	2020-05-02 19:09:29
6	Pranay Agrawal	0.06 s	Java	2020-05-02 19:12:57
7	Ethan Tan	0.06 s	Java	2020-05-02 19:20:07
8	Finn Lidbetter	0.06 s	Java	2020-05-02 19:28:15
9	Hidden user	0.06 s	Java	2020-05-03 01:21:54
10	Hunter Mullen	0.08 s	Java	2025-08-19 23:11:28

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2025-08-15 07:23:18
2	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2025-08-15 08:12:14
3	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2025-09-03 14:34:34

#	User	Runtime	Language	Date
1	Timothy Gaede	0.39 s	Julia	2025-08-15 06:11:02

#	User	Runtime	Language	Date
1	Nicholas Johnson	0.18 s	Kotlin	2020-05-02 19:09:55

#	User	Runtime	Language	Date
1	KALAJAYANTHI M	0.07 s	Python 2	2025-10-02 05:04:42

#	User	Runtime	Language	Date
1	Jey Veerasamy	0.04 s	Python 3	2025-08-15 06:52:21
2	Ahmed Chamseddine	0.04 s	Python 3	2025-08-15 12:37:31
3	Jason Clarke	0.04 s	Python 3	2025-08-15 13:40:15
4	Atli Fannar Franklín	0.04 s	Python 3	2025-08-15 16:19:37
5	ro011110ot	0.04 s	Python 3	2025-08-15 17:19:22
6	Yong Mao	0.04 s	Python 3	2025-08-16 03:02:04
7	Victor Song	0.04 s	Python 3	2025-08-16 07:51:43
8	Zeheng Li	0.04 s	Python 3	2025-08-16 08:26:56
9	Simen Sørensen	0.04 s	Python 3	2025-08-16 10:13:37
10	Hidden user	0.04 s	Python 3	2025-08-16 15:55:26

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2025-08-29 12:18:56
2	Matzuka	0.07 s	Ruby	2025-10-25 09:16:53
3	Russell Ng	0.07 s	Ruby	2025-11-15 14:50:23

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2025-08-15 14:52:01
2	Emil Dichmann	0.00 s	Rust	2025-09-02 21:38:47
3	Pankajkumar Patro	0.00 s	Rust	2025-09-16 16:39:03
4	Frank Endriss	0.00 s	Rust	2025-10-02 17:20:01
5	Hidden user	0.00 s	Rust	2025-11-05 20:24:20
6	Mikkel C. B. Christensen	0.00 s	Rust	2025-11-17 12:28:23

#	User	Length	Language	Date
1	Sven Rönnbäck	342	C	2025-08-16 12:13:30
2	Eduardo Vicente Petry	449	C	2025-08-19 00:58:55
3	Allan Nouri	715	C	2025-08-22 15:48:33
4	Jeviczki Jane	768	C	2025-11-13 21:23:20

#	User	Length	Language	Date
1	Deci Bel	782	C#	2025-10-26 17:36:36
2	Dennis Stegnell	1413	C#	2025-09-02 15:24:55
3	Jon Skranes	1679	C#	2025-11-09 22:36:56
4	Christopher Rech	2151	C#	2020-05-02 19:07:25

#	User	Length	Language	Date
1	Xingyu Zhou	327	C++	2020-05-02 19:07:58
2	Teikn Smith	340	C++	2025-09-04 21:33:43
3	Andrew He	408	C++	2020-05-02 20:44:00
4	Henry Xia	414	C++	2020-05-02 19:11:42
5	Jiahui Lu	424	C++	2020-05-02 19:18:18
6	Tate Song	427	C++	2020-05-02 21:26:06
7	Armen Andreasyan	439	C++	2025-09-30 19:41:10
8	John Edwards	460	C++	2020-05-02 19:04:09
9	Tanner Hoke	462	C++	2020-05-02 19:06:08
10	Goodkhau	469	C++	2025-10-23 15:57:23

#	User	Length	Language	Date
1	Russell Emerine	140	Haskell	2020-05-03 21:02:57
2	Steinar Simonnes	278	Haskell	2025-08-23 18:51:24
3	Brent Yorgey	659	Haskell	2025-08-31 20:52:05

#	User	Length	Language	Date
1	David Harmeyer	557	Java	2020-05-02 19:08:28
2	Thomas Anung Basuki	578	Java	2025-09-13 06:59:41
3	Arup Ratan Guha	594	Java	2020-05-02 19:13:33
4	Markus Bao	595	Java	2025-09-05 06:22:34
5	Vivek	665	Java	2020-05-02 19:20:19
6	Elizabeth Trader	684	Java	2020-05-02 19:14:07
7	Sharon Barak	700	Java	2020-05-02 19:03:18
8	Ethan Tan	710	Java	2020-05-02 19:20:07
9	TobiasZ	743	Java	2025-12-05 18:57:22
10	Hunter Mullen	880	Java	2025-08-19 23:11:28

#	User	Length	Language	Date
1	Jimmy Gustafsson	159	JavaScript (SpiderMonkey)	2025-09-03 14:34:34
2	Bjørn Chr. Soltvedt	163	JavaScript (SpiderMonkey)	2025-08-15 08:15:48
3	Christian Pilegaard Cederquist	449	JavaScript (SpiderMonkey)	2025-08-15 07:23:18

#	User	Length	Language	Date
1	Timothy Gaede	295	Julia	2025-08-15 06:11:02

#	User	Length	Language	Date
1	Nicholas Johnson	574	Kotlin	2020-05-02 19:09:55

#	User	Length	Language	Date
1	KALAJAYANTHI M	445	Python 2	2025-10-02 05:04:42

#	User	Length	Language	Date
1	Thomas Feld	80	Python 3	2025-08-29 12:21:13
2	David Worley	109	Python 3	2025-10-01 19:50:48
3	Ahmed Chamseddine	113	Python 3	2025-08-15 12:37:31
4	David Aldenbro	119	Python 3	2025-08-18 13:34:56
5	Nicholas Russell Saerang	135	Python 3	2025-08-27 06:58:06
6	Simon Baeckelant	136	Python 3	2025-10-28 22:22:15
7	Hidden user	146	Python 3	2025-08-16 15:55:26
8	Yong Mao	164	Python 3	2025-08-16 03:02:04
9	Tobias Glimmerfors	168	Python 3	2025-08-29 11:17:42
10	Shashank Bhatt	172	Python 3	2025-08-18 21:12:42

#	User	Length	Language	Date
1	Thomas Feld	65	Ruby	2025-08-29 12:23:35
2	Russell Ng	70	Ruby	2025-11-15 14:50:23
3	Matzuka	137	Ruby	2025-10-25 09:41:26

#	User	Length	Language	Date
1	Pankajkumar Patro	471	Rust	2025-09-16 16:39:03
2	Emil Dichmann	496	Rust	2025-09-02 21:38:47
3	Vincent Lagerros	634	Rust	2025-08-15 14:52:01
4	Mikkel C. B. Christensen	962	Rust	2025-11-17 12:30:48
5	Frank Endriss	2481	Rust	2025-10-02 17:20:01
6	Hidden user	11435	Rust	2025-11-05 20:24:20

Solution running time distribution