Problem I
Erase Securely — Problem Statistics

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Submissions	2001
Accepted submissions	742
Submission ratio	37.08%
Authors	655
Full solves [?]	634
Full solve Ratio	96.79%

#	User	Runtime	Language	Date
1	Fateeha Hasnain	0.00 s	C	2022-01-10 00:42:33
2	Nazim Djeradi	0.00 s	C	2022-09-11 00:00:56
3	selyann berrada	0.00 s	C	2024-09-05 03:21:06
4	Christopher Ghosn	0.00 s	C	2025-09-07 05:11:49

#	User	Runtime	Language	Date
1	Helen Lin	0.03 s	C#	2021-09-09 21:42:10

#	User	Runtime	Language	Date
1	Dan Greco	0.00 s	Haskell	2025-09-05 17:53:43
2	Allan Wei	0.01 s	Haskell	2021-10-09 23:02:02

#	User	Runtime	Language	Date
1	Freddie Liu	0.04 s	Java	2024-09-11 05:15:11
2	Rachel Craite	0.04 s	Java	2025-09-05 02:17:38
3	Bogdan Timercan	0.04 s	Java	2025-09-06 05:30:33
4	Matthew Goodman	0.06 s	Java	2021-09-08 05:49:12
5	Svyatoslav Sklokin	0.06 s	Java	2021-09-10 02:45:57
6	Massimo Vicenzo	0.06 s	Java	2021-10-07 00:41:24
7	Hidden user	0.06 s	Java	2022-09-28 20:17:49
8	Gabe Woloz	0.09 s	Java	2024-09-05 01:40:34
9	hilal elghoulti	0.09 s	Java	2024-09-05 02:06:25
10	Daniel Aarao Reis Arturi	0.09 s	Java	2024-09-05 05:33:16

#	User	Runtime	Language	Date
1	Brandon Sovran	0.03 s	Python 2	2022-01-08 05:19:06
2	Sarah Abou-Zahr	0.07 s	Python 2	2025-09-06 14:41:09
3	Arshia Rashedzadeh	0.07 s	Python 2	2025-09-06 18:49:33

#	User	Runtime	Language	Date
1	Liam Scalzulli	0.04 s	Python 3	2022-07-28 16:50:43
2	Dailun Li	0.04 s	Python 3	2022-09-02 22:34:02
3	Christopher Parkinson	0.04 s	Python 3	2022-09-03 00:09:38
4	Fardin Abdullah	0.04 s	Python 3	2022-09-03 01:58:07
5	Saad Shahbaz	0.04 s	Python 3	2022-09-03 02:04:14
6	Hanzhi Zhang	0.04 s	Python 3	2022-09-03 07:21:25
7	Ryan Senoune	0.04 s	Python 3	2022-09-03 16:31:21
8	Emma Rousseau	0.04 s	Python 3	2022-09-03 18:09:45
9	Claire Feng	0.04 s	Python 3	2022-09-03 18:32:52
10	Neil Rahman	0.04 s	Python 3	2022-09-03 19:26:30

#	User	Runtime	Language	Date
1	Jordan Marcus	0.04 s	Python 3 with NumPy	2024-09-11 05:48:14
2	Shusheng Liu	0.04 s	Python 3 with NumPy	2024-09-11 07:38:14
3	Hidden user	0.04 s	Python 3 with NumPy	2024-09-11 21:50:47
4	Ryan Zhao	0.04 s	Python 3 with NumPy	2025-09-04 05:48:54
5	L Denney	0.04 s	Python 3 with NumPy	2025-09-05 22:32:45
6	Hidden user	0.04 s	Python 3 with NumPy	2025-09-05 23:35:51
7	Hidden user	0.04 s	Python 3 with NumPy	2025-09-08 21:52:19
8	hannah dacks	0.04 s	Python 3 with NumPy	2025-09-08 23:27:20
9	Yutong Liu	0.04 s	Python 3 with NumPy	2025-09-09 00:30:04
10	Jun Hao Huang	0.04 s	Python 3 with NumPy	2025-09-09 23:43:34

#	User	Runtime	Language	Date
1	Constantin Buruiana	0.00 s	Rust	2024-09-08 00:27:51
2	Louis Bouchard	0.00 s	Rust	2024-09-08 05:01:39

#	User	Length	Language	Date
1	Nazim Djeradi	501	C	2022-09-11 00:00:56
2	Christopher Ghosn	555	C	2025-09-07 05:11:49
3	Fateeha Hasnain	561	C	2022-01-10 00:42:33
4	selyann berrada	752	C	2024-09-05 03:21:06

#	User	Length	Language	Date
1	Helen Lin	1271	C#	2021-09-09 21:42:10

#	User	Length	Language	Date
1	Liam Scalzulli	344	C++	2022-07-28 02:12:16
2	Nikola Katov	437	C++	2023-08-31 00:52:03
3	Alice Chu	453	C++	2022-09-04 03:13:02
4	Jiechen Zhang	487	C++	2022-01-11 22:19:57
5	Mohamed Ben Mekki	501	C++	2022-09-03 20:19:27
6	Ang Dai	502	C++	2025-09-05 15:33:58
7	Zhengsong Zhang	512	C++	2023-09-08 20:09:57
8	Youngsun Yoo	528	C++	2023-09-01 23:20:09
9	Josh Weinstein	535	C++	2024-09-12 03:00:01
10	Jake Zhao	545	C++	2021-09-08 18:48:32

#	User	Length	Language	Date
1	Dan Greco	238	Haskell	2025-09-05 17:53:43
2	Allan Wei	410	Haskell	2021-10-09 23:02:02

#	User	Length	Language	Date
1	Winston Wei	507	Java	2022-09-11 17:13:26
2	Yimu Zhang	550	Java	2022-09-09 20:16:47
3	Yilin An	560	Java	2022-09-10 05:56:12
4	Maoyu Wang	565	Java	2022-01-12 07:04:56
5	Rose Liu	602	Java	2021-09-10 06:31:27
6	Tristan Stevens	609	Java	2022-01-06 02:37:50
7	Monica Li	625	Java	2024-09-07 16:31:34
8	Gabe Woloz	646	Java	2024-09-05 01:40:34
9	Xiaoyi Li	647	Java	2022-01-14 16:08:06
10	Hamza Usmani	664	Java	2021-09-09 03:47:17

#	User	Length	Language	Date
1	Brandon Sovran	256	Python 2	2022-01-08 05:19:06
2	Arshia Rashedzadeh	348	Python 2	2025-09-06 18:49:33
3	Sarah Abou-Zahr	460	Python 2	2025-09-06 14:41:09

#	User	Length	Language	Date
1	Henri Lemoine	138	Python 3	2022-09-09 23:03:30
2	Andrew Mackenzie	148	Python 3	2022-09-07 05:26:31
3	Louis-Alexandre Jobin-Colgan	168	Python 3	2023-09-06 17:08:18
4	Carlos Hidalgo Montesino	175	Python 3	2023-09-07 08:06:22
5	Anthony Azrak	184	Python 3	2024-09-10 03:11:24
6	Maya Scott-Lourenço	188	Python 3	2022-09-11 05:03:38
7	Fraser Lee	196	Python 3	2022-01-06 13:39:02
8	Connor Rook	199	Python 3	2024-09-06 20:02:12
9	Sam Chen	204	Python 3	2025-09-11 02:55:16
10	Adam Al-Attrach	208	Python 3	2025-09-06 20:54:31

#	User	Length	Language	Date
1	L Denney	200	Python 3 with NumPy	2025-09-05 22:32:45
2	Tong Wu	258	Python 3 with NumPy	2025-09-10 00:01:29
3	Qi Zeng	262	Python 3 with NumPy	2025-09-10 07:42:47
4	Sohum Guha	287	Python 3 with NumPy	2025-09-15 01:09:32
5	Ryan Zhao	313	Python 3 with NumPy	2025-09-04 05:48:54
6	Shusheng Liu	325	Python 3 with NumPy	2024-09-11 07:38:14
7	Yutong Liu	336	Python 3 with NumPy	2025-09-09 00:30:04
8	Ethan Church	356	Python 3 with NumPy	2025-09-10 13:38:26
9	Jordan Marcus	362	Python 3 with NumPy	2024-09-11 05:48:14
10	Hidden user	384	Python 3 with NumPy	2024-09-11 21:50:47

#	User	Length	Language	Date
1	Louis Bouchard	651	Rust	2024-09-08 05:01:39
2	Constantin Buruiana	703	Rust	2024-09-08 00:27:51

Solution running time distribution