Problem I
Deduplicating Files — Problem Statistics

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Submissions	1008
Accepted submissions	199
Submission ratio	19.74%
Authors	233
Full solves [?]	173
Full solve Ratio	74.25%

#	User	Runtime	Language	Date
1	Vương Thiện Kiên	0.02 s	C++	2023-09-14 18:07:31
2	Michael Zilber	0.03 s	C++	2025-09-15 23:09:40
3	Nicolas Almerge	0.04 s	C++	2021-09-16 16:25:52
4	Zhangyuan Nie	0.04 s	C++	2021-09-17 00:40:45
5	Maoyu Wang	0.04 s	C++	2022-01-19 19:09:59
6	Alice Chu	0.04 s	C++	2022-09-15 22:19:39
7	Nikola Katov	0.04 s	C++	2023-09-08 14:38:01
8	David Lanyi	0.04 s	C++	2023-09-12 20:30:21
9	Ang Dai	0.04 s	C++	2025-09-16 03:55:13
10	Mike Gao	0.05 s	C++	2021-09-10 23:06:21

#	User	Runtime	Language	Date
1	Bogdan Timercan	0.30 s	Java	2025-09-13 09:34:08
2	Svyatoslav Sklokin	0.33 s	Java	2021-09-17 06:33:38
3	Nehir Özsunar	0.33 s	Java	2025-09-18 23:57:20
4	Sebastian Connelly	0.55 s	Java	2021-09-16 20:30:41
5	Justin Bondurant-David	0.64 s	Java	2021-09-13 02:01:17
6	Justin Huang	0.65 s	Java	2021-09-16 20:03:24
7	Nicholas George Triantos	0.65 s	Java	2023-09-13 20:46:37
8	Benjamin Ghaderi	0.68 s	Java	2025-09-14 03:13:13
9	Sajad Wazin	0.70 s	Java	2022-09-16 00:45:06
10	Yimu Zhang	0.71 s	Java	2022-09-16 04:08:47

#	User	Runtime	Language	Date
1	Joel Newman	0.03 s	OCaml	2023-09-16 01:39:36

#	User	Runtime	Language	Date
1	Christopher Ghosn	0.08 s	Python 3	2025-09-19 04:41:20
2	Sam Chen	0.09 s	Python 3	2025-09-18 20:45:24
3	Airlie Cassidy	0.10 s	Python 3	2025-09-18 01:27:13
4	Haorui Li	0.11 s	Python 3	2025-09-16 23:42:17
5	Jules Barbe	0.12 s	Python 3	2021-09-17 17:50:28
6	Adam Hochschild	0.12 s	Python 3	2021-09-17 18:50:21
7	Neil Rahman	0.12 s	Python 3	2022-09-11 19:06:18
8	Daniel Liao	0.12 s	Python 3	2025-09-14 22:44:19
9	Ian McFarland	0.12 s	Python 3	2025-09-15 17:07:13
10	Kanika Singh Pundir	0.12 s	Python 3	2025-09-18 18:29:51

#	User	Runtime	Language	Date
1	Qi Zeng	0.12 s	Python 3 with NumPy	2025-09-18 21:25:59
2	Hidden user	0.13 s	Python 3 with NumPy	2024-09-17 23:01:35
3	Jun Hao Huang	0.17 s	Python 3 with NumPy	2025-09-18 20:08:00
4	Ethan Church	0.21 s	Python 3 with NumPy	2025-09-18 16:56:59
5	Matas Keras	0.90 s	Python 3 with NumPy	2022-09-16 21:22:06

#	User	Length	Language	Date
1	Nikola Katov	824	C++	2023-09-08 14:38:01
2	Alice Chu	861	C++	2022-09-16 00:49:54
3	Vương Thiện Kiên	888	C++	2023-09-14 18:07:31
4	Maoyu Wang	928	C++	2022-01-19 19:09:59
5	Jiechen Zhang	973	C++	2022-01-12 19:11:25
6	David Lanyi	1037	C++	2023-09-12 20:30:21
7	Ang Dai	1103	C++	2025-09-16 03:55:13
8	Michael Zilber	1106	C++	2025-09-15 23:09:40
9	Mihail Anghelici	1108	C++	2022-09-15 02:34:36
10	Joey Yu	1121	C++	2025-09-10 05:24:02

#	User	Length	Language	Date
1	Sebastian Connelly	1084	Java	2021-09-16 20:30:41
2	Zoe Ho	1405	Java	2022-09-15 05:58:52
3	hilal elghoulti	1408	Java	2024-09-13 05:50:07
4	Yimu Zhang	1483	Java	2022-09-16 04:08:47
5	Benjamin Ghaderi	1497	Java	2025-09-14 03:13:13
6	Tuvshin Ganbold	1513	Java	2021-09-16 03:57:34
7	Katie Schunk	1519	Java	2021-09-17 06:15:29
8	Justin Huang	1531	Java	2021-09-16 20:03:24
9	Nehir Özsunar	1562	Java	2025-09-18 23:57:20
10	Jun Soo Kim	1567	Java	2023-09-15 20:27:25

#	User	Length	Language	Date
1	Joel Newman	4163	OCaml	2023-09-16 01:39:36

#	User	Length	Language	Date
1	Sam Chen	399	Python 3	2025-09-18 20:45:24
2	Claire Feng	497	Python 3	2022-09-11 19:50:21
3	Christopher Parkinson	571	Python 3	2022-09-11 22:29:37
4	Marie Li Chionis	581	Python 3	2024-09-16 18:50:48
5	Saad Zellag	584	Python 3	2024-09-18 00:18:07
6	Barthelemy Sere de Rivieres	589	Python 3	2025-09-18 23:09:55
7	Peter Yu	603	Python 3	2023-09-08 07:49:29
8	Maitree Hirunteeyakul	607	Python 3	2022-09-10 20:34:06
9	Kusha Sareen	609	Python 3	2022-01-14 02:54:32
10	Jatin Kalsi	622	Python 3	2025-09-15 01:37:13

#	User	Length	Language	Date
1	Hidden user	770	Python 3 with NumPy	2024-09-17 23:01:35
2	Qi Zeng	1101	Python 3 with NumPy	2025-09-18 21:25:59
3	Ethan Church	1242	Python 3 with NumPy	2025-09-18 16:56:59
4	Matas Keras	1283	Python 3 with NumPy	2022-09-16 21:22:06
5	Jun Hao Huang	1473	Python 3 with NumPy	2025-09-18 20:08:00

Solution running time distribution