Problem C
Doorman — Problem Statistics

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Submissions	1669
Accepted submissions	590
Submission ratio	35.35%
Authors	554
Full solves [?]	514
Full solve Ratio	92.78%

#	User	Runtime	Language	Date
1	Molly Jacobsen	0.00 s	C	2021-10-09 00:53:57
2	Nazim Djeradi	0.00 s	C	2022-09-13 21:19:31
3	hilal elghoulti	0.00 s	C	2024-09-12 01:40:56
4	selyann berrada	0.00 s	C	2024-09-12 01:55:12
5	Hidden user	0.00 s	C	2025-09-19 03:37:33

#	User	Runtime	Language	Date
1	Felicia Chen-She	0.02 s	Go	2022-09-26 00:50:41

#	User	Runtime	Language	Date
1	Dan Greco	0.00 s	Haskell	2025-09-13 19:24:23

#	User	Runtime	Language	Date
1	Daniel Aarao Reis Arturi	0.04 s	Java	2024-09-12 03:58:14
2	Bogdan Timercan	0.04 s	Java	2025-09-10 23:37:18
3	Justin Bondurant-David	0.06 s	Java	2021-10-09 00:02:35
4	Matthew Goodman	0.06 s	Java	2021-10-09 00:54:20
5	Massimo Vicenzo	0.06 s	Java	2021-10-09 01:05:18
6	Daniel Alzawahra	0.08 s	Java	2025-09-14 07:32:15
7	Nehir Özsunar	0.08 s	Java	2025-09-18 23:40:07
8	Chen Yue	0.09 s	Java	2022-09-10 06:35:09
9	Sajad Wazin	0.09 s	Java	2022-09-11 04:04:08
10	Linda Hu	0.09 s	Java	2022-09-12 22:18:27

#	User	Runtime	Language	Date
1	Andrew Mackenzie	0.04 s	Python 3	2022-09-09 21:23:43
2	Chuntao Hu	0.04 s	Python 3	2022-09-09 22:22:00
3	Andrew Mackenzie	0.04 s	Python 3	2022-09-09 22:57:35
4	Henri Lemoine	0.04 s	Python 3	2022-09-10 01:15:16
5	Christopher Parkinson	0.04 s	Python 3	2022-09-10 01:46:25
6	Yi Jia Tan	0.04 s	Python 3	2022-09-10 04:52:02
7	Samuel Park	0.04 s	Python 3	2022-09-10 19:32:10
8	Jennifer Tran	0.04 s	Python 3	2022-09-10 21:29:08
9	Neil Rahman	0.04 s	Python 3	2022-09-10 21:41:07
10	Dailun Li	0.04 s	Python 3	2022-09-10 23:04:53

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Python 3 with NumPy	2024-09-17 05:39:01
2	Shusheng Liu	0.04 s	Python 3 with NumPy	2024-09-19 00:20:46
3	Ryan Zhao	0.04 s	Python 3 with NumPy	2025-09-09 04:19:21
4	Yutong Liu	0.04 s	Python 3 with NumPy	2025-09-15 22:46:52
5	hannah dacks	0.04 s	Python 3 with NumPy	2025-09-18 04:52:14
6	Mikhael Pechonkin	0.04 s	Python 3 with NumPy	2025-09-18 19:06:53
7	Qi Zeng	0.04 s	Python 3 with NumPy	2025-09-18 20:59:56
8	Hidden user	0.04 s	Python 3 with NumPy	2025-09-18 22:23:24
9	Ethan Church	0.04 s	Python 3 with NumPy	2025-09-19 01:22:06
10	Sarvasv Arora	0.05 s	Python 3 with NumPy	2023-09-08 07:58:52

#	User	Runtime	Language	Date
1	Louis Bouchard	0.00 s	Rust	2024-09-16 02:12:06

#	User	Length	Language	Date
1	Nazim Djeradi	806	C	2022-09-13 21:19:31
2	hilal elghoulti	832	C	2024-09-12 01:40:56
3	Molly Jacobsen	974	C	2021-10-09 00:53:57
4	Hidden user	1093	C	2025-09-19 03:37:33
5	selyann berrada	1385	C	2024-09-12 01:55:12

#	User	Length	Language	Date
1	Tian Bai	507	C++	2022-09-11 22:33:07
2	Zhengsong Zhang	547	C++	2023-09-15 18:49:19
3	Ang Dai	618	C++	2025-09-13 22:16:19
4	Aryan Chaturvedi	640	C++	2023-09-14 19:52:25
5	Mihail Anghelici	652	C++	2022-09-09 22:22:10
6	Nikola Katov	659	C++	2023-09-08 12:37:26
7	Hidden user	739	C++	2021-10-08 23:45:29
8	Youngsun Yoo	754	C++	2023-09-15 02:16:55
9	Joey Yu	845	C++	2025-09-09 01:16:34
10	Ming Yang	868	C++	2024-09-18 04:31:03

#	User	Length	Language	Date
1	Felicia Chen-She	2540	Go	2022-09-26 00:50:41

#	User	Length	Language	Date
1	Dan Greco	943	Haskell	2025-09-13 19:24:23

#	User	Length	Language	Date
1	Yimu Zhang	590	Java	2022-09-16 03:34:36
2	Mykyta Bychkov	779	Java	2024-09-18 00:56:19
3	Khalil Alobeid	779	Java	2024-09-19 02:34:22
4	Barry Lu	800	Java	2024-09-19 01:16:00
5	Junjie Yang	813	Java	2021-10-08 23:15:05
6	Michael Lafave	828	Java	2021-10-09 00:17:10
7	Rose Liu	848	Java	2021-10-20 05:12:57
8	Shiqi Tan	914	Java	2023-09-14 05:39:10
9	Anna Reining	916	Java	2023-09-12 18:06:07
10	Peter Montgomery	961	Java	2023-09-16 03:44:25

#	User	Length	Language	Date
1	Henri Lemoine	97	Python 3	2022-09-14 07:04:53
2	Daniel Ramos	213	Python 3	2025-09-17 22:49:45
3	Alex Lai	246	Python 3	2023-09-10 07:26:02
4	Kevin Deng	247	Python 3	2025-06-26 22:22:19
5	Jamie Wise	253	Python 3	2025-09-12 01:57:14
6	Gabriel Karasik	257	Python 3	2024-09-14 21:55:22
7	Eggie Wu	258	Python 3	2021-10-09 00:46:25
8	Victor Chen	267	Python 3	2022-09-16 05:58:12
9	Mill Toyingsirikul	272	Python 3	2023-09-10 08:57:04
10	Alex Valera Maltseva	284	Python 3	2024-09-16 21:57:28

#	User	Length	Language	Date
1	Yutong Liu	552	Python 3 with NumPy	2025-09-17 22:48:39
2	Hidden user	799	Python 3 with NumPy	2024-09-17 05:39:01
3	Ryan Zhao	828	Python 3 with NumPy	2025-09-09 04:19:21
4	Hidden user	836	Python 3 with NumPy	2025-09-18 22:23:24
5	Sarvasv Arora	888	Python 3 with NumPy	2023-09-08 07:58:52
6	Shusheng Liu	897	Python 3 with NumPy	2024-09-19 00:20:46
7	hannah dacks	1088	Python 3 with NumPy	2025-09-18 04:52:14
8	Qi Zeng	1117	Python 3 with NumPy	2025-09-18 20:59:56
9	Isabella Drouin	1268	Python 3 with NumPy	2023-09-13 20:43:24
10	Logan Labossiere	1277	Python 3 with NumPy	2023-09-15 23:11:41

#	User	Length	Language	Date
1	Louis Bouchard	1537	Rust	2024-09-16 02:12:06

Solution running time distribution