Problem I
Missing Number — Problem Statistics

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Submissions	3285
Accepted submissions	954
Submission ratio	29.04%
Authors	1043
Full solves [?]	798
Full solve Ratio	76.51%

#	User	Runtime	Language	Date
1	Caedmon Evans	0.00 s	C	2021-03-06 21:48:56
2	Nick Wu	0.00 s	C	2021-07-08 21:02:49
3	Jeffrey Micono	0.00 s	C	2021-09-09 19:51:51
4	April Clark	0.00 s	C	2021-09-19 04:12:36
5	Osama Albahrani	0.00 s	C	2022-06-01 16:13:41
6	Alexander Bilde Pedersen	0.00 s	C	2025-02-21 14:33:09

#	User	Runtime	Language	Date
1	Jordan Ahlbrecht	0.02 s	C#	2022-11-13 03:02:53
2	Hidden user	0.02 s	C#	2022-11-14 00:36:47
3	Theodore Glenn	0.04 s	C#	2023-09-28 02:22:09
4	Aiden Bilyeu	0.04 s	C#	2023-09-30 03:28:35
5	Jonathan Hallström	0.04 s	C#	2023-10-22 11:43:04
6	Oskar Wennberg	0.04 s	C#	2023-10-22 11:46:23
7	Daniel Vestin	0.04 s	C#	2025-10-21 17:30:37

#	User	Runtime	Language	Date
1	Norbert Voelker	0.08 s	Go	2021-11-01 19:26:42

#	User	Runtime	Language	Date
1	Mason Barnhill	0.00 s	Haskell	2023-05-13 07:29:21
2	Brent Yorgey	0.01 s	Haskell	2021-05-20 15:00:35
3	Zach Tschetter	0.01 s	Haskell	2021-08-02 22:55:16
4	Øyvind Almli	0.01 s	Haskell	2021-11-13 18:50:59
5	Anders Aarsæther	0.01 s	Haskell	2021-11-16 10:57:38
6	Ng Tek In	0.01 s	Haskell	2022-09-16 18:43:17

#	User	Runtime	Language	Date
1	Guangyi Zhou	0.04 s	Java	2025-02-13 11:37:11
2	Quân Anh	0.05 s	Java	2024-04-25 07:52:08
3	Sunny Guan	0.06 s	Java	2021-03-06 20:10:58
4	Lior Barak	0.06 s	Java	2021-03-06 20:19:30
5	Evan Billingsley	0.06 s	Java	2021-03-06 20:56:26
6	Patrick Sullivan	0.06 s	Java	2021-03-06 22:56:56
7	Crystal Sharpe	0.06 s	Java	2021-05-20 06:04:47
8	Liam Keliher	0.06 s	Java	2021-05-20 21:54:00
9	Vu Minh Hieu	0.06 s	Java	2021-05-23 07:08:20
10	Theodoric Keith Lim	0.06 s	Java	2021-05-26 07:46:37

#	User	Runtime	Language	Date
1	ALPHONSE DESIRE JUNIOR ENAMA	0.04 s	JavaScript (Node.js)	2025-02-02 23:09:00
2	Peter Hairatidis	0.09 s	JavaScript (Node.js)	2023-09-12 23:59:04

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2021-05-21 13:10:52
2	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-04-04 01:25:12

#	User	Runtime	Language	Date
1	Timothy Gaede	0.56 s	Julia	2024-07-08 14:14:00

#	User	Runtime	Language	Date
1	Jacob Huebner	0.11 s	Kotlin	2021-09-10 21:25:06
2	Seba Villalobos	0.13 s	Kotlin	2021-03-06 20:09:10
3	Nicholas Johnson	0.13 s	Kotlin	2021-09-08 23:38:49
4	Sergey Jakobsen	0.18 s	Kotlin	2022-02-18 22:26:16
5	Adam Rankin	0.18 s	Kotlin	2023-05-15 07:13:16
6	Anthony DePaul	0.19 s	Kotlin	2021-03-06 21:51:32

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.00 s	Pascal	2023-03-22 17:45:29

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.02 s	Prolog	2024-01-14 09:36:30

#	User	Runtime	Language	Date
1	Andreas Björklund	0.03 s	Python 2	2021-05-21 06:48:38
2	Johan Lyts	0.03 s	Python 2	2021-05-25 11:48:11
3	Yanmarshus Bachtiar	0.03 s	Python 2	2021-05-31 02:51:40

#	User	Runtime	Language	Date
1	Brian lua	0.04 s	Python 3	2022-06-07 16:31:02
2	Kattis Speedrun	0.04 s	Python 3	2022-07-21 23:39:52
3	Haruto Tanaka	0.04 s	Python 3	2022-07-22 07:33:57
4	Jebb Song	0.04 s	Python 3	2022-07-22 11:44:12
5	Mikael Fiala-Lundström	0.04 s	Python 3	2022-08-14 00:10:31
6	Cheng Ho Lun Alan	0.04 s	Python 3	2022-08-14 14:58:41
7	Alvin Ng Yong Han	0.04 s	Python 3	2022-08-17 10:10:15
8	Joseph Scholl	0.04 s	Python 3	2022-09-07 23:56:21
9	Stoufa	0.04 s	Python 3	2022-10-07 23:07:56
10	Jackie Chen	0.04 s	Python 3	2022-10-09 15:41:29

#	User	Runtime	Language	Date
1	Thomas Feld	0.06 s	Ruby	2023-02-24 14:30:13
2	Clement Oh	0.06 s	Ruby	2023-11-06 09:21:20

#	User	Runtime	Language	Date
1	Lin Lee	0.00 s	Rust	2021-06-19 15:55:13
2	Bas Dirks	0.00 s	Rust	2022-01-26 17:22:26
3	Käthe Specht	0.00 s	Rust	2022-02-08 01:12:41
4	Taylor South	0.00 s	Rust	2023-09-13 00:15:31

#	User	Length	Language	Date
1	Nick Wu	363	C	2021-07-08 21:02:49
2	Caedmon Evans	412	C	2021-03-06 21:48:56
3	Osama Albahrani	443	C	2022-06-01 16:13:41
4	April Clark	521	C	2021-09-19 04:12:36
5	Alexander Bilde Pedersen	792	C	2025-02-21 14:33:09
6	Jeffrey Micono	877	C	2021-09-09 19:51:51

#	User	Length	Language	Date
1	Jonathan Hallström	230	C#	2023-10-22 11:43:04
2	Oskar Wennberg	244	C#	2023-10-22 11:46:23
3	Theodore Glenn	272	C#	2023-09-28 03:24:50
4	Aiden Bilyeu	400	C#	2023-09-30 03:28:35
5	Daniel Vestin	578	C#	2025-10-21 17:30:37
6	Jordan Ahlbrecht	1169	C#	2022-11-13 03:02:53
7	Hidden user	2170	C#	2022-11-14 00:36:47

#	User	Length	Language	Date
1	Sujay Vadlakonda	288	C++	2021-09-01 00:23:06
2	Subramanian Ramasamy	295	C++	2022-10-11 17:14:00
3	Hidden user	299	C++	2024-01-31 01:45:37
4	Joshua Brody	310	C++	2024-11-14 03:24:17
5	Grae Yeandle	315	C++	2021-11-12 18:26:39
6	Tabito	315	C++	2023-01-14 22:06:34
7	Christian Yongwhan Lim	320	C++	2023-06-05 01:07:18
8	August Bresnaider	322	C++	2023-11-28 01:34:40
9	hamzeh hamzeh	327	C++	2024-05-26 15:08:11
10	Quinn Gilbert	340	C++	2022-01-28 22:04:26

#	User	Length	Language	Date
1	Norbert Voelker	801	Go	2021-11-01 19:26:42

#	User	Length	Language	Date
1	Øyvind Almli	282	Haskell	2021-11-13 18:50:59
2	Mason Barnhill	318	Haskell	2023-05-13 07:29:21
3	Zach Tschetter	320	Haskell	2021-08-02 22:55:16
4	Anders Aarsæther	332	Haskell	2021-11-16 10:57:38
5	Ng Tek In	719	Haskell	2022-09-16 18:43:17
6	Brent Yorgey	4838	Haskell	2021-05-20 15:00:35

#	User	Length	Language	Date
1	Nicholas Mugleston	386	Java	2021-03-06 21:18:11
2	Kevin Kauffman	437	Java	2021-11-02 04:38:26
3	Andreas Guldborg Hansen	472	Java	2021-10-21 19:46:20
4	Darrin Wiley	484	Java	2021-08-28 06:04:59
5	sara maali	492	Java	2024-05-26 00:36:22
6	Johnathon Marshall	498	Java	2021-03-06 20:42:31
7	Nick Hargrove	501	Java	2021-11-24 21:47:53
8	Gabriel Caraballo	502	Java	2021-05-24 21:13:38
9	Daniel Ziegler	517	Java	2021-03-06 21:13:32
10	Esther Chong	539	Java	2023-08-14 18:29:38

#	User	Length	Language	Date
1	ALPHONSE DESIRE JUNIOR ENAMA	169	JavaScript (Node.js)	2025-02-02 23:16:51
2	Peter Hairatidis	1515	JavaScript (Node.js)	2023-09-12 23:59:04

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	171	JavaScript (SpiderMonkey)	2023-04-04 01:25:12
2	Bjørn Chr. Soltvedt	314	JavaScript (SpiderMonkey)	2021-05-29 11:44:13

#	User	Length	Language	Date
1	Timothy Gaede	513	Julia	2024-07-08 14:14:00

#	User	Length	Language	Date
1	Jacob Huebner	441	Kotlin	2021-09-10 21:25:06
2	Adam Rankin	523	Kotlin	2023-05-15 07:13:16
3	Anthony DePaul	572	Kotlin	2021-03-06 21:51:32
4	Seba Villalobos	717	Kotlin	2021-03-06 20:09:10
5	Sergey Jakobsen	742	Kotlin	2022-02-18 22:27:38
6	Nicholas Johnson	2342	Kotlin	2021-09-08 23:38:49

#	User	Length	Language	Date
1	Ingemar Ragnemalm	277	Pascal	2023-03-22 17:45:29

#	User	Length	Language	Date
1	Andriy Zyevakov	671	Prolog	2024-01-14 09:36:30

#	User	Length	Language	Date
1	Andreas Björklund	159	Python 2	2021-05-21 06:48:38
2	Johan Lyts	166	Python 2	2021-05-25 11:48:11
3	Yanmarshus Bachtiar	620	Python 2	2021-05-31 02:51:40

#	User	Length	Language	Date
1	Henna K	69	Python 3	2024-03-29 17:31:11
2	Lee Yi Heng	72	Python 3	2023-10-01 18:30:49
3	Clement Oh	73	Python 3	2023-06-19 13:41:03
4	ALPHONSE DESIRE JUNIOR ENAMA	81	Python 3	2025-02-02 23:22:07
5	Robert Boerwinkle	91	Python 3	2023-09-28 01:57:09
6	Tobias Bessler	94	Python 3	2023-09-28 02:06:19
7	Benjamin Z White	98	Python 3	2023-05-23 23:24:48
8	Peter Stauder	100	Python 3	2023-03-29 20:38:32
9	Ahmed Chamseddine	105	Python 3	2023-10-06 15:28:37
10	Evan Rose	109	Python 3	2023-02-28 02:27:09

#	User	Length	Language	Date
1	Thomas Feld	58	Ruby	2023-02-24 14:33:43
2	Clement Oh	120	Ruby	2023-11-06 09:21:20

#	User	Length	Language	Date
1	Bas Dirks	603	Rust	2022-01-26 17:22:26
2	Taylor South	713	Rust	2023-09-13 00:15:31
3	Lin Lee	746	Rust	2021-06-19 15:55:13
4	Käthe Specht	2967	Rust	2022-02-08 01:12:41

Solution running time distribution