Problem EK
I'm Thinking of a Number — Problem Statistics

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Submissions	3243
Accepted submissions	1028
Submission ratio	31.70%
Authors	873
Full solves [?]	689
Full solve Ratio	78.92%

#	User	Runtime	Language	Date
1	Agis Daniels	0.02 s	C	2021-12-23 13:01:31
2	Matthew Johnson	0.06 s	C	2015-07-22 17:31:24
3	Haobo Jiang	0.06 s	C	2015-12-28 18:01:12
4	Bergur Snorrason	0.06 s	C	2019-03-12 20:16:02
5	Joshua Somero	0.07 s	C	2025-04-03 01:01:23
6	Jón Steinn Elíasson	0.08 s	C	2017-06-06 11:16:17
7	Lam Nguyen	0.08 s	C	2017-10-29 17:49:51
8	Seth Carter	0.08 s	C	2017-11-21 04:53:37
9	Andrew Roberts	0.09 s	C	2018-04-24 00:46:45
10	Ng Wei Jie	0.09 s	C	2020-02-18 07:57:03

#	User	Runtime	Language	Date
1	Cody Barnes	0.27 s	C#	2016-10-02 21:37:00
2	Bas te Kolste	0.34 s	C#	2015-07-28 14:39:23
3	Pavel Volgarev	0.36 s	C#	2016-12-17 19:54:51
4	Mikael Fiala-Lundström	0.36 s	C#	2022-05-09 21:35:07

#	User	Runtime	Language	Date
1	Agis Daniels	0.02 s	C++	2019-11-24 19:01:42
2	Francisco Bruno Dias Ribeiro da Silva	0.03 s	C++	2022-10-22 05:07:45
3	Joshua Lass	0.03 s	C++	2023-04-14 22:37:26
4	Joshua Lass	0.03 s	C++	2023-05-09 07:12:35
5	Rehim Memmedli	0.05 s	C++	2016-12-15 08:56:52
6	Bernhard Kartefla	0.05 s	C++	2016-12-29 15:44:55
7	Hieronymus de Jong	0.05 s	C++	2017-04-21 16:42:19
8	Abdelah Elouassif	0.05 s	C++	2017-05-02 22:09:11
9	Marcin Chłond	0.05 s	C++	2017-06-17 17:33:20
10	Hidden user	0.05 s	C++	2017-06-23 10:54:23

#	User	Runtime	Language	Date
1	Norbert Voelker	0.11 s	Go	2022-07-12 23:15:50

#	User	Runtime	Language	Date
1	David Wärn	0.15 s	Haskell	2015-06-01 12:33:11
2	Brent Yorgey	0.17 s	Haskell	2018-04-11 07:58:24
3	Ye Ji	0.19 s	Haskell	2017-04-22 21:34:03
4	Johan Meier	0.24 s	Haskell	2016-12-21 00:51:09
5	Hidden user	0.28 s	Haskell	2022-02-20 22:48:17
6	Mason Barnhill	0.31 s	Haskell	2023-05-06 05:27:48
7	Hidden user	0.46 s	Haskell	2017-02-21 17:45:01

#	User	Runtime	Language	Date
1	Victor Davidsson	0.18 s	Java	2017-12-12 17:18:53
2	Nguyễn Mạnh Phúc	0.19 s	Java	2015-10-30 04:50:20
3	Martin Wiberg Petersen	0.19 s	Java	2016-12-31 14:37:30
4	Joshua Chin	0.19 s	Java	2025-08-01 02:27:20
5	Måns Magnusson	0.20 s	Java	2016-08-17 19:48:30
6	Bjørn Dons	0.20 s	Java	2018-11-30 00:48:33
7	Matthew Fahrenbacher	0.21 s	Java	2017-02-04 20:55:23
8	Micah Stairs	0.22 s	Java	2016-06-04 05:43:32
9	Lucas Wood	0.22 s	Java	2016-11-09 23:00:35
10	Elaine Tran	0.23 s	Java	2017-02-08 05:55:09

#	User	Runtime	Language	Date
1	Peter Kedemo	0.08 s	JavaScript (SpiderMonkey)	2016-01-03 10:36:56
2	Michael Laszlo	0.15 s	JavaScript (SpiderMonkey)	2016-10-20 00:19:38
3	Christian Pilegaard Cederquist	0.16 s	JavaScript (SpiderMonkey)	2023-07-12 20:08:27
4	Zachary DeStefano	0.17 s	JavaScript (SpiderMonkey)	2019-09-28 23:25:18
5	Bjørn Chr. Soltvedt	0.18 s	JavaScript (SpiderMonkey)	2016-02-10 00:34:14
6	Zach Tschetter	0.18 s	JavaScript (SpiderMonkey)	2023-05-26 23:35:40
7	Gabriel Lau	0.63 s	JavaScript (SpiderMonkey)	2016-03-29 08:55:16

#	User	Runtime	Language	Date
1	Noszály Csaba	0.65 s	Julia	2025-04-22 07:43:18

#	User	Runtime	Language	Date
1	Adam Rankin	0.44 s	Kotlin	2023-09-14 23:28:26
2	Phường Lên	0.48 s	Kotlin	2020-01-26 04:27:10
3	Dayan Ruben Gonzalez	0.58 s	Kotlin	2020-10-05 15:44:49
4	Hidden user	0.70 s	Kotlin	2020-02-16 02:17:13
5	Adam Koprowski	0.70 s	Kotlin	2021-06-27 23:13:53

#	User	Runtime	Language	Date
1	Andriy Zyevakov	0.62 s	Prolog	2019-07-15 15:11:49

#	User	Runtime	Language	Date
1	Johan Wind	0.07 s	Python 2	2016-08-13 17:32:27
2	Johann Ly	0.07 s	Python 2	2018-09-28 10:06:44
3	Agis Daniels	0.07 s	Python 2	2019-11-28 14:02:59
4	Urban Pettersson	0.08 s	Python 2	2015-12-17 15:31:52
5	Maisam Arif	0.08 s	Python 2	2017-02-08 16:35:31
6	Jessica Fang	0.08 s	Python 2	2017-02-08 23:35:39
7	Nathan Villanueva	0.08 s	Python 2	2017-02-09 05:40:15
8	Rachel Campbell	0.08 s	Python 2	2017-02-10 07:10:21
9	Johan Lyts	0.08 s	Python 2	2019-05-30 20:47:57
10	Paulo Bu	0.09 s	Python 2	2015-05-01 13:28:15

#	User	Runtime	Language	Date
1	Ocram Esah	0.08 s	Python 3	2022-06-06 10:34:38
2	Colter Radke	0.08 s	Python 3	2025-09-27 02:37:56
3	Agis Daniels	0.09 s	Python 3	2020-08-04 23:07:49
4	Magnus Eide-Fredriksen	0.09 s	Python 3	2024-10-19 11:21:20
5	Joshua Coward	0.10 s	Python 3	2020-10-14 05:32:00
6	Hidden user	0.10 s	Python 3	2021-11-23 20:38:17
7	Raymond Christopher	0.10 s	Python 3	2023-12-19 03:52:01
8	Milena	0.10 s	Python 3	2025-02-11 19:36:07
9	Joneil Negrite	0.10 s	Python 3	2025-05-26 19:07:54
10	RandyWaterhouse	0.11 s	Python 3	2021-08-16 07:36:54

#	User	Runtime	Language	Date
1	Daniel Harder	0.39 s	Ruby	2018-09-01 05:39:22
2	Robert Haines	0.62 s	Ruby	2022-05-04 17:15:39
3	Conor O'Brien	0.89 s	Ruby	2022-03-22 22:16:06
4	Casper Christensen	0.91 s	Ruby	2016-02-13 11:26:26

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2025-07-12 15:07:07
2	Bas Dirks	0.08 s	Rust	2022-05-02 20:50:13
3	Isak Jägberg	0.10 s	Rust	2021-01-07 11:02:18
4	Muhammad Rais Fathin Mudzakir	0.10 s	Rust	2021-06-06 11:34:16
5	Mårten Nilsson	0.17 s	Rust	2020-11-27 20:26:04

#	User	Length	Language	Date
1	pengin	963	C	2021-10-05 13:49:38
2	Haobo Jiang	1189	C	2015-12-28 18:01:12
3	Matthew Johnson	1230	C	2015-07-22 17:31:24
4	Seth Carter	1536	C	2017-11-21 04:53:37
5	Andrew Roberts	1579	C	2018-04-24 00:46:45
6	Alexander Bilde Pedersen	1756	C	2025-04-07 13:55:20
7	Agis Daniels	1782	C	2021-12-23 13:01:31
8	Joshua Somero	1820	C	2025-04-03 01:01:23
9	Ng Wei Jie	2209	C	2020-02-18 07:57:03
10	Rajni Maandi	2209	C	2023-05-05 11:45:57

#	User	Length	Language	Date
1	Bas te Kolste	1915	C#	2015-07-28 14:39:23
2	Mikael Fiala-Lundström	3282	C#	2022-05-09 21:35:07
3	Cody Barnes	3362	C#	2016-10-02 21:37:00
4	Pavel Volgarev	5963	C#	2016-12-17 19:54:51

#	User	Length	Language	Date
1	Chase Hinesman	594	C++	2018-02-19 19:09:44
2	Herman Karlsson	632	C++	2015-05-28 23:51:49
3	William Gan	645	C++	2017-02-27 08:10:58
4	Hidden user	660	C++	2024-11-07 17:37:11
5	Garðar Ingvarsson	714	C++	2019-04-24 18:09:26
6	Sidhant Bansal	760	C++	2018-05-10 21:00:27
7	Thi Dai Loc	786	C++	2016-12-31 18:08:28
8	thiamine	791	C++	2023-09-17 15:32:09
9	Zane Yu	801	C++	2020-02-03 13:51:01
10	Kenneth Langedal	804	C++	2019-08-15 00:07:08

#	User	Length	Language	Date
1	Norbert Voelker	1891	Go	2022-07-12 23:20:45

#	User	Length	Language	Date
1	David Wärn	525	Haskell	2015-06-01 12:33:11
2	Johan Meier	1100	Haskell	2016-12-21 00:51:09
3	Mason Barnhill	1160	Haskell	2023-05-06 05:27:48
4	Hidden user	1398	Haskell	2017-02-21 17:45:01
5	Ye Ji	1484	Haskell	2017-04-22 21:34:03
6	Brent Yorgey	1785	Haskell	2018-04-11 07:58:24
7	Hidden user	1879	Haskell	2022-02-22 05:56:08

#	User	Length	Language	Date
1	Doug Goodman	1113	Java	2018-01-03 20:28:52
2	Andrew Polizzotto	1235	Java	2020-10-02 20:12:53
3	Crystal Sharpe	1478	Java	2020-02-07 20:13:09
4	Nathan Leake	1484	Java	2017-02-10 01:54:07
5	Finn Lidbetter	1496	Java	2016-09-06 00:45:35
6	Aaron Zhou	1556	Java	2023-04-08 01:15:48
7	SEBASTIAN VILLEGAS MEJIA	1666	Java	2017-02-12 02:53:33
8	Joshua Chin	1690	Java	2025-08-01 02:27:20
9	Ben Cobb	1704	Java	2023-11-02 04:51:10
10	Nathan Harold	1719	Java	2016-12-21 00:30:22

#	User	Length	Language	Date
1	Zach Tschetter	773	JavaScript (SpiderMonkey)	2023-05-26 23:35:40
2	Peter Kedemo	839	JavaScript (SpiderMonkey)	2016-01-03 10:36:56
3	Bjørn Chr. Soltvedt	970	JavaScript (SpiderMonkey)	2016-02-10 00:34:14
4	Christian Pilegaard Cederquist	984	JavaScript (SpiderMonkey)	2023-07-12 20:17:10
5	Zachary DeStefano	1084	JavaScript (SpiderMonkey)	2019-09-28 23:25:18
6	Gabriel Lau	1098	JavaScript (SpiderMonkey)	2016-03-29 08:55:16
7	Michael Laszlo	1288	JavaScript (SpiderMonkey)	2016-10-20 00:11:20

#	User	Length	Language	Date
1	Noszály Csaba	318	Julia	2025-04-22 07:57:10

#	User	Length	Language	Date
1	Adam Koprowski	1166	Kotlin	2021-06-27 23:13:53
2	Dayan Ruben Gonzalez	1217	Kotlin	2020-10-05 15:44:49
3	Phường Lên	1548	Kotlin	2020-01-26 04:27:10
4	Hidden user	1784	Kotlin	2020-02-16 02:17:13
5	Adam Rankin	2451	Kotlin	2023-09-14 23:28:26

#	User	Length	Language	Date
1	Andriy Zyevakov	1319	Prolog	2019-07-15 15:11:49

#	User	Length	Language	Date
1	Thomas Feld	423	Python 2	2020-07-22 10:40:10
2	Guan Yang Ze	573	Python 2	2019-10-01 07:36:29
3	Grant Ballard	577	Python 2	2019-01-17 23:12:13
4	Andreas Björklund	636	Python 2	2020-11-18 20:06:19
5	Dmitry Lyubshin	648	Python 2	2018-04-20 12:20:00
6	Johan Wind	657	Python 2	2016-08-13 17:32:27
7	Tore Norderud	743	Python 2	2015-05-03 22:48:16
8	Johan Lyts	770	Python 2	2019-05-30 20:47:57
9	Jessica Fang	776	Python 2	2017-02-08 23:35:39
10	Izzati Al Vandiar	782	Python 2	2015-11-07 17:47:31

#	User	Length	Language	Date
1	Jonathan de Koning	404	Python 3	2024-09-03 05:29:11
2	Oskar Haarklou Veileborg	480	Python 3	2020-02-07 10:13:32
3	Lim Dewen, Aloysius	490	Python 3	2021-05-06 12:11:14
4	David Brink	510	Python 3	2017-02-20 22:02:17
5	Evan Rose	572	Python 3	2023-04-29 07:37:32
6	Adrien Coulier	575	Python 3	2016-11-11 18:41:07
7	Christian Lindeström	577	Python 3	2016-10-12 14:15:59
8	Peter Stauder	582	Python 3	2023-04-20 20:01:46
9	Teikn Smith	585	Python 3	2024-05-18 18:11:52
10	Christian Blumenthal	611	Python 3	2021-07-20 12:25:10

#	User	Length	Language	Date
1	Conor O'Brien	488	Ruby	2022-03-22 22:16:06
2	Daniel Harder	597	Ruby	2018-09-01 05:39:22
3	Casper Christensen	712	Ruby	2016-02-13 11:26:26
4	Robert Haines	1171	Ruby	2022-05-04 17:15:39

#	User	Length	Language	Date
1	Bas Dirks	1688	Rust	2022-05-02 20:40:17
2	Mårten Nilsson	1839	Rust	2020-11-27 20:26:04
3	Isak Jägberg	3190	Rust	2021-01-07 11:02:18
4	Muhammad Rais Fathin Mudzakir	5360	Rust	2021-06-06 11:34:16
5	Vincent Lagerros	13449	Rust	2024-07-28 17:38:43

Solution running time distribution