Problem A
Enlarging Hash Tables — Problem Statistics

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Submissions	5238
Accepted submissions	1699
Submission ratio	32.44%
Authors	1314
Full solves [?]	1146
Full solve Ratio	87.21%

#	User	Runtime	Language	Date
1	Samuel Wrååk	0.01 s	C	2016-11-21 19:19:07
2	Yang Chenglong	0.01 s	C	2019-03-09 06:47:48
3	Jón Steinn Elíasson	0.01 s	C	2020-03-20 23:08:27
4	Sambit Palit	0.01 s	C	2020-11-27 03:56:09
5	shige yoshi	0.01 s	C	2021-08-28 18:50:42
6	Colton Matthews	0.01 s	C	2022-11-07 15:08:05
7	BHARATH RAJIV A	0.01 s	C	2023-01-03 10:25:36
8	Sarah Odigie	0.01 s	C	2023-04-08 19:07:00
9	Hyundoo Jeong	0.01 s	C	2023-04-08 19:27:54
10	Somaiya Alam	0.01 s	C	2023-04-08 19:34:19

#	User	Runtime	Language	Date
1	Yé Wai Yan	0.03 s	C#	2016-05-16 16:16:02
2	Filip Stenström	0.03 s	C#	2018-06-13 19:43:28
3	Klas af Geijerstam	0.05 s	C#	2016-12-12 14:07:37
4	Rasmus Brants	0.05 s	C#	2017-05-18 21:00:58
5	Arif Rahman	0.05 s	C#	2018-09-18 17:03:34
6	Gustav Kalander	0.05 s	C#	2018-09-22 10:52:29
7	Mikkel Holmer Pedersen	0.06 s	C#	2018-09-19 09:09:34
8	Joshua Jacoby	0.06 s	C#	2020-05-24 21:59:21
9	Khin Nyunt	0.13 s	C#	2016-04-11 06:58:10
10	Tomaž Kramer	0.13 s	C#	2016-11-28 01:32:40

#	User	Runtime	Language	Date
1	Khin Nyunt	0.11 s	Go	2023-09-13 11:41:47
2	Erik Rairden	0.12 s	Go	2021-01-01 00:50:47
3	Norbert Voelker	0.13 s	Go	2021-11-05 23:00:34
4	Steven Cheng	0.14 s	Go	2020-06-03 20:56:26

#	User	Runtime	Language	Date
1	Brent Yorgey	0.07 s	Haskell	2017-09-30 04:23:07
2	Alex Shah	0.16 s	Haskell	2017-04-29 16:45:59
3	Michael Guarino	0.16 s	Haskell	2017-05-03 02:30:23
4	Lars Tveito	0.19 s	Haskell	2015-09-24 01:24:13

#	User	Runtime	Language	Date
1	Sven Rönnbäck	0.08 s	Java	2023-05-27 20:52:56
2	Paul Boddington	0.09 s	Java	2016-05-05 02:05:47
3	Mehdi Ichou	0.09 s	Java	2017-04-16 16:56:50
4	Love Engman	0.10 s	Java	2016-06-10 10:35:13
5	Erik Baalhuis	0.10 s	Java	2016-08-04 23:32:56
6	Samuel Klingström	0.10 s	Java	2017-05-12 13:30:59
7	Liam Keliher	0.10 s	Java	2018-07-20 01:29:14
8	Emil Bak-Møller	0.10 s	Java	2022-03-01 01:24:52
9	Sawyer Stanley	0.11 s	Java	2022-07-21 16:57:08
10	Dennis Shi	0.12 s	Java	2015-12-28 03:27:52

#	User	Runtime	Language	Date
1	Khin Nyunt	0.45 s	JavaScript (Node.js)	2021-10-02 17:25:07

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.03 s	JavaScript (SpiderMonkey)	2016-08-28 21:16:15
2	Michael Laszlo	0.03 s	JavaScript (SpiderMonkey)	2016-10-06 17:11:19
3	Piotr Karpala	0.04 s	JavaScript (SpiderMonkey)	2018-09-26 06:05:19
4	Zach Tschetter	0.08 s	JavaScript (SpiderMonkey)	2023-06-16 00:01:32
5	Christian Pilegaard Cederquist	0.51 s	JavaScript (SpiderMonkey)	2023-05-29 18:46:11

#	User	Runtime	Language	Date
1	Timothy Gaede	0.62 s	Julia	2024-06-05 04:54:13

#	User	Runtime	Language	Date
1	Chelsea Hoernemann	0.16 s	Kotlin	2022-11-11 05:03:46
2	Przemysław Curzytek	0.17 s	Kotlin	2018-09-19 04:24:31
3	Adam Rankin	0.23 s	Kotlin	2023-09-19 00:58:01
4	Hidden user	0.26 s	Kotlin	2021-05-05 11:16:54
5	Phường Lên	0.29 s	Kotlin	2020-01-31 00:30:50
6	Adam Koprowski	0.29 s	Kotlin	2021-04-06 13:04:44
7	Paul McBurney	0.29 s	Kotlin	2025-09-05 01:12:00
8	Dayan Ruben Gonzalez	0.32 s	Kotlin	2020-09-29 17:54:32
9	Hidden user	0.33 s	Kotlin	2020-03-11 03:27:36

#	User	Runtime	Language	Date
1	Ingemar Ragnemalm	0.04 s	Pascal	2019-01-08 15:12:13

#	User	Runtime	Language	Date
1	Christofer Ohlsson	0.08 s	Python 2	2017-04-28 10:54:28
2	Thomas Feld	0.09 s	Python 2	2020-07-10 11:28:38
3	Johan Lyts	0.11 s	Python 2	2019-05-31 15:14:23
4	Fredrik Horn Dannert	0.11 s	Python 2	2021-01-09 13:26:52
5	Peter Fajner	0.12 s	Python 2	2016-11-19 21:47:17
6	Jonathan Ibanez	0.12 s	Python 2	2017-01-27 23:49:48
7	Andre Pratama	0.12 s	Python 2	2017-09-10 08:58:53
8	Yanmarshus Bachtiar	0.12 s	Python 2	2020-09-21 11:01:55
9	Hermon Mulat	0.16 s	Python 2	2016-11-09 16:54:33
10	Lars Åström	0.16 s	Python 2	2019-10-08 08:09:51

#	User	Runtime	Language	Date
1	Prateek Bhakta	0.05 s	Python 3	2019-02-22 00:40:36
2	Jarrod Pas	0.06 s	Python 3	2019-02-16 00:10:07
3	Dominic Berzin Chua Way Gin	0.07 s	Python 3	2025-04-18 08:30:58
4	Nathan Collins	0.08 s	Python 3	2016-08-19 16:55:42
5	Melody Horn	0.08 s	Python 3	2017-08-26 02:54:54
6	Nicolas Sanchez	0.08 s	Python 3	2025-05-09 07:23:43
7	Jiaming Kong	0.08 s	Python 3	2025-06-25 02:36:03
8	Ethan	0.08 s	Python 3	2025-07-22 11:24:01
9	Josenildo Silva	0.09 s	Python 3	2017-01-04 22:32:08
10	Mark Meysenburg	0.09 s	Python 3	2023-09-27 19:40:47

#	User	Runtime	Language	Date
1	Clement Oh	0.09 s	Ruby	2024-01-08 12:00:57
2	Hidden user	0.57 s	Ruby	2020-08-17 04:48:55

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-12-09 22:59:48
2	Artur Khuziakhmetov	0.00 s	Rust	2025-01-29 13:15:51
3	Ming Kang	0.01 s	Rust	2025-06-06 09:25:17
4	Thomas Hügel	0.02 s	Rust	2020-03-09 18:26:34
5	Akemi Izuko	0.04 s	Rust	2022-11-14 00:34:48
6	Isak Jägberg	0.05 s	Rust	2020-11-19 18:11:42
7	Ratel Alexandre	0.05 s	Rust	2023-10-01 20:36:42
8	Bas Dirks	0.06 s	Rust	2022-02-01 14:39:40
9	Christofer Nolander	0.09 s	Rust	2019-10-17 18:09:35
10	Aaron Lengyel	0.09 s	Rust	2021-11-17 19:37:10

#	User	Length	Language	Date
1	Mirel Cosulschi	442	C	2025-01-15 21:42:38
2	Marcus Blücher	514	C	2020-01-18 17:20:21
3	Ayoub Chegraoui	562	C	2018-01-11 17:34:03
4	Hidden user	616	C	2021-11-12 22:41:01
5	Sarah Odigie	633	C	2023-04-08 19:07:00
6	Somaiya Alam	633	C	2023-04-08 19:34:19
7	Taha	633	C	2023-04-08 20:39:22
8	Zakariya Alhabibi	638	C	2023-04-08 20:35:08
9	shige yoshi	666	C	2021-08-28 18:50:42
10	BHARATH RAJIV A	666	C	2023-01-03 10:25:36

#	User	Length	Language	Date
1	Khin Nyunt	800	C#	2016-04-11 06:58:10
2	Gustav Kalander	914	C#	2018-09-22 10:52:29
3	Mikkel Holmer Pedersen	1130	C#	2018-09-19 09:09:34
4	Rasmus Brants	1292	C#	2017-05-18 21:00:58
5	Tomaž Kramer	1505	C#	2016-11-28 01:32:40
6	Yé Wai Yan	1619	C#	2016-05-16 16:16:02
7	Joshua Jacoby	2166	C#	2020-05-24 21:59:21
8	Klas af Geijerstam	3887	C#	2016-12-12 14:07:37
9	Arif Rahman	4474	C#	2018-09-18 17:03:34
10	Filip Stenström	52394	C#	2018-06-13 19:43:28

#	User	Length	Language	Date
1	Teikn Smith	220	C++	2022-10-07 06:56:56
2	Kaaden RumanCam	242	C++	2023-11-12 23:15:03
3	Dipto Acharjee	376	C++	2025-06-29 11:59:45
4	Zane Yu	377	C++	2019-01-01 04:43:16
5	Said Lakhfif	384	C++	2016-11-15 23:30:11
6	Mustefa Kamil	392	C++	2020-12-17 18:14:45
7	Liu Yang	415	C++	2017-03-19 18:35:50
8	Floris Golbach	420	C++	2017-10-05 16:02:51
9	Kiên Nguyễn Tiến Trung	425	C++	2017-03-16 09:43:13
10	Herman Karlsson	426	C++	2015-09-09 22:35:04

#	User	Length	Language	Date
1	Khin Nyunt	588	Go	2023-09-13 11:41:47
2	Steven Cheng	622	Go	2020-06-03 20:56:26
3	Norbert Voelker	643	Go	2021-11-05 23:00:34
4	Erik Rairden	846	Go	2021-01-01 00:50:47

#	User	Length	Language	Date
1	Alex Shah	478	Haskell	2017-04-29 16:45:59
2	Brent Yorgey	497	Haskell	2017-09-30 04:23:07
3	Lars Tveito	542	Haskell	2015-09-24 01:24:13
4	Michael Guarino	566	Haskell	2017-05-03 03:10:40

#	User	Length	Language	Date
1	James McDowell	414	Java	2018-09-15 23:12:11
2	Melvin Tan Jun Keong	519	Java	2017-03-15 15:47:05
3	Doug Goodman	521	Java	2017-11-07 14:43:39
4	Thomas King	557	Java	2020-07-30 21:45:28
5	Lim Hong Hui Eugene	558	Java	2020-04-16 06:11:15
6	Brenden Zacek	566	Java	2022-10-01 01:08:02
7	William Gan	575	Java	2017-03-15 15:08:24
8	Jason Tomkins	599	Java	2019-01-17 02:09:22
9	Bay Wei Heng	604	Java	2017-08-26 12:32:52
10	Mouhssine Assaoud	613	Java	2016-10-19 16:06:19

#	User	Length	Language	Date
1	Khin Nyunt	1095	JavaScript (Node.js)	2021-10-02 17:25:07

#	User	Length	Language	Date
1	Zach Tschetter	596	JavaScript (SpiderMonkey)	2023-06-16 00:01:32
2	Bjørn Chr. Soltvedt	608	JavaScript (SpiderMonkey)	2016-08-28 21:16:15
3	Michael Laszlo	771	JavaScript (SpiderMonkey)	2016-10-06 16:50:40
4	Christian Pilegaard Cederquist	2548	JavaScript (SpiderMonkey)	2023-05-29 18:46:11
5	Piotr Karpala	2635	JavaScript (SpiderMonkey)	2018-09-26 06:05:19

#	User	Length	Language	Date
1	Timothy Gaede	1828	Julia	2024-06-05 04:54:13

#	User	Length	Language	Date
1	Dayan Ruben Gonzalez	562	Kotlin	2020-09-29 17:54:32
2	Paul McBurney	579	Kotlin	2025-09-05 01:12:00
3	Adam Rankin	863	Kotlin	2023-09-19 00:58:01
4	Phường Lên	962	Kotlin	2020-01-31 00:30:50
5	Hidden user	1182	Kotlin	2021-05-05 11:16:54
6	Adam Koprowski	1438	Kotlin	2021-04-05 23:07:56
7	Hidden user	1783	Kotlin	2020-03-11 03:27:36
8	Chelsea Hoernemann	1991	Kotlin	2022-11-11 05:03:46
9	Przemysław Curzytek	4119	Kotlin	2018-09-19 04:24:31

#	User	Length	Language	Date
1	Ingemar Ragnemalm	780	Pascal	2019-01-08 15:12:13

#	User	Length	Language	Date
1	Ciara Godwin	352	Python 2	2018-04-05 22:35:50
2	Johan Lyts	516	Python 2	2019-05-31 15:14:23
3	Troels Bjerre Lund	521	Python 2	2020-02-18 18:56:16
4	Lars Åström	533	Python 2	2019-10-08 08:09:51
5	Andre Pratama	534	Python 2	2017-12-21 09:50:05
6	Andreas Björklund	560	Python 2	2020-10-25 16:37:25
7	Nick Rohn	562	Python 2	2017-08-28 22:46:46
8	Hermon Mulat	588	Python 2	2016-11-09 16:54:33
9	Jonathan Ibanez	670	Python 2	2017-01-27 23:49:48
10	Yanmarshus Bachtiar	685	Python 2	2020-09-21 11:01:55

#	User	Length	Language	Date
1	Benjamin Z White	156	Python 3	2023-05-28 22:55:36
2	Tai Tze Kin	199	Python 3	2024-05-04 22:57:31
3	Peter Stauder	215	Python 3	2023-01-19 21:33:42
4	Farzam Abrishami	263	Python 3	2023-12-31 01:51:32
5	Hrant Hovhannisyan	267	Python 3	2025-07-02 09:19:02
6	M Base 2	284	Python 3	2020-08-16 12:31:20
7	Ahmed Chamseddine	301	Python 3	2025-04-21 23:23:14
8	Yohannes Melese	302	Python 3	2020-12-17 20:12:17
9	Christian Blumenthal	330	Python 3	2024-08-16 00:40:27
10	Wenhao You	342	Python 3	2023-10-31 08:16:21

#	User	Length	Language	Date
1	Clement Oh	136	Ruby	2024-01-08 12:00:57
2	Hidden user	291	Ruby	2020-08-17 04:48:55

#	User	Length	Language	Date
1	Ratel Alexandre	831	Rust	2023-10-01 20:36:42
2	Thomas Hügel	963	Rust	2020-03-10 00:19:32
3	Zack Groff	1015	Rust	2019-08-02 18:57:12
4	Isak Jägberg	1623	Rust	2020-11-19 18:11:42
5	Vincent Lagerros	1653	Rust	2024-12-09 22:53:49
6	Akemi Izuko	2132	Rust	2022-11-14 00:34:48
7	Ming Kang	2377	Rust	2025-06-06 09:25:17
8	Artur Khuziakhmetov	2786	Rust	2025-01-29 13:15:51
9	Christofer Nolander	3205	Rust	2019-10-17 18:09:35
10	Bas Dirks	3296	Rust	2022-02-04 15:14:16

Solution running time distribution