Problem A
Watch Out For Those Hailstones! — Problem Statistics

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Submissions	5549
Accepted submissions	1624
Submission ratio	29.27%
Authors	1466
Full solves [?]	1251
Full solve Ratio	85.33%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.07 s	Bash	2024-05-08 17:49:49

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	C#	2019-09-19 18:38:26
2	Jan Matthiessen	0.02 s	C#	2020-08-23 11:51:19
3	Linda Andersson	0.02 s	C#	2021-07-13 10:34:12
4	Emil Clemedson	0.02 s	C#	2021-08-08 20:38:17
5	Hidden user	0.02 s	C#	2021-08-21 19:31:25
6	Mikael Fiala-Lundström	0.02 s	C#	2021-12-12 18:34:43
7	Nathan Gartlan	0.02 s	C#	2022-03-17 02:24:12
8	Petra Marc	0.02 s	C#	2022-07-14 10:00:10
9	traxex	0.04 s	C#	2024-05-08 12:41:41
10	Michael Damsgaard	0.04 s	C#	2025-01-05 07:48:39

#	User	Runtime	Language	Date
1	Christopher MacDonald	0.00 s	COBOL	2019-10-11 22:18:49

#	User	Runtime	Language	Date
1	Jacob Harris Cryer Kragh	0.03 s	F#	2023-03-04 20:59:41

#	User	Runtime	Language	Date
1	Ade Hendra	0.00 s	Go	2023-11-26 03:08:27
2	Mukhlas Rosyadi	0.00 s	Go	2023-11-26 16:35:56
3	Husain Satan	0.00 s	Go	2023-11-27 01:19:51
4	Dunk Dude	0.00 s	Go	2023-11-28 14:08:28
5	Zeheng Li	0.02 s	Go	2023-01-20 07:29:27
6	Norbert Voelker	0.08 s	Go	2021-09-25 00:19:49

#	User	Runtime	Language	Date
1	Ng Tek In	0.00 s	Haskell	2022-09-03 06:12:48
2	Paul Wild	0.00 s	Haskell	2023-03-24 03:48:16
3	Steinar Simonnes	0.00 s	Haskell	2024-03-30 11:45:47
4	Patrick T	0.00 s	Haskell	2024-11-13 21:09:40
5	Aurélien Pepin	0.01 s	Haskell	2019-10-04 23:55:37
6	Brent Yorgey	0.01 s	Haskell	2019-12-22 07:07:24
7	Tom Magnusson	0.01 s	Haskell	2020-04-17 23:36:00
8	Erik von Brömssen	0.01 s	Haskell	2021-06-26 00:35:16
9	Leslie Yip	0.01 s	Haskell	2022-09-26 09:41:13
10	Hidden user	0.01 s	Haskell	2022-11-22 11:16:49

#	User	Runtime	Language	Date
1	Rene Argento	0.04 s	Java	2025-03-16 21:45:54
2	Mark Meysenburg	0.05 s	Java	2024-04-10 17:12:49
3	Steven Cheng	0.06 s	Java	2020-05-05 07:23:05
4	Kadin Tang	0.06 s	Java	2020-07-10 23:06:36
5	Nathan Nguyen	0.06 s	Java	2020-07-16 22:16:05
6	Rohith Kumar	0.06 s	Java	2020-07-23 13:52:45
7	Emil Bak-Møller	0.06 s	Java	2021-08-08 23:09:59
8	Joachim Borup	0.06 s	Java	2021-11-03 18:18:44
9	Anish Kambhampati	0.06 s	Java	2022-01-12 17:20:07
10	Todd W. Neller	0.06 s	Java	2022-06-13 00:52:28

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	JavaScript (Node.js)	2024-11-09 21:18:26

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.02 s	JavaScript (SpiderMonkey)	2023-02-11 08:50:14
2	Evan Magill	0.02 s	JavaScript (SpiderMonkey)	2024-04-25 07:39:23
3	Jimmy Gustafsson	0.02 s	JavaScript (SpiderMonkey)	2025-07-16 23:16:20
4	Bjørn Chr. Soltvedt	0.04 s	JavaScript (SpiderMonkey)	2019-11-02 22:20:32

#	User	Runtime	Language	Date
1	Danny Robinson	0.51 s	Julia	2023-10-06 22:43:02
2	Timothy Gaede	0.59 s	Julia	2024-05-11 10:28:48

#	User	Runtime	Language	Date
1	Adam Rankin	0.16 s	Kotlin	2023-05-09 19:05:04
2	Thanh Le	0.17 s	Kotlin	2021-07-06 19:12:45
3	Sergey Jakobsen	0.18 s	Kotlin	2021-10-17 14:19:30
4	Phường Lên	0.20 s	Kotlin	2019-11-30 04:14:11

#	User	Runtime	Language	Date
1	Akbar Saputra	0.01 s	PHP	2023-09-12 16:48:59

#	User	Runtime	Language	Date
1	Siyuan Cao	0.03 s	Python 2	2018-09-17 17:26:31
2	Bowen Xia	0.03 s	Python 2	2018-09-17 17:30:44
3	Hidden user	0.03 s	Python 2	2018-09-17 17:35:20
4	Hidden user	0.03 s	Python 2	2018-09-17 17:36:55
5	Shanglun Li	0.03 s	Python 2	2018-09-17 20:25:10
6	Hidden user	0.03 s	Python 2	2018-09-17 20:28:18
7	Ping-Jung Liu	0.03 s	Python 2	2018-09-18 01:24:28
8	Hidden user	0.03 s	Python 2	2018-09-18 01:28:35
9	Hidden user	0.03 s	Python 2	2018-09-18 01:30:16
10	Hidden user	0.03 s	Python 2	2018-09-18 01:31:51

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	Python 3	2018-09-14 20:02:33
2	Hidden user	0.02 s	Python 3	2018-09-17 17:21:00
3	Zhao Zixuan	0.02 s	Python 3	2018-09-17 17:26:53
4	Hidden user	0.02 s	Python 3	2018-09-17 17:34:21
5	Hidden user	0.02 s	Python 3	2018-09-17 17:58:43
6	Hidden user	0.02 s	Python 3	2018-09-17 18:19:50
7	Hidden user	0.02 s	Python 3	2018-09-17 18:25:31
8	Hidden user	0.02 s	Python 3	2018-09-17 18:33:42
9	Hidden user	0.02 s	Python 3	2018-09-17 20:31:30
10	Hidden user	0.02 s	Python 3	2018-09-17 20:33:06

#	User	Runtime	Language	Date
1	Hidden user	0.04 s	Ruby	2018-09-17 20:20:47
2	Hidden user	0.04 s	Ruby	2019-11-06 07:57:05
3	Hidden user	0.04 s	Ruby	2019-12-05 05:05:23
4	Hidden user	0.05 s	Ruby	2018-09-27 23:52:16
5	Mark Donald Amobi	0.05 s	Ruby	2019-03-14 18:16:03
6	Hidden user	0.05 s	Ruby	2020-08-17 04:34:22
7	Hidden user	0.05 s	Ruby	2021-10-13 17:24:36
8	Thomas Feld	0.06 s	Ruby	2022-12-19 13:22:02
9	Chenzhang Hu	0.12 s	Ruby	2025-09-22 14:45:50

#	User	Runtime	Language	Date
1	Eric Pinter	0.00 s	Rust	2021-07-14 17:19:01
2	Bas Dirks	0.00 s	Rust	2022-01-04 18:10:58
3	Axel Lundberg	0.00 s	Rust	2022-06-19 01:07:55

#	User	Length	Language	Date
1	Chenzhang Hu	57	Bash	2025-09-13 18:01:20

#	User	Length	Language	Date
1	Kaaden RumanCam	81	C	2023-01-13 10:06:33
2	度雨	168	C	2025-03-06 14:08:07
3	Martin Neihoff	255	C	2020-02-10 13:47:55
4	William Taylor-Melanson	256	C	2019-09-18 18:23:17
5	Sambit Palit	271	C	2020-11-13 04:48:33
6	Salvador Loera	287	C	2020-08-13 06:44:59
7	Julian Duniec	296	C	2024-08-09 09:16:27
8	Hidden user	297	C	2022-07-17 16:48:11
9	Hidden user	321	C	2023-01-04 21:58:57
10	徐緯倫	334	C	2023-10-14 17:03:56

#	User	Length	Language	Date
1	traxex	147	C#	2024-05-08 12:41:41
2	Michael Damsgaard	320	C#	2025-01-05 07:48:39
3	Hidden user	425	C#	2019-09-19 18:38:26
4	Գոռ Բաղդասարյան	517	C#	2025-03-15 09:32:48
5	Mikael Fiala-Lundström	519	C#	2021-12-12 18:34:43
6	Petra Marc	556	C#	2022-07-14 10:00:10
7	Linda Andersson	596	C#	2021-07-13 10:34:12
8	Nathan Gartlan	694	C#	2022-03-17 02:24:12
9	Emil Clemedson	792	C#	2021-08-08 20:38:17
10	Hidden user	800	C#	2021-08-21 19:31:25

#	User	Length	Language	Date
1	Kaaden RumanCam	97	C++	2023-01-13 10:04:33
2	Frans Meulenbroeks	98	C++	2025-02-11 22:08:07
3	李昕	170	C++	2023-10-15 03:21:37
4	Bbshsh Si	184	C++	2021-11-19 04:58:52
5	Tzu Han Kao	193	C++	2022-10-16 07:31:46
6	huangshiyu0318	193	C++	2023-05-07 11:31:44
7	Avery πππ	196	C++	2022-10-30 03:14:55
8	PiPer	197	C++	2022-10-16 05:41:49
9	劉家佑	199	C++	2024-08-15 09:35:20
10	lucasliu	200	C++	2022-10-26 20:03:52

#	User	Length	Language	Date
1	Christopher MacDonald	7010	COBOL	2019-10-11 22:18:49

#	User	Length	Language	Date
1	Jacob Harris Cryer Kragh	375	F#	2023-03-04 20:59:41

#	User	Length	Language	Date
1	Zeheng Li	253	Go	2023-01-20 07:29:27
2	Mukhlas Rosyadi	273	Go	2023-11-26 16:35:56
3	Husain Satan	370	Go	2023-11-27 01:19:51
4	Norbert Voelker	390	Go	2021-09-25 00:19:49
5	Dunk Dude	432	Go	2023-11-28 14:08:28
6	Ade Hendra	772	Go	2023-11-26 03:08:27

#	User	Length	Language	Date
1	Paul Wild	104	Haskell	2023-03-24 03:48:16
2	Steinar Simonnes	189	Haskell	2024-03-30 11:46:17
3	Leslie Yip	193	Haskell	2022-09-26 09:41:13
4	Brandon Tang	205	Haskell	2023-11-22 16:04:00
5	Erik von Brömssen	246	Haskell	2021-06-26 00:35:16
6	Aurélien Pepin	263	Haskell	2019-10-04 23:55:37
7	Brent Yorgey	313	Haskell	2019-12-22 07:07:24
8	Tom Magnusson	372	Haskell	2020-04-17 23:36:00
9	Hidden user	426	Haskell	2022-11-22 11:16:49
10	Ng Tek In	575	Haskell	2022-09-03 06:12:48

#	User	Length	Language	Date
1	Jason Liu	237	Java	2023-06-16 23:56:10
2	Hidden user	327	Java	2018-09-17 17:27:19
3	Josh Henderson	368	Java	2019-12-16 04:44:52
4	Matthew Wurstner	377	Java	2019-09-19 03:32:42
5	Hidden user	378	Java	2019-09-17 06:04:16
6	Hidden user	388	Java	2019-09-17 05:54:57
7	Caeden Whitaker	395	Java	2020-06-29 00:58:18
8	Cory Austin	395	Java	2021-02-17 23:20:51
9	Ernest Ng Zi Xuan	397	Java	2023-06-21 10:56:55
10	Shuaiqi Ge	402	Java	2019-09-17 01:40:37

#	User	Length	Language	Date
1	Hidden user	645	JavaScript (Node.js)	2024-11-09 21:18:26

#	User	Length	Language	Date
1	Jimmy Gustafsson	69	JavaScript (SpiderMonkey)	2025-07-16 23:16:20
2	Christian Pilegaard Cederquist	109	JavaScript (SpiderMonkey)	2023-02-11 08:50:14
3	Evan Magill	132	JavaScript (SpiderMonkey)	2024-04-25 07:39:23
4	Bjørn Chr. Soltvedt	24253	JavaScript (SpiderMonkey)	2019-11-02 22:20:32

#	User	Length	Language	Date
1	Danny Robinson	79	Julia	2023-10-06 22:43:02
2	Timothy Gaede	274	Julia	2024-05-11 10:28:48

#	User	Length	Language	Date
1	Phường Lên	209	Kotlin	2019-11-30 04:14:11
2	Adam Rankin	287	Kotlin	2023-05-09 19:05:04
3	Sergey Jakobsen	326	Kotlin	2021-10-17 14:19:30
4	Thanh Le	353	Kotlin	2021-07-06 19:12:45

#	User	Length	Language	Date
1	Akbar Saputra	286	PHP	2023-09-12 16:48:59

#	User	Length	Language	Date
1	winnie	107	Python 2	2022-10-30 11:21:23
2	Justin Su	109	Python 2	2019-10-06 06:51:57
3	Johan Lyts	120	Python 2	2019-09-16 14:49:50
4	Olav Røthe Bakken	122	Python 2	2019-10-24 13:28:34
5	Guan Yang Ze	141	Python 2	2019-10-01 18:13:01
6	Zhao Ming	153	Python 2	2020-11-04 15:18:06
7	Ping-Jung Liu	154	Python 2	2018-09-18 01:24:28
8	Andreas Björklund	154	Python 2	2020-10-25 16:49:34
9	Shakeel Samsudeen	169	Python 2	2020-06-15 22:48:48
10	Kasper Borys	174	Python 2	2019-10-10 19:35:40

#	User	Length	Language	Date
1	Clement Oh	59	Python 3	2023-05-21 07:19:29
2	Kaaden RumanCam	61	Python 3	2023-01-13 09:21:53
3	Michael Goldwasser	65	Python 3	2024-03-23 17:11:15
4	David Aldenbro	67	Python 3	2025-08-25 10:41:39
5	Christofer Ohlsson	68	Python 3	2023-05-02 17:24:31
6	Lee Isaac	69	Python 3	2022-11-11 16:32:43
7	Thibault Raffaillac	69	Python 3	2024-08-19 17:48:25
8	Tai Tze Kin	76	Python 3	2024-05-09 09:33:12
9	Eduardo Vicente Petry	78	Python 3	2023-01-28 23:35:48
10	Christopher Jernberg	79	Python 3	2022-12-31 18:44:20

#	User	Length	Language	Date
1	Thomas Feld	48	Ruby	2022-12-19 13:25:19
2	Hidden user	121	Ruby	2020-08-17 04:34:22
3	Hidden user	123	Ruby	2021-10-13 17:24:36
4	Mark Donald Amobi	135	Ruby	2019-03-14 18:16:03
5	Chenzhang Hu	155	Ruby	2025-09-22 14:45:50
6	Hidden user	191	Ruby	2018-09-27 23:52:16
7	Hidden user	211	Ruby	2018-09-17 20:35:54
8	Hidden user	225	Ruby	2019-11-06 07:57:05
9	Hidden user	315	Ruby	2019-12-05 05:05:23

#	User	Length	Language	Date
1	Bas Dirks	424	Rust	2022-01-04 18:10:58
2	Axel Lundberg	442	Rust	2022-06-19 01:07:55
3	Eric Pinter	970	Rust	2021-07-14 17:19:01

Solution running time distribution