Problem A
Reactivity Series — Problem Statistics

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Submissions	274
Accepted submissions	84
Submission ratio	30.66%
Authors	76
Full solves [?]	69
Full solve Ratio	90.79%

#	User	Runtime	Language	Date
1	Dagur Þórisson	0.05 s	C	2024-10-10 22:15:17

#	User	Runtime	Language	Date
1	Jóhannes Gunnar Heiðarsson	0.23 s	C#	2014-12-14 17:46:11

#	User	Runtime	Language	Date
1	Jóhann Örn Bjarkason	0.04 s	C++	2014-12-10 21:11:29
2	Hidden user	0.04 s	C++	2014-12-11 17:55:03
3	Tómas Magnússon	0.04 s	C++	2014-12-12 03:22:42
4	Ásgeir Atlason	0.04 s	C++	2014-12-14 18:13:09
5	Aron Orri Fannarsson	0.04 s	C++	2022-05-09 17:17:18
6	Aðalsteinn Leifs Maríuson	0.04 s	C++	2022-05-11 01:03:22
7	Róbert Ingi Arnarsson	0.04 s	C++	2022-05-12 19:41:16
8	Dagur Þórisson	0.04 s	C++	2024-10-10 22:02:23
9	Daníel Már Ægisson	0.04 s	C++	2025-10-08 15:29:43
10	Hafdís Erla Helgadóttir	0.05 s	C++	2014-12-10 15:23:30

#	User	Runtime	Language	Date
1	Ása Björk Valdimarsdóttir	0.40 s	Java	2014-12-12 22:27:11
2	Hidden user	0.42 s	Java	2014-12-14 02:40:17

#	User	Runtime	Language	Date
1	Gísli Bragi Hjartarson	0.11 s	Python 3	2024-10-14 01:10:34
2	Daniel Prizginas	0.12 s	Python 3	2025-10-03 23:56:56
3	Tomas Bragi Thorvaldsson	0.13 s	Python 3	2025-10-07 16:03:31
4	Aron	0.13 s	Python 3	2025-10-13 13:07:35
5	Hidden user	0.15 s	Python 3	2022-05-10 18:55:19
6	Alessandro Manfrini	0.19 s	Python 3	2024-10-13 13:18:14
7	Birgir Isar Guðbergsson	0.20 s	Python 3	2022-05-11 17:28:55
8	Hermann Helgi Þrastarson	0.20 s	Python 3	2024-10-13 23:18:29
9	Ágúst Máni Þorsteinsson	0.22 s	Python 3	2024-10-09 11:35:08
10	Magnús Friðrik Helgason	0.22 s	Python 3	2024-10-11 23:34:12

#	User	Length	Language	Date
1	Dagur Þórisson	744	C	2024-10-10 22:28:16

#	User	Length	Language	Date
1	Jóhannes Gunnar Heiðarsson	3633	C#	2014-12-14 17:46:11

#	User	Length	Language	Date
1	Dagur Þórisson	462	C++	2024-10-10 21:57:04
2	Bjarki Sigurðsson	1093	C++	2023-10-14 01:40:44
3	Tryggvi Ólafsson	1124	C++	2025-10-09 23:19:44
4	Sævar Örn Kjartansson	1188	C++	2014-12-10 19:44:46
5	Edda Pétursdóttir	1201	C++	2014-12-14 22:28:39
6	Teitur Hrólfsson	1208	C++	2025-10-10 17:05:45
7	Daníel Már Ægisson	1226	C++	2025-10-08 15:29:43
8	Guðmundur Már Kristmundsson	1243	C++	2022-05-11 04:39:54
9	Róbert Ingi Arnarsson	1275	C++	2022-05-12 19:41:16
10	Georg Styrmir Rúnarsson	1285	C++	2014-12-10 17:09:31

#	User	Length	Language	Date
1	Ása Björk Valdimarsdóttir	31744	Java	2014-12-12 22:29:48
2	Hidden user	47585	Java	2014-12-14 02:40:17

#	User	Length	Language	Date
1	Magnús Friðrik Helgason	705	Python 3	2024-10-11 23:34:12
2	Katrín Tinna	787	Python 3	2025-10-12 18:19:54
3	Aron	803	Python 3	2025-10-13 13:07:35
4	Hidden user	871	Python 3	2022-05-10 16:17:14
5	Tomas Bragi Thorvaldsson	882	Python 3	2025-10-07 16:03:31
6	Hidden user	884	Python 3	2022-05-10 18:55:19
7	Alessandro Manfrini	897	Python 3	2024-10-13 13:18:14
8	Ólafur Einar Ólafsson	900	Python 3	2024-10-13 23:52:56
9	Gísli Bragi Hjartarson	905	Python 3	2024-10-14 01:10:34
10	Milan Petrusic	916	Python 3	2024-10-08 11:38:21

Solution running time distribution