Problem I
Barcelona — Problem Statistics

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Submissions	770
Accepted submissions	380
Submission ratio	49.35%
Authors	337
Full solves [?]	318
Full solve Ratio	94.36%

#	User	Score	Language	Date
1	Óliver Máni	100	C	2019-08-20 22:04:53
2	Kristján Ómar Eggertsson	100	C	2024-06-21 20:52:31
3	Bergur Snorrason	100	C	2024-08-21 12:22:12
4	Alexander Bjartur Guðbjartsson	100	C	2024-11-28 02:33:42
5	Alexandros Hadjipaschalis	100	C	2025-10-15 18:50:36
6	Símon Páll Birgirsson	100	C	2026-01-14 15:10:46

#	User	Score	Language	Date
1	Gudjon Bjarki	100	F#	2024-01-12 23:26:15

#	User	Score	Language	Date
1	Hidden user	100	Go	2021-10-21 21:50:24

#	User	Score	Language	Date
1	Hidden user	100	Java	2019-03-23 19:36:32
2	Einar Þór Ívarsson	100	Java	2020-02-18 15:25:53
3	Guðrún Þöll Torfadóttir	100	Java	2021-03-24 10:28:11
4	Jakob Lars Kristmannsson	100	Java	2023-02-01 13:54:30
5	Ólafur Steinar Ragnarsson	100	Java	2023-02-14 18:23:57
6	Sigurbjörg Erla	100	Java	2023-11-17 14:42:43
7	Guðbjörg Viðja	100	Java	2023-11-17 17:27:15

#	User	Score	Language	Date
1	Róbert Kristian Freysson	100	JavaScript (Node.js)	2022-11-25 22:14:27
2	Hidden user	100	JavaScript (Node.js)	2023-01-09 13:03:15

#	User	Score	Language	Date
1	Mateusz Kolacz	100	JavaScript (SpiderMonkey)	2024-01-05 12:56:51

#	User	Score	Language	Date
1	Hidden user	100	Julia	2025-10-03 21:41:53

#	User	Score	Language	Date
1	Arnar Bjarni Arnarson	100	Prolog	2023-07-31 16:41:30

#	User	Score	Language	Date
1	Elvar Árni Bjarnason	100	Python 2	2019-03-23 18:53:49
2	Kristjan Orri	100	Python 2	2019-03-23 20:31:26
3	Dawid BWC	100	Python 2	2024-01-25 15:00:47

#	User	Score	Language	Date
1	Þorsteinn Sævar Kristjánsson	100	Ruby	2025-10-04 03:17:07

#	User	Score	Language	Date
1	Sverrir Hákon Marteinsson	100	Rust	2023-08-25 09:11:55
2	Theodór Leví Halldórsson	100	Rust	2025-09-30 12:57:37
3	Matthías Madsen Hauksson	100	Rust	2026-02-21 02:41:20

#	User	Runtime	Language	Date
1	Símon Páll Birgirsson	0.00 s	C	2026-01-14 15:24:16
2	Óliver Máni	0.01 s	C	2019-08-20 22:04:53
3	Kristján Ómar Eggertsson	0.01 s	C	2024-06-21 20:52:31
4	Bergur Snorrason	0.01 s	C	2024-08-21 12:22:12
5	Alexander Bjartur Guðbjartsson	0.01 s	C	2024-11-28 02:33:42
6	Alexandros Hadjipaschalis	0.01 s	C	2025-10-15 18:50:36

#	User	Runtime	Language	Date
1	Sigurjon Ingi	0.00 s	C++	2019-03-24 00:27:44
2	Atli Fannar Franklín	0.00 s	C++	2019-03-26 22:56:34
3	Benedikt Aron Sigurþórsson	0.00 s	C++	2019-06-10 19:29:28
4	Bjarni Thor Karason	0.00 s	C++	2019-11-26 11:50:52
5	Aron Orri Fannarsson	0.00 s	C++	2022-09-30 18:18:57
6	Joshua Andersson	0.00 s	C++	2024-07-14 22:56:09
7	Florian Cliquet	0.00 s	C++	2024-10-17 18:37:53
8	Yutong Wang	0.00 s	C++	2024-12-05 21:46:32
9	Benedikt Vilji Magnússon	0.01 s	C++	2019-04-14 15:34:08
10	Bjarki Hreinn Björnsson	0.01 s	C++	2022-02-12 18:08:23

#	User	Runtime	Language	Date
1	Gudjon Bjarki	0.09 s	F#	2024-01-12 23:26:15

#	User	Runtime	Language	Date
1	Hidden user	0.01 s	Go	2021-10-21 21:50:24

#	User	Runtime	Language	Date
1	Guðrún Þöll Torfadóttir	0.28 s	Java	2021-03-24 10:28:11
2	Einar Þór Ívarsson	0.42 s	Java	2020-02-18 15:25:53
3	Sigurbjörg Erla	0.43 s	Java	2023-11-17 14:42:43
4	Guðbjörg Viðja	0.44 s	Java	2023-11-17 17:27:15
5	Ólafur Steinar Ragnarsson	0.46 s	Java	2023-02-14 18:25:20
6	Hidden user	0.49 s	Java	2019-03-23 19:36:32
7	Jakob Lars Kristmannsson	0.51 s	Java	2023-02-01 13:54:30

#	User	Runtime	Language	Date
1	Hidden user	0.05 s	JavaScript (Node.js)	2023-01-09 13:03:15
2	Róbert Kristian Freysson	0.06 s	JavaScript (Node.js)	2022-11-25 22:14:27

#	User	Runtime	Language	Date
1	Mateusz Kolacz	0.03 s	JavaScript (SpiderMonkey)	2024-01-05 12:56:51

#	User	Runtime	Language	Date
1	Hidden user	0.33 s	Julia	2025-10-03 21:51:38

#	User	Runtime	Language	Date
1	Arnar Bjarni Arnarson	0.18 s	Prolog	2023-07-31 16:41:30

#	User	Runtime	Language	Date
1	Elvar Árni Bjarnason	0.08 s	Python 2	2019-03-23 18:53:49
2	Kristjan Orri	0.08 s	Python 2	2019-03-23 20:31:26
3	Dawid BWC	0.08 s	Python 2	2024-01-25 15:00:47

#	User	Runtime	Language	Date
1	Dagur Örvarsson	0.04 s	Python 3	2025-01-14 12:43:48
2	Kormákur Breki Gunnarsson	0.04 s	Python 3	2025-01-14 12:47:37
3	Eyþór Nói Tryggvason	0.04 s	Python 3	2025-02-20 18:45:48
4	Hrant Hovhannisyan	0.04 s	Python 3	2025-03-05 05:36:16
5	Pokeheart (Pokeheart)	0.04 s	Python 3	2025-03-08 23:14:34
6	Eva Rut Ómarsdóttir	0.04 s	Python 3	2025-03-11 20:16:24
7	Philipp	0.04 s	Python 3	2025-09-09 09:44:48
8	Gunnsteinn Þór Ólason	0.04 s	Python 3	2026-01-14 14:59:04
9	Birkir Ingi Jónsson	0.04 s	Python 3	2026-01-14 17:05:58
10	Einar Helgi Doruson	0.04 s	Python 3	2026-01-21 14:46:18

#	User	Runtime	Language	Date
1	Þorsteinn Sævar Kristjánsson	0.08 s	Ruby	2025-10-04 03:17:07

#	User	Runtime	Language	Date
1	Sverrir Hákon Marteinsson	0.00 s	Rust	2023-08-25 09:11:55
2	Theodór Leví Halldórsson	0.00 s	Rust	2025-09-30 12:57:37
3	Matthías Madsen Hauksson	0.00 s	Rust	2026-02-21 02:41:20

#	User	Length	Language	Date
1	Símon Páll Birgirsson	195	C	2026-01-14 15:24:16
2	Bergur Snorrason	322	C	2024-08-21 12:22:12
3	Óliver Máni	330	C	2019-08-20 22:04:53
4	Alexander Bjartur Guðbjartsson	344	C	2024-11-28 02:33:42
5	Kristján Ómar Eggertsson	413	C	2024-06-21 21:06:37
6	Alexandros Hadjipaschalis	505	C	2025-10-15 18:50:36

#	User	Length	Language	Date
1	Florian Cliquet	375	C++	2024-10-17 18:37:28
2	Aron Orri Fannarsson	382	C++	2022-09-30 18:01:20
3	Eva Sóllilja Einarsdóttir	390	C++	2024-04-14 18:23:33
4	Atli Fannar Franklín	471	C++	2019-03-26 22:56:34
5	Benedikt Vilji Magnússon	479	C++	2019-04-14 15:34:08
6	Gunnsteinn Þór Ólason	482	C++	2024-04-17 13:15:03
7	Jeremy Lim	484	C++	2024-07-26 18:28:55
8	Kristinn Hrafn Daníelsson	485	C++	2023-05-04 18:56:50
9	Eysteinn Daði Hjaltason	486	C++	2025-07-05 17:42:20
10	Yutong Wang	487	C++	2024-07-23 11:20:55

#	User	Length	Language	Date
1	Gudjon Bjarki	351	F#	2024-01-12 23:26:15

#	User	Length	Language	Date
1	Hidden user	1361	Go	2021-10-21 21:50:24

#	User	Length	Language	Date
1	Ólafur Steinar Ragnarsson	431	Java	2023-02-14 18:25:20
2	Einar Þór Ívarsson	473	Java	2020-02-18 15:25:53
3	Guðbjörg Viðja	532	Java	2023-11-17 17:27:15
4	Hidden user	590	Java	2019-03-23 19:36:32
5	Sigurbjörg Erla	627	Java	2023-11-17 14:42:43
6	Jakob Lars Kristmannsson	726	Java	2023-02-01 13:54:30
7	Guðrún Þöll Torfadóttir	1409	Java	2021-03-24 10:28:11

#	User	Length	Language	Date
1	Hidden user	424	JavaScript (Node.js)	2023-01-09 13:03:15
2	Róbert Kristian Freysson	742	JavaScript (Node.js)	2022-11-25 22:14:27

#	User	Length	Language	Date
1	Mateusz Kolacz	194	JavaScript (SpiderMonkey)	2024-01-05 12:56:51

#	User	Length	Language	Date
1	Hidden user	105	Julia	2025-10-03 21:51:38

#	User	Length	Language	Date
1	Arnar Bjarni Arnarson	1469	Prolog	2023-07-31 16:41:30

#	User	Length	Language	Date
1	Elvar Árni Bjarnason	268	Python 2	2019-03-23 18:53:49
2	Dawid BWC	321	Python 2	2024-01-26 19:08:15
3	Kristjan Orri	475	Python 2	2019-03-23 20:31:26

#	User	Length	Language	Date
1	Nicholas Russell Saerang	99	Python 3	2024-05-22 05:55:38
2	Gunnsteinn Þór Ólason	105	Python 3	2026-01-14 14:59:04
3	Philipp	108	Python 3	2025-09-09 09:44:48
4	Susanna Elín Trusty	133	Python 3	2026-01-26 16:50:16
5	Sverrir Hákon Marteinsson	139	Python 3	2023-08-09 02:21:56
6	Hrant Hovhannisyan	148	Python 3	2025-03-05 05:36:16
7	Bárður Sigurðsson	152	Python 3	2022-11-02 10:58:36
8	Johan Sannemo	152	Python 3	2026-01-23 09:07:49
9	Einar Helgi Doruson	158	Python 3	2026-01-21 14:49:02
10	Pokeheart (Pokeheart)	163	Python 3	2025-03-08 23:14:34

#	User	Length	Language	Date
1	Þorsteinn Sævar Kristjánsson	148	Ruby	2025-10-04 03:17:07

#	User	Length	Language	Date
1	Sverrir Hákon Marteinsson	425	Rust	2023-08-25 09:49:26
2	Matthías Madsen Hauksson	647	Rust	2026-02-21 02:41:20
3	Theodór Leví Halldórsson	748	Rust	2025-09-30 12:57:37

Solution running time distribution