Problem A
Blaðra — Problem Statistics

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Submissions	799
Accepted submissions	412
Submission ratio	51.56%
Authors	365
Full solves [?]	346
Full solve Ratio	94.79%

#	User	Score	Language	Date
1	Óliver Máni	100	C	2020-03-21 19:45:07
2	Bergur Snorrason	100	C	2020-03-24 11:04:58
3	Dagur Benjamínsson	100	C	2021-02-18 14:30:42
4	Kjartan B. Kristjánsson	100	C	2021-03-08 10:14:27
5	Kristján Ómar Eggertsson	100	C	2024-06-21 20:13:16
6	Álfgrímur Davíð	100	C	2025-03-23 14:08:14
7	Alexandros Hadjipaschalis	100	C	2025-09-21 20:12:25
8	Jón Oddur Högnason	100	C	2025-11-26 14:28:07
9	Símon Páll Birgirsson	100	C	2026-01-26 14:55:17

#	User	Score	Language	Date
1	Rottan úr turtles	100	C#	2020-03-21 12:08:21
2	Axel Snær	100	C#	2021-04-10 18:35:24
3	Róbert Arnar Bjarnason	100	C#	2022-03-18 15:04:53

#	User	Score	Language	Date
1	Kjartan Óli Ágústsson	100	Common Lisp	2021-11-17 14:31:14

#	User	Score	Language	Date
1	Gudjon Bjarki	100	F#	2024-01-10 18:39:08

#	User	Score	Language	Date
1	Hidden user	100	Go	2021-05-18 16:06:34

#	User	Score	Language	Date
1	Gunnar Dofri Viðarsson	100	Java	2020-03-21 12:34:18
2	Árni Bent Þráinsson	100	Java	2020-03-21 14:13:51
3	Benni Efnafræði	100	Java	2020-03-21 14:39:27
4	Einar Þór Ívarsson	100	Java	2020-09-03 18:41:21
5	Sigurbjörg Erla	100	Java	2023-11-17 12:16:27
6	Guðbjörg Viðja	100	Java	2023-11-17 15:46:45
7	Helgi Mednis Guðmundsson	100	Java	2023-12-07 22:44:25
8	Hans-Christian Kjeldsen	100	Java	2024-04-17 11:49:43
9	Oliver Leifsson Kaldal	100	Java	2026-03-11 15:54:19

#	User	Score	Language	Date
1	Róbert Kristian Freysson	100	JavaScript (Node.js)	2022-11-24 21:46:42
2	Hidden user	100	JavaScript (Node.js)	2023-01-09 12:42:51

#	User	Score	Language	Date
1	Hidden user	100	JavaScript (SpiderMonkey)	2023-02-20 11:49:51
2	Mateusz Kolacz	100	JavaScript (SpiderMonkey)	2024-01-05 09:54:13

#	User	Score	Language	Date
1	Elvar Árni Bjarnason	100	Python 2	2020-03-21 18:19:55
2	Samúel Arnar Hafsteinsson	100	Python 2	2020-03-21 21:06:04

#	User	Score	Language	Date
1	Þorsteinn Sævar Kristjánsson	100	Ruby	2025-09-29 12:05:26

#	User	Score	Language	Date
1	Dagur Benjamínsson	100	Rust	2020-08-24 02:32:02
2	Brynjar Haraldsson	100	Rust	2021-10-16 02:06:19
3	Þórhallur Tryggvason	100	Rust	2022-05-22 02:24:39
4	Sverrir Hákon Marteinsson	100	Rust	2023-08-20 04:46:02
5	Theodór Leví Halldórsson	100	Rust	2025-09-30 16:44:23

#	User	Score	Language	Date
1	Gunnsteinn Þór Ólason	100	Uiua	2026-03-16 00:23:58
2	Þorsteinn Kristjánsson	100	Uiua	17:50:04

#	User	Runtime	Language	Date
1	Óliver Máni	0.00 s	C	2020-03-21 19:45:07
2	Bergur Snorrason	0.00 s	C	2020-03-24 11:04:58
3	Dagur Benjamínsson	0.00 s	C	2021-02-18 14:30:42
4	Kjartan B. Kristjánsson	0.00 s	C	2021-03-08 10:14:27
5	Kristján Ómar Eggertsson	0.00 s	C	2024-06-21 20:13:16
6	Álfgrímur Davíð	0.00 s	C	2025-03-23 14:08:14
7	Alexandros Hadjipaschalis	0.00 s	C	2025-09-21 20:12:25
8	Jón Oddur Högnason	0.00 s	C	2025-11-26 14:28:07
9	Símon Páll Birgirsson	0.00 s	C	2026-01-26 14:55:17

#	User	Runtime	Language	Date
1	Rottan úr turtles	0.04 s	C#	2020-03-21 12:08:21
2	Axel Snær	0.04 s	C#	2021-04-10 18:35:24
3	Róbert Arnar Bjarnason	0.04 s	C#	2022-03-18 15:04:53

#	User	Runtime	Language	Date
1	Kjartan Óli Ágústsson	0.01 s	Common Lisp	2021-11-17 14:31:14

#	User	Runtime	Language	Date
1	Gudjon Bjarki	0.04 s	F#	2024-01-10 18:39:08

#	User	Runtime	Language	Date
1	Hidden user	0.00 s	Go	2021-05-18 16:06:34

#	User	Runtime	Language	Date
1	Helgi Mednis Guðmundsson	0.09 s	Java	2023-12-07 22:44:25
2	Oliver Leifsson Kaldal	0.09 s	Java	2026-03-11 15:54:19
3	Gunnar Dofri Viðarsson	0.10 s	Java	2020-03-21 12:34:18
4	Árni Bent Þráinsson	0.10 s	Java	2020-03-21 14:13:51
5	Benni Efnafræði	0.10 s	Java	2020-03-21 14:39:27
6	Einar Þór Ívarsson	0.10 s	Java	2020-09-03 18:41:21
7	Sigurbjörg Erla	0.10 s	Java	2023-11-17 12:16:27
8	Guðbjörg Viðja	0.10 s	Java	2023-11-17 15:46:45
9	Hans-Christian Kjeldsen	0.10 s	Java	2024-04-17 11:49:43

#	User	Runtime	Language	Date
1	Róbert Kristian Freysson	0.05 s	JavaScript (Node.js)	2022-11-24 21:46:42
2	Hidden user	0.05 s	JavaScript (Node.js)	2023-01-09 12:42:51

#	User	Runtime	Language	Date
1	Hidden user	0.02 s	JavaScript (SpiderMonkey)	2023-02-20 11:49:51
2	Mateusz Kolacz	0.02 s	JavaScript (SpiderMonkey)	2024-01-05 09:54:13

#	User	Runtime	Language	Date
1	Elvar Árni Bjarnason	0.03 s	Python 2	2020-03-21 18:19:55
2	Samúel Arnar Hafsteinsson	0.03 s	Python 2	2020-03-21 21:06:04

#	User	Runtime	Language	Date
1	Daði Guð	0.04 s	Python 3	2024-09-14 23:36:29
2	isak smari Svavarsson	0.04 s	Python 3	2024-10-01 13:51:21
3	Manuel Gallego Prieto	0.04 s	Python 3	2024-12-19 22:05:37
4	Aron Elvar Zoega Jónsson	0.04 s	Python 3	2025-01-03 16:56:50
5	Petur Alex Guddjonsson	0.04 s	Python 3	2025-01-11 22:59:37
6	Lukas Grigaliunas	0.04 s	Python 3	2025-01-14 12:48:24
7	Ingthor Logi	0.04 s	Python 3	2025-01-14 12:50:00
8	Viktor Franz Bjarkason	0.04 s	Python 3	2025-01-16 11:38:12
9	Stefán ingi Kristinsson	0.04 s	Python 3	2025-01-16 11:52:53
10	Vikingur Thorvaldsson	0.04 s	Python 3	2025-01-16 12:01:09

#	User	Runtime	Language	Date
1	Þorsteinn Sævar Kristjánsson	0.07 s	Ruby	2025-09-29 12:05:26

#	User	Runtime	Language	Date
1	Dagur Benjamínsson	0.00 s	Rust	2020-08-24 02:32:02
2	Brynjar Haraldsson	0.00 s	Rust	2021-10-16 02:06:19
3	Þórhallur Tryggvason	0.00 s	Rust	2022-05-22 02:24:39
4	Sverrir Hákon Marteinsson	0.00 s	Rust	2023-08-20 04:46:02
5	Theodór Leví Halldórsson	0.00 s	Rust	2025-09-30 16:44:23

#	User	Runtime	Language	Date
1	Gunnsteinn Þór Ólason	0.03 s	Uiua	2026-03-16 00:23:58
2	Þorsteinn Kristjánsson	0.03 s	Uiua	17:50:04

#	User	Length	Language	Date
1	Símon Páll Birgirsson	95	C	2026-01-26 14:57:54
2	Kristján Ómar Eggertsson	148	C	2024-06-21 20:56:16
3	Óliver Máni	149	C	2020-03-21 19:45:07
4	Álfgrímur Davíð	150	C	2025-03-23 14:08:14
5	Alexandros Hadjipaschalis	171	C	2025-09-21 20:12:25
6	Jón Oddur Högnason	192	C	2025-11-26 14:28:07
7	Kjartan B. Kristjánsson	196	C	2021-03-08 10:14:27
8	Dagur Benjamínsson	213	C	2021-02-18 14:30:42
9	Bergur Snorrason	559	C	2020-03-24 11:04:58

#	User	Length	Language	Date
1	Axel Snær	392	C#	2021-04-20 21:04:39
2	Róbert Arnar Bjarnason	577	C#	2022-03-18 15:04:53
3	Rottan úr turtles	642	C#	2020-03-21 12:08:21

#	User	Length	Language	Date
1	Róbert Kristian Freysson	87	C++	2025-03-23 17:40:04
2	Alexander Bjartur Guðbjartsson	119	C++	2025-05-10 15:35:14
3	Daníel Örn Gíslason	132	C++	2021-01-12 16:53:05
4	Benedikt Aron Sigurþórsson	144	C++	2020-03-24 16:24:03
5	Yutong Wang	151	C++	2024-04-20 02:51:59
6	Hidden user	156	C++	2020-05-20 22:57:14
7	Pétur Óli Ágústsson	156	C++	2025-03-25 14:27:13
8	Jeremy Lim	157	C++	2024-07-26 18:23:26
9	Gunnsteinn Þór Ólason	166	C++	2024-03-28 10:06:37
10	Atli Fannar Franklín	169	C++	2021-04-25 18:02:35

#	User	Length	Language	Date
1	Kjartan Óli Ágústsson	479	Common Lisp	2021-11-17 14:31:14

#	User	Length	Language	Date
1	Gudjon Bjarki	162	F#	2024-01-10 18:39:08

#	User	Length	Language	Date
1	Hidden user	632	Go	2021-05-18 16:06:34

#	User	Length	Language	Date
1	Sigurbjörg Erla	307	Java	2023-11-17 12:16:27
2	Oliver Leifsson Kaldal	312	Java	2026-03-11 15:54:19
3	Guðbjörg Viðja	317	Java	2023-11-17 15:46:45
4	Hans-Christian Kjeldsen	358	Java	2024-04-17 11:49:43
5	Einar Þór Ívarsson	372	Java	2020-09-03 18:41:21
6	Helgi Mednis Guðmundsson	385	Java	2023-12-07 22:44:25
7	Gunnar Dofri Viðarsson	427	Java	2020-03-21 12:34:18
8	Benni Efnafræði	799	Java	2020-03-21 14:39:27
9	Árni Bent Þráinsson	812	Java	2020-03-21 15:17:43

#	User	Length	Language	Date
1	Hidden user	236	JavaScript (Node.js)	2023-01-09 12:42:51
2	Róbert Kristian Freysson	346	JavaScript (Node.js)	2022-11-24 21:46:42

#	User	Length	Language	Date
1	Hidden user	71	JavaScript (SpiderMonkey)	2023-02-20 11:49:51
2	Mateusz Kolacz	73	JavaScript (SpiderMonkey)	2024-01-05 09:54:13

#	User	Length	Language	Date
1	Samúel Arnar Hafsteinsson	89	Python 2	2020-03-21 21:06:04
2	Elvar Árni Bjarnason	95	Python 2	2020-03-21 18:19:55

#	User	Length	Language	Date
1	Harry Zhang	49	Python 3	2024-04-17 00:39:42
2	Pétur Óli Ágústsson	49	Python 3	2024-05-11 13:26:25
3	Sverrir Hákon Marteinsson	50	Python 3	2023-08-02 11:27:03
4	Ísar Máni Gíslason	52	Python 3	2024-01-10 15:57:15
5	K refotsir M iná R nosstrebor	53	Python 3	2021-01-07 17:25:09
6	Davíð	53	Python 3	2023-01-05 17:42:10
7	Nicholas Russell Saerang	54	Python 3	2024-04-15 20:15:21
8	Serik Ólafur Ásgeirsson	55	Python 3	2021-01-11 16:55:10
9	Hjörtur Klemensson	55	Python 3	2023-02-21 16:43:22
10	Þórhallur E	55	Python 3	2024-01-18 15:19:52

#	User	Length	Language	Date
1	Þorsteinn Sævar Kristjánsson	67	Ruby	2025-09-29 12:05:26

#	User	Length	Language	Date
1	Brynjar Haraldsson	375	Rust	2021-10-16 02:06:19
2	Theodór Leví Halldórsson	409	Rust	2025-09-30 16:44:23
3	Þórhallur Tryggvason	412	Rust	2022-05-22 02:24:39
4	Sverrir Hákon Marteinsson	428	Rust	2023-08-20 04:46:02
5	Dagur Benjamínsson	512	Rust	2020-08-24 02:32:02

#	User	Length	Language	Date
1	Gunnsteinn Þór Ólason	63	Uiua	2026-03-16 00:23:58
2	Þorsteinn Kristjánsson	73	Uiua	17:50:04

Solution running time distribution