Problem I
Once in a Blue Moon — Problem Statistics

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Submissions	689
Accepted submissions	669
Submission ratio	97.10%
Authors	128
Full solves [?]	82
Full solve Ratio	64.06%

#	User	Score	Language	Date
1	Bergur Snorrason	100	C	2020-11-17 11:02:54

#	User	Score	Language	Date
1	Loke Gustafsson	100	C#	2019-01-19 00:35:20
2	Markus Swift	62	C#	2019-01-18 13:05:39
3	Diego Rico Reyes	0	C#	2023-09-01 05:29:19

#	User	Score	Language	Date
1	Nils Olsson	100	Java	2021-02-02 18:45:59
2	Rasmus Winzell	62	Java	2019-02-02 17:35:29
3	Jinita Shrestha	0	Java	2025-02-21 06:23:57

#	User	Score	Language	Date
1	Bjørn Chr. Soltvedt	0	JavaScript (SpiderMonkey)	2021-01-01 14:48:37

#	User	Score	Language	Date
1	Björn Martinsson	100	Python 2	2019-01-26 14:22:11
2	Frederik Højholt	100	Python 2	2019-01-30 20:36:44
3	Odin Hufnagl	100	Python 2	2021-01-10 14:48:36
4	Simon Lindholm	75	Python 2	2019-01-17 21:33:14
5	Jonatan Nilsson	58	Python 2	2019-01-18 22:37:38

#	User	Score	Language	Date
1	Simon Lindholm	100	Python 3	2019-01-17 21:31:33
2	Julia Persson	100	Python 3	2019-01-18 19:49:02
3	Ludvig Sandh	100	Python 3	2020-12-29 16:11:49
4	Oskar Haarklou Veileborg	100	Python 3	2021-11-11 16:11:53
5	Gary Gurlaskie	100	Python 3	2022-06-04 21:15:12
6	Christoffer Sommerlund	100	Python 3	2022-10-22 19:24:44
7	Tony Kwan	100	Python 3	2023-01-13 21:06:44
8	Erik Adebahr	75	Python 3	2024-12-28 18:11:00
9	Jonathan L	43	Python 3	2019-01-18 11:21:45
10	Hugo Berg	28	Python 3	2019-01-18 13:58:23

#	User	Score	Language	Date
1	Daniel Anker Hermansen	100	Rust	2023-06-08 14:53:51
2	Joris Kerkhoff	100	Rust	2024-09-21 12:33:55
3	Bas Dirks	0	Rust	2022-01-16 21:15:44

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.03 s	C	2020-11-17 11:02:54

#	User	Runtime	Language	Date
1	Loke Gustafsson	0.21 s	C#	2019-01-19 00:35:20

#	User	Runtime	Language	Date
1	Erik Adebahr	0.01 s	C++	2025-01-01 20:02:15
2	Benjamin Qi	0.02 s	C++	2019-01-23 19:22:19
3	Timofey Fedoseev	0.03 s	C++	2019-01-29 19:39:36
4	Jelmer Hinssen	0.03 s	C++	2021-11-06 09:39:54
5	Vide Wallström	0.03 s	C++	2025-01-01 03:39:59
6	Tymek Wiśniewski	0.04 s	C++	2019-01-27 13:21:36
7	Hidden user	0.04 s	C++	2021-04-03 17:49:48
8	Anastasiia Saranchina	0.04 s	C++	2025-01-25 10:55:52
9	Fausta Anugrah Dianparama	0.05 s	C++	2019-01-29 16:28:38
10	Hidden user	0.06 s	C++	2022-08-16 19:11:14

#	User	Runtime	Language	Date
1	Nils Olsson	0.95 s	Java	2021-02-02 18:45:59

#	User	Runtime	Language	Date
1	Frederik Højholt	0.13 s	Python 2	2019-01-30 20:36:44
2	Björn Martinsson	0.72 s	Python 2	2019-01-26 14:22:11
3	Odin Hufnagl	0.92 s	Python 2	2021-01-10 14:48:36

#	User	Runtime	Language	Date
1	Gary Gurlaskie	0.33 s	Python 3	2022-06-04 22:05:00
2	Christoffer Sommerlund	0.33 s	Python 3	2022-10-22 19:24:44
3	Oskar Haarklou Veileborg	0.48 s	Python 3	2021-11-11 16:11:53
4	Tony Kwan	0.64 s	Python 3	2023-01-13 21:06:44
5	Ludvig Sandh	1.08 s	Python 3	2020-12-29 16:11:49
6	Julia Persson	1.25 s	Python 3	2019-01-18 19:49:02
7	Simon Lindholm	1.30 s	Python 3	2019-01-17 21:31:33

#	User	Runtime	Language	Date
1	Joris Kerkhoff	0.14 s	Rust	2024-09-21 12:33:55
2	Daniel Anker Hermansen	0.29 s	Rust	2023-06-08 14:53:51

#	User	Length	Language	Date
1	Bergur Snorrason	2835	C	2020-11-17 11:02:54

#	User	Length	Language	Date
1	Loke Gustafsson	4253	C#	2019-01-19 00:35:20

#	User	Length	Language	Date
1	Alexander Morozov	836	C++	2019-01-23 11:45:10
2	Roope Salmi	842	C++	2019-01-27 12:16:20
3	Hidden user	869	C++	2022-08-16 19:11:14
4	人外沙耶	869	C++	2022-08-16 21:06:34
5	Dmitry Lyubshin	939	C++	2023-06-20 19:29:31
6	Jeroen Krijgsman	940	C++	2024-09-28 15:13:27
7	Alex Dai	1013	C++	2021-03-30 10:09:33
8	Atli Fannar Franklín	1080	C++	2023-05-31 19:25:40
9	Seunghyun Joe	1084	C++	2019-01-23 12:18:08
10	Antti Laaksonen	1088	C++	2019-01-25 18:56:57

#	User	Length	Language	Date
1	Nils Olsson	2140	Java	2021-02-02 18:45:59

#	User	Length	Language	Date
1	Frederik Højholt	1092	Python 2	2019-01-30 20:45:21
2	Björn Martinsson	1707	Python 2	2019-01-26 14:22:11
3	Odin Hufnagl	1865	Python 2	2021-01-10 14:48:36

#	User	Length	Language	Date
1	Oskar Haarklou Veileborg	587	Python 3	2021-11-11 16:11:53
2	Christoffer Sommerlund	936	Python 3	2022-10-22 19:24:44
3	Julia Persson	1206	Python 3	2019-01-18 19:49:02
4	Gary Gurlaskie	1335	Python 3	2022-06-04 21:46:36
5	Tony Kwan	1447	Python 3	2023-01-13 21:06:44
6	Simon Lindholm	1837	Python 3	2019-01-17 21:31:33
7	Ludvig Sandh	2032	Python 3	2020-12-29 16:11:49

#	User	Length	Language	Date
1	Joris Kerkhoff	3097	Rust	2024-09-21 12:33:55
2	Daniel Anker Hermansen	30830	Rust	2023-06-08 14:53:51

Solution running time distribution