Problem A
Decisions, Decisions — Problem Statistics

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Submissions	924
Accepted submissions	380
Submission ratio	41.13%
Authors	323
Full solves [?]	289
Full solve Ratio	89.47%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.08 s	Bash	2024-04-16 16:31:26

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.01 s	C	2019-11-25 12:58:38
2	Jack Rosenthal	0.02 s	C	2017-11-12 05:35:39
3	Ivan Petrov	0.03 s	C	2020-01-17 11:04:55

#	User	Runtime	Language	Date
1	Neo Ferrari	0.06 s	C#	2026-01-20 16:01:28
2	Allan	0.09 s	C#	2025-10-28 16:46:05
3	Hidden user	0.09 s	C#	2026-01-20 23:11:38

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.00 s	C++	2018-04-26 04:39:11
2	Brandon Zhang	0.01 s	C++	2023-12-02 11:59:19
3	Wen Li Looi	0.02 s	C++	2017-11-11 19:16:33
4	Dmitry Lyubshin	0.02 s	C++	2018-06-29 00:46:35
5	Noah Ó Donnaile	0.02 s	C++	2018-08-21 16:32:30
6	Yihong Zhang	0.02 s	C++	2018-09-15 05:04:56
7	Guanghao Ye	0.02 s	C++	2018-09-15 21:47:05
8	Sourav Sen Tonmoy	0.02 s	C++	2018-10-04 13:15:00
9	Rezwan Mahmud	0.02 s	C++	2018-10-04 13:17:07
10	鹿目圆	0.02 s	C++	2018-10-14 18:09:23

#	User	Runtime	Language	Date
1	Norbert Voelker	0.12 s	Go	2021-11-18 00:09:36

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.04 s	Haskell	2024-10-18 21:44:51
2	Matthew Craven	0.72 s	Haskell	2018-10-28 14:47:03

#	User	Runtime	Language	Date
1	Paul Boddington	0.09 s	Java	2020-07-26 18:44:18
2	Derek Thomson	0.09 s	Java	2022-01-26 04:18:59
3	Bjørn Dons	0.09 s	Java	2023-04-22 11:47:41
4	Crystal Sharpe	0.11 s	Java	2021-02-20 21:17:04
5	Stephen Atwood	0.13 s	Java	2019-08-19 08:50:59
6	Anh Mai Le Xuan	0.15 s	Java	2018-10-20 20:01:11
7	Doug Goodman	0.16 s	Java	2018-07-27 17:44:14
8	Sam Reinehr	0.18 s	Java	2017-11-13 19:37:34
9	Dante Bencivenga	0.18 s	Java	2017-11-16 03:34:28
10	Alice Ryhl	0.18 s	Java	2019-11-13 11:11:11

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.07 s	JavaScript (SpiderMonkey)	2023-06-11 12:23:12

#	User	Runtime	Language	Date
1	Jacob Huebner	0.22 s	Kotlin	2021-06-16 03:16:08
2	Danny Mittal	0.47 s	Kotlin	2022-09-14 04:05:54
3	Zhengqing Ye	0.71 s	Kotlin	2018-10-21 00:11:24

#	User	Runtime	Language	Date
1	Can Liu	0.06 s	Python 2	2018-10-20 22:21:37
2	Andreas Björklund	0.06 s	Python 2	2020-10-20 06:09:56
3	Godmar Back	0.09 s	Python 2	2018-10-21 23:58:44
4	Jesper Öqvist	0.09 s	Python 2	2018-11-01 22:40:18
5	Måns Magnusson	0.11 s	Python 2	2018-09-22 15:06:29
6	Maj Stenmark	0.11 s	Python 2	2018-09-27 16:35:29
7	Olav Røthe Bakken	0.12 s	Python 2	2019-08-29 11:38:00
8	Daniel Moyer	0.16 s	Python 2	2018-10-22 23:58:49
9	Lars Åström	0.17 s	Python 2	2018-09-22 13:43:42
10	Victor Zheng	0.23 s	Python 2	2017-11-12 04:57:04

#	User	Runtime	Language	Date
1	Siyong Liu	0.10 s	Python 3	2023-04-14 23:46:59
2	Daniel Bogorad	0.10 s	Python 3	2025-07-17 03:45:32
3	Jed Yang	0.11 s	Python 3	2025-01-03 14:35:05
4	Hrant Hovhannisyan	0.11 s	Python 3	2026-02-03 05:09:49
5	Jason Oliphant	0.12 s	Python 3	2026-03-13 02:20:51
6	Casper Rysgaard	0.13 s	Python 3	2021-04-20 22:55:12
7	Teikn Smith	0.13 s	Python 3	2021-10-10 04:51:39
8	Oskar Haarklou Veileborg	0.14 s	Python 3	2021-05-03 14:46:27
9	Qasim Khawaja	0.14 s	Python 3	2022-03-02 22:59:32
10	Blake Herrera	0.14 s	Python 3	2022-10-08 18:58:56

#	User	Runtime	Language	Date
1	Miorel Palii	0.59 s	Ruby	2022-03-30 12:12:38
2	Thomas Feld	0.66 s	Ruby	2023-05-22 10:18:54

#	User	Runtime	Language	Date
1	Niklas Sandén	0.01 s	Rust	2023-02-15 14:39:00
2	Frank Endriss	0.01 s	Rust	2025-01-04 19:51:29

#	User	Length	Language	Date
1	Chenzhang Hu	1568	Bash	2024-04-16 16:31:26

#	User	Length	Language	Date
1	Jack Rosenthal	1124	C	2017-11-12 05:35:39
2	Ivan Petrov	1192	C	2020-01-17 11:04:55
3	Bergur Snorrason	2019	C	2019-11-25 12:58:38

#	User	Length	Language	Date
1	Allan	1437	C#	2025-10-28 16:46:05
2	Hidden user	1483	C#	2026-01-20 23:11:38
3	Neo Ferrari	3009	C#	2026-01-20 16:01:28

#	User	Length	Language	Date
1	Zac Friggstad	424	C++	2020-04-04 23:30:10
2	Minh Huy Nguyễn	424	C++	2020-07-18 19:15:36
3	Aditya Durvasula	459	C++	2018-01-10 03:01:31
4	Alex Zhao	492	C++	2018-10-20 19:41:52
5	Tim Brouwer	515	C++	2019-10-24 20:54:40
6	Min-Zheng Shieh	517	C++	2020-11-25 16:19:42
7	Godmar Back	523	C++	2019-10-17 17:07:59
8	Josip Smolcic	530	C++	2018-10-27 04:18:47
9	Matthew Tran	543	C++	2022-01-11 21:29:19
10	人外沙耶	588	C++	2023-12-20 07:08:14

#	User	Length	Language	Date
1	Norbert Voelker	1094	Go	2021-11-18 00:09:36

#	User	Length	Language	Date
1	Matthew Craven	795	Haskell	2018-10-28 14:47:03
2	Steinar Simonnes	1116	Haskell	2024-10-18 21:47:04

#	User	Length	Language	Date
1	Matt Peter	750	Java	2019-02-24 02:45:00
2	Markus Bao	762	Java	2022-10-05 13:34:32
3	Crystal Sharpe	992	Java	2021-02-20 21:17:04
4	Sean Widjaja	1046	Java	2022-01-19 07:25:32
5	Paul Boddington	1047	Java	2020-07-26 18:44:18
6	Alice Ryhl	1058	Java	2019-11-13 11:11:11
7	Mohammad Naufal Hazim Bin Saharudin	1082	Java	2025-06-04 11:27:16
8	Stephen Atwood	1162	Java	2019-08-19 08:50:59
9	Nathaniel Lahn	1207	Java	2018-10-20 20:43:51
10	Shawn Zhong	1209	Java	2018-10-20 23:32:42

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	367	JavaScript (SpiderMonkey)	2023-06-11 12:23:12

#	User	Length	Language	Date
1	Danny Mittal	545	Kotlin	2022-09-14 04:05:54
2	Zhengqing Ye	954	Kotlin	2018-10-21 00:11:24
3	Jacob Huebner	1384	Kotlin	2021-06-16 03:16:08

#	User	Length	Language	Date
1	Andreas Björklund	235	Python 2	2020-10-20 06:09:56
2	Thomas Feld	243	Python 2	2019-12-19 14:24:23
3	Godmar Back	253	Python 2	2018-10-21 17:28:00
4	Måns Magnusson	256	Python 2	2018-09-22 15:06:29
5	Maj Stenmark	256	Python 2	2018-09-27 16:35:29
6	Jesper Öqvist	274	Python 2	2018-11-01 22:40:18
7	Daniel Moyer	306	Python 2	2018-10-22 23:58:49
8	Lars Åström	440	Python 2	2018-09-22 13:43:42
9	Olav Røthe Bakken	469	Python 2	2019-08-29 11:38:00
10	Victor Zheng	526	Python 2	2017-11-12 04:57:04

#	User	Length	Language	Date
1	Peter Stauder	187	Python 3	2022-10-29 21:40:14
2	Atli Fannar Franklín	232	Python 3	2023-04-15 15:47:38
3	Jason Cannon	251	Python 3	2019-12-17 19:46:11
4	Oskar Haarklou Veileborg	254	Python 3	2021-05-03 14:46:27
5	Godmar Back	255	Python 3	2018-10-21 18:07:52
6	Chung Yan Chow	257	Python 3	2026-03-14 02:42:17
7	Caleb Dastrup	259	Python 3	2024-10-11 22:53:09
8	Hrant Hovhannisyan	300	Python 3	2026-02-03 05:09:49
9	Drake Cullen	323	Python 3	2023-03-08 20:23:42
10	Michael Fatemi	342	Python 3	2022-09-14 00:40:50

#	User	Length	Language	Date
1	Thomas Feld	126	Ruby	2023-05-22 10:40:12
2	Miorel Palii	318	Ruby	2022-03-30 12:12:38

#	User	Length	Language	Date
1	Frank Endriss	8746	Rust	2025-01-04 19:51:29
2	Niklas Sandén	26286	Rust	2023-02-15 14:39:00

Solution running time distribution