Problem A
Decisions, Decisions — Problem Statistics

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Submissions	890
Accepted submissions	365
Submission ratio	41.01%
Authors	316
Full solves [?]	281
Full solve Ratio	88.92%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.08 s	Bash	2024-04-16 14:31:26

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.01 s	C	2019-11-25 11:58:38
2	Jack Rosenthal	0.02 s	C	2017-11-12 04:35:39
3	Ivan Petrov	0.03 s	C	2020-01-17 10:04:55

#	User	Runtime	Language	Date
1	Allan	0.09 s	C#	2025-10-28 15:46:05

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.00 s	C++	2018-04-26 02:39:11
2	Brandon Zhang	0.01 s	C++	2023-12-02 10:59:19
3	Wen Li Looi	0.02 s	C++	2017-11-11 18:16:33
4	Dmitry Lyubshin	0.02 s	C++	2018-06-28 22:46:35
5	Noah Ó Donnaile	0.02 s	C++	2018-08-21 14:32:30
6	Yihong Zhang	0.02 s	C++	2018-09-15 03:04:56
7	Guanghao Ye	0.02 s	C++	2018-09-15 19:47:05
8	Sourav Sen Tonmoy	0.02 s	C++	2018-10-04 11:15:00
9	Rezwan Mahmud	0.02 s	C++	2018-10-04 11:17:07
10	鹿目圆	0.02 s	C++	2018-10-14 16:09:23

#	User	Runtime	Language	Date
1	Norbert Voelker	0.12 s	Go	2021-11-17 23:09:36

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.04 s	Haskell	2024-10-18 19:44:51
2	Matthew Craven	0.72 s	Haskell	2018-10-28 13:47:03

#	User	Runtime	Language	Date
1	Paul Boddington	0.09 s	Java	2020-07-26 16:44:18
2	Derek Thomson	0.09 s	Java	2022-01-26 03:18:59
3	Bjørn Dons	0.09 s	Java	2023-04-22 09:47:41
4	Crystal Sharpe	0.11 s	Java	2021-02-20 20:17:04
5	Stephen Atwood	0.13 s	Java	2019-08-19 06:50:59
6	Anh Mai Le Xuan	0.15 s	Java	2018-10-20 18:01:11
7	Doug Goodman	0.16 s	Java	2018-07-27 15:44:14
8	Sam Reinehr	0.18 s	Java	2017-11-13 18:37:34
9	Dante Bencivenga	0.18 s	Java	2017-11-16 02:34:28
10	Alice Ryhl	0.18 s	Java	2019-11-13 10:11:11

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	0.07 s	JavaScript (SpiderMonkey)	2023-06-11 10:23:12

#	User	Runtime	Language	Date
1	Jacob Huebner	0.22 s	Kotlin	2021-06-16 01:16:08
2	Danny Mittal	0.47 s	Kotlin	2022-09-14 02:05:54
3	Zhengqing Ye	0.71 s	Kotlin	2018-10-20 22:11:24

#	User	Runtime	Language	Date
1	Can Liu	0.06 s	Python 2	2018-10-20 20:21:37
2	Andreas Björklund	0.06 s	Python 2	2020-10-20 04:09:56
3	Godmar Back	0.09 s	Python 2	2018-10-21 21:58:44
4	Jesper Öqvist	0.09 s	Python 2	2018-11-01 21:40:18
5	Måns Magnusson	0.11 s	Python 2	2018-09-22 13:06:29
6	Maj Stenmark	0.11 s	Python 2	2018-09-27 14:35:29
7	Olav Røthe Bakken	0.12 s	Python 2	2019-08-29 09:38:00
8	Daniel Moyer	0.16 s	Python 2	2018-10-22 21:58:49
9	Lars Åström	0.17 s	Python 2	2018-09-22 11:43:42
10	Victor Zheng	0.23 s	Python 2	2017-11-12 03:57:04

#	User	Runtime	Language	Date
1	Siyong Liu	0.10 s	Python 3	2023-04-14 21:46:59
2	Daniel Bogorad	0.10 s	Python 3	2025-07-17 01:45:32
3	Jed Yang	0.11 s	Python 3	2025-01-03 13:35:05
4	Casper Rysgaard	0.13 s	Python 3	2021-04-20 20:55:12
5	Teikn Smith	0.13 s	Python 3	2021-10-10 02:51:39
6	Oskar Haarklou Veileborg	0.14 s	Python 3	2021-05-03 12:46:27
7	Qasim Khawaja	0.14 s	Python 3	2022-03-02 21:59:32
8	Blake Herrera	0.14 s	Python 3	2022-10-08 16:58:56
9	Drake Cullen	0.14 s	Python 3	2023-03-08 19:23:42
10	Atli Fannar Franklín	0.14 s	Python 3	2023-04-15 13:47:38

#	User	Runtime	Language	Date
1	Miorel Palii	0.59 s	Ruby	2022-03-30 10:12:38
2	Thomas Feld	0.66 s	Ruby	2023-05-22 08:18:54

#	User	Runtime	Language	Date
1	Niklas Sandén	0.01 s	Rust	2023-02-15 13:39:00
2	Frank Endriss	0.01 s	Rust	2025-01-04 18:51:29

#	User	Length	Language	Date
1	Chenzhang Hu	1568	Bash	2024-04-16 14:31:26

#	User	Length	Language	Date
1	Jack Rosenthal	1124	C	2017-11-12 04:35:39
2	Ivan Petrov	1192	C	2020-01-17 10:04:55
3	Bergur Snorrason	2019	C	2019-11-25 11:58:38

#	User	Length	Language	Date
1	Allan	1437	C#	2025-10-28 15:46:05

#	User	Length	Language	Date
1	Zac Friggstad	424	C++	2020-04-04 21:30:10
2	Minh Huy Nguyễn	424	C++	2020-07-18 17:15:36
3	Aditya Durvasula	459	C++	2018-01-10 02:01:31
4	Alex Zhao	492	C++	2018-10-20 17:41:52
5	Tim Brouwer	515	C++	2019-10-24 18:54:40
6	Min-Zheng Shieh	517	C++	2020-11-25 15:19:42
7	Godmar Back	523	C++	2019-10-17 15:07:59
8	Josip Smolcic	530	C++	2018-10-27 02:18:47
9	Matthew Tran	543	C++	2022-01-11 20:29:19
10	人外沙耶	588	C++	2023-12-20 06:08:14

#	User	Length	Language	Date
1	Norbert Voelker	1094	Go	2021-11-17 23:09:36

#	User	Length	Language	Date
1	Matthew Craven	795	Haskell	2018-10-28 13:47:03
2	Steinar Simonnes	1116	Haskell	2024-10-18 19:47:04

#	User	Length	Language	Date
1	Matt Peter	750	Java	2019-02-24 01:45:00
2	Markus Bao	762	Java	2022-10-05 11:34:32
3	Crystal Sharpe	992	Java	2021-02-20 20:17:04
4	Sean Widjaja	1046	Java	2022-01-19 06:25:32
5	Paul Boddington	1047	Java	2020-07-26 16:44:18
6	Alice Ryhl	1058	Java	2019-11-13 10:11:11
7	Mohammad Naufal Hazim Bin Saharudin	1082	Java	2025-06-04 09:27:16
8	Stephen Atwood	1162	Java	2019-08-19 06:50:59
9	Nathaniel Lahn	1207	Java	2018-10-20 18:43:51
10	Shawn Zhong	1209	Java	2018-10-20 21:32:42

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	367	JavaScript (SpiderMonkey)	2023-06-11 10:23:12

#	User	Length	Language	Date
1	Danny Mittal	545	Kotlin	2022-09-14 02:05:54
2	Zhengqing Ye	954	Kotlin	2018-10-20 22:11:24
3	Jacob Huebner	1384	Kotlin	2021-06-16 01:16:08

#	User	Length	Language	Date
1	Andreas Björklund	235	Python 2	2020-10-20 04:09:56
2	Thomas Feld	243	Python 2	2019-12-19 13:24:23
3	Godmar Back	253	Python 2	2018-10-21 15:28:00
4	Måns Magnusson	256	Python 2	2018-09-22 13:06:29
5	Maj Stenmark	256	Python 2	2018-09-27 14:35:29
6	Jesper Öqvist	274	Python 2	2018-11-01 21:40:18
7	Daniel Moyer	306	Python 2	2018-10-22 21:58:49
8	Lars Åström	440	Python 2	2018-09-22 11:43:42
9	Olav Røthe Bakken	469	Python 2	2019-08-29 09:38:00
10	Victor Zheng	526	Python 2	2017-11-12 03:57:04

#	User	Length	Language	Date
1	Peter Stauder	187	Python 3	2022-10-29 19:40:14
2	Atli Fannar Franklín	232	Python 3	2023-04-15 13:47:38
3	Jason Cannon	251	Python 3	2019-12-17 18:46:11
4	Oskar Haarklou Veileborg	254	Python 3	2021-05-03 12:46:27
5	Godmar Back	255	Python 3	2018-10-21 16:07:52
6	Caleb Dastrup	259	Python 3	2024-10-11 20:53:09
7	Drake Cullen	323	Python 3	2023-03-08 19:23:42
8	Michael Fatemi	342	Python 3	2022-09-13 22:40:50
9	Hidden user	362	Python 3	2023-09-15 19:20:31
10	Siyong Liu	381	Python 3	2023-04-14 21:46:59

#	User	Length	Language	Date
1	Thomas Feld	126	Ruby	2023-05-22 08:40:12
2	Miorel Palii	318	Ruby	2022-03-30 10:12:38

#	User	Length	Language	Date
1	Frank Endriss	8746	Rust	2025-01-04 18:51:29
2	Niklas Sandén	26286	Rust	2023-02-15 13:39:00

Solution running time distribution