Problem A
Alex and Barb

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Problem statistics

Submissions	2672
Accepted submissions	897
Submission ratio	33.57%
Authors	1006
Accepted authors	775
Author ratio	77.04%

#	User	Runtime	Date
1	Daniel Jaksland	0.02 s	2021-01-03 07:30:58
2	Mikael Fiala-Lundström	0.02 s	2021-06-08 12:42:27
3	leili	0.02 s	2022-03-18 17:07:13
4	Sano Gharzani	0.04 s	2023-11-10 10:39:53
5	Richard Arvehell	0.80 s	2022-12-03 16:40:11

#	User	Runtime	Date
1	Morten Clausen	0.04 s	2020-12-27 17:42:09

#	User	Runtime	Date
1	Hidden user	0.07 s	2021-01-24 17:58:15
2	Hidden user	0.08 s	2021-04-05 05:55:49
3	Michael Hoffmann	0.08 s	2021-05-11 20:20:36
4	Norbert Voelker	0.08 s	2021-11-27 20:16:43

#	User	Runtime	Date
1	Ng Tek In	0.00 s	2022-08-30 19:07:05
2	Brent Yorgey	0.00 s	2022-11-03 13:12:16
3	Aaron Lengyel	0.01 s	2022-02-12 02:42:23
4	Hidden user	0.01 s	2022-08-31 23:50:07

#	User	Runtime	Date
1	Crystal Sharpe	0.06 s	2020-08-04 22:46:11
2	Kadin Tang	0.06 s	2020-08-24 07:13:32
3	Wojciech T	0.06 s	2020-11-11 10:45:02
4	Steven Cheng	0.06 s	2021-01-03 08:48:39
5	Stela Palii	0.06 s	2021-01-12 08:01:25
6	Sven Rönnbäck	0.06 s	2021-01-23 23:08:29
7	Michael Phillotry	0.06 s	2021-03-12 03:43:53
8	Oscar Tegmyr	0.06 s	2021-12-26 20:59:06
9	Tan Gian Yion	0.06 s	2022-01-07 17:03:45
10	Collin Jakubik	0.06 s	2023-03-24 00:05:44

#	User	Runtime	Date
1	Kenneth Chen	0.08 s	2022-07-09 17:32:13
2	Bas Dirks	0.42 s	2021-12-26 08:33:31

#	User	Runtime	Date
1	Bjørn Chr. Soltvedt	0.02 s	2022-08-30 20:09:03
2	Christian Cederquist	0.02 s	2023-02-26 09:28:06

#	User	Runtime	Date
1	Adam Rankin	0.20 s	2023-04-23 20:26:56
2	Phường Lên	0.22 s	2020-04-15 09:15:05

#	User	Runtime	Date
1	Shehab Ahmed Hatem (CoreTiQ.com)	0.00 s	2023-11-16 19:33:53
2	Zeheng Li	0.00 s	2023-12-04 22:27:45

#	User	Runtime	Date
1	Justin Kruskie	0.01 s	2021-01-17 03:09:19
2	Saginaw George	0.01 s	2021-01-17 13:50:18

#	User	Runtime	Date
1	Godmar Back	0.03 s	2020-03-14 19:40:11
2	Johan Lyts	0.03 s	2020-03-21 15:10:40
3	Lars Åström	0.03 s	2020-03-25 14:26:40
4	Andreas Björklund	0.03 s	2020-03-29 15:59:52
5	Måns Magnusson	0.03 s	2020-08-26 23:39:55
6	Maj Stenmark	0.03 s	2020-08-28 22:05:39
7	Yanmarshus Bachtiar	0.03 s	2020-10-18 02:22:59
8	Anders Larsson	0.03 s	2022-01-03 20:53:59

#	User	Runtime	Date
1	raul feier	0.04 s	2022-06-06 20:13:46
2	Urša Kumelj	0.04 s	2022-06-17 21:53:15
3	Hanyu Lin	0.04 s	2022-06-25 18:48:12
4	Ryan Farrell	0.04 s	2022-07-01 01:26:54
5	Ching Chang	0.04 s	2022-07-15 09:22:54
6	Abedalhkeem Najeeb	0.04 s	2022-07-17 16:20:40
7	Nicholas Di	0.04 s	2022-07-27 01:18:18
8	genesis	0.04 s	2022-07-30 02:20:05
9	Kelly Dance	0.04 s	2022-07-30 04:33:39
10	Marcel Homšak	0.04 s	2022-08-15 17:23:59

#	User	Runtime	Date
1	Hidden user	0.05 s	2020-09-23 04:25:03
2	apt	0.05 s	2021-11-11 15:15:33
3	Nicholas Russell Saerang	0.05 s	2023-08-16 15:06:04
4	Thomas Feld	0.06 s	2023-01-02 15:52:53

#	User	Runtime	Date
1	Isak Jägberg	0.00 s	2020-10-22 20:15:32
2	Judith Hemp	0.00 s	2021-01-25 18:31:50
3	Muhammad Rais Fathin Mudzakir	0.00 s	2021-06-07 00:20:10
4	Eric Pinter	0.00 s	2022-05-10 04:42:36
5	Ryan Mueller	0.00 s	2023-02-10 15:28:26
6	Daniel Anker Hermansen	0.00 s	2023-05-28 18:47:22

#	User	Length	Date
1	Hugo Söderbergh	72	2024-03-14 22:38:21
2	Mubarek Shikur	127	2022-06-28 16:11:32
3	Johan Eka Santosa	143	2020-12-25 15:35:10
4	Akhil Varma Penmetsa	145	2023-01-25 00:08:37
5	Ramana Palivelu Bhagya Lakshmi	147	2020-12-31 10:20:50
6	Hidden user	147	2022-06-10 16:56:08
7	Hidden user	148	2023-12-09 02:23:04
8	RAGUL A S	152	2021-11-29 17:28:31
9	Võ Hoàng Tú	152	2022-10-28 04:23:34
10	andromeda378	153	2023-11-11 11:42:05

#	User	Length	Date
1	leili	608	2022-03-18 17:07:13
2	Mikael Fiala-Lundström	707	2021-06-08 12:42:27
3	Richard Arvehell	720	2022-12-03 16:40:11
4	Sano Gharzani	810	2023-11-10 10:39:53
5	Daniel Jaksland	835	2021-01-03 07:30:58

#	User	Length	Date
1	Yash Mundra	137	2022-12-27 00:45:36
2	Nguyen Tran Huu Duc	138	2022-10-04 15:11:59
3	Kevin Huai (Kevin)	139	2024-04-21 21:49:24
4	Marcus Oscarsson	142	2022-12-26 01:36:24
5	Lim Dewen, Aloysius	143	2020-08-05 09:08:36
6	Bui Phuong Nam	149	2022-11-05 06:20:22
7	Jack Parsons	151	2022-04-08 01:32:45
8	Thien Pham	152	2020-08-03 18:47:52
9	Emiliano Galeana Araujo	153	2023-06-10 04:40:34
10	Hidden user	154	2020-03-21 00:40:10

#	User	Length	Date
1	Morten Clausen	232	2020-12-27 17:42:09

#	User	Length	Date
1	Hidden user	175	2021-04-05 05:55:49
2	Hidden user	241	2021-01-24 17:58:15
3	Michael Hoffmann	415	2021-05-11 20:20:36
4	Norbert Voelker	691	2021-11-27 20:16:43

#	User	Length	Date
1	Brent Yorgey	78	2022-11-03 19:02:29
2	Aaron Lengyel	191	2022-02-12 02:42:23
3	Ng Tek In	627	2022-08-30 19:07:05
4	Hidden user	658	2022-08-31 23:50:07

#	User	Length	Date
1	Wojciech T	268	2020-11-06 15:34:26
2	Ethan Maher	276	2020-10-29 00:24:02
3	Hidden user	279	2020-08-27 13:03:03
4	Dylan Smith	281	2020-08-12 02:48:49
5	John Huddleston	286	2024-01-31 02:21:39
6	John Huddleston	286	2024-01-31 01:26:49
7	Enrico Miotto	295	2020-11-21 19:16:53
8	Tyler Kerch	304	2020-11-04 23:44:18
9	Anton Sandin	310	2022-05-02 09:31:17
10	Ting Kwok Poon	322	2021-06-01 16:23:34

#	User	Length	Date
1	Bas Dirks	603	2021-12-26 08:33:31
2	Kenneth Chen	1053	2022-07-09 17:32:13

#	User	Length	Date
1	Christian Cederquist	62	2023-02-26 09:28:06
2	Bjørn Chr. Soltvedt	139	2022-08-30 20:09:03

#	User	Length	Date
1	Phường Lên	351	2020-04-15 09:15:05
2	Adam Rankin	429	2023-04-23 20:26:56

#	User	Length	Date
1	Shehab Ahmed Hatem (CoreTiQ.com)	88	2023-11-16 19:33:53
2	Zeheng Li	102	2023-12-04 22:27:45

#	User	Length	Date
1	Justin Kruskie	162	2021-01-17 03:09:19
2	Saginaw George	230	2021-01-17 13:50:18

#	User	Length	Date
1	Johan Lyts	93	2020-03-21 15:10:40
2	Andreas Björklund	100	2020-03-29 15:59:52
3	Godmar Back	115	2020-03-14 19:40:11
4	Yanmarshus Bachtiar	115	2020-10-18 02:22:59
5	Lars Åström	153	2020-03-25 14:26:40
6	Anders Larsson	244	2022-01-03 20:53:59
7	Måns Magnusson	297	2020-08-26 23:39:55
8	Maj Stenmark	297	2020-08-28 22:05:39

#	User	Length	Date
1	Lee Isaac	62	2022-11-09 12:13:50
2	Morten Clausen	62	2023-01-27 12:46:02
3	Jason Liu	62	2023-04-19 23:09:10
4	Clement Oh	62	2023-05-06 08:26:35
5	Nicholas Russell Saerang	62	2023-08-16 14:34:30
6	Charles Ancheta	62	2023-03-18 03:55:13
7	Daniel Keyes	62	2023-03-24 00:35:08
8	Hugo Söderbergh	62	2024-03-14 21:41:36
9	Guk Yi Siong	62	2024-05-12 07:30:06
10	Ted Bjurlin	63	2022-11-03 03:02:06

#	User	Length	Date
1	Thomas Feld	51	2023-08-29 11:50:29
2	Nicholas Russell Saerang	57	2023-08-16 15:06:04
3	Hidden user	65	2020-09-23 04:25:03
4	apt	87	2021-11-11 15:15:33

#	User	Length	Date
1	Ryan Mueller	506	2023-02-10 15:28:26
2	Isak Jägberg	805	2020-10-22 20:15:32
3	Judith Hemp	1057	2021-01-25 18:31:50
4	Eric Pinter	1104	2022-05-10 04:42:36
5	Muhammad Rais Fathin Mudzakir	3838	2021-06-07 00:20:10
6	Daniel Anker Hermansen	20661	2023-05-28 18:47:22

Solution running time distribution