Problem A
Logo 2 — Problem Statistics

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Submissions	2270
Accepted submissions	437
Submission ratio	19.25%
Authors	359
Accepted authors	269
Author ratio	74.93%

#	User	Runtime	Language	Date
1	Nazim Djeradi	0.00 s	C	2022-11-13 04:50:09
2	Eyleifur Bjarkason	0.00 s	C	2025-07-04 20:20:13
3	Hidden user	0.02 s	C	2017-11-13 01:16:28
4	Sebastian Castro	0.02 s	C	2017-11-14 03:19:28
5	Max Rosen	0.02 s	C	2017-11-16 00:20:24
6	Hidden user	0.02 s	C	2017-11-24 03:53:01
7	Ivan Petrov	0.02 s	C	2019-12-16 14:13:05

#	User	Runtime	Language	Date
1	masosz	0.02 s	C#	2015-03-22 00:18:42
2	Falah	0.04 s	C#	2023-05-23 23:18:41
3	Rafael Steffen Nguyen Jensen	0.05 s	C#	2025-05-07 20:43:54

#	User	Runtime	Language	Date
1	Hidden user	0.08 s	Java	2017-11-15 13:49:37
2	Marco Purich	0.10 s	Java	2017-11-13 20:52:10
3	Lucas Chew	0.10 s	Java	2022-11-06 22:45:41
4	Sebastian Castro	0.14 s	Java	2017-11-15 01:54:23
5	Hidden user	0.14 s	Java	2017-11-15 03:24:33
6	Joakim Sunde	0.14 s	Java	2019-10-24 23:23:16
7	Paul-Andre Henegar	0.15 s	Java	2016-10-08 00:38:01
8	Yann Vonlanthen	0.15 s	Java	2017-11-11 03:38:42
9	Hidden user	0.15 s	Java	2017-11-12 20:30:12
10	Hidden user	0.15 s	Java	2017-11-14 05:45:17

#	User	Runtime	Language	Date
1	Bjørn Chr. Soltvedt	0.02 s	JavaScript (SpiderMonkey)	2016-06-25 11:32:28
2	Ionel Hindorean	0.03 s	JavaScript (SpiderMonkey)	2016-12-10 12:06:03
3	Hidden user	0.03 s	JavaScript (SpiderMonkey)	2017-11-12 17:21:58
4	Sebastian Castro	0.03 s	JavaScript (SpiderMonkey)	2017-11-13 18:19:39
5	Hidden user	0.03 s	JavaScript (SpiderMonkey)	2017-11-14 05:27:47
6	Hidden user	0.03 s	JavaScript (SpiderMonkey)	2017-11-16 13:42:36
7	Yassine Mhedhbi	0.03 s	JavaScript (SpiderMonkey)	2017-11-16 23:22:35
8	Hidden user	0.03 s	JavaScript (SpiderMonkey)	2017-11-17 00:27:13
9	Hidden user	0.03 s	JavaScript (SpiderMonkey)	2017-11-19 18:08:03
10	Hazem Abdel Aziz	0.03 s	JavaScript (SpiderMonkey)	2017-11-20 03:14:47

#	User	Runtime	Language	Date
1	Michael Aghassi	0.08 s	PHP	2024-11-30 05:21:41

#	User	Runtime	Language	Date
1	Tore Norderud	0.04 s	Python 2	2015-11-04 00:11:50
2	Andreas Björklund	0.05 s	Python 2	2019-09-26 21:25:35
3	Thomas Feld	0.05 s	Python 2	2019-12-11 14:42:13
4	Asger Hautop Drewsen	0.13 s	Python 2	2015-11-18 02:51:52
5	Hidden user	0.15 s	Python 2	2017-11-24 05:27:08

#	User	Runtime	Language	Date
1	Christian Lindeström	0.02 s	Python 3	2016-09-05 17:52:48
2	Kayla Branson	0.02 s	Python 3	2017-11-17 05:18:22
3	James Elías Sigurðarson	0.03 s	Python 3	2015-06-16 22:53:31
4	Asa Witt	0.03 s	Python 3	2017-11-17 02:40:02
5	Ashique Hossain	0.03 s	Python 3	2017-11-17 03:56:41
6	Chad Fraser	0.03 s	Python 3	2017-11-17 18:56:12
7	Johan Wind	0.03 s	Python 3	2018-10-12 02:14:27
8	Hidden user	0.04 s	Python 3	2018-09-08 16:14:27
9	Muhammad Sohail	0.05 s	Python 3	2024-11-19 03:24:49
10	Anders Larsson	0.06 s	Python 3	2022-06-17 14:25:13

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.00 s	Rust	2024-08-25 18:08:25

#	User	Length	Language	Date
1	Nazim Djeradi	1995	C	2022-11-13 04:50:09
2	Ivan Petrov	2005	C	2019-12-16 14:13:05
3	Hidden user	2078	C	2017-11-13 01:53:30
4	Sebastian Castro	2120	C	2017-11-14 03:19:28
5	Hidden user	2120	C	2017-11-24 03:53:01
6	Max Rosen	2383	C	2017-11-16 00:20:24
7	Eyleifur Bjarkason	6124	C	2025-07-04 20:20:13

#	User	Length	Language	Date
1	Falah	2990	C#	2023-05-23 23:18:41
2	Rafael Steffen Nguyen Jensen	3594	C#	2025-05-07 20:43:54
3	masosz	4658	C#	2015-03-22 00:18:42

#	User	Length	Language	Date
1	Atli Fannar Franklín	1080	C++	2019-04-12 20:58:31
2	William Gan	1143	C++	2017-04-02 12:05:21
3	Zac Friggstad	1187	C++	2023-11-25 01:40:24
4	Hidden user	1231	C++	2017-11-12 04:05:08
5	Fuxiao Gao	1272	C++	2023-11-17 21:29:07
6	Brandon Zhang	1274	C++	2019-10-28 01:13:19
7	Jason Cannon	1296	C++	2019-10-18 17:58:43
8	Henry Xia	1340	C++	2017-11-14 03:19:20
9	Kiên Nguyễn Tiến Trung	1349	C++	2017-03-30 17:22:44
10	Jannik Olbrich	1351	C++	2024-03-06 20:56:05

#	User	Length	Language	Date
1	Doug Goodman	1623	Java	2018-02-04 21:00:57
2	Sebastian Castro	1712	Java	2017-11-15 01:54:23
3	Hidden user	1749	Java	2017-11-15 03:33:42
4	Hidden user	1826	Java	2017-11-17 04:47:31
5	Hidden user	2251	Java	2017-11-17 05:02:15
6	Adrian Koretski	2590	Java	2017-11-19 04:54:24
7	Dawanit Satitsumpun	2637	Java	2018-09-30 23:00:48
8	Paul-Andre Henegar	2651	Java	2016-10-08 00:38:01
9	Max Rosen	2762	Java	2017-11-16 02:00:20
10	Nick Wu	2812	Java	2017-11-15 02:21:25

#	User	Length	Language	Date
1	Bjørn Chr. Soltvedt	1342	JavaScript (SpiderMonkey)	2016-06-25 11:32:28
2	Christian Cederquist	1801	JavaScript (SpiderMonkey)	2023-08-13 18:50:37
3	Hazem Abdel Aziz	1989	JavaScript (SpiderMonkey)	2017-11-20 06:15:45
4	Yassine Mhedhbi	2397	JavaScript (SpiderMonkey)	2017-11-17 21:08:21
5	Hidden user	2796	JavaScript (SpiderMonkey)	2017-11-12 17:21:58
6	Hidden user	2796	JavaScript (SpiderMonkey)	2017-11-17 00:27:13
7	Rashik Habib	2796	JavaScript (SpiderMonkey)	2017-12-30 07:14:27
8	Sebastian Castro	2798	JavaScript (SpiderMonkey)	2017-11-13 18:19:39
9	Hidden user	2798	JavaScript (SpiderMonkey)	2017-11-14 05:27:47
10	Hidden user	2850	JavaScript (SpiderMonkey)	2017-11-16 13:42:36

#	User	Length	Language	Date
1	Michael Aghassi	2571	PHP	2024-11-30 05:21:41

#	User	Length	Language	Date
1	Thomas Feld	571	Python 2	2019-12-11 14:42:13
2	Asger Hautop Drewsen	817	Python 2	2015-11-18 02:51:52
3	Andreas Björklund	1054	Python 2	2019-09-26 21:25:35
4	Tore Norderud	1556	Python 2	2015-11-04 00:11:50
5	Hidden user	3011	Python 2	2017-11-24 05:27:08

#	User	Length	Language	Date
1	Blake Herrera	775	Python 3	2022-10-23 08:32:07
2	Johan Wind	874	Python 3	2018-10-12 02:14:27
3	Oskar Haarklou Veileborg	882	Python 3	2020-08-12 19:14:17
4	Chiringa Nom	1089	Python 3	2024-11-15 03:57:41
5	Marie Li Chionis	1089	Python 3	2024-11-18 02:54:47
6	Harry Zhang	1091	Python 3	2023-10-05 14:04:45
7	Simon Berens	1107	Python 3	2020-11-29 18:10:01
8	Ameer Masad	1116	Python 3	2024-11-29 08:49:22
9	Nicholas Russell Saerang	1116	Python 3	2023-07-04 15:59:46
10	Torres Torres Mejía	1118	Python 3	2024-11-17 23:57:01

#	User	Length	Language	Date
1	Vincent Lagerros	16737	Rust	2024-08-25 18:08:25

Solution running time distribution