Problem A
Ascending Photo — Problem Statistics

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Submissions	1709
Accepted submissions	285
Submission ratio	16.68%
Authors	365
Full solves [?]	166
Full solve Ratio	45.48%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.11 s	C	2019-08-27 14:17:07

#	User	Runtime	Language	Date
1	Simon M. Binyamin	0.81 s	C#	2020-07-19 17:52:17

#	User	Runtime	Language	Date
1	Vanisher	0.04 s	C++	2018-03-23 03:07:02
2	徐达烽	0.05 s	C++	2018-01-23 02:21:43
3	Lingyu Song	0.05 s	C++	2018-09-13 15:10:54
4	SpaceLazer	0.05 s	C++	2019-05-22 02:37:00
5	Hidden user	0.05 s	C++	2019-05-22 03:11:55
6	Derek Ren	0.05 s	C++	2019-05-22 05:28:24
7	Bob Jones	0.05 s	C++	2019-05-23 23:57:05
8	Hidden user	0.05 s	C++	2019-05-24 05:35:57
9	鄭博文	0.06 s	C++	2023-05-08 13:41:43
10	蔡東霖	0.06 s	C++	2025-05-16 08:50:55

#	User	Runtime	Language	Date
1	Joshua Fair	0.45 s	Java	2018-11-06 21:23:36
2	David Harmeyer	0.48 s	Java	2018-02-08 22:32:08
3	Jason Portillo	1.06 s	Java	2018-02-04 19:44:14
4	Martijn Muijsers	1.18 s	Java	2020-08-14 15:31:56
5	Sathvik Kuthuru	3.00 s	Java	2022-10-06 21:21:12

#	User	Runtime	Language	Date
1	Hidden user	0.19 s	Python 2	2017-11-30 23:25:40
2	Lingyu Song	0.20 s	Python 2	2018-09-13 16:06:35
3	Lam Gia Thuan	0.20 s	Python 2	2018-12-04 21:43:02
4	Andreas Björklund	1.30 s	Python 2	2019-11-22 06:43:44

#	User	Runtime	Language	Date
1	台北六中	0.20 s	Python 3	2026-03-15 06:31:25
2	Wilbert	0.22 s	Python 3	2026-01-30 02:21:14
3	鄭博文	0.25 s	Python 3	2023-05-08 14:44:43
4	Caleb Dastrup	0.25 s	Python 3	2024-09-22 01:05:24
5	Doug Goodman	0.30 s	Python 3	2024-04-15 16:48:15
6	Torstein Strømme	0.52 s	Python 3	2017-12-08 02:57:19
7	Christopher Eliot Hall	0.52 s	Python 3	2026-02-07 18:07:05
8	Pinwen Su	0.57 s	Python 3	2019-05-22 00:33:45
9	Kerry Mo	0.65 s	Python 3	2019-05-22 05:20:00
10	Derek Ren	0.81 s	Python 3	2019-05-22 10:46:01

#	User	Length	Language	Date
1	Ivan Petrov	2776	C	2019-08-27 14:17:07

#	User	Length	Language	Date
1	Simon M. Binyamin	3369	C#	2020-07-23 16:37:18

#	User	Length	Language	Date
1	Hidden user	976	C++	2025-03-05 16:33:12
2	Josenildo Silva	1012	C++	2018-08-07 19:02:48
3	Cameron Custer	1020	C++	2022-06-06 03:48:13
4	Jiahe Lu	1105	C++	2026-02-23 03:14:01
5	patrickh	1112	C++	2025-03-13 14:12:13
6	Alexander Skidanov	1128	C++	2026-01-21 15:08:01
7	Anon Emous	1191	C++	2019-05-23 03:59:38
8	Mohamed Anany	1195	C++	2019-09-30 15:46:38
9	Đức Minh	1196	C++	2020-02-28 17:16:33
10	Ken	1224	C++	2019-05-23 02:43:12

#	User	Length	Language	Date
1	Jason Portillo	4479	Java	2018-02-04 19:44:14
2	Martijn Muijsers	4964	Java	2020-08-14 15:31:56
3	Joshua Fair	5029	Java	2018-11-06 21:23:36
4	David Harmeyer	5828	Java	2018-02-08 22:32:08
5	Sathvik Kuthuru	9109	Java	2022-10-06 21:21:12

#	User	Length	Language	Date
1	Hidden user	838	Python 2	2017-11-30 23:25:40
2	Lingyu Song	874	Python 2	2018-09-13 16:06:35
3	Lam Gia Thuan	1236	Python 2	2018-12-04 21:43:02
4	Andreas Björklund	2014	Python 2	2019-11-22 06:43:44

#	User	Length	Language	Date
1	Caleb Dastrup	617	Python 3	2024-09-22 01:05:24
2	Derek Ren	1116	Python 3	2019-05-22 10:46:01
3	chenghao wen	1169	Python 3	2023-11-29 06:41:14
4	Wilbert	1202	Python 3	2026-01-30 02:21:14
5	Pinwen Su	1393	Python 3	2019-05-22 00:33:45
6	Kerry Mo	1440	Python 3	2019-05-22 03:51:04
7	鄭博文	1698	Python 3	2023-05-08 14:44:43
8	台北六中	1855	Python 3	2026-03-15 06:31:25
9	Christopher Eliot Hall	1940	Python 3	2026-02-07 18:08:28
10	Doug Goodman	2048	Python 3	2024-04-15 16:48:15

Solution running time distribution