Problem A
Ascending Photo — Problem Statistics

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Submissions	1654
Accepted submissions	268
Submission ratio	16.20%
Authors	348
Full solves [?]	151
Full solve Ratio	43.39%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.11 s	C	2019-08-27 16:17:07

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

#	User	Runtime	Language	Date
1	Vanisher	0.04 s	C++	2018-03-23 04:07:02
2	徐达烽	0.05 s	C++	2018-01-23 03:21:43
3	Lingyu Song	0.05 s	C++	2018-09-13 17:10:54
4	SpaceLazer	0.05 s	C++	2019-05-22 04:37:00
5	Hidden user	0.05 s	C++	2019-05-22 05:11:55
6	Derek Ren	0.05 s	C++	2019-05-22 07:28:24
7	Bob Jones	0.05 s	C++	2019-05-24 01:57:05
8	Hidden user	0.05 s	C++	2019-05-24 07:35:57
9	鄭博文	0.06 s	C++	2023-05-08 15:41:43
10	蔡東霖	0.06 s	C++	2025-05-16 10:50:55

#	User	Runtime	Language	Date
1	Joshua Fair	0.45 s	Java	2018-11-06 22:23:36
2	David Harmeyer	0.48 s	Java	2018-02-08 23:32:08
3	Jason Portillo	1.06 s	Java	2018-02-04 20:44:14
4	Martijn Muijsers	1.18 s	Java	2020-08-14 17:31:56
5	Sathvik Kuthuru	3.00 s	Java	2022-10-06 23:21:12

#	User	Runtime	Language	Date
1	Hidden user	0.19 s	Python 2	2017-12-01 00:25:40
2	Lingyu Song	0.20 s	Python 2	2018-09-13 18:06:35
3	Lam Gia Thuan	0.20 s	Python 2	2018-12-04 22:43:02
4	Andreas Björklund	1.30 s	Python 2	2019-11-22 07:43:44

#	User	Runtime	Language	Date
1	Wilbert	0.22 s	Python 3	2026-01-30 03:21:14
2	鄭博文	0.25 s	Python 3	2023-05-08 16:44:43
3	Caleb Dastrup	0.25 s	Python 3	2024-09-22 03:05:24
4	Doug Goodman	0.30 s	Python 3	2024-04-15 18:48:15
5	Torstein Strømme	0.52 s	Python 3	2017-12-08 03:57:19
6	Christopher Eliot Hall	0.52 s	Python 3	2026-02-07 19:07:05
7	Pinwen Su	0.57 s	Python 3	2019-05-22 02:33:45
8	Kerry Mo	0.65 s	Python 3	2019-05-22 07:20:00
9	Derek Ren	0.81 s	Python 3	2019-05-22 12:46:01
10	Yifan Yu	1.03 s	Python 3	2019-05-22 13:25:25

#	User	Length	Language	Date
1	Ivan Petrov	2776	C	2019-08-27 16:17:07

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

#	User	Length	Language	Date
1	Hidden user	976	C++	2025-03-05 17:33:12
2	Josenildo Silva	1012	C++	2018-08-07 21:02:48
3	Cameron Custer	1020	C++	2022-06-06 05:48:13
4	Jiahe Lu	1105	C++	2026-02-23 04:14:01
5	patrickh	1112	C++	2025-03-13 15:12:13
6	Alexander Skidanov	1128	C++	2026-01-21 16:08:01
7	Anon Emous	1191	C++	2019-05-23 05:59:38
8	Mohamed Anany	1195	C++	2019-09-30 17:46:38
9	Đức Minh	1196	C++	2020-02-28 18:16:33
10	Ken	1224	C++	2019-05-23 04:43:12

#	User	Length	Language	Date
1	Jason Portillo	4479	Java	2018-02-04 20:44:14
2	Martijn Muijsers	4964	Java	2020-08-14 17:31:56
3	Joshua Fair	5029	Java	2018-11-06 22:23:36
4	David Harmeyer	5828	Java	2018-02-08 23:32:08
5	Sathvik Kuthuru	9109	Java	2022-10-06 23:21:12

#	User	Length	Language	Date
1	Hidden user	838	Python 2	2017-12-01 00:25:40
2	Lingyu Song	874	Python 2	2018-09-13 18:06:35
3	Lam Gia Thuan	1236	Python 2	2018-12-04 22:43:02
4	Andreas Björklund	2014	Python 2	2019-11-22 07:43:44

#	User	Length	Language	Date
1	Caleb Dastrup	617	Python 3	2024-09-22 03:05:24
2	Derek Ren	1116	Python 3	2019-05-22 12:46:01
3	chenghao wen	1169	Python 3	2023-11-29 07:41:14
4	Wilbert	1202	Python 3	2026-01-30 03:21:14
5	Pinwen Su	1393	Python 3	2019-05-22 02:33:45
6	Kerry Mo	1440	Python 3	2019-05-22 05:51:04
7	鄭博文	1698	Python 3	2023-05-08 16:44:43
8	Christopher Eliot Hall	1940	Python 3	2026-02-07 19:08:28
9	Doug Goodman	2048	Python 3	2024-04-15 18:48:15
10	Yifan Yu	2512	Python 3	2019-05-22 13:25:25

Solution running time distribution