Problem A
Average Rank — Problem Statistics

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Submissions	736
Accepted submissions	197
Submission ratio	26.77%
Authors	173
Accepted authors	117
Author ratio	67.63%

#	User	Runtime	Language	Date
1	Troels Bjerre Lund	0.30 s	C	2019-11-26 11:29:43
2	Ivan Petrov	0.36 s	C	2019-11-19 10:15:26

#	User	Runtime	Language	Date
1	Hidden user	0.24 s	C++	2020-09-08 16:22:00
2	Arayi Khalatyan	0.32 s	C++	2019-11-18 18:30:11
3	Jeroen Op de Beek	0.32 s	C++	2021-03-24 01:40:05
4	Feng Chen	0.32 s	C++	2025-04-21 15:24:49
5	Arayi Khalatyan	0.33 s	C++	2023-02-18 22:31:36
6	Wiwit Rifa'i	0.34 s	C++	2019-11-17 12:09:34
7	Jeren Huang	0.34 s	C++	2021-01-04 10:27:41
8	ezptzd	0.34 s	C++	2022-03-11 22:41:20
9	Ivan Gritsenko	0.36 s	C++	2019-11-20 00:28:28
10	Jeremy Lim	0.36 s	C++	2025-03-17 18:13:59

#	User	Runtime	Language	Date
1	Quang Long Huynh	0.51 s	Java	2022-07-14 01:08:50
2	Benjamin Reidys	1.03 s	Java	2020-02-06 16:18:46
3	Ludo Pulles	2.67 s	Java	2019-12-01 23:18:32
4	Troels Bjerre Lund	3.19 s	Java	2019-12-07 14:14:26
5	Michael Wright	3.69 s	Java	2019-11-18 21:30:49
6	Linus Tufvesson	3.77 s	Java	2019-11-18 22:48:11

#	User	Runtime	Language	Date
1	Troels Bjerre Lund	0.44 s	Python 2	2019-11-19 20:42:55
2	Liu Yuhang	0.54 s	Python 2	2025-04-18 04:14:11
3	Francesco Silvestri	0.56 s	Python 2	2019-12-06 23:13:11
4	Andreas Björklund	2.79 s	Python 2	2019-11-19 19:05:22

#	User	Runtime	Language	Date
1	Viktor Bello Thomsen	0.57 s	Python 3	2020-10-28 01:17:38
2	Snild Dolkow	0.95 s	Python 3	2021-10-07 21:00:55
3	Nicholas Russell Saerang	1.43 s	Python 3	2025-03-10 01:01:15
4	Troels Bjerre Lund	1.90 s	Python 3	2019-11-19 20:39:44
5	Lennart Meyling	2.01 s	Python 3	2023-06-23 15:09:11
6	Gerth Stølting Brodal	2.25 s	Python 3	2019-11-21 21:44:48
7	Rens Leendertz	2.57 s	Python 3	2019-11-24 17:26:47
8	Francesco Silvestri	2.73 s	Python 3	2019-12-06 22:44:23
9	Jonatan Nilsson	3.11 s	Python 3	2020-11-01 20:39:45

#	User	Length	Language	Date
1	Ivan Petrov	1078	C	2019-11-19 10:15:26
2	Troels Bjerre Lund	1314	C	2019-11-26 11:29:43

#	User	Length	Language	Date
1	Liu Qiangdong	594	C++	2020-07-03 14:11:27
2	Artem Beznos	614	C++	2024-10-20 16:23:49
3	Wiwit Rifa'i	684	C++	2019-11-17 12:09:34
4	Bill Chen	759	C++	2020-05-09 08:30:35
5	Hưng Dương Quốc	779	C++	2019-11-19 20:09:09
6	Alexander Skidanov	839	C++	2024-10-20 16:41:58
7	Fares Ibraheem Basuni	840	C++	2021-05-29 11:40:25
8	Ivan Gritsenko	841	C++	2019-11-20 00:31:47
9	Zhiyi Luo	855	C++	2020-02-08 14:15:08
10	Stelian Chichirim	877	C++	2019-11-22 00:07:13

#	User	Length	Language	Date
1	Ludo Pulles	1235	Java	2019-12-01 23:18:32
2	Troels Bjerre Lund	1486	Java	2019-12-07 14:14:26
3	Benjamin Reidys	2926	Java	2020-02-06 16:18:46
4	Quang Long Huynh	4278	Java	2022-07-14 01:08:50
5	Michael Wright	10880	Java	2019-11-18 21:30:49
6	Linus Tufvesson	10885	Java	2019-11-18 22:48:11

#	User	Length	Language	Date
1	Troels Bjerre Lund	579	Python 2	2019-11-19 20:42:55
2	Liu Yuhang	625	Python 2	2025-04-18 04:14:11
3	Andreas Björklund	995	Python 2	2019-11-19 19:05:22
4	Francesco Silvestri	1713	Python 2	2019-12-06 23:13:11

#	User	Length	Language	Date
1	Troels Bjerre Lund	558	Python 3	2019-11-19 20:39:44
2	Lennart Meyling	652	Python 3	2023-06-23 15:09:11
3	Nicholas Russell Saerang	666	Python 3	2025-03-10 01:01:15
4	Gerth Stølting Brodal	709	Python 3	2019-11-21 21:39:35
5	Viktor Bello Thomsen	776	Python 3	2020-10-28 01:17:38
6	Rens Leendertz	853	Python 3	2019-11-24 17:26:47
7	Snild Dolkow	1369	Python 3	2021-10-07 21:00:55
8	Francesco Silvestri	1643	Python 3	2019-12-06 23:59:09
9	Jonatan Nilsson	2050	Python 3	2020-11-01 20:39:45

Solution running time distribution