Problem A
Promotions — Problem Statistics

Back to problem description

Submissions	1530
Accepted submissions	490
Submission ratio	32.03%
Authors	479
Full solves [?]	339
Full solve Ratio	70.77%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.11 s	C	2018-03-21 10:19:20

#	User	Runtime	Language	Date
1	Victor Vatn	0.01 s	C++	2021-08-04 12:08:49
2	Julius Thunström	0.01 s	C++	2023-05-07 00:24:54
3	Lawry Sorenson	0.01 s	C++	2025-11-05 18:12:16
4	Goutham Rajendran	0.02 s	C++	2016-10-29 20:52:27
5	Nils Gustafsson	0.02 s	C++	2019-09-20 19:36:52
6	Hidden user	0.02 s	C++	2019-10-02 10:48:43
7	Rui Jiang	0.02 s	C++	2019-11-08 15:59:49
8	Michael Zündorf	0.02 s	C++	2020-06-01 19:01:04
9	Dirk Neuhäuser	0.02 s	C++	2021-10-25 21:35:43
10	António Neves	0.02 s	C++	2022-05-17 02:06:08

#	User	Runtime	Language	Date
1	Jaine Lin Jing'en	0.23 s	Java	2025-10-23 05:29:34
2	XIA TANGZIHAN	0.25 s	Java	2025-10-20 05:27:28
3	Yap Xavier	0.27 s	Java	2024-10-28 18:22:10
4	Darrin Wiley	0.35 s	Java	2020-09-01 16:54:10
5	Liu Jiayue	0.35 s	Java	2022-11-10 08:41:47
6	Jeremy Tan Kai Qun	0.36 s	Java	2020-01-12 18:45:19
7	Rene Argento	0.37 s	Java	2023-04-30 21:01:48
8	Josenildo Silva	0.38 s	Java	2017-07-08 16:34:12
9	Kensen Shi	0.45 s	Java	2016-10-29 20:08:21
10	Hidden user	0.46 s	Java	2021-03-29 15:07:50

#	User	Runtime	Language	Date
1	Jiaxun Wei	0.56 s	JavaScript (Node.js)	2024-12-03 00:16:18

#	User	Runtime	Language	Date
1	Phường Lên	0.67 s	Kotlin	2020-07-20 02:14:41
2	Jake Bounds	1.82 s	Kotlin	2024-10-17 00:53:43

#	User	Runtime	Language	Date
1	Alejandro Romeo	0.15 s	Python 3	2025-08-10 18:45:55
2	Ray Ikome	0.32 s	Python 3	2024-09-28 08:02:55
3	Constantijn Dekker	0.34 s	Python 3	2022-05-28 20:37:43
4	Brett Jurman	0.54 s	Python 3	2023-09-26 00:46:25
5	John Zheng	0.58 s	Python 3	2024-02-14 02:11:36
6	Bach Khoa Do	0.59 s	Python 3	2023-09-19 10:03:10
7	Benjamin Kugelberg	0.59 s	Python 3	2023-09-30 16:08:18
8	Julien	0.60 s	Python 3	2024-01-19 13:47:47
9	Ethan	0.60 s	Python 3	2025-06-17 22:35:51
10	Mattias Davidsson	0.63 s	Python 3	2024-07-14 18:20:07

#	User	Length	Language	Date
1	Ivan Petrov	979	C	2018-03-21 10:19:20

#	User	Length	Language	Date
1	Lawry Sorenson	487	C++	2025-11-05 18:27:46
2	Darryl Teo	566	C++	2024-02-01 10:19:04
3	Teikn Smith	760	C++	2024-10-17 21:40:14
4	Nirmal Govindaraj	799	C++	2023-06-10 09:13:44
5	Asbjørn Lind	817	C++	2024-12-06 00:58:11
6	Lam Gia Thuan	836	C++	2017-08-29 11:36:24
7	bekarhunmain	870	C++	2024-07-24 20:21:29
8	Roger Chen	878	C++	2022-12-26 04:15:58
9	Joel Au	903	C++	2020-05-28 12:11:48
10	Modak Shantanu Bharat	908	C++	2019-12-27 10:09:09

#	User	Length	Language	Date
1	Paolo Pellizzoni	1512	Java	2019-12-05 19:11:07
2	Jeremy Lim	1553	Java	2024-02-19 06:31:00
3	Frederick Pek	1623	Java	2021-03-27 13:41:11
4	Jiru Xu	1641	Java	2016-10-29 22:08:14
5	Doug Goodman	1689	Java	2018-04-08 18:34:31
6	Logan Su	1759	Java	2016-10-29 23:40:19
7	Nguwi Qi Yue	1776	Java	2025-10-23 11:25:33
8	Bryan Ngu Shu Yu	1807	Java	2024-11-03 15:22:13
9	Chris Wu	1877	Java	2016-10-30 08:45:30
10	Kensen Shi	1885	Java	2016-10-29 20:08:21

#	User	Length	Language	Date
1	Jiaxun Wei	1531	JavaScript (Node.js)	2024-12-03 00:16:18

#	User	Length	Language	Date
1	Jake Bounds	1101	Kotlin	2024-10-17 00:53:43
2	Phường Lên	1457	Kotlin	2020-07-20 02:14:41

#	User	Length	Language	Date
1	Ismail Badaoui	695	Python 3	2024-01-18 18:35:13
2	Enrique Javier Cobo Jimenez	695	Python 3	2024-07-21 18:53:10
3	Thibault Ea	1018	Python 3	2024-01-26 17:03:39
4	Ethan	1025	Python 3	2025-06-17 22:35:51
5	John Zheng	1062	Python 3	2024-02-14 02:11:36
6	Bach Khoa Do	1113	Python 3	2023-09-19 10:03:10
7	Ray Ikome	1117	Python 3	2024-09-28 08:02:55
8	Mattias Davidsson	1139	Python 3	2024-07-14 18:20:07
9	Julien	1208	Python 3	2024-01-19 13:47:47
10	Mattias Davidsson	1376	Python 3	2024-07-14 18:09:21

Solution running time distribution