Problem A
Boxes — Problem Statistics

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Submissions	3236
Accepted submissions	1247
Submission ratio	38.54%
Authors	875
Full solves [?]	754
Full solve Ratio	86.17%

#	User	Runtime	Language	Date
1	Chenzhang Hu	0.58 s	Bash	2024-04-17 18:46:01

#	User	Runtime	Language	Date
1	Hidden user	0.15 s	C	2021-01-16 15:39:02
2	Andreas Björklund	0.16 s	C	2019-05-24 07:01:54
3	Sanjiv Dinakar	0.16 s	C	2023-05-15 07:17:41
4	Ivan Petrov	0.46 s	C	2019-08-26 20:48:51
5	Mirel Cosulschi	0.50 s	C	2024-11-13 09:47:40
6	Eric Dand	0.84 s	C	2017-08-24 06:29:38

#	User	Runtime	Language	Date
1	Pablo Jim Otondo Alquizalet	1.15 s	C#	2017-04-27 06:26:58
2	Andriy Zyevakov	1.15 s	C#	2025-11-24 05:35:27
3	Pablo Otondo	1.35 s	C#	2017-04-27 05:30:18
4	Ariel Lenis	1.50 s	C#	2017-04-27 00:48:09
5	Hidden user	1.87 s	C#	2022-08-27 12:30:06
6	Pablo Gaspar Romero Salinas	2.36 s	C#	2017-04-27 05:54:13

#	User	Runtime	Language	Date
1	Joel Au	0.06 s	C++	2020-11-11 04:37:08
2	Stefan Constantin	0.07 s	C++	2021-04-13 22:44:51
3	Henry Xia	0.08 s	C++	2019-10-21 18:49:15
4	Jonathan Hallström	0.08 s	C++	2023-06-24 22:05:43
5	Michael Zündorf	0.09 s	C++	2019-09-09 02:26:37
6	Daniel Schemmel	0.09 s	C++	2020-02-22 04:21:22
7	Xinyu Ma	0.10 s	C++	2016-09-10 09:01:16
8	Noszály Áron	0.10 s	C++	2018-09-09 16:38:59
9	Qing Wang	0.13 s	C++	2018-09-12 00:00:49
10	Otavio Sartorelli de Toledo Piza	0.13 s	C++	2023-10-16 07:07:01

#	User	Runtime	Language	Date
1	Hà Minh Ngọc	0.46 s	Java	2016-12-12 08:40:31
2	Bjørn Dons	0.82 s	Java	2023-04-16 16:01:12
3	Jimmy Dinh	0.83 s	Java	2023-10-12 06:40:12
4	Martijn Muijsers	0.92 s	Java	2017-03-04 19:56:58
5	Paul Boddington	0.93 s	Java	2017-02-05 01:02:59
6	Andrew Polizzotto	1.04 s	Java	2020-03-09 17:17:32
7	Paulo Vilela	1.08 s	Java	2017-03-28 15:42:00
8	Zeyi Sun	1.09 s	Java	2023-12-20 02:41:05
9	Hidden user	1.11 s	Java	2019-06-26 05:02:05
10	Atharva Nagarkar	1.12 s	Java	2019-03-30 08:40:14

#	User	Runtime	Language	Date
1	Lætitia Fesselier	1.44 s	JavaScript (Node.js)	2019-01-14 00:05:58

#	User	Runtime	Language	Date
1	Christian Pilegaard Cederquist	2.31 s	JavaScript (SpiderMonkey)	2023-08-10 22:12:54
2	Bjørn Chr. Soltvedt	3.05 s	JavaScript (SpiderMonkey)	2019-03-07 00:29:30

#	User	Runtime	Language	Date
1	Hidden user	1.17 s	Julia	2023-11-18 15:10:43

#	User	Runtime	Language	Date
1	Jacob Huebner	1.05 s	Kotlin	2021-05-11 10:16:31
2	Hidden user	1.48 s	Kotlin	2019-12-06 23:53:55
3	Min-Zheng Shieh	3.02 s	Kotlin	2021-05-28 07:17:15
4	Sergey Jakobsen	3.16 s	Kotlin	2021-11-13 02:58:06
5	Phường Lên	3.33 s	Kotlin	2019-12-06 16:49:23

#	User	Runtime	Language	Date
1	Renate	3.09 s	PHP	2023-07-29 13:11:04

#	User	Runtime	Language	Date
1	Hermon Mulat	0.61 s	Python 2	2017-08-16 20:05:33
2	Justin Su	0.62 s	Python 2	2018-02-23 16:25:44
3	Hidden user	0.63 s	Python 2	2019-11-06 17:23:40
4	Zhanyi Sun	0.63 s	Python 2	2019-11-16 21:58:42
5	Haochen Chen	0.67 s	Python 2	2016-10-09 21:14:58
6	Alexander Bilde Pedersen	0.73 s	Python 2	2023-04-07 16:25:58
7	Lucas Patten	0.74 s	Python 2	2024-02-10 20:59:59
8	Luhao Qi	0.75 s	Python 2	2023-12-15 17:36:16
9	Yanmarshus Bachtiar	1.05 s	Python 2	2021-06-04 13:50:02
10	Sunera Avinash	1.19 s	Python 2	2017-11-01 14:54:44

#	User	Runtime	Language	Date
1	台北六中	0.52 s	Python 3	2026-03-15 09:37:45
2	Naveen Kumar S	0.55 s	Python 3	2026-02-13 17:42:26
3	Sharum Mazharuddin	0.56 s	Python 3	2025-12-01 22:07:19
4	Hidden user	0.57 s	Python 3	2022-08-26 23:38:06
5	Yong Mao	0.58 s	Python 3	2022-07-08 03:35:50
6	Muaadh Alhamdi	0.59 s	Python 3	2025-12-01 13:35:57
7	Oskar Haarklou Veileborg	0.64 s	Python 3	2020-11-15 17:27:36
8	Syrus Muhammed	0.65 s	Python 3	2025-12-01 03:17:17
9	Hidden user	0.67 s	Python 3	2025-11-21 09:31:50
10	Hiteshwari Nanda	0.67 s	Python 3	2025-12-02 03:33:08

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.06 s	Rust	2026-01-17 18:25:07
2	Klas af Geijerstam	0.12 s	Rust	2022-05-21 11:15:24
3	gard heine kalland	0.81 s	Rust	2024-05-19 18:45:13
4	Krish Lal	1.60 s	Rust	2025-11-20 09:31:36
5	Logan Travis	2.46 s	Rust	2025-11-24 03:09:11

#	User	Length	Language	Date
1	Chenzhang Hu	1576	Bash	2024-04-17 18:46:01

#	User	Length	Language	Date
1	Mirel Cosulschi	924	C	2024-11-13 09:44:34
2	Andreas Björklund	1354	C	2019-05-24 07:01:54
3	Eric Dand	1611	C	2017-08-24 06:29:38
4	Sanjiv Dinakar	2022	C	2023-05-15 07:17:41
5	Hidden user	2138	C	2021-01-16 15:48:29
6	Ivan Petrov	2644	C	2019-08-26 20:48:51

#	User	Length	Language	Date
1	Pablo Otondo	2575	C#	2017-04-27 05:30:18
2	Pablo Gaspar Romero Salinas	3006	C#	2017-04-27 05:54:13
3	Hidden user	3054	C#	2022-08-27 09:32:28
4	Pablo Jim Otondo Alquizalet	3108	C#	2017-04-27 06:22:51
5	Ariel Lenis	5956	C#	2017-04-27 00:48:09
6	Andriy Zyevakov	8845	C#	2025-11-24 05:35:27

#	User	Length	Language	Date
1	Vu Duy Dung	719	C++	2017-11-02 07:53:43
2	天涵 徐	737	C++	2016-09-10 10:17:03
3	Nguyen Xuan Tung	770	C++	2020-03-24 09:53:40
4	Peixin Zhu	776	C++	2016-09-10 10:24:50
5	Jansen Craft	782	C++	2024-09-18 20:07:14
6	Hidden user	790	C++	2022-01-29 20:12:19
7	Way Tan	793	C++	2018-12-23 16:18:58
8	Sai Kiran Reddy	814	C++	2016-09-10 09:47:24
9	Wen Hao	821	C++	2023-03-10 18:01:38
10	Garðar Ingvarsson	828	C++	2019-10-01 12:31:24

#	User	Length	Language	Date
1	Rami Alkawadri	1167	Java	2022-11-13 19:40:53
2	Caleb Clark	1252	Java	2018-02-10 19:17:23
3	尘三浪	1281	Java	2023-12-18 00:49:17
4	Ethan Toney	1327	Java	2016-10-09 19:36:33
5	Zhanyi Sun	1347	Java	2019-11-16 22:03:28
6	Daniel Joyce	1428	Java	2020-05-26 15:49:21
7	Julia Holzlehner	1438	Java	2023-12-20 13:51:13
8	Evan Michael Bailey	1442	Java	2020-06-13 20:22:18
9	Ben Blodgett	1446	Java	2023-06-13 16:51:53
10	Angelina	1578	Java	2023-12-19 21:50:19

#	User	Length	Language	Date
1	Lætitia Fesselier	3781	JavaScript (Node.js)	2019-01-14 00:05:58

#	User	Length	Language	Date
1	Christian Pilegaard Cederquist	637	JavaScript (SpiderMonkey)	2023-08-10 22:12:54
2	Bjørn Chr. Soltvedt	690	JavaScript (SpiderMonkey)	2019-03-07 00:29:30

#	User	Length	Language	Date
1	Hidden user	1127	Julia	2023-11-18 15:10:43

#	User	Length	Language	Date
1	Phường Lên	658	Kotlin	2019-12-06 16:49:23
2	Sergey Jakobsen	890	Kotlin	2021-11-13 02:58:06
3	Hidden user	1213	Kotlin	2019-12-06 23:53:55
4	Min-Zheng Shieh	1699	Kotlin	2021-05-28 07:17:15
5	Jacob Huebner	1970	Kotlin	2021-05-11 10:16:31

#	User	Length	Language	Date
1	Renate	1160	PHP	2023-07-29 13:11:04

#	User	Length	Language	Date
1	Justin Su	490	Python 2	2018-02-23 16:25:44
2	Sunera Avinash	493	Python 2	2017-11-01 14:54:44
3	Haggai Liu	544	Python 2	2017-09-16 05:01:06
4	Michael Liu	575	Python 2	2018-05-20 09:07:59
5	Lasse Lange Jakobsen	583	Python 2	2018-10-31 01:33:44
6	Luhao Qi	685	Python 2	2023-12-15 17:36:16
7	Zhanyi Sun	714	Python 2	2019-11-16 21:58:42
8	Alexander Bilde Pedersen	714	Python 2	2023-04-07 16:25:58
9	Lucas Patten	714	Python 2	2024-02-10 20:59:59
10	Hermon Mulat	716	Python 2	2017-08-16 20:05:33

#	User	Length	Language	Date
1	August Femtehjell	318	Python 3	2024-02-06 14:59:48
2	Hidden user	356	Python 3	2023-10-19 00:19:38
3	Michael Goldwasser	412	Python 3	2025-08-21 05:59:56
4	Casper Rysgaard	444	Python 3	2019-10-10 15:57:11
5	Sander Oppen	454	Python 3	2025-09-01 10:40:08
6	Jack Fox	494	Python 3	2021-01-31 22:55:17
7	Magnus Lillerønning Aune	506	Python 3	2024-05-16 12:05:53
8	Shariq Naiyer	513	Python 3	2023-11-28 06:26:54
9	Zach Tschetter	547	Python 3	2025-11-16 21:01:34
10	Aye Nyein Thaw	565	Python 3	2020-08-04 18:30:23

#	User	Length	Language	Date
1	gard heine kalland	1633	Rust	2024-05-19 18:45:13
2	Logan Travis	2263	Rust	2025-11-24 03:09:11
3	Krish Lal	3839	Rust	2025-11-20 09:31:36
4	Klas af Geijerstam	7382	Rust	2022-05-21 10:51:08
5	Vincent Lagerros	10749	Rust	2024-08-10 01:41:26

Solution running time distribution