Problem A
Allergy Test — Problem Statistics

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Submissions	971
Accepted submissions	233
Submission ratio	24.00%
Authors	294
Full solves [?]	147
Full solve Ratio	50.00%

#	User	Runtime	Language	Date
1	Olav Røthe Bakken	0.01 s	C	2017-04-23 20:12:59
2	Sabit Zahin	0.02 s	C	2017-08-14 16:55:36
3	Alexander Bilde Pedersen	0.09 s	C	2025-02-07 17:51:26
4	Hidden user	0.20 s	C	2017-11-19 14:32:20
5	Ivan Petrov	0.21 s	C	2019-05-29 10:31:41
6	Anton Hansson	0.92 s	C	2009-10-31 20:46:27
7	Hidden user	1.02 s	C	2019-07-09 08:19:22

#	User	Runtime	Language	Date
1	Jan Knížek	0.00 s	C++	2017-04-01 16:09:57
2	Åsmund Hammer	0.00 s	C++	2017-04-20 13:46:27
3	Hidden user	0.00 s	C++	2018-04-27 13:28:03
4	Henning Koehler	0.00 s	C++	2018-07-18 03:15:53
5	Jacob Stringer	0.00 s	C++	2018-07-18 05:50:00
6	Long Qian	0.00 s	C++	2018-07-19 13:32:58
7	Ɖīmā	0.00 s	C++	2020-11-14 21:52:46
8	Lin Lee	0.00 s	C++	2022-04-19 13:12:58
9	امیرحسین حاجی هاشمی	0.00 s	C++	2023-09-04 20:31:57
10	Mikal Naustdal	0.01 s	C++	2017-03-28 09:28:20

#	User	Runtime	Language	Date
1	Norbert Voelker	0.00 s	Go	2023-07-26 15:38:54

#	User	Runtime	Language	Date
1	Linus Tufvesson	0.05 s	Java	2009-10-15 12:54:12
2	Hans Gylling	0.05 s	Java	2009-10-17 16:25:53
3	Åsmund Hammer	0.05 s	Java	2017-04-17 18:13:09
4	Erik Tjøswold	0.05 s	Java	2017-09-28 17:57:18
5	Kevin Lim Yong Shen	0.07 s	Java	2020-11-18 07:15:24
6	Marcus Johansson	0.08 s	Java	2009-10-30 12:45:45
7	Fu Jin	0.13 s	Java	2018-07-16 11:12:34
8	Pontus Eriksson	0.14 s	Java	2019-01-17 15:24:17
9	Klas af Geijerstam	0.15 s	Java	2017-04-25 15:53:08
10	Doug Goodman	0.15 s	Java	2021-01-18 18:07:34

#	User	Runtime	Language	Date
1	Ola Kaldestad	0.13 s	JavaScript (SpiderMonkey)	2017-04-23 19:12:18
2	Ola Næss Kaldestad	0.13 s	JavaScript (SpiderMonkey)	2017-04-23 19:14:27

#	User	Runtime	Language	Date
1	Hidden user	0.06 s	Python 2	2018-06-16 11:12:14
2	Andreas Björklund	0.07 s	Python 2	2018-11-30 07:35:21

#	User	Runtime	Language	Date
1	Lucia	0.02 s	Python 3	2019-06-02 03:15:34
2	Le Shay Chong	0.05 s	Python 3	2021-08-30 03:58:09
3	Emilie Klefbom	0.05 s	Python 3	2022-03-20 21:38:21
4	Katharina	0.05 s	Python 3	2023-04-13 21:09:03
5	Adam Gatmon	0.06 s	Python 3	2022-02-08 15:07:27
6	Xiaoyang Xu	0.07 s	Python 3	2025-11-20 03:35:30
7	Hidden user	0.14 s	Python 3	2019-12-04 03:09:56
8	Pål Grønås Drange	0.17 s	Python 3	2025-05-03 21:57:54
9	Shehab Ahmed Hatem	0.20 s	Python 3	2024-02-14 20:31:36
10	Ruizhe Jiang	0.27 s	Python 3	2025-12-06 02:45:46

#	User	Runtime	Language	Date
1	Jonas Sunde Valfridsson	0.66 s	Rust	2021-06-23 11:16:30
2	Daniel Anker Hermansen	0.93 s	Rust	2024-01-31 17:17:01
3	Yoeri Otten	1.49 s	Rust	2022-04-08 03:16:10

#	User	Length	Language	Date
1	Ivan Petrov	694	C	2019-05-29 10:31:41
2	Anton Hansson	842	C	2009-10-31 20:46:27
3	Hidden user	1483	C	2019-07-09 08:19:22
4	Olav Røthe Bakken	1550	C	2017-04-23 20:12:59
5	Sabit Zahin	1831	C	2017-08-14 16:55:36
6	Alexander Bilde Pedersen	2084	C	2025-02-07 17:51:26
7	Hidden user	2449	C	2017-11-19 14:32:20

#	User	Length	Language	Date
1	Teikn Smith	311	C++	2024-03-04 21:23:19
2	Josenildo Silva	539	C++	2018-06-22 00:56:38
3	Jerry Mao	576	C++	2017-07-05 02:20:20
4	Костя Малик	608	C++	2025-01-21 14:30:43
5	Tuukka Korhonen	610	C++	2022-03-27 17:11:53
6	Johan Wind	635	C++	2018-11-10 22:56:04
7	Vignesh V	653	C++	2019-06-14 12:38:12
8	Jeremy Lim	655	C++	2023-12-11 17:54:33
9	Hidden user	656	C++	2021-04-19 20:26:12
10	Nathaniel Ang	663	C++	2020-03-12 11:28:43

#	User	Length	Language	Date
1	Norbert Voelker	1719	Go	2023-07-26 15:38:54

#	User	Length	Language	Date
1	Gursimar Singh Miglani	864	Java	2021-12-02 14:53:02
2	Hidden user	1156	Java	2018-03-04 22:56:18
3	Sam Reinehr	1157	Java	2018-03-03 01:53:59
4	Erik Tjøswold	1341	Java	2017-09-28 17:57:18
5	Erik Baalhuis	1653	Java	2017-04-04 18:36:24
6	Hans Gylling	2142	Java	2009-10-17 16:25:53
7	Swopnil Shrestha	2409	Java	2018-12-31 21:41:48
8	Nour Qweder	2409	Java	2019-05-25 17:59:20
9	Krisztián Zaja	2409	Java	2019-06-02 12:44:09
10	Lorenzo Bonetti	2409	Java	2020-05-05 15:11:00

#	User	Length	Language	Date
1	Ola Næss Kaldestad	688	JavaScript (SpiderMonkey)	2017-04-23 19:14:27
2	Ola Kaldestad	694	JavaScript (SpiderMonkey)	2017-04-23 19:12:18

#	User	Length	Language	Date
1	Hidden user	539	Python 2	2018-06-16 11:12:14
2	Andreas Björklund	750	Python 2	2018-11-30 07:35:21

#	User	Length	Language	Date
1	Pål Grønås Drange	297	Python 3	2025-05-03 21:59:35
2	Nathan Collins	421	Python 3	2017-05-14 00:14:22
3	Ole Vik Lysne	486	Python 3	2026-01-06 20:55:43
4	Ruizhe Jiang	652	Python 3	2025-12-06 02:45:46
5	Xiaoyang Xu	965	Python 3	2025-11-20 03:35:30
6	Katharina	1051	Python 3	2023-04-13 21:09:03
7	Shehab Ahmed Hatem	1479	Python 3	2024-02-14 20:31:36
8	Adam Gatmon	1584	Python 3	2022-02-08 15:07:27
9	Le Shay Chong	1619	Python 3	2021-08-30 03:58:09
10	Lucia	2321	Python 3	2019-06-02 03:15:34

#	User	Length	Language	Date
1	Jonas Sunde Valfridsson	2266	Rust	2021-06-23 11:16:30
2	Yoeri Otten	2677	Rust	2022-04-08 03:14:42
3	Daniel Anker Hermansen	24843	Rust	2024-01-31 17:17:01

Solution running time distribution