Problem I
Contact Tracing — Problem Statistics

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Submissions	2539
Accepted submissions	301
Submission ratio	11.86%
Authors	294
Full solves [?]	182
Full solve Ratio	61.90%

#	User	Score	Language	Date
1	James Rettie	100	C	2022-08-10 03:58:16

#	User	Score	Language	Date
1	Modak Shantanu Bharat	100	Java	2020-11-17 05:23:09
2	Morten Flensborg Jensen	100	Java	2021-12-04 15:40:44
3	Yiu Yu Ho	100	Java	2021-12-08 07:36:38
4	Logan Pipes	100	Java	2023-02-26 01:42:52
5	Bjørn Dons	100	Java	2023-07-10 21:23:09
6	Koh Guan Zeh	100	Java	2023-11-02 03:34:43
7	Mattias Gustafsson	100	Java	2025-02-21 17:22:51

#	User	Score	Language	Date
1	Modak Shantanu Bharat	100	Python 2	2020-11-17 05:23:50

#	User	Score	Language	Date
1	Sherman Chann Zhi Shen	100	Rust	2021-10-21 05:08:02
2	Daniel Anker Hermansen	100	Rust	2024-08-04 22:54:50

#	User	Runtime	Language	Date
1	James Rettie	0.10 s	C	2022-08-10 03:58:16

#	User	Runtime	Language	Date
1	Eljer Chua	0.01 s	C++	2020-11-18 18:32:46
2	Jeroen Op de Beek	0.01 s	C++	2021-10-28 14:01:37
3	Nicholas Chung Jun Jie	0.01 s	C++	2022-03-27 12:04:34
4	Hidden user	0.01 s	C++	2023-04-08 07:05:09
5	Hidden user	0.02 s	C++	2020-11-17 20:07:09
6	Wira Azmoon	0.02 s	C++	2020-11-18 07:24:47
7	Hidden user	0.02 s	C++	2020-11-18 15:29:59
8	Marc Phua	0.02 s	C++	2020-11-18 18:13:31
9	Brandon Foong	0.02 s	C++	2020-11-27 18:48:36
10	Tang Ethan Yidong	0.02 s	C++	2021-10-23 05:34:35

#	User	Runtime	Language	Date
1	Bjørn Dons	0.27 s	Java	2023-07-10 21:23:09
2	Koh Guan Zeh	0.41 s	Java	2023-11-02 03:34:43
3	Morten Flensborg Jensen	0.45 s	Java	2021-12-04 15:40:44
4	Logan Pipes	0.56 s	Java	2023-02-26 01:42:52
5	Modak Shantanu Bharat	0.70 s	Java	2020-11-17 05:23:09
6	Yiu Yu Ho	0.71 s	Java	2021-12-08 07:36:38
7	Mattias Gustafsson	0.97 s	Java	2025-02-21 17:22:51

#	User	Runtime	Language	Date
1	Modak Shantanu Bharat	0.26 s	Python 2	2020-11-17 05:23:50

#	User	Runtime	Language	Date
1	Zhang Wei Ethan	0.13 s	Python 3	2022-05-02 18:09:43
2	Hidden user	0.13 s	Python 3	2022-05-03 13:12:57
3	Lim Fang Xiang	0.13 s	Python 3	2023-08-22 08:33:35
4	Nicholas Russell Saerang	0.13 s	Python 3	2023-09-30 02:48:25
5	Andreas Björklund	0.13 s	Python 3	2025-02-26 17:22:45
6	Hidden user	0.14 s	Python 3	2022-04-27 04:42:02
7	Ly	0.14 s	Python 3	2022-05-02 19:48:19
8	Ole Vik Lysne	0.14 s	Python 3	2024-09-18 15:02:00
9	Guo Ziyi	0.15 s	Python 3	2022-04-27 16:09:56
10	Hidden user	0.15 s	Python 3	2022-05-03 03:44:13

#	User	Runtime	Language	Date
1	Daniel Anker Hermansen	0.10 s	Rust	2024-08-04 22:54:50
2	Sherman Chann Zhi Shen	0.12 s	Rust	2021-10-21 05:08:02

#	User	Length	Language	Date
1	James Rettie	3559	C	2022-08-10 03:58:16

#	User	Length	Language	Date
1	Matteo Zappia	1041	C++	2021-11-15 00:51:29
2	Choi Min Suk	1047	C++	2022-07-23 17:02:26
3	Hidden user	1149	C++	2020-11-17 20:07:09
4	Andreas Alberg	1185	C++	2023-09-12 11:15:17
5	Jeremy Lim	1230	C++	2024-01-08 17:10:11
6	Alessandro Dario	1249	C++	2023-10-27 16:41:41
7	Mutiraj Laksanawisit	1261	C++	2023-04-21 07:11:32
8	Dmitry Lyubshin	1290	C++	2023-04-25 05:52:33
9	Ben Wu	1304	C++	2021-10-28 08:48:23
10	Marc Phua	1310	C++	2020-11-18 18:12:38

#	User	Length	Language	Date
1	Mattias Gustafsson	2654	Java	2025-02-21 17:22:51
2	Koh Guan Zeh	3024	Java	2023-11-02 03:34:43
3	Morten Flensborg Jensen	3183	Java	2021-12-04 15:40:44
4	Modak Shantanu Bharat	4784	Java	2020-11-17 05:23:09
5	Logan Pipes	5208	Java	2023-02-26 01:42:52
6	Yiu Yu Ho	5880	Java	2021-12-08 07:36:38
7	Bjørn Dons	7189	Java	2023-07-10 21:23:09

#	User	Length	Language	Date
1	Modak Shantanu Bharat	1613	Python 2	2020-11-17 05:23:50

#	User	Length	Language	Date
1	Andreas Björklund	725	Python 3	2025-02-26 17:22:45
2	Hu Yijie	733	Python 3	2022-04-28 10:52:04
3	Oskar Haarklou Veileborg	740	Python 3	2021-08-19 19:28:39
4	Hidden user	787	Python 3	2022-04-25 04:49:21
5	Zhang Wei Ethan	798	Python 3	2022-05-02 18:10:57
6	Casper Rysgaard	800	Python 3	2022-01-31 15:34:51
7	Måns Magnusson	811	Python 3	2025-02-18 18:41:20
8	Hidden user	852	Python 3	2022-05-03 13:50:58
9	Ole Vik Lysne	857	Python 3	2024-09-18 15:02:00
10	Bryan Miller	860	Python 3	2022-05-02 18:15:20

#	User	Length	Language	Date
1	Sherman Chann Zhi Shen	2002	Rust	2021-10-21 05:08:02
2	Daniel Anker Hermansen	27944	Rust	2024-08-04 22:54:50

Solution running time distribution