Problem I
Installing Apps — Problem Statistics

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Submissions	2315
Accepted submissions	497
Submission ratio	21.47%
Authors	536
Full solves [?]	352
Full solve Ratio	65.67%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.00 s	C	2017-12-01 10:52:07
2	Mirel Cosulschi	0.03 s	C	2025-04-27 19:01:01

#	User	Runtime	Language	Date
1	Matthew Craven	0.18 s	Haskell	2021-02-13 21:29:12

#	User	Runtime	Language	Date
1	Josenildo Silva	0.09 s	Java	2018-08-09 04:01:05
2	Øyvind Haarberg	0.11 s	Java	2018-01-31 20:55:04
3	Doug Goodman	0.12 s	Java	2021-07-07 16:13:02
4	Travis Meade	0.13 s	Java	2018-01-27 22:19:25
5	David Harmeyer	0.16 s	Java	2018-01-27 23:03:22
6	Tyler VanHaren	0.17 s	Java	2018-01-27 20:52:43
7	Sam Zheng	0.19 s	Java	2022-10-29 22:23:17
8	Timothy Buzzelli	0.20 s	Java	2018-01-27 20:06:37
9	William Brigham	0.20 s	Java	2018-01-27 20:09:19
10	Jason Portillo	0.20 s	Java	2018-01-27 21:14:40

#	User	Runtime	Language	Date
1	Nicholas Johnson	0.35 s	Kotlin	2022-05-15 21:04:08
2	Jacob Huebner	0.35 s	Kotlin	2022-05-27 22:13:34

#	User	Runtime	Language	Date
1	Karthik Gajulapalli	0.06 s	Python 2	2018-10-14 13:08:43
2	Maj Stenmark	0.16 s	Python 2	2018-12-29 14:21:27
3	Jacky Dai	0.43 s	Python 2	2018-10-16 07:11:54
4	Torstein Strømme	0.64 s	Python 2	2017-11-30 17:08:33

#	User	Runtime	Language	Date
1	Ronchen Luo	0.06 s	Python 3	2025-09-15 02:41:36
2	Hrant Hovhannisyan	0.06 s	Python 3	2025-10-16 11:02:05
3	Erick Ross	0.08 s	Python 3	2021-04-15 05:11:11
4	Lennon Shikhman	0.10 s	Python 3	2024-10-15 19:34:37
5	Hidden user	0.10 s	Python 3	2025-05-26 03:27:20
6	Viktor Bello Thomsen	0.11 s	Python 3	2020-11-25 13:14:29
7	Goh Teng Fong	0.11 s	Python 3	2025-05-08 16:58:17
8	Nicholas Russell Saerang	0.13 s	Python 3	2024-06-08 10:18:54
9	Denil Bouafia	0.21 s	Python 3	2023-07-18 18:38:59
10	Ashwin Lall	0.24 s	Python 3	2023-02-08 16:55:19

#	User	Runtime	Language	Date
1	Yosuke Mizutani	0.04 s	Rust	2021-11-01 02:17:05
2	HuaiYuan Jing	0.04 s	Rust	2024-10-12 20:29:39

#	User	Length	Language	Date
1	Ivan Petrov	1357	C	2017-12-01 10:52:07
2	Mirel Cosulschi	1558	C	2025-04-27 19:01:01

#	User	Length	Language	Date
1	Bùi Việt Dũng	812	C++	2020-10-11 10:50:29
2	Eric Wong	867	C++	2025-03-28 15:57:37
3	Shirui Chen	884	C++	2018-08-03 02:35:02
4	Long Tuấn	899	C++	2018-11-22 07:19:28
5	Edoardo Morassutto	911	C++	2021-03-02 20:25:00
6	ㄚㄏㄨㄣ	917	C++	2021-05-05 09:01:41
7	Robert Cummings	918	C++	2020-03-08 22:49:30
8	Feng Chen	920	C++	2025-04-23 16:15:56
9	谢舒凡	946	C++	2018-11-16 08:20:18
10	Lingyu Song	958	C++	2018-09-13 15:55:12

#	User	Length	Language	Date
1	Matthew Craven	2793	Haskell	2021-02-13 21:29:12

#	User	Length	Language	Date
1	Travis Meade	1415	Java	2018-01-27 22:19:25
2	Timothy Buzzelli	1489	Java	2018-01-27 20:06:37
3	Josenildo Silva	1591	Java	2018-08-09 04:01:05
4	Joshua Fair	1859	Java	2018-01-28 02:59:50
5	Nathan Chen	1860	Java	2025-06-14 14:30:58
6	William Brigham	1878	Java	2018-01-27 20:09:19
7	Charize Cajuday	1978	Java	2023-08-16 18:51:04
8	Intothe Unknown	1979	Java	2023-08-14 10:06:32
9	Matthew Garrison	2093	Java	2018-02-03 10:18:15
10	Andrew McGehee	2104	Java	2019-03-04 23:40:50

#	User	Length	Language	Date
1	Nicholas Johnson	1466	Kotlin	2022-05-15 21:04:08
2	Jacob Huebner	1466	Kotlin	2022-05-27 22:13:34

#	User	Length	Language	Date
1	Karthik Gajulapalli	755	Python 2	2018-10-14 13:08:43
2	Maj Stenmark	1381	Python 2	2018-12-29 14:21:27
3	Jacky Dai	1605	Python 2	2018-10-16 07:11:54
4	Torstein Strømme	2504	Python 2	2017-11-30 17:08:33

#	User	Length	Language	Date
1	Lennart Meyling	573	Python 3	2023-09-10 13:58:53
2	Oskar Haarklou Veileborg	634	Python 3	2021-03-09 11:09:55
3	Hrant Hovhannisyan	698	Python 3	2025-10-16 11:02:05
4	Nicholas Russell Saerang	703	Python 3	2024-06-08 10:18:54
5	Hidden user	703	Python 3	2025-05-26 03:27:20
6	Viktor Bello Thomsen	722	Python 3	2020-11-25 13:14:29
7	Denil Bouafia	795	Python 3	2023-07-18 18:38:59
8	Lennon Shikhman	812	Python 3	2024-10-15 19:34:37
9	Ronchen Luo	851	Python 3	2025-09-15 02:41:36
10	Mithul Manivannan	1030	Python 3	2021-02-13 20:47:49

#	User	Length	Language	Date
1	HuaiYuan Jing	1802	Rust	2025-10-05 08:22:35
2	Yosuke Mizutani	2059	Rust	2021-11-01 02:17:05

Solution running time distribution