Problem D
Factor-Free Tree — Problem Statistics

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Submissions	4125
Accepted submissions	891
Submission ratio	21.60%
Authors	439
Full solves [?]	348
Full solve Ratio	79.27%

#	User	Runtime	Language	Date
1	Ivan Petrov	0.51 s	C	2017-12-01 10:27:32

#	User	Runtime	Language	Date
1	呂 爾軒	0.37 s	C++	2019-11-10 12:18:59
2	Brandon Zhang	0.41 s	C++	2024-02-05 09:39:40
3	Gimran Abdullin	0.42 s	C++	2022-10-28 21:13:58
4	YanHao Ling	0.43 s	C++	2018-06-16 15:17:06
5	Jeremy Lim	0.46 s	C++	2025-05-19 20:12:31
6	Lingyu Song	0.47 s	C++	2018-09-14 06:09:21
7	Yu Feng	0.47 s	C++	2020-10-20 09:32:43
8	Hidden user	0.47 s	C++	2020-10-24 06:00:37
9	Sam Zhang	0.52 s	C++	2019-08-12 22:23:24
10	Lijun Chang	0.54 s	C++	2019-08-22 14:05:34

#	User	Runtime	Language	Date
1	Ryan Chew	0.52 s	Java	2020-11-05 12:13:37
2	Soo Qi Xuan Ian	0.68 s	Java	2020-10-24 12:02:36
3	Azeem Arshad Vasanwala	0.74 s	Java	2020-10-24 17:58:37
4	Benedict Khoo Ming Wei	0.74 s	Java	2020-10-25 16:17:36
5	Jeremy Lim	0.92 s	Java	2023-11-19 16:47:10
6	Lee Ze Xin	0.94 s	Java	2020-10-26 14:14:34
7	Zhang Zhiyao	0.96 s	Java	2020-10-25 09:57:37
8	Måns Magnusson	1.03 s	Java	2017-12-07 21:59:31
9	Lai Yu Heem	1.05 s	Java	2020-10-24 08:04:20
10	Hidden user	1.12 s	Java	2020-10-24 11:06:58

#	User	Runtime	Language	Date
1	Jacob Huebner	1.18 s	Kotlin	2023-06-06 09:56:59

#	User	Runtime	Language	Date
1	Torstein Strømme	1.69 s	Python 2	2017-12-10 20:34:33
2	Andreas Björklund	2.73 s	Python 2	2021-01-31 17:06:14

#	User	Runtime	Language	Date
1	Oskar Haarklou Veileborg	1.10 s	Python 3	2021-03-09 16:11:36
2	Einar Bernsen	1.64 s	Python 3	2025-05-25 01:18:37
3	Torstein Strømme	1.75 s	Python 3	2017-12-10 20:15:53
4	Arihant Jain	1.83 s	Python 3	2021-02-13 23:10:16
5	Karolina Gil	1.84 s	Python 3	2025-05-24 15:06:45
6	Fedor Semaev	1.85 s	Python 3	2025-05-16 12:55:21
7	Dilhan Salgado	1.88 s	Python 3	2023-05-27 20:08:18
8	Yiming	1.97 s	Python 3	2023-11-21 08:38:15
9	Oskar Heie	1.99 s	Python 3	2025-05-22 16:34:30
10	Nicholas Russell Saerang	2.09 s	Python 3	2023-02-20 19:27:27

#	User	Runtime	Language	Date
1	Jan Inge Sande	0.74 s	Rust	2025-05-23 11:25:28
2	Ole Vik Lysne	1.88 s	Rust	2024-09-05 01:15:57
3	Hidden user	2.04 s	Rust	2025-05-21 05:02:13
4	Daniel Anker Hermansen	5.22 s	Rust	2024-10-18 16:43:38

#	User	Length	Language	Date
1	Ivan Petrov	1770	C	2017-12-01 10:27:32

#	User	Length	Language	Date
1	Josenildo Silva	1134	C++	2018-08-10 04:35:20
2	Tuukka Korhonen	1274	C++	2022-05-07 16:33:52
3	Jeremy Lim	1353	C++	2024-01-01 22:15:47
4	Brandon Zhang	1368	C++	2024-02-05 09:37:07
5	Alex Waese-Perlman	1377	C++	2023-05-28 02:02:45
6	Khalid A	1406	C++	2024-11-01 16:18:27
7	Lian JD	1417	C++	2020-10-22 10:44:22
8	Timothy Wei	1460	C++	2023-12-23 00:46:27
9	ZHANG Bluebell	1497	C++	2020-10-24 15:52:29
10	Florian Leimgruber	1503	C++	2020-07-06 20:46:15

#	User	Length	Language	Date
1	Sourabh Raj Jaiswal	2272	Java	2020-10-22 18:00:25
2	Jeremy Lim	2557	Java	2023-11-19 16:47:10
3	Njål Pedersen	2711	Java	2025-05-22 09:26:19
4	lolern	2768	Java	2025-05-21 19:21:24
5	Lian JD	2897	Java	2020-10-25 22:24:28
6	Jacob Huebner	2996	Java	2023-05-28 23:18:20
7	Derek Goodwin	3035	Java	2018-01-31 16:47:10
8	Ryan Beck	3045	Java	2018-01-30 21:20:17
9	Ryan Chew	3069	Java	2020-10-17 11:04:44
10	Jason Portillo	3093	Java	2018-02-06 04:27:18

#	User	Length	Language	Date
1	Jacob Huebner	1999	Kotlin	2023-06-06 09:32:49

#	User	Length	Language	Date
1	Torstein Strømme	2455	Python 2	2017-12-10 20:34:33
2	Andreas Björklund	3135	Python 2	2021-01-31 17:06:14

#	User	Length	Language	Date
1	Benjamin Ye	523	Python 3	2024-03-08 04:47:42
2	Nicholas Russell Saerang	1191	Python 3	2023-02-20 19:23:02
3	Lennart Meyling	1307	Python 3	2023-11-09 02:23:39
4	Yiming	1330	Python 3	2023-11-21 08:38:15
5	Oskar Haarklou Veileborg	1678	Python 3	2021-03-09 16:11:36
6	Arihant Jain	1685	Python 3	2021-02-13 23:10:16
7	Eirik Pedersen	2229	Python 3	2025-05-24 13:17:48
8	Karolina Gil	2260	Python 3	2025-05-24 15:06:45
9	Ole Vik Lysne	2314	Python 3	2024-05-31 18:29:59
10	Torstein Strømme	2401	Python 3	2017-12-10 20:15:53

#	User	Length	Language	Date
1	Ole Vik Lysne	3162	Rust	2024-06-02 13:52:50
2	Jan Inge Sande	4386	Rust	2025-05-23 11:25:28
3	Hidden user	5129	Rust	2025-05-21 05:02:13
4	Daniel Anker Hermansen	20217	Rust	2024-10-18 16:43:38

Solution running time distribution