Problem I
Eulerian Graphs — Problem Statistics

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Submissions	654
Accepted submissions	285
Submission ratio	43.58%
Authors	208
Full solves [?]	193
Full solve Ratio	92.79%

#	User	Runtime	Language	Date
1	Bergur Snorrason	0.03 s	C	2021-10-09 09:46:50
2	Eyleifur Bjarkason	0.03 s	C	2021-10-10 22:07:17
3	Hidden user	0.11 s	C	2024-10-29 20:57:27
4	Luke M. Falk	0.15 s	C	2021-10-23 19:20:11
5	Markus Bao	0.17 s	C	2024-06-18 03:22:01
6	Naveen Kumar S	0.18 s	C	2025-05-09 15:27:51
7	Trym Haakon Nyheim	0.21 s	C	2025-07-03 11:49:54

#	User	Runtime	Language	Date
1	Frank Endriss	0.02 s	C++	2022-02-11 17:34:31
2	Joshua Andersson	0.02 s	C++	2022-10-12 05:10:42
3	Alexander Kravberg	0.03 s	C++	2021-12-31 02:37:58
4	Harrison Shen	0.13 s	C++	2021-10-21 03:32:57
5	Marc Phua	0.13 s	C++	2021-11-09 15:18:41
6	Hidden user	0.13 s	C++	2022-01-24 16:23:06
7	Hidden user	0.13 s	C++	2022-01-24 17:18:33
8	Vu Hoang Kien	0.13 s	C++	2022-01-30 13:41:55
9	Nick Wu	0.13 s	C++	2022-03-15 00:59:59
10	Johan Sannemo	0.14 s	C++	2021-10-09 19:02:21

#	User	Runtime	Language	Date
1	Norbert Voelker	0.26 s	Go	2022-01-26 19:28:28

#	User	Runtime	Language	Date
1	Steinar Simonnes	0.19 s	Haskell	2024-09-20 17:47:40

#	User	Runtime	Language	Date
1	Mason Wiedow	0.13 s	Java	2025-09-18 02:06:08
2	Sven Rönnbäck	0.14 s	Java	2022-02-21 21:47:20
3	Bjørn Dons	0.20 s	Java	2022-03-27 18:53:13
4	Crystal Sharpe	0.22 s	Java	2021-10-31 04:11:45
5	Alexander Giroux	0.25 s	Java	2022-03-31 01:45:52
6	Kevin Lim Yong Shen	0.52 s	Java	2022-01-25 06:43:49
7	Josh Henderson	0.64 s	Java	2021-10-09 22:33:04
8	Colombian Collegiate Programming League	0.64 s	Java	2025-03-22 03:23:59
9	Doug Goodman	0.65 s	Java	2021-10-09 16:03:02
10	Egil Skall	0.67 s	Java	2022-12-10 18:07:55

#	User	Runtime	Language	Date
1	Christian Cederquist	0.46 s	JavaScript (SpiderMonkey)	2023-06-11 12:55:27
2	Jimmy Gustafsson	0.46 s	JavaScript (SpiderMonkey)	2025-07-24 21:02:34
3	Bjørn Chr. Soltvedt	0.80 s	JavaScript (SpiderMonkey)	2022-03-21 12:45:53

#	User	Runtime	Language	Date
1	Jacob Huebner	0.70 s	Kotlin	2022-04-14 01:37:07

#	User	Runtime	Language	Date
1	Adam Yaser Sweilem	0.36 s	Lua	2024-09-26 16:20:12

#	User	Runtime	Language	Date
1	Andreas Björklund	0.41 s	Python 2	2021-11-10 16:42:08
2	Isaac Lee	0.42 s	Python 2	2022-07-12 05:12:25

#	User	Runtime	Language	Date
1	Petr	0.16 s	Python 3	2025-04-05 18:54:54
2	Kévin Dubrulle	0.21 s	Python 3	2025-06-23 12:16:38
3	Dominic Berzin Chua Way Gin	0.22 s	Python 3	2025-04-18 05:46:19
4	Ram Basnet	0.24 s	Python 3	2022-10-27 17:03:32
5	Yuxuan Jiang	0.24 s	Python 3	00:37:21
6	Nicholas Russell Saerang	0.30 s	Python 3	2023-07-01 19:04:07
7	Vincent Tandya	0.31 s	Python 3	2021-10-09 05:27:13
8	Hidden user	0.31 s	Python 3	2021-10-13 22:27:56
9	Josh Taylor	0.31 s	Python 3	2023-07-19 02:24:12
10	Casper Rysgaard	0.32 s	Python 3	2021-10-14 11:42:44

#	User	Runtime	Language	Date
1	Vincent Lagerros	0.01 s	Rust	2025-07-08 00:14:17
2	Erik Magnusson	0.09 s	Rust	2024-02-03 23:11:31
3	Bas Dirks	0.10 s	Rust	2025-02-02 20:29:49
4	Hidden user	0.17 s	Rust	2021-10-23 13:22:46

#	User	Length	Language	Date
1	Markus Bao	903	C	2024-06-18 03:22:01
2	Luke M. Falk	1012	C	2021-10-23 19:20:11
3	Naveen Kumar S	1119	C	2025-05-09 15:27:51
4	Hidden user	1980	C	2024-10-29 20:54:35
5	Bergur Snorrason	2131	C	2021-10-09 09:46:50
6	Trym Haakon Nyheim	2271	C	2025-07-03 11:49:54
7	Eyleifur Bjarkason	8505	C	2021-10-10 22:07:17

#	User	Length	Language	Date
1	陳心誠	584	C++	2024-08-22 15:10:36
2	Dmitry Lyubshin	593	C++	2023-04-08 17:52:53
3	Frederick Pek	621	C++	2022-01-25 05:58:57
4	Joel Niemelä	648	C++	2022-01-02 21:43:55
5	Hidden user	656	C++	2022-01-24 17:18:15
6	洪崇恩	666	C++	2025-08-24 10:13:36
7	Giovanni Gaio	686	C++	2023-08-19 17:02:27
8	Shashwat Chandra	692	C++	2022-01-26 08:47:52
9	PHOOp	708	C++	2025-03-31 06:19:26
10	Vu Hoang Kien	717	C++	2022-01-30 13:41:55

#	User	Length	Language	Date
1	Norbert Voelker	1092	Go	2022-01-26 19:28:28

#	User	Length	Language	Date
1	Steinar Simonnes	1699	Haskell	2024-09-20 17:48:12

#	User	Length	Language	Date
1	Doug Goodman	954	Java	2021-10-09 16:03:02
2	Crystal Sharpe	1103	Java	2021-10-31 04:11:45
3	Egil Skall	1110	Java	2022-12-10 18:07:55
4	Colombian Collegiate Programming League	1110	Java	2025-03-22 03:23:59
5	Josh Henderson	1354	Java	2021-10-09 22:33:04
6	Eric Leow Yu Quan	1371	Java	2022-12-01 14:40:00
7	Kevin Lim Yong Shen	2248	Java	2022-01-25 06:43:49
8	Alexander Giroux	2435	Java	2022-03-31 01:45:52
9	Sven Rönnbäck	3677	Java	2022-02-21 21:39:11
10	Mason Wiedow	4377	Java	2025-09-18 02:06:08

#	User	Length	Language	Date
1	Jimmy Gustafsson	299	JavaScript (SpiderMonkey)	2025-07-24 21:02:34
2	Christian Cederquist	577	JavaScript (SpiderMonkey)	2023-06-11 12:52:06
3	Bjørn Chr. Soltvedt	820	JavaScript (SpiderMonkey)	2022-03-21 12:45:53

#	User	Length	Language	Date
1	Jacob Huebner	987	Kotlin	2022-04-14 01:37:07

#	User	Length	Language	Date
1	Adam Yaser Sweilem	850	Lua	2024-09-26 16:20:12

#	User	Length	Language	Date
1	Andreas Björklund	430	Python 2	2021-11-10 16:42:08
2	Isaac Lee	672	Python 2	2022-07-12 05:12:25

#	User	Length	Language	Date
1	Guk Yi Siong	256	Python 3	2023-06-13 18:39:41
2	Josh Taylor	282	Python 3	2023-07-19 02:24:53
3	Vincent Tandya	354	Python 3	2021-10-09 05:27:13
4	Yong Mao	386	Python 3	2024-08-07 05:16:40
5	Nicholas Russell Saerang	431	Python 3	2023-07-01 19:03:44
6	Zach Tschetter	495	Python 3	2023-08-03 19:26:39
7	Ahmed Chamseddine	512	Python 3	2025-02-04 22:30:08
8	Iman Khodadi	518	Python 3	2022-11-08 16:59:36
9	Edwin Cubillos	614	Python 3	2024-09-21 22:34:02
10	Mikael Häglund	615	Python 3	2024-04-26 13:59:13

#	User	Length	Language	Date
1	Bas Dirks	1488	Rust	2025-02-02 20:07:28
2	Hidden user	1495	Rust	2021-10-23 13:22:46
3	Erik Magnusson	4309	Rust	2024-02-03 23:11:31
4	Vincent Lagerros	4789	Rust	2024-05-13 23:38:30

Solution running time distribution